linux-merge January 2018

linux-merge@lists.open-mesh.org

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67 discussions

[linux-next] LinuxNextTracking branch, master, updated. next-20180108
by batman＠open-mesh.org 08 Jan '18

08 Jan '18

The following commit has been merged in the master branch: commit 6488a3b831b7c49d022e9f80aabc5e64a4d8bcba Merge: 3cbba5323cdfd71f00eeba2e14c8378b316911aa 418bb8b3ff50515c6d83fdf6d609331c676de178 Author: Stephen Rothwell <sfr(a)canb.auug.org.au> Date: Mon Jan 8 09:46:22 2018 +1100 Merge remote-tracking branch 'vfs/for-next' diff --combined arch/alpha/include/uapi/asm/Kbuild index 14a2e9af97e9,574fe90c8b58..9afaba5e5503 --- a/arch/alpha/include/uapi/asm/Kbuild +++ b/arch/alpha/include/uapi/asm/Kbuild @@@ -1,4 -1,4 +1,5 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h + generic-y += poll.h diff --combined arch/ia64/include/uapi/asm/Kbuild index f5c6967a93bb,4c9825edd4a3..c0527cfc48f0 --- a/arch/ia64/include/uapi/asm/Kbuild +++ b/arch/ia64/include/uapi/asm/Kbuild @@@ -1,5 -1,5 +1,6 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h generic-y += kvm_para.h + generic-y += poll.h diff --combined arch/m32r/include/uapi/asm/Kbuild index 451bf6071c6e,21f241553a2e..c3df55aeefe7 --- a/arch/m32r/include/uapi/asm/Kbuild +++ b/arch/m32r/include/uapi/asm/Kbuild @@@ -1,6 -1,6 +1,7 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h generic-y += kvm_para.h + generic-y += poll.h generic-y += siginfo.h diff --combined arch/mn10300/include/uapi/asm/Kbuild index 81271d3af47c,162fbdbb5fd5..b04fd1632051 --- a/arch/mn10300/include/uapi/asm/Kbuild +++ b/arch/mn10300/include/uapi/asm/Kbuild @@@ -1,5 -1,5 +1,6 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h + generic-y += poll.h generic-y += siginfo.h diff --combined arch/powerpc/kvm/book3s_xive.c index 0d750d274c4e,8f016ccf5424..6882bc94eba8 --- a/arch/powerpc/kvm/book3s_xive.c +++ b/arch/powerpc/kvm/book3s_xive.c @@@ -16,7 -16,7 +16,7 @@@ #include <linux/delay.h> #include <linux/percpu.h> #include <linux/cpumask.h> - #include <asm/uaccess.h> + #include <linux/uaccess.h> #include <asm/kvm_book3s.h> #include <asm/kvm_ppc.h> #include <asm/hvcall.h> @@@ -725,8 -725,7 +725,8 @@@ u64 kvmppc_xive_get_icp(struct kvm_vcp /* Return the per-cpu state for state saving/migration */ return (u64)xc->cppr << KVM_REG_PPC_ICP_CPPR_SHIFT | - (u64)xc->mfrr << KVM_REG_PPC_ICP_MFRR_SHIFT; + (u64)xc->mfrr << KVM_REG_PPC_ICP_MFRR_SHIFT | + (u64)0xff << KVM_REG_PPC_ICP_PPRI_SHIFT; } int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) @@@ -1559,7 -1558,7 +1559,7 @@@ static int xive_set_source(struct kvmpp /* * Restore P and Q. If the interrupt was pending, we - * force both P and Q, which will trigger a resend. + * force Q and !P, which will trigger a resend. * * That means that a guest that had both an interrupt * pending (queued) and Q set will restore with only @@@ -1567,7 -1566,7 +1567,7 @@@ * is perfectly fine as coalescing interrupts that haven't * been presented yet is always allowed. */ - if (val & KVM_XICS_PRESENTED || val & KVM_XICS_PENDING) + if (val & KVM_XICS_PRESENTED && !(val & KVM_XICS_PENDING)) state->old_p = true; if (val & KVM_XICS_QUEUED || val & KVM_XICS_PENDING) state->old_q = true; diff --combined arch/riscv/kernel/process.c index d74d4adf2d54,b01f71d2233b..d7c6ca7c95ae --- a/arch/riscv/kernel/process.c +++ b/arch/riscv/kernel/process.c @@@ -25,9 -25,9 +25,9 @@@ #include <linux/sched/task_stack.h> #include <linux/tick.h> #include <linux/ptrace.h> + #include <linux/uaccess.h> #include <asm/unistd.h> - #include <asm/uaccess.h> #include <asm/processor.h> #include <asm/csr.h> #include <asm/string.h> @@@ -76,7 -76,7 +76,7 @@@ void show_regs(struct pt_regs *regs void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp) { - regs->sstatus = SR_PIE /* User mode, irqs on */ | SR_FS_INITIAL; + regs->sstatus = SR_SPIE /* User mode, irqs on */ | SR_FS_INITIAL; regs->sepc = pc; regs->sp = sp; set_fs(USER_DS); @@@ -110,7 -110,7 +110,7 @@@ int copy_thread(unsigned long clone_fla const register unsigned long gp __asm__ ("gp"); memset(childregs, 0, sizeof(struct pt_regs)); childregs->gp = gp; - childregs->sstatus = SR_PS | SR_PIE; /* Supervisor, irqs on */ + childregs->sstatus = SR_SPP | SR_SPIE; /* Supervisor, irqs on */ p->thread.ra = (unsigned long)ret_from_kernel_thread; p->thread.s[0] = usp; /* fn */ diff --combined arch/riscv/mm/fault.c index 0713f3c67ab4,81e8c983d1fb..ceebfc29305b --- a/arch/riscv/mm/fault.c +++ b/arch/riscv/mm/fault.c @@@ -29,7 -29,6 +29,6 @@@ #include <asm/pgalloc.h> #include <asm/ptrace.h> - #include <asm/uaccess.h> /* * This routine handles page faults. It determines the address and the @@@ -63,7 -62,7 +62,7 @@@ asmlinkage void do_page_fault(struct pt goto vmalloc_fault; /* Enable interrupts if they were enabled in the parent context. */ - if (likely(regs->sstatus & SR_PIE)) + if (likely(regs->sstatus & SR_SPIE)) local_irq_enable(); /* diff --combined arch/score/include/uapi/asm/Kbuild index 81271d3af47c,162fbdbb5fd5..b04fd1632051 --- a/arch/score/include/uapi/asm/Kbuild +++ b/arch/score/include/uapi/asm/Kbuild @@@ -1,5 -1,5 +1,6 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h + generic-y += poll.h generic-y += siginfo.h diff --combined arch/x86/include/uapi/asm/Kbuild index 1e901e421f2d,e9f6b8e332bd..322681622d1e --- a/arch/x86/include/uapi/asm/Kbuild +++ b/arch/x86/include/uapi/asm/Kbuild @@@ -1,7 -1,7 +1,8 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h generated-y += unistd_32.h generated-y += unistd_64.h generated-y += unistd_x32.h + generic-y += poll.h diff --combined crypto/af_alg.c index 35d4dcea381f,a5748a076ec8..f41047ab60f5 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@@ -664,7 -664,7 +664,7 @@@ void af_alg_free_areq_sgls(struct af_al unsigned int i; list_for_each_entry_safe(rsgl, tmp, &areq->rsgl_list, list) { - ctx->rcvused -= rsgl->sg_num_bytes; + atomic_sub(rsgl->sg_num_bytes, &ctx->rcvused); af_alg_free_sg(&rsgl->sgl); list_del(&rsgl->list); if (rsgl != &areq->first_rsgl) @@@ -672,15 -672,14 +672,15 @@@ } tsgl = areq->tsgl; - for_each_sg(tsgl, sg, areq->tsgl_entries, i) { - if (!sg_page(sg)) - continue; - put_page(sg_page(sg)); - } + if (tsgl) { + for_each_sg(tsgl, sg, areq->tsgl_entries, i) { + if (!sg_page(sg)) + continue; + put_page(sg_page(sg)); + } - if (areq->tsgl && areq->tsgl_entries) sock_kfree_s(sk, tsgl, areq->tsgl_entries * sizeof(*tsgl)); + } } EXPORT_SYMBOL_GPL(af_alg_free_areq_sgls); @@@ -1062,13 -1061,13 +1062,13 @@@ EXPORT_SYMBOL_GPL(af_alg_async_cb) /** * af_alg_poll - poll system call handler */ - unsigned int af_alg_poll(struct file *file, struct socket *sock, + __poll_t af_alg_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct alg_sock *ask = alg_sk(sk); struct af_alg_ctx *ctx = ask->private; - unsigned int mask; + __poll_t mask; sock_poll_wait(file, sk_sleep(sk), wait); mask = 0; @@@ -1138,6 -1137,12 +1138,6 @@@ int af_alg_get_rsgl(struct sock *sk, st if (!af_alg_readable(sk)) break; - if (!ctx->used) { - err = af_alg_wait_for_data(sk, flags); - if (err) - return err; - } - seglen = min_t(size_t, (maxsize - len), msg_data_left(msg)); @@@ -1163,7 -1168,7 +1163,7 @@@ areq->last_rsgl = rsgl; len += err; - ctx->rcvused += err; + atomic_add(err, &ctx->rcvused); rsgl->sg_num_bytes = err; iov_iter_advance(&msg->msg_iter, err); } diff --combined crypto/algif_skcipher.c index c5c47b680152,9ad167d95103..f50907430c92 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@@ -72,12 -72,6 +72,12 @@@ static int _skcipher_recvmsg(struct soc int err = 0; size_t len = 0; + if (!ctx->used) { + err = af_alg_wait_for_data(sk, flags); + if (err) + return err; + } + /* Allocate cipher request for current operation. */ areq = af_alg_alloc_areq(sk, sizeof(struct af_alg_async_req) + crypto_skcipher_reqsize(tfm)); @@@ -125,10 -119,6 +125,10 @@@ /* AIO operation */ sock_hold(sk); areq->iocb = msg->msg_iocb; + + /* Remember output size that will be generated. */ + areq->outlen = len; + skcipher_request_set_callback(&areq->cra_u.skcipher_req, CRYPTO_TFM_REQ_MAY_SLEEP, af_alg_async_cb, areq); @@@ -137,8 -127,12 +137,8 @@@ crypto_skcipher_decrypt(&areq->cra_u.skcipher_req); /* AIO operation in progress */ - if (err == -EINPROGRESS || err == -EBUSY) { - /* Remember output size that will be generated. */ - areq->outlen = len; - + if (err == -EINPROGRESS || err == -EBUSY) return -EIOCBQUEUED; - } sock_put(sk); } else { @@@ -193,7 -187,6 +193,6 @@@ out return ret; } - static struct proto_ops algif_skcipher_ops = { .family = PF_ALG, @@@ -390,7 -383,7 +389,7 @@@ static int skcipher_accept_parent_nokey INIT_LIST_HEAD(&ctx->tsgl_list); ctx->len = len; ctx->used = 0; - ctx->rcvused = 0; + atomic_set(&ctx->rcvused, 0); ctx->more = 0; ctx->merge = 0; ctx->enc = 0; diff --combined drivers/android/binder.c index a7ecfde66b7b,fdc951083b07..cc89d0d2b965 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@@ -482,8 -482,7 +482,8 @@@ enum binder_deferred_state * @tsk task_struct for group_leader of process * (invariant after initialized) * @files files_struct for process - * (invariant after initialized) + * (protected by @files_lock) + * @files_lock mutex to protect @files * @deferred_work_node: element for binder_deferred_list * (protected by binder_deferred_lock) * @deferred_work: bitmap of deferred work to perform @@@ -531,7 -530,6 +531,7 @@@ struct binder_proc int pid; struct task_struct *tsk; struct files_struct *files; + struct mutex files_lock; struct hlist_node deferred_work_node; int deferred_work; bool is_dead; @@@ -879,26 -877,20 +879,26 @@@ static void binder_inc_node_tmpref_iloc static int task_get_unused_fd_flags(struct binder_proc *proc, int flags) { - struct files_struct *files = proc->files; unsigned long rlim_cur; unsigned long irqs; + int ret; - if (files == NULL) - return -ESRCH; - - if (!lock_task_sighand(proc->tsk, &irqs)) - return -EMFILE; - + mutex_lock(&proc->files_lock); + if (proc->files == NULL) { + ret = -ESRCH; + goto err; + } + if (!lock_task_sighand(proc->tsk, &irqs)) { + ret = -EMFILE; + goto err; + } rlim_cur = task_rlimit(proc->tsk, RLIMIT_NOFILE); unlock_task_sighand(proc->tsk, &irqs); - return __alloc_fd(files, 0, rlim_cur, flags); + ret = __alloc_fd(proc->files, 0, rlim_cur, flags); +err: + mutex_unlock(&proc->files_lock); + return ret; } /* @@@ -907,10 -899,8 +907,10 @@@ static void task_fd_install( struct binder_proc *proc, unsigned int fd, struct file *file) { + mutex_lock(&proc->files_lock); if (proc->files) __fd_install(proc->files, fd, file); + mutex_unlock(&proc->files_lock); } /* @@@ -920,11 -910,9 +920,11 @@@ static long task_close_fd(struct binder { int retval; - if (proc->files == NULL) - return -ESRCH; - + mutex_lock(&proc->files_lock); + if (proc->files == NULL) { + retval = -ESRCH; + goto err; + } retval = __close_fd(proc->files, fd); /* can't restart close syscall because file table entry was cleared */ if (unlikely(retval == -ERESTARTSYS || @@@ -932,8 -920,7 +932,8 @@@ retval == -ERESTARTNOHAND || retval == -ERESTART_RESTARTBLOCK)) retval = -EINTR; - +err: + mutex_unlock(&proc->files_lock); return retval; } @@@ -1961,26 -1948,6 +1961,26 @@@ static void binder_send_failed_reply(st } /** + * binder_cleanup_transaction() - cleans up undelivered transaction + * @t: transaction that needs to be cleaned up + * @reason: reason the transaction wasn't delivered + * @error_code: error to return to caller (if synchronous call) + */ +static void binder_cleanup_transaction(struct binder_transaction *t, + const char *reason, + uint32_t error_code) +{ + if (t->buffer->target_node && !(t->flags & TF_ONE_WAY)) { + binder_send_failed_reply(t, error_code); + } else { + binder_debug(BINDER_DEBUG_DEAD_TRANSACTION, + "undelivered transaction %d, %s\n", + t->debug_id, reason); + binder_free_transaction(t); + } +} + +/** * binder_validate_object() - checks for a valid metadata object in a buffer. * @buffer: binder_buffer that we're parsing. * @offset: offset in the buffer at which to validate an object. @@@ -4048,20 -4015,12 +4048,20 @@@ retry if (put_user(cmd, (uint32_t __user *)ptr)) { if (t_from) binder_thread_dec_tmpref(t_from); + + binder_cleanup_transaction(t, "put_user failed", + BR_FAILED_REPLY); + return -EFAULT; } ptr += sizeof(uint32_t); if (copy_to_user(ptr, &tr, sizeof(tr))) { if (t_from) binder_thread_dec_tmpref(t_from); + + binder_cleanup_transaction(t, "copy_to_user failed", + BR_FAILED_REPLY); + return -EFAULT; } ptr += sizeof(tr); @@@ -4131,9 -4090,15 +4131,9 @@@ static void binder_release_work(struct struct binder_transaction *t; t = container_of(w, struct binder_transaction, work); - if (t->buffer->target_node && - !(t->flags & TF_ONE_WAY)) { - binder_send_failed_reply(t, BR_DEAD_REPLY); - } else { - binder_debug(BINDER_DEBUG_DEAD_TRANSACTION, - "undelivered transaction %d\n", - t->debug_id); - binder_free_transaction(t); - } + + binder_cleanup_transaction(t, "process died.", + BR_DEAD_REPLY); } break; case BINDER_WORK_RETURN_ERROR: { struct binder_error *e = container_of( @@@ -4311,7 -4276,7 +4311,7 @@@ static int binder_thread_release(struc return active_transactions; } - static unsigned int binder_poll(struct file *filp, + static __poll_t binder_poll(struct file *filp, struct poll_table_struct *wait) { struct binder_proc *proc = filp->private_data; @@@ -4640,9 -4605,7 +4640,9 @@@ static int binder_mmap(struct file *fil ret = binder_alloc_mmap_handler(&proc->alloc, vma); if (ret) return ret; + mutex_lock(&proc->files_lock); proc->files = get_files_struct(current); + mutex_unlock(&proc->files_lock); return 0; err_bad_arg: @@@ -4666,7 -4629,6 +4666,7 @@@ static int binder_open(struct inode *no spin_lock_init(&proc->outer_lock); get_task_struct(current->group_leader); proc->tsk = current->group_leader; + mutex_init(&proc->files_lock); INIT_LIST_HEAD(&proc->todo); proc->default_priority = task_nice(current); binder_dev = container_of(filp->private_data, struct binder_device, @@@ -4919,11 -4881,9 +4919,11 @@@ static void binder_deferred_func(struc files = NULL; if (defer & BINDER_DEFERRED_PUT_FILES) { + mutex_lock(&proc->files_lock); files = proc->files; if (files) proc->files = NULL; + mutex_unlock(&proc->files_lock); } if (defer & BINDER_DEFERRED_FLUSH) diff --combined drivers/gpio/gpiolib.c index 44332b793718,46824c486e1e..a751fa4c722e --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@@ -73,8 -73,7 +73,8 @@@ LIST_HEAD(gpio_devices) static void gpiochip_free_hogs(struct gpio_chip *chip); static int gpiochip_add_irqchip(struct gpio_chip *gpiochip, - struct lock_class_key *key); + struct lock_class_key *lock_key, + struct lock_class_key *request_key); static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip); static int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gpiochip); static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gpiochip); @@@ -604,11 -603,11 +604,11 @@@ struct lineevent_state (GPIOEVENT_REQUEST_RISING_EDGE | \ GPIOEVENT_REQUEST_FALLING_EDGE) - static unsigned int lineevent_poll(struct file *filep, + static __poll_t lineevent_poll(struct file *filep, struct poll_table_struct *wait) { struct lineevent_state *le = filep->private_data; - unsigned int events = 0; + __poll_t events = 0; poll_wait(filep, &le->wait, wait); @@@ -1101,8 -1100,7 +1101,8 @@@ static void gpiochip_setup_devs(void } int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data, - struct lock_class_key *key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { unsigned long flags; int status = 0; @@@ -1248,7 -1246,7 +1248,7 @@@ if (status) goto err_remove_from_list; - status = gpiochip_add_irqchip(chip, key); + status = gpiochip_add_irqchip(chip, lock_key, request_key); if (status) goto err_remove_chip; @@@ -1634,7 -1632,7 +1634,7 @@@ int gpiochip_irq_map(struct irq_domain * This lock class tells lockdep that GPIO irqs are in a different * category than their parents, so it won't report false recursion. */ - irq_set_lockdep_class(irq, chip->irq.lock_key); + irq_set_lockdep_class(irq, chip->irq.lock_key, chip->irq.request_key); irq_set_chip_and_handler(irq, chip->irq.chip, chip->irq.handler); /* Chips that use nested thread handlers have them marked */ if (chip->irq.threaded) @@@ -1714,12 -1712,10 +1714,12 @@@ static int gpiochip_to_irq(struct gpio_ /** * gpiochip_add_irqchip() - adds an IRQ chip to a GPIO chip * @gpiochip: the GPIO chip to add the IRQ chip to - * @lock_key: lockdep class + * @lock_key: lockdep class for IRQ lock + * @request_key: lockdep class for IRQ request */ static int gpiochip_add_irqchip(struct gpio_chip *gpiochip, - struct lock_class_key *lock_key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { struct irq_chip *irqchip = gpiochip->irq.chip; const struct irq_domain_ops *ops; @@@ -1757,7 -1753,6 +1757,7 @@@ gpiochip->to_irq = gpiochip_to_irq; gpiochip->irq.default_type = type; gpiochip->irq.lock_key = lock_key; + gpiochip->irq.request_key = request_key; if (gpiochip->irq.domain_ops) ops = gpiochip->irq.domain_ops; @@@ -1855,8 -1850,7 +1855,8 @@@ static void gpiochip_irqchip_remove(str * @type: the default type for IRQs on this irqchip, pass IRQ_TYPE_NONE * to have the core avoid setting up any default type in the hardware. * @threaded: whether this irqchip uses a nested thread handler - * @lock_key: lockdep class + * @lock_key: lockdep class for IRQ lock + * @request_key: lockdep class for IRQ request * * This function closely associates a certain irqchip with a certain * gpiochip, providing an irq domain to translate the local IRQs to @@@ -1878,8 -1872,7 +1878,8 @@@ int gpiochip_irqchip_add_key(struct gpi irq_flow_handler_t handler, unsigned int type, bool threaded, - struct lock_class_key *lock_key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { struct device_node *of_node; @@@ -1920,7 -1913,6 +1920,7 @@@ gpiochip->irq.default_type = type; gpiochip->to_irq = gpiochip_to_irq; gpiochip->irq.lock_key = lock_key; + gpiochip->irq.request_key = request_key; gpiochip->irq.domain = irq_domain_add_simple(of_node, gpiochip->ngpio, first_irq, &gpiochip_domain_ops, gpiochip); @@@ -1948,8 -1940,7 +1948,8 @@@ EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_ #else /* CONFIG_GPIOLIB_IRQCHIP */ static inline int gpiochip_add_irqchip(struct gpio_chip *gpiochip, - struct lock_class_key *key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { return 0; } diff --combined drivers/md/md.c index 4e4dee0ec2de,e638d7199bd4..cb1476214f3f --- a/drivers/md/md.c +++ b/drivers/md/md.c @@@ -7605,9 -7605,7 +7605,9 @@@ static int status_resync(struct seq_fil if (test_bit(MD_RECOVERY_DONE, &mddev->recovery)) /* Still cleaning up */ resync = max_sectors; - } else + } else if (resync > max_sectors) + resync = max_sectors; + else resync -= atomic_read(&mddev->recovery_active); if (resync == 0) { @@@ -7871,10 -7869,10 +7871,10 @@@ static int md_seq_open(struct inode *in } static int md_unloading; - static unsigned int mdstat_poll(struct file *filp, poll_table *wait) + static __poll_t mdstat_poll(struct file *filp, poll_table *wait) { struct seq_file *seq = filp->private_data; - int mask; + __poll_t mask; if (md_unloading) return POLLIN|POLLRDNORM|POLLERR|POLLPRI; diff --combined drivers/media/dvb-core/dvb_ca_en50221.c index d48b61eb01f4,dbb527a2befc..3f6c8bd8f869 --- a/drivers/media/dvb-core/dvb_ca_en50221.c +++ b/drivers/media/dvb-core/dvb_ca_en50221.c @@@ -206,7 -206,7 +206,7 @@@ static int dvb_ca_en50221_write_data(st * @hlen: Number of bytes in haystack. * @needle: Buffer to find. * @nlen: Number of bytes in needle. - * @return Pointer into haystack needle was found at, or NULL if not found. + * return: Pointer into haystack needle was found at, or NULL if not found. */ static char *findstr(char *haystack, int hlen, char *needle, int nlen) { @@@ -226,7 -226,7 +226,7 @@@ /* ************************************************************************** */ /* EN50221 physical interface functions */ -/** +/* * dvb_ca_en50221_check_camstatus - Check CAM status. */ static int dvb_ca_en50221_check_camstatus(struct dvb_ca_private *ca, int slot) @@@ -275,9 -275,9 +275,9 @@@ * @ca: CA instance. * @slot: Slot on interface. * @waitfor: Flags to wait for. - * @timeout_ms: Timeout in milliseconds. + * @timeout_hz: Timeout in milliseconds. * - * @return 0 on success, nonzero on error. + * return: 0 on success, nonzero on error. */ static int dvb_ca_en50221_wait_if_status(struct dvb_ca_private *ca, int slot, u8 waitfor, int timeout_hz) @@@ -325,7 -325,7 +325,7 @@@ * @ca: CA instance. * @slot: Slot id. * - * @return 0 on success, nonzero on failure. + * return: 0 on success, nonzero on failure. */ static int dvb_ca_en50221_link_init(struct dvb_ca_private *ca, int slot) { @@@ -397,11 -397,11 +397,11 @@@ * @ca: CA instance. * @slot: Slot id. * @address: Address to read from. Updated. - * @tupleType: Tuple id byte. Updated. - * @tupleLength: Tuple length. Updated. + * @tuple_type: Tuple id byte. Updated. + * @tuple_length: Tuple length. Updated. * @tuple: Dest buffer for tuple (must be 256 bytes). Updated. * - * @return 0 on success, nonzero on error. + * return: 0 on success, nonzero on error. */ static int dvb_ca_en50221_read_tuple(struct dvb_ca_private *ca, int slot, int *address, int *tuple_type, @@@ -455,7 -455,7 +455,7 @@@ * @ca: CA instance. * @slot: Slot id. * - * @return 0 on success, <0 on failure. + * return: 0 on success, <0 on failure. */ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private *ca, int slot) { @@@ -632,11 -632,10 +632,11 @@@ static int dvb_ca_en50221_set_configopt * @ca: CA instance. * @slot: Slot to read from. * @ebuf: If non-NULL, the data will be written to this buffer. If NULL, - * the data will be added into the buffering system as a normal fragment. + * the data will be added into the buffering system as a normal + * fragment. * @ecount: Size of ebuf. Ignored if ebuf is NULL. * - * @return Number of bytes read, or < 0 on error + * return: Number of bytes read, or < 0 on error */ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot, u8 *ebuf, int ecount) @@@ -785,11 -784,11 +785,11 @@@ exit * * @ca: CA instance. * @slot: Slot to write to. - * @ebuf: The data in this buffer is treated as a complete link-level packet to - * be written. - * @count: Size of ebuf. + * @buf: The data in this buffer is treated as a complete link-level packet to + * be written. + * @bytes_write: Size of ebuf. * - * @return Number of bytes written, or < 0 on error. + * return: Number of bytes written, or < 0 on error. */ static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot, u8 *buf, int bytes_write) @@@ -934,7 -933,7 +934,7 @@@ static int dvb_ca_en50221_slot_shutdown /** * dvb_ca_en50221_camchange_irq - A CAMCHANGE IRQ has occurred. * - * @ca: CA instance. + * @pubca: CA instance. * @slot: Slot concerned. * @change_type: One of the DVB_CA_CAMCHANGE_* values. */ @@@ -964,7 -963,7 +964,7 @@@ EXPORT_SYMBOL(dvb_ca_en50221_camchange_ /** * dvb_ca_en50221_camready_irq - A CAMREADY IRQ has occurred. * - * @ca: CA instance. + * @pubca: CA instance. * @slot: Slot concerned. */ void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221 *pubca, int slot) @@@ -984,7 -983,7 +984,7 @@@ EXPORT_SYMBOL(dvb_ca_en50221_camready_i /** * dvb_ca_en50221_frda_irq - An FR or DA IRQ has occurred. * - * @ca: CA instance. + * @pubca: CA instance. * @slot: Slot concerned. */ void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221 *pubca, int slot) @@@ -1092,7 -1091,7 +1092,7 @@@ static void dvb_ca_en50221_thread_updat * * @ca: CA instance. * @slot: Slot to process. - * @return: 0 .. no change + * return:: 0 .. no change * 1 .. CAM state changed */ @@@ -1297,7 -1296,7 +1297,7 @@@ static void dvb_ca_en50221_thread_state mutex_unlock(&sl->slot_lock); } -/** +/* * Kernel thread which monitors CA slots for CAM changes, and performs data * transfers. */ @@@ -1337,11 -1336,12 +1337,11 @@@ static int dvb_ca_en50221_thread(void * * Real ioctl implementation. * NOTE: CA_SEND_MSG/CA_GET_MSG ioctls have userspace buffers passed to them. * - * @inode: Inode concerned. * @file: File concerned. * @cmd: IOCTL command. - * @arg: Associated argument. + * @parg: Associated argument. * - * @return 0 on success, <0 on error. + * return: 0 on success, <0 on error. */ static int dvb_ca_en50221_io_do_ioctl(struct file *file, unsigned int cmd, void *parg) @@@ -1420,11 -1420,12 +1420,11 @@@ out_unlock /** * Wrapper for ioctl implementation. * - * @inode: Inode concerned. * @file: File concerned. * @cmd: IOCTL command. * @arg: Associated argument. * - * @return 0 on success, <0 on error. + * return: 0 on success, <0 on error. */ static long dvb_ca_en50221_io_ioctl(struct file *file, unsigned int cmd, unsigned long arg) @@@ -1440,7 -1441,7 +1440,7 @@@ * @count: Size of source buffer. * @ppos: Position in file (ignored). * - * @return Number of bytes read, or <0 on error. + * return: Number of bytes read, or <0 on error. */ static ssize_t dvb_ca_en50221_io_write(struct file *file, const char __user *buf, size_t count, @@@ -1535,7 -1536,7 +1535,7 @@@ exit return status; } -/** +/* * Condition for waking up in dvb_ca_en50221_io_read_condition */ static int dvb_ca_en50221_io_read_condition(struct dvb_ca_private *ca, @@@ -1592,7 -1593,7 +1592,7 @@@ nextslot * @count: Size of destination buffer. * @ppos: Position in file (ignored). * - * @return Number of bytes read, or <0 on error. + * return: Number of bytes read, or <0 on error. */ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) @@@ -1701,7 -1702,7 +1701,7 @@@ exit * @inode: Inode concerned. * @file: File concerned. * - * @return 0 on success, <0 on failure. + * return: 0 on success, <0 on failure. */ static int dvb_ca_en50221_io_open(struct inode *inode, struct file *file) { @@@ -1751,7 -1752,7 +1751,7 @@@ * @inode: Inode concerned. * @file: File concerned. * - * @return 0 on success, <0 on failure. + * return: 0 on success, <0 on failure. */ static int dvb_ca_en50221_io_release(struct inode *inode, struct file *file) { @@@ -1780,13 -1781,13 +1780,13 @@@ * @file: File concerned. * @wait: poll wait table. * - * @return Standard poll mask. + * return: Standard poll mask. */ - static unsigned int dvb_ca_en50221_io_poll(struct file *file, poll_table *wait) + static __poll_t dvb_ca_en50221_io_poll(struct file *file, poll_table *wait) { struct dvb_device *dvbdev = file->private_data; struct dvb_ca_private *ca = dvbdev->priv; - unsigned int mask = 0; + __poll_t mask = 0; int slot; int result = 0; @@@ -1837,11 -1838,11 +1837,11 @@@ static const struct dvb_device dvbdev_c * Initialise a new DVB CA EN50221 interface device. * * @dvb_adapter: DVB adapter to attach the new CA device to. - * @ca: The dvb_ca instance. + * @pubca: The dvb_ca instance. * @flags: Flags describing the CA device (DVB_CA_FLAG_*). * @slot_count: Number of slots supported. * - * @return 0 on success, nonzero on failure + * return: 0 on success, nonzero on failure */ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, struct dvb_ca_en50221 *pubca, int flags, int slot_count) @@@ -1928,7 -1929,8 +1928,7 @@@ EXPORT_SYMBOL(dvb_ca_en50221_init) /** * Release a DVB CA EN50221 interface device. * - * @ca_dev: The dvb_device_t instance for the CA device. - * @ca: The associated dvb_ca instance. + * @pubca: The associated dvb_ca instance. */ void dvb_ca_en50221_release(struct dvb_ca_en50221 *pubca) { diff --combined drivers/media/dvb-core/dvb_frontend.c index 2afaa8226342,92e2433415f0..48e16fd003a7 --- a/drivers/media/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb-core/dvb_frontend.c @@@ -369,14 -369,11 +369,14 @@@ static void dvb_frontend_swzigzag_updat } /** - * Performs automatic twiddling of frontend parameters. + * dvb_frontend_swzigzag_autotune - Performs automatic twiddling of frontend + * parameters. * - * @param fe The frontend concerned. - * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT - * @returns Number of complete iterations that have been performed. + * @fe: The frontend concerned. + * @check_wrapped: Checks if an iteration has completed. + * DO NOT SET ON THE FIRST ATTEMPT. + * + * return: Number of complete iterations that have been performed. */ static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) { @@@ -1256,7 -1253,7 +1256,7 @@@ dtv_property_legacy_params_sync(struct * dtv_get_frontend - calls a callback for retrieving DTV parameters * @fe: struct dvb_frontend pointer * @c: struct dtv_frontend_properties pointer (DVBv5 cache) - * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) + * @p_out: struct dvb_frontend_parameters pointer (DVBv3 FE struct) * * This routine calls either the DVBv3 or DVBv5 get_frontend call. * If c is not null, it will update the DVBv5 cache struct pointed by it. @@@ -2470,7 -2467,7 +2470,7 @@@ static int dvb_frontend_handle_ioctl(st } - static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) + static __poll_t dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) { struct dvb_device *dvbdev = file->private_data; struct dvb_frontend *fe = dvbdev->priv; diff --combined drivers/media/platform/sh_veu.c index dedc1b024f6f,15cf51f5d280..976ea0bb5b6c --- a/drivers/media/platform/sh_veu.c +++ b/drivers/media/platform/sh_veu.c @@@ -267,7 -267,7 +267,7 @@@ static void sh_veu_process(struct sh_ve sh_veu_reg_write(veu, VEU_EIER, 1); /* enable interrupt in VEU */ } -/** +/* * sh_veu_device_run() - prepares and starts the device * * This will be called by the framework when it decides to schedule a particular @@@ -1016,7 -1016,7 +1016,7 @@@ static int sh_veu_release(struct file * return 0; } - static unsigned int sh_veu_poll(struct file *file, + static __poll_t sh_veu_poll(struct file *file, struct poll_table_struct *wait) { struct sh_veu_file *veu_file = file->private_data; diff --combined drivers/media/radio/radio-si476x.c index 540ac887a63c,248bd0ffc978..49293dd707b9 --- a/drivers/media/radio/radio-si476x.c +++ b/drivers/media/radio/radio-si476x.c @@@ -158,7 -158,7 +158,7 @@@ enum si476x_ctrl_idx }; static struct v4l2_ctrl_config si476x_ctrls[] = { - /** + /* * SI476X during its station seeking(or tuning) process uses several * parameters to detrmine if "the station" is valid: * @@@ -197,7 -197,7 +197,7 @@@ .step = 2, }, - /** + /* * #V4L2_CID_SI476X_HARMONICS_COUNT -- number of harmonics * built-in power-line noise supression filter is to reject * during AM-mode operation. @@@ -213,7 -213,7 +213,7 @@@ .step = 1, }, - /** + /* * #V4L2_CID_SI476X_DIVERSITY_MODE -- configuration which * two tuners working in diversity mode are to work in. * @@@ -237,7 -237,7 +237,7 @@@ .max = ARRAY_SIZE(phase_diversity_modes) - 1, }, - /** + /* * #V4L2_CID_SI476X_INTERCHIP_LINK -- inter-chip link in * diversity mode indicator. Allows user to determine if two * chips working in diversity mode have established a link @@@ -296,15 -296,11 +296,15 @@@ struct si476x_radio_ops /** * struct si476x_radio - radio device * - * @core: Pointer to underlying core device + * @v4l2dev: Pointer to V4L2 device created by V4L2 subsystem * @videodev: Pointer to video device created by V4L2 subsystem + * @ctrl_handler: V4L2 controls handler + * @core: Pointer to underlying core device * @ops: Vtable of functions. See struct si476x_radio_ops for details - * @kref: Reference counter - * @core_lock: An r/w semaphore to brebvent the deletion of underlying + * @debugfs: pointer to &strucd dentry for debugfs + * @audmode: audio mode, as defined for the rxsubchans field + * at videodev2.h + * * core structure is the radio device is being used */ struct si476x_radio { @@@ -1153,12 -1149,12 +1153,12 @@@ static ssize_t si476x_radio_fops_read(s return rval; } - static unsigned int si476x_radio_fops_poll(struct file *file, + static __poll_t si476x_radio_fops_poll(struct file *file, struct poll_table_struct *pts) { struct si476x_radio *radio = video_drvdata(file); - unsigned long req_events = poll_requested_events(pts); - unsigned int err = v4l2_ctrl_poll(file, pts); + __poll_t req_events = poll_requested_events(pts); + __poll_t err = v4l2_ctrl_poll(file, pts); if (req_events & (POLLIN | POLLRDNORM)) { if (atomic_read(&radio->core->is_alive)) diff --combined drivers/media/radio/radio-wl1273.c index 3cbdc085c65d,4cd4241fc7be..f92b0f9241a9 --- a/drivers/media/radio/radio-wl1273.c +++ b/drivers/media/radio/radio-wl1273.c @@@ -1089,7 -1089,7 +1089,7 @@@ out return r; } - static unsigned int wl1273_fm_fops_poll(struct file *file, + static __poll_t wl1273_fm_fops_poll(struct file *file, struct poll_table_struct *pts) { struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); @@@ -1330,7 -1330,7 +1330,7 @@@ static int wl1273_fm_vidioc_s_input(str /** * wl1273_fm_set_tx_power() - Set the transmission power value. - * @core: A pointer to the device struct. + * @radio: A pointer to the device struct. * @power: The new power value. */ static int wl1273_fm_set_tx_power(struct wl1273_device *radio, u16 power) diff --combined drivers/media/v4l2-core/v4l2-mem2mem.c index bc580fbe18fa,a879d11866bd..186156f8952a --- a/drivers/media/v4l2-core/v4l2-mem2mem.c +++ b/drivers/media/v4l2-core/v4l2-mem2mem.c @@@ -183,7 -183,6 +183,7 @@@ EXPORT_SYMBOL(v4l2_m2m_get_curr_priv) /** * v4l2_m2m_try_run() - select next job to perform and run it if possible + * @m2m_dev: per-device context * * Get next transaction (if present) from the waiting jobs list and run it. */ @@@ -282,7 -281,6 +282,7 @@@ EXPORT_SYMBOL_GPL(v4l2_m2m_try_schedule /** * v4l2_m2m_cancel_job() - cancel pending jobs for the context + * @m2m_ctx: m2m context with jobs to be canceled * * In case of streamoff or release called on any context, * 1] If the context is currently running, then abort job will be called @@@ -500,14 -498,14 +500,14 @@@ int v4l2_m2m_streamoff(struct file *fil } EXPORT_SYMBOL_GPL(v4l2_m2m_streamoff); - unsigned int v4l2_m2m_poll(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, + __poll_t v4l2_m2m_poll(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, struct poll_table_struct *wait) { struct video_device *vfd = video_devdata(file); - unsigned long req_events = poll_requested_events(wait); + __poll_t req_events = poll_requested_events(wait); struct vb2_queue *src_q, *dst_q; struct vb2_buffer *src_vb = NULL, *dst_vb = NULL; - unsigned int rc = 0; + __poll_t rc = 0; unsigned long flags; if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { @@@ -794,11 -792,11 +794,11 @@@ int v4l2_m2m_fop_mmap(struct file *file } EXPORT_SYMBOL_GPL(v4l2_m2m_fop_mmap); - unsigned int v4l2_m2m_fop_poll(struct file *file, poll_table *wait) + __poll_t v4l2_m2m_fop_poll(struct file *file, poll_table *wait) { struct v4l2_fh *fh = file->private_data; struct v4l2_m2m_ctx *m2m_ctx = fh->m2m_ctx; - unsigned int ret; + __poll_t ret; if (m2m_ctx->q_lock) mutex_lock(m2m_ctx->q_lock); diff --combined drivers/media/v4l2-core/videobuf-core.c index e87fb13b22dc,0c5b12b8bb52..9a89d3ae170f --- a/drivers/media/v4l2-core/videobuf-core.c +++ b/drivers/media/v4l2-core/videobuf-core.c @@@ -222,7 -222,7 +222,7 @@@ int videobuf_queue_is_busy(struct video } EXPORT_SYMBOL_GPL(videobuf_queue_is_busy); -/** +/* * __videobuf_free() - free all the buffers and their control structures * * This function can only be called if streaming/reading is off, i.e. no buffers @@@ -1118,13 -1118,13 +1118,13 @@@ done } EXPORT_SYMBOL_GPL(videobuf_read_stream); - unsigned int videobuf_poll_stream(struct file *file, + __poll_t videobuf_poll_stream(struct file *file, struct videobuf_queue *q, poll_table *wait) { - unsigned long req_events = poll_requested_events(wait); + __poll_t req_events = poll_requested_events(wait); struct videobuf_buffer *buf = NULL; - unsigned int rc = 0; + __poll_t rc = 0; videobuf_queue_lock(q); if (q->streaming) { diff --combined drivers/media/v4l2-core/videobuf2-core.c index a8589d96ef72,dc1f683c3b71..0d9f772d6d03 --- a/drivers/media/v4l2-core/videobuf2-core.c +++ b/drivers/media/v4l2-core/videobuf2-core.c @@@ -188,7 -188,7 +188,7 @@@ module_param(debug, int, 0644) static void __vb2_queue_cancel(struct vb2_queue *q); static void __enqueue_in_driver(struct vb2_buffer *vb); -/** +/* * __vb2_buf_mem_alloc() - allocate video memory for the given buffer */ static int __vb2_buf_mem_alloc(struct vb2_buffer *vb) @@@ -229,7 -229,7 +229,7 @@@ free return ret; } -/** +/* * __vb2_buf_mem_free() - free memory of the given buffer */ static void __vb2_buf_mem_free(struct vb2_buffer *vb) @@@ -243,7 -243,7 +243,7 @@@ } } -/** +/* * __vb2_buf_userptr_put() - release userspace memory associated with * a USERPTR buffer */ @@@ -258,7 -258,7 +258,7 @@@ static void __vb2_buf_userptr_put(struc } } -/** +/* * __vb2_plane_dmabuf_put() - release memory associated with * a DMABUF shared plane */ @@@ -277,7 -277,7 +277,7 @@@ static void __vb2_plane_dmabuf_put(stru p->dbuf_mapped = 0; } -/** +/* * __vb2_buf_dmabuf_put() - release memory associated with * a DMABUF shared buffer */ @@@ -289,7 -289,7 +289,7 @@@ static void __vb2_buf_dmabuf_put(struc __vb2_plane_dmabuf_put(vb, &vb->planes[plane]); } -/** +/* * __setup_offsets() - setup unique offsets ("cookies") for every plane in * the buffer. */ @@@ -317,7 -317,7 +317,7 @@@ static void __setup_offsets(struct vb2_ } } -/** +/* * __vb2_queue_alloc() - allocate videobuf buffer structures and (for MMAP type) * video buffer memory for all buffers/planes on the queue and initializes the * queue @@@ -386,7 -386,7 +386,7 @@@ static int __vb2_queue_alloc(struct vb2 return buffer; } -/** +/* * __vb2_free_mem() - release all video buffer memory for a given queue */ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers) @@@ -410,7 -410,7 +410,7 @@@ } } -/** +/* * __vb2_queue_free() - free buffers at the end of the queue - video memory and * related information, if no buffers are left return the queue to an * uninitialized state. Might be called even if the queue has already been freed. @@@ -544,7 -544,7 +544,7 @@@ bool vb2_buffer_in_use(struct vb2_queu } EXPORT_SYMBOL(vb2_buffer_in_use); -/** +/* * __buffers_in_use() - return true if any buffers on the queue are in use and * the queue cannot be freed (by the means of REQBUFS(0)) call */ @@@ -564,7 -564,7 +564,7 @@@ void vb2_core_querybuf(struct vb2_queu } EXPORT_SYMBOL_GPL(vb2_core_querybuf); -/** +/* * __verify_userptr_ops() - verify that all memory operations required for * USERPTR queue type have been provided */ @@@ -577,7 -577,7 +577,7 @@@ static int __verify_userptr_ops(struct return 0; } -/** +/* * __verify_mmap_ops() - verify that all memory operations required for * MMAP queue type have been provided */ @@@ -590,7 -590,7 +590,7 @@@ static int __verify_mmap_ops(struct vb2 return 0; } -/** +/* * __verify_dmabuf_ops() - verify that all memory operations required for * DMABUF queue type have been provided */ @@@ -953,7 -953,7 +953,7 @@@ void vb2_discard_done(struct vb2_queue } EXPORT_SYMBOL_GPL(vb2_discard_done); -/** +/* * __prepare_mmap() - prepare an MMAP buffer */ static int __prepare_mmap(struct vb2_buffer *vb, const void *pb) @@@ -966,7 -966,7 +966,7 @@@ return ret ? ret : call_vb_qop(vb, buf_prepare, vb); } -/** +/* * __prepare_userptr() - prepare a USERPTR buffer */ static int __prepare_userptr(struct vb2_buffer *vb, const void *pb) @@@ -1082,7 -1082,7 +1082,7 @@@ err return ret; } -/** +/* * __prepare_dmabuf() - prepare a DMABUF buffer */ static int __prepare_dmabuf(struct vb2_buffer *vb, const void *pb) @@@ -1215,7 -1215,7 +1215,7 @@@ err return ret; } -/** +/* * __enqueue_in_driver() - enqueue a vb2_buffer in driver for processing */ static void __enqueue_in_driver(struct vb2_buffer *vb) @@@ -1298,7 -1298,7 +1298,7 @@@ int vb2_core_prepare_buf(struct vb2_que } EXPORT_SYMBOL_GPL(vb2_core_prepare_buf); -/** +/* * vb2_start_streaming() - Attempt to start streaming. * @q: videobuf2 queue * @@@ -1427,7 -1427,7 +1427,7 @@@ int vb2_core_qbuf(struct vb2_queue *q, } EXPORT_SYMBOL_GPL(vb2_core_qbuf); -/** +/* * __vb2_wait_for_done_vb() - wait for a buffer to become available * for dequeuing * @@@ -1502,7 -1502,7 +1502,7 @@@ static int __vb2_wait_for_done_vb(struc return 0; } -/** +/* * __vb2_get_done_vb() - get a buffer ready for dequeuing * * Will sleep if required for nonblocking == false. @@@ -1553,7 -1553,7 +1553,7 @@@ int vb2_wait_for_all_buffers(struct vb2 } EXPORT_SYMBOL_GPL(vb2_wait_for_all_buffers); -/** +/* * __vb2_dqbuf() - bring back the buffer to the DEQUEUED state */ static void __vb2_dqbuf(struct vb2_buffer *vb) @@@ -1625,7 -1625,7 +1625,7 @@@ int vb2_core_dqbuf(struct vb2_queue *q } EXPORT_SYMBOL_GPL(vb2_core_dqbuf); -/** +/* * __vb2_queue_cancel() - cancel and stop (pause) streaming * * Removes all queued buffers from driver's queue and all buffers queued by @@@ -1773,7 -1773,7 +1773,7 @@@ int vb2_core_streamoff(struct vb2_queu } EXPORT_SYMBOL_GPL(vb2_core_streamoff); -/** +/* * __find_plane_by_offset() - find plane associated with the given offset off */ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off, @@@ -2018,10 -2018,10 +2018,10 @@@ void vb2_core_queue_release(struct vb2_ } EXPORT_SYMBOL_GPL(vb2_core_queue_release); - unsigned int vb2_core_poll(struct vb2_queue *q, struct file *file, + __poll_t vb2_core_poll(struct vb2_queue *q, struct file *file, poll_table *wait) { - unsigned long req_events = poll_requested_events(wait); + __poll_t req_events = poll_requested_events(wait); struct vb2_buffer *vb = NULL; unsigned long flags; @@@ -2104,7 -2104,7 +2104,7 @@@ } EXPORT_SYMBOL_GPL(vb2_core_poll); -/** +/* * struct vb2_fileio_buf - buffer context used by file io emulator * * vb2 provides a compatibility layer and emulator of file io (read and @@@ -2118,7 -2118,7 +2118,7 @@@ struct vb2_fileio_buf unsigned int queued:1; }; -/** +/* * struct vb2_fileio_data - queue context used by file io emulator * * @cur_index: the index of the buffer currently being read from or @@@ -2155,7 -2155,7 +2155,7 @@@ struct vb2_fileio_data unsigned write_immediately:1; }; -/** +/* * __vb2_init_fileio() - initialize file io emulator * @q: videobuf2 queue * @read: mode selector (1 means read, 0 means write) @@@ -2274,7 -2274,7 +2274,7 @@@ err_kfree return ret; } -/** +/* * __vb2_cleanup_fileio() - free resourced used by file io emulator * @q: videobuf2 queue */ @@@ -2293,7 -2293,7 +2293,7 @@@ static int __vb2_cleanup_fileio(struct return 0; } -/** +/* * __vb2_perform_fileio() - perform a single file io (read or write) operation * @q: videobuf2 queue * @data: pointed to target userspace buffer diff --combined drivers/media/v4l2-core/videobuf2-v4l2.c index 4075314a6989,d2b3a74d14fd..a49f7eb98c2e --- a/drivers/media/v4l2-core/videobuf2-v4l2.c +++ b/drivers/media/v4l2-core/videobuf2-v4l2.c @@@ -49,7 -49,7 +49,7 @@@ module_param(debug, int, 0644) #define V4L2_BUFFER_OUT_FLAGS (V4L2_BUF_FLAG_PFRAME | V4L2_BUF_FLAG_BFRAME | \ V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_TIMECODE) -/** +/* * __verify_planes_array() - verify that the planes array passed in struct * v4l2_buffer from userspace can be safely used */ @@@ -78,7 -78,7 +78,7 @@@ static int __verify_planes_array_core(s return __verify_planes_array(vb, pb); } -/** +/* * __verify_length() - Verify that the bytesused value for each plane fits in * the plane length and that the data offset doesn't exceed the bytesused value. */ @@@ -181,7 -181,7 +181,7 @@@ static int vb2_queue_or_prepare_buf(str return __verify_planes_array(q->bufs[b->index], b); } -/** +/* * __fill_v4l2_buffer() - fill in a struct v4l2_buffer with information to be * returned to userspace */ @@@ -286,7 -286,7 +286,7 @@@ static void __fill_v4l2_buffer(struct v q->last_buffer_dequeued = true; } -/** +/* * __fill_vb2_buffer() - fill a vb2_buffer with information provided in a * v4l2_buffer by the userspace. It also verifies that struct * v4l2_buffer has a valid number of planes. @@@ -446,7 -446,7 +446,7 @@@ static const struct vb2_buf_ops v4l2_bu .copy_timestamp = __copy_timestamp, }; -/** +/* * vb2_querybuf() - query video buffer information * @q: videobuf queue * @b: buffer struct passed from userspace to vidioc_querybuf handler @@@ -671,11 -671,11 +671,11 @@@ void vb2_queue_release(struct vb2_queu } EXPORT_SYMBOL_GPL(vb2_queue_release); - unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait) + __poll_t vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait) { struct video_device *vfd = video_devdata(file); - unsigned long req_events = poll_requested_events(wait); - unsigned int res = 0; + __poll_t req_events = poll_requested_events(wait); + __poll_t res = 0; if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { struct v4l2_fh *fh = file->private_data; @@@ -904,12 -904,12 +904,12 @@@ exit } EXPORT_SYMBOL_GPL(vb2_fop_read); - unsigned int vb2_fop_poll(struct file *file, poll_table *wait) + __poll_t vb2_fop_poll(struct file *file, poll_table *wait) { struct video_device *vdev = video_devdata(file); struct vb2_queue *q = vdev->queue; struct mutex *lock = q->lock ? q->lock : vdev->lock; - unsigned res; + __poll_t res; void *fileio; /* diff --combined drivers/net/ethernet/broadcom/tg3.c index 8995cfefbfcf,5bd4a65a45dd..86ff8b49ee57 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@@ -4,13 -4,11 +4,13 @@@ * Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem(a)redhat.com) * Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik(a)pobox.com) * Copyright (C) 2004 Sun Microsystems Inc. - * Copyright (C) 2005-2014 Broadcom Corporation. + * Copyright (C) 2005-2016 Broadcom Corporation. + * Copyright (C) 2016-2017 Broadcom Limited. * * Firmware is: * Derived from proprietary unpublished source code, - * Copyright (C) 2000-2003 Broadcom Corporation. + * Copyright (C) 2000-2016 Broadcom Corporation. + * Copyright (C) 2016-2017 Broadcom Ltd. * * Permission is hereby granted for the distribution of this firmware * data in hexadecimal or equivalent format, provided this copyright @@@ -3744,7 -3742,7 +3744,7 @@@ static int tg3_load_firmware_cpu(struc } do { - u32 *fw_data = (u32 *)(fw_hdr + 1); + __be32 *fw_data = (__be32 *)(fw_hdr + 1); for (i = 0; i < tg3_fw_data_len(tp, fw_hdr); i++) write_op(tp, cpu_scratch_base + (be32_to_cpu(fw_hdr->base_addr) & 0xffff) + @@@ -10054,16 -10052,6 +10054,16 @@@ static int tg3_reset_hw(struct tg3 *tp tw32(GRC_MODE, tp->grc_mode | val); + /* On one of the AMD platform, MRRS is restricted to 4000 because of + * south bridge limitation. As a workaround, Driver is setting MRRS + * to 2048 instead of default 4096. + */ + if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL && + tp->pdev->subsystem_device == TG3PCI_SUBDEVICE_ID_DELL_5762) { + val = tr32(TG3PCI_DEV_STATUS_CTRL) & ~MAX_READ_REQ_MASK; + tw32(TG3PCI_DEV_STATUS_CTRL, val | MAX_READ_REQ_SIZE_2048); + } + /* Setup the timer prescalar register. Clock is always 66Mhz. */ val = tr32(GRC_MISC_CFG); val &= ~0xff; @@@ -14237,10 -14225,7 +14237,10 @@@ static int tg3_change_mtu(struct net_de /* Reset PHY, otherwise the read DMA engine will be in a mode that * breaks all requests to 256 bytes. */ - if (tg3_asic_rev(tp) == ASIC_REV_57766) + if (tg3_asic_rev(tp) == ASIC_REV_57766 || + tg3_asic_rev(tp) == ASIC_REV_5717 || + tg3_asic_rev(tp) == ASIC_REV_5719 || + tg3_asic_rev(tp) == ASIC_REV_5720) reset_phy = true; err = tg3_restart_hw(tp, reset_phy); diff --combined drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c index 7e089bf906b4,5532a14de82b..5bbcaf8298f6 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c @@@ -241,12 -241,13 +241,13 @@@ static int dwmac4_rx_check_timestamp(vo u32 own, ctxt; int ret = 1; - own = p->des3 & RDES3_OWN; - ctxt = ((p->des3 & RDES3_CONTEXT_DESCRIPTOR) + own = le32_to_cpu(p->des3) & RDES3_OWN; + ctxt = ((le32_to_cpu(p->des3) & RDES3_CONTEXT_DESCRIPTOR) >> RDES3_CONTEXT_DESCRIPTOR_SHIFT); if (likely(!own && ctxt)) { - if ((p->des0 == 0xffffffff) && (p->des1 == 0xffffffff)) + if ((p->des0 == cpu_to_le32(0xffffffff)) && + (p->des1 == cpu_to_le32(0xffffffff))) /* Corrupted value */ ret = -EINVAL; else @@@ -258,20 -259,19 +259,20 @@@ return ret; } -static int dwmac4_wrback_get_rx_timestamp_status(void *desc, u32 ats) +static int dwmac4_wrback_get_rx_timestamp_status(void *desc, void *next_desc, + u32 ats) { struct dma_desc *p = (struct dma_desc *)desc; int ret = -EINVAL; /* Get the status from normal w/b descriptor */ - if (likely(p->des3 & TDES3_RS1V)) { + if (likely(p->des3 & cpu_to_le32(TDES3_RS1V))) { if (likely(le32_to_cpu(p->des1) & RDES1_TIMESTAMP_AVAILABLE)) { int i = 0; /* Check if timestamp is OK from context descriptor */ do { - ret = dwmac4_rx_check_timestamp(desc); + ret = dwmac4_rx_check_timestamp(next_desc); if (ret < 0) goto exit; i++; diff --combined drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index c0af0bc4e714,0a7ae94b5e00..323464576fc0 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@@ -364,15 -364,9 +364,15 @@@ static void stmmac_eee_ctrl_timer(struc bool stmmac_eee_init(struct stmmac_priv *priv) { struct net_device *ndev = priv->dev; + int interface = priv->plat->interface; unsigned long flags; bool ret = false; + if ((interface != PHY_INTERFACE_MODE_MII) && + (interface != PHY_INTERFACE_MODE_GMII) && + !phy_interface_mode_is_rgmii(interface)) + goto out; + /* Using PCS we cannot dial with the phy registers at this stage * so we do not support extra feature like EEE. */ @@@ -488,7 -482,7 +488,7 @@@ static void stmmac_get_rx_hwtstamp(stru desc = np; /* Check if timestamp is available */ - if (priv->hw->desc->get_rx_timestamp_status(desc, priv->adv_ts)) { + if (priv->hw->desc->get_rx_timestamp_status(p, np, priv->adv_ts)) { ns = priv->hw->desc->get_timestamp(desc, priv->adv_ts); netdev_dbg(priv->dev, "get valid RX hw timestamp %llu\n", ns); shhwtstamp = skb_hwtstamps(skb); @@@ -2539,7 -2533,7 +2539,7 @@@ static int stmmac_hw_setup(struct net_d } if (priv->hw->pcs && priv->hw->mac->pcs_ctrl_ane) - priv->hw->mac->pcs_ctrl_ane(priv->hw, 1, priv->hw->ps, 0); + priv->hw->mac->pcs_ctrl_ane(priv->ioaddr, 1, priv->hw->ps, 0); /* set TX and RX rings length */ stmmac_set_rings_length(priv); @@@ -2594,7 -2588,6 +2594,7 @@@ static int stmmac_open(struct net_devic priv->dma_buf_sz = STMMAC_ALIGN(buf_sz); priv->rx_copybreak = STMMAC_RX_COPYBREAK; + priv->mss = 0; ret = alloc_dma_desc_resources(priv); if (ret < 0) { diff --combined drivers/net/tap.c index 0a886fda0129,c4e91c73568e..f39c6f876e67 --- a/drivers/net/tap.c +++ b/drivers/net/tap.c @@@ -572,10 -572,10 +572,10 @@@ static int tap_release(struct inode *in return 0; } - static unsigned int tap_poll(struct file *file, poll_table *wait) + static __poll_t tap_poll(struct file *file, poll_table *wait) { struct tap_queue *q = file->private_data; - unsigned int mask = POLLERR; + __poll_t mask = POLLERR; if (!q) goto out; @@@ -829,11 -829,8 +829,11 @@@ static ssize_t tap_do_read(struct tap_q DEFINE_WAIT(wait); ssize_t ret = 0; - if (!iov_iter_count(to)) + if (!iov_iter_count(to)) { + if (skb) + kfree_skb(skb); return 0; + } if (skb) goto put; @@@ -1157,14 -1154,11 +1157,14 @@@ static int tap_recvmsg(struct socket *s size_t total_len, int flags) { struct tap_queue *q = container_of(sock, struct tap_queue, sock); + struct sk_buff *skb = m->msg_control; int ret; - if (flags & ~(MSG_DONTWAIT|MSG_TRUNC)) + if (flags & ~(MSG_DONTWAIT|MSG_TRUNC)) { + if (skb) + kfree_skb(skb); return -EINVAL; - ret = tap_do_read(q, &m->msg_iter, flags & MSG_DONTWAIT, - m->msg_control); + } + ret = tap_do_read(q, &m->msg_iter, flags & MSG_DONTWAIT, skb); if (ret > total_len) { m->msg_flags |= MSG_TRUNC; ret = flags & MSG_TRUNC ? ret : total_len; diff --combined drivers/net/tun.c index 4f4a842a1c9c,130b049ac3da..2ffe5dba7e09 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@@ -1248,12 -1248,12 +1248,12 @@@ static void tun_net_init(struct net_dev /* Character device part */ /* Poll */ - static unsigned int tun_chr_poll(struct file *file, poll_table *wait) + static __poll_t tun_chr_poll(struct file *file, poll_table *wait) { struct tun_file *tfile = file->private_data; struct tun_struct *tun = tun_get(tfile); struct sock *sk; - unsigned int mask = 0; + __poll_t mask = 0; if (!tun) return POLLERR; @@@ -1952,11 -1952,8 +1952,11 @@@ static ssize_t tun_do_read(struct tun_s tun_debug(KERN_INFO, tun, "tun_do_read\n"); - if (!iov_iter_count(to)) + if (!iov_iter_count(to)) { + if (skb) + kfree_skb(skb); return 0; + } if (!skb) { /* Read frames from ring */ @@@ -2072,24 -2069,22 +2072,24 @@@ static int tun_recvmsg(struct socket *s { struct tun_file *tfile = container_of(sock, struct tun_file, socket); struct tun_struct *tun = tun_get(tfile); + struct sk_buff *skb = m->msg_control; int ret; - if (!tun) - return -EBADFD; + if (!tun) { + ret = -EBADFD; + goto out_free_skb; + } if (flags & ~(MSG_DONTWAIT|MSG_TRUNC|MSG_ERRQUEUE)) { ret = -EINVAL; - goto out; + goto out_put_tun; } if (flags & MSG_ERRQUEUE) { ret = sock_recv_errqueue(sock->sk, m, total_len, SOL_PACKET, TUN_TX_TIMESTAMP); goto out; } - ret = tun_do_read(tun, tfile, &m->msg_iter, flags & MSG_DONTWAIT, - m->msg_control); + ret = tun_do_read(tun, tfile, &m->msg_iter, flags & MSG_DONTWAIT, skb); if (ret > (ssize_t)total_len) { m->msg_flags |= MSG_TRUNC; ret = flags & MSG_TRUNC ? ret : total_len; @@@ -2097,13 -2092,6 +2097,13 @@@ out: tun_put(tun); return ret; + +out_put_tun: + tun_put(tun); +out_free_skb: + if (skb) + kfree_skb(skb); + return ret; } static int tun_peek_len(struct socket *sock) diff --combined drivers/staging/lustre/lnet/lnet/lib-socket.c index 7d49d4865298,984d76843b19..ed46aaca0ba3 --- a/drivers/staging/lustre/lnet/lnet/lib-socket.c +++ b/drivers/staging/lustre/lnet/lnet/lib-socket.c @@@ -71,12 -71,16 +71,12 @@@ lnet_sock_ioctl(int cmd, unsigned long } sock_filp = sock_alloc_file(sock, 0, NULL); - if (IS_ERR(sock_filp)) { - sock_release(sock); - rc = PTR_ERR(sock_filp); - goto out; - } + if (IS_ERR(sock_filp)) + return PTR_ERR(sock_filp); rc = kernel_sock_unlocked_ioctl(sock_filp, cmd, arg); fput(sock_filp); -out: return rc; } @@@ -314,19 -318,20 +314,20 @@@ lnet_sock_read(struct socket *sock, voi long jiffies_left = timeout * msecs_to_jiffies(MSEC_PER_SEC); unsigned long then; struct timeval tv; + struct kvec iov = { + .iov_base = buffer, + .iov_len = nob + }; + struct msghdr msg = { + .msg_flags = 0 + }; LASSERT(nob > 0); LASSERT(jiffies_left > 0); - for (;;) { - struct kvec iov = { - .iov_base = buffer, - .iov_len = nob - }; - struct msghdr msg = { - .msg_flags = 0 - }; + iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &iov, 1, nob); + for (;;) { /* Set receive timeout to remaining time */ jiffies_to_timeval(jiffies_left, &tv); rc = kernel_setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, @@@ -338,7 -343,7 +339,7 @@@ } then = jiffies; - rc = kernel_recvmsg(sock, &msg, &iov, 1, nob, 0); + rc = sock_recvmsg(sock, &msg, 0); jiffies_left -= jiffies - then; if (rc < 0) @@@ -347,10 -352,7 +348,7 @@@ if (!rc) return -ECONNRESET; - buffer = ((char *)buffer) + rc; - nob -= rc; - - if (!nob) + if (!msg_data_left(&msg)) return 0; if (jiffies_left <= 0) diff --combined drivers/tty/n_tty.c index 539b49adb6af,081bbbb7d49c..478a9b40fd03 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@@ -1762,7 -1762,7 +1762,7 @@@ static void n_tty_set_termios(struct tt { struct n_tty_data *ldata = tty->disc_data; - if (!old || (old->c_lflag ^ tty->termios.c_lflag) & ICANON) { + if (!old || (old->c_lflag ^ tty->termios.c_lflag) & (ICANON | EXTPROC)) { bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE); ldata->line_start = ldata->read_tail; if (!L_ICANON(tty) || !read_cnt(ldata)) { @@@ -2368,10 -2368,10 +2368,10 @@@ break_out * Called without the kernel lock held - fine */ - static unsigned int n_tty_poll(struct tty_struct *tty, struct file *file, + static __poll_t n_tty_poll(struct tty_struct *tty, struct file *file, poll_table *wait) { - unsigned int mask = 0; + __poll_t mask = 0; poll_wait(file, &tty->read_wait, wait); poll_wait(file, &tty->write_wait, wait); @@@ -2425,7 -2425,7 +2425,7 @@@ static int n_tty_ioctl(struct tty_struc return put_user(tty_chars_in_buffer(tty), (int __user *) arg); case TIOCINQ: down_write(&tty->termios_rwsem); - if (L_ICANON(tty)) + if (L_ICANON(tty) && !L_EXTPROC(tty)) retval = inq_canon(ldata); else retval = read_cnt(ldata); diff --combined drivers/usb/core/devio.c index a3fad4ec9870,929a7380be66..31404fc93d99 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@@ -1442,18 -1442,14 +1442,18 @@@ static int proc_do_submiturb(struct usb int number_of_packets = 0; unsigned int stream_id = 0; void *buf; - - if (uurb->flags & ~(USBDEVFS_URB_ISO_ASAP | - USBDEVFS_URB_SHORT_NOT_OK | + unsigned long mask = USBDEVFS_URB_SHORT_NOT_OK | USBDEVFS_URB_BULK_CONTINUATION | USBDEVFS_URB_NO_FSBR | USBDEVFS_URB_ZERO_PACKET | - USBDEVFS_URB_NO_INTERRUPT)) - return -EINVAL; + USBDEVFS_URB_NO_INTERRUPT; + /* USBDEVFS_URB_ISO_ASAP is a special case */ + if (uurb->type == USBDEVFS_URB_TYPE_ISO) + mask |= USBDEVFS_URB_ISO_ASAP; + + if (uurb->flags & ~mask) + return -EINVAL; + if ((unsigned int)uurb->buffer_length >= USBFS_XFER_MAX) return -EINVAL; if (uurb->buffer_length > 0 && !uurb->buffer) @@@ -2572,11 -2568,11 +2572,11 @@@ static long usbdev_compat_ioctl(struct #endif /* No kernel lock - fine */ - static unsigned int usbdev_poll(struct file *file, + static __poll_t usbdev_poll(struct file *file, struct poll_table_struct *wait) { struct usb_dev_state *ps = file->private_data; - unsigned int mask = 0; + __poll_t mask = 0; poll_wait(file, &ps->wait, wait); if (file->f_mode & FMODE_WRITE && !list_empty(&ps->async_completed)) diff --combined drivers/usb/gadget/function/f_fs.c index b6cf5ab5a0a1,17efadd6b395..b540935891af --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@@ -638,10 -638,10 +638,10 @@@ static long ffs_ep0_ioctl(struct file * return ret; } - static unsigned int ffs_ep0_poll(struct file *file, poll_table *wait) + static __poll_t ffs_ep0_poll(struct file *file, poll_table *wait) { struct ffs_data *ffs = file->private_data; - unsigned int mask = POLLWRNORM; + __poll_t mask = POLLWRNORM; int ret; poll_wait(file, &ffs->ev.waitq, wait); @@@ -1012,7 -1012,7 +1012,7 @@@ static ssize_t ffs_epfile_io(struct fil else ret = ep->status; goto error_mutex; - } else if (!(req = usb_ep_alloc_request(ep->ep, GFP_KERNEL))) { + } else if (!(req = usb_ep_alloc_request(ep->ep, GFP_ATOMIC))) { ret = -ENOMEM; } else { req->buf = data; @@@ -2282,18 -2282,9 +2282,18 @@@ static int __ffs_data_do_os_desc(enum f int i; if (len < sizeof(*d) || - d->bFirstInterfaceNumber >= ffs->interfaces_count || - !d->Reserved1) + d->bFirstInterfaceNumber >= ffs->interfaces_count) return -EINVAL; + if (d->Reserved1 != 1) { + /* + * According to the spec, Reserved1 must be set to 1 + * but older kernels incorrectly rejected non-zero + * values. We fix it here to avoid returning EINVAL + * in response to values we used to accept. + */ + pr_debug("usb_ext_compat_desc::Reserved1 forced to 1\n"); + d->Reserved1 = 1; + } for (i = 0; i < ARRAY_SIZE(d->Reserved2); ++i) if (d->Reserved2[i]) return -EINVAL; diff --combined drivers/vhost/net.c index c7bdeb655646,0ed445a17c54..9524ee16878a --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@@ -778,6 -778,16 +778,6 @@@ static void handle_rx(struct vhost_net /* On error, stop handling until the next kick. */ if (unlikely(headcount < 0)) goto out; - if (nvq->rx_array) - msg.msg_control = vhost_net_buf_consume(&nvq->rxq); - /* On overrun, truncate and discard */ - if (unlikely(headcount > UIO_MAXIOV)) { - iov_iter_init(&msg.msg_iter, READ, vq->iov, 1, 1); - err = sock->ops->recvmsg(sock, &msg, - 1, MSG_DONTWAIT | MSG_TRUNC); - pr_debug("Discarded rx packet: len %zd\n", sock_len); - continue; - } /* OK, now we need to know about added descriptors. */ if (!headcount) { if (unlikely(vhost_enable_notify(&net->dev, vq))) { @@@ -790,16 -800,6 +790,16 @@@ * they refilled. */ goto out; } + if (nvq->rx_array) + msg.msg_control = vhost_net_buf_consume(&nvq->rxq); + /* On overrun, truncate and discard */ + if (unlikely(headcount > UIO_MAXIOV)) { + iov_iter_init(&msg.msg_iter, READ, vq->iov, 1, 1); + err = sock->ops->recvmsg(sock, &msg, + 1, MSG_DONTWAIT | MSG_TRUNC); + pr_debug("Discarded rx packet: len %zd\n", sock_len); + continue; + } /* We don't need to be notified again. */ iov_iter_init(&msg.msg_iter, READ, vq->iov, in, vhost_len); fixup = msg.msg_iter; @@@ -1353,7 -1353,7 +1353,7 @@@ static ssize_t vhost_net_chr_write_iter return vhost_chr_write_iter(dev, from); } - static unsigned int vhost_net_chr_poll(struct file *file, poll_table *wait) + static __poll_t vhost_net_chr_poll(struct file *file, poll_table *wait) { struct vhost_net *n = file->private_data; struct vhost_dev *dev = &n->dev; diff --combined drivers/xen/pvcalls-front.c index 4c789e61554b,74c854955a6b..78804e71f9a6 --- a/drivers/xen/pvcalls-front.c +++ b/drivers/xen/pvcalls-front.c @@@ -805,7 -805,7 +805,7 @@@ int pvcalls_front_accept(struct socket pvcalls_exit(); return ret; } - map2 = kzalloc(sizeof(*map2), GFP_KERNEL); + map2 = kzalloc(sizeof(*map2), GFP_ATOMIC); if (map2 == NULL) { clear_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT, (void *)&map->passive.flags); @@@ -878,7 -878,7 +878,7 @@@ received return ret; } - static unsigned int pvcalls_front_poll_passive(struct file *file, + static __poll_t pvcalls_front_poll_passive(struct file *file, struct pvcalls_bedata *bedata, struct sock_mapping *map, poll_table *wait) @@@ -935,12 -935,12 +935,12 @@@ return 0; } - static unsigned int pvcalls_front_poll_active(struct file *file, + static __poll_t pvcalls_front_poll_active(struct file *file, struct pvcalls_bedata *bedata, struct sock_mapping *map, poll_table *wait) { - unsigned int mask = 0; + __poll_t mask = 0; int32_t in_error, out_error; struct pvcalls_data_intf *intf = map->active.ring; @@@ -958,12 -958,12 +958,12 @@@ return mask; } - unsigned int pvcalls_front_poll(struct file *file, struct socket *sock, + __poll_t pvcalls_front_poll(struct file *file, struct socket *sock, poll_table *wait) { struct pvcalls_bedata *bedata; struct sock_mapping *map; - int ret; + __poll_t ret; pvcalls_enter(); if (!pvcalls_front_dev) { @@@ -1103,7 -1103,7 +1103,7 @@@ static int pvcalls_front_remove(struct kfree(map); } } - if (bedata->ref >= 0) + if (bedata->ref != -1) gnttab_end_foreign_access(bedata->ref, 0, 0); kfree(bedata->ring.sring); kfree(bedata); @@@ -1128,8 -1128,6 +1128,8 @@@ static int pvcalls_front_probe(struct x } versions = xenbus_read(XBT_NIL, dev->otherend, "versions", &len); + if (IS_ERR(versions)) + return PTR_ERR(versions); if (!len) return -EINVAL; if (strcmp(versions, "1")) { diff --combined fs/userfaultfd.c index 41a75f9f23fd,c0a5d9c47c6d..743eaa646898 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@@ -570,14 -570,11 +570,14 @@@ out static void userfaultfd_event_wait_completion(struct userfaultfd_ctx *ctx, struct userfaultfd_wait_queue *ewq) { + struct userfaultfd_ctx *release_new_ctx; + if (WARN_ON_ONCE(current->flags & PF_EXITING)) goto out; ewq->ctx = ctx; init_waitqueue_entry(&ewq->wq, current); + release_new_ctx = NULL; spin_lock(&ctx->event_wqh.lock); /* @@@ -604,7 -601,8 +604,7 @@@ new = (struct userfaultfd_ctx *) (unsigned long) ewq->msg.arg.reserved.reserved1; - - userfaultfd_ctx_put(new); + release_new_ctx = new; } break; } @@@ -619,20 -617,6 +619,20 @@@ __set_current_state(TASK_RUNNING); spin_unlock(&ctx->event_wqh.lock); + if (release_new_ctx) { + struct vm_area_struct *vma; + struct mm_struct *mm = release_new_ctx->mm; + + /* the various vma->vm_userfaultfd_ctx still points to it */ + down_write(&mm->mmap_sem); + for (vma = mm->mmap; vma; vma = vma->vm_next) + if (vma->vm_userfaultfd_ctx.ctx == release_new_ctx) + vma->vm_userfaultfd_ctx = NULL_VM_UFFD_CTX; + up_write(&mm->mmap_sem); + + userfaultfd_ctx_put(release_new_ctx); + } + /* * ctx may go away after this if the userfault pseudo fd is * already released. @@@ -937,10 -921,10 +937,10 @@@ static inline struct userfaultfd_wait_q return find_userfault_in(&ctx->event_wqh); } - static unsigned int userfaultfd_poll(struct file *file, poll_table *wait) + static __poll_t userfaultfd_poll(struct file *file, poll_table *wait) { struct userfaultfd_ctx *ctx = file->private_data; - unsigned int ret; + __poll_t ret; poll_wait(file, &ctx->fd_wqh, wait); diff --combined include/crypto/if_alg.h index f38227a78eae,a50bdb9d7cfd..482461d8931d --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@@ -18,7 -18,6 +18,7 @@@ #include <linux/if_alg.h> #include <linux/scatterlist.h> #include <linux/types.h> +#include <linux/atomic.h> #include <net/sock.h> #include <crypto/aead.h> @@@ -151,7 -150,7 +151,7 @@@ struct af_alg_ctx struct crypto_wait wait; size_t used; - size_t rcvused; + atomic_t rcvused; bool more; bool merge; @@@ -216,7 -215,7 +216,7 @@@ static inline int af_alg_rcvbuf(struct struct af_alg_ctx *ctx = ask->private; return max_t(int, max_t(int, sk->sk_rcvbuf & PAGE_MASK, PAGE_SIZE) - - ctx->rcvused, 0); + atomic_read(&ctx->rcvused), 0); } /** @@@ -245,7 -244,7 +245,7 @@@ ssize_t af_alg_sendpage(struct socket * int offset, size_t size, int flags); void af_alg_free_resources(struct af_alg_async_req *areq); void af_alg_async_cb(struct crypto_async_request *_req, int err); - unsigned int af_alg_poll(struct file *file, struct socket *sock, + __poll_t af_alg_poll(struct file *file, struct socket *sock, poll_table *wait); struct af_alg_async_req *af_alg_alloc_areq(struct sock *sk, unsigned int areqlen); diff --combined include/linux/fs.h index 0cd0a7dae99e,3e52d1383d60..dccbe0fd38de --- a/include/linux/fs.h +++ b/include/linux/fs.h @@@ -1309,6 -1309,7 +1309,6 @@@ extern int send_sigurg(struct fown_stru #define UMOUNT_UNUSED 0x80000000 /* Flag guaranteed to be unused */ /* sb->s_iflags */ -#define SB_I_CGROUPWB 0x00000001 /* cgroup-aware writeback enabled */ #define SB_I_NOEXEC 0x00000002 /* Ignore executables on this fs */ #define SB_I_NODEV 0x00000004 /* Ignore devices on this fs */ @@@ -1358,7 -1359,7 +1358,7 @@@ struct super_block const struct fscrypt_operations *s_cop; - struct hlist_bl_head s_anon; /* anonymous dentries for (nfs) exporting */ + struct hlist_bl_head s_roots; /* alternate root dentries for NFS */ struct list_head s_mounts; /* list of mounts; _not_ for fs use */ struct block_device *s_bdev; struct backing_dev_info *s_bdi; @@@ -1607,6 -1608,10 +1607,10 @@@ extern int vfs_whiteout(struct inode * extern struct dentry *vfs_tmpfile(struct dentry *dentry, umode_t mode, int open_flag); + int vfs_mkobj(struct dentry *, umode_t, + int (*f)(struct dentry *, umode_t, void *), + void *); + /* * VFS file helper functions. */ @@@ -1697,7 -1702,7 +1701,7 @@@ struct file_operations ssize_t (*write_iter) (struct kiocb *, struct iov_iter *); int (*iterate) (struct file *, struct dir_context *); int (*iterate_shared) (struct file *, struct dir_context *); - unsigned int (*poll) (struct file *, struct poll_table_struct *); + __poll_t (*poll) (struct file *, struct poll_table_struct *); long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); long (*compat_ioctl) (struct file *, unsigned int, unsigned long); int (*mmap) (struct file *, struct vm_area_struct *); @@@ -1855,7 -1860,6 +1859,7 @@@ struct super_operations #define S_DAX 0 /* Make all the DAX code disappear */ #endif #define S_ENCRYPTED 16384 /* Encrypted file (using fs/crypto/) */ +#define S_CGROUPWB 32768 /* Enable cgroup writeback for this inode */ /* * Note that nosuid etc flags are inode-specific: setting some file-system @@@ -1896,7 -1900,6 +1900,7 @@@ static inline bool sb_rdonly(const stru #define IS_NOSEC(inode) ((inode)->i_flags & S_NOSEC) #define IS_DAX(inode) ((inode)->i_flags & S_DAX) #define IS_ENCRYPTED(inode) ((inode)->i_flags & S_ENCRYPTED) +#define IS_CGROUPWB(inode) ((inode)->i_flags & S_CGROUPWB) #define IS_WHITEOUT(inode) (S_ISCHR(inode->i_mode) && \ (inode)->i_rdev == WHITEOUT_DEV) diff --combined include/linux/skbuff.h index a38c80e9f91e,07564bb28c1f..a87e43d16f44 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@@ -1406,7 -1406,8 +1406,7 @@@ static inline struct sk_buff *skb_get(s } /* - * If users == 1, we are the only owner and are can avoid redundant - * atomic change. + * If users == 1, we are the only owner and can avoid redundant atomic changes. */ /** @@@ -3241,7 -3242,7 +3241,7 @@@ struct sk_buff *__skb_recv_datagram(str int *peeked, int *off, int *err); struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock, int *err); - unsigned int datagram_poll(struct file *file, struct socket *sock, + __poll_t datagram_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); int skb_copy_datagram_iter(const struct sk_buff *from, int offset, struct iov_iter *to, int size); diff --combined include/net/sock.h index 7a7b14e9628a,b33078333518..4fd74e0d1bbb --- a/include/net/sock.h +++ b/include/net/sock.h @@@ -685,7 -685,11 +685,7 @@@ static inline void sk_add_node_rcu(stru static inline void __sk_nulls_add_node_rcu(struct sock *sk, struct hlist_nulls_head *list) { - if (IS_ENABLED(CONFIG_IPV6) && sk->sk_reuseport && - sk->sk_family == AF_INET6) - hlist_nulls_add_tail_rcu(&sk->sk_nulls_node, list); - else - hlist_nulls_add_head_rcu(&sk->sk_nulls_node, list); + hlist_nulls_add_head_rcu(&sk->sk_nulls_node, list); } static inline void sk_nulls_add_node_rcu(struct sock *sk, struct hlist_nulls_head *list) @@@ -1514,11 -1518,6 +1514,11 @@@ static inline bool sock_owned_by_user(c return sk->sk_lock.owned; } +static inline bool sock_owned_by_user_nocheck(const struct sock *sk) +{ + return sk->sk_lock.owned; +} + /* no reclassification while locks are held */ static inline bool sock_allow_reclassification(const struct sock *csk) { @@@ -1583,7 -1582,7 +1583,7 @@@ int sock_no_connect(struct socket *, st int sock_no_socketpair(struct socket *, struct socket *); int sock_no_accept(struct socket *, struct socket *, int, bool); int sock_no_getname(struct socket *, struct sockaddr *, int *, int); - unsigned int sock_no_poll(struct file *, struct socket *, + __poll_t sock_no_poll(struct file *, struct socket *, struct poll_table_struct *); int sock_no_ioctl(struct socket *, unsigned int, unsigned long); int sock_no_listen(struct socket *, int); diff --combined include/net/tcp.h index 6da880d2f022,a6343271c629..50b21a49d870 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@@ -387,7 -387,7 +387,7 @@@ bool tcp_peer_is_proven(struct request_ void tcp_close(struct sock *sk, long timeout); void tcp_init_sock(struct sock *sk); void tcp_init_transfer(struct sock *sk, int bpf_op); - unsigned int tcp_poll(struct file *file, struct socket *sock, + __poll_t tcp_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); @@@ -844,11 -844,12 +844,11 @@@ static inline int tcp_v6_sdif(const str } #endif -/* TCP_SKB_CB reference means this can not be used from early demux */ static inline bool inet_exact_dif_match(struct net *net, struct sk_buff *skb) { #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) if (!net->ipv4.sysctl_tcp_l3mdev_accept && - skb && ipv4_l3mdev_skb(TCP_SKB_CB(skb)->header.h4.flags)) + skb && ipv4_l3mdev_skb(IPCB(skb)->flags)) return true; #endif return false; @@@ -1055,7 -1056,7 +1055,7 @@@ void tcp_rate_skb_sent(struct sock *sk void tcp_rate_skb_delivered(struct sock *sk, struct sk_buff *skb, struct rate_sample *rs); void tcp_rate_gen(struct sock *sk, u32 delivered, u32 lost, - struct rate_sample *rs); + bool is_sack_reneg, struct rate_sample *rs); void tcp_rate_check_app_limited(struct sock *sk); /* These functions determine how the current flow behaves in respect of SACK diff --combined kernel/events/core.c index 64ec2c9d2c44,857c40d98d2c..56d2b99de409 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@@ -4511,11 -4511,11 +4511,11 @@@ perf_read(struct file *file, char __use return ret; } - static unsigned int perf_poll(struct file *file, poll_table *wait) + static __poll_t perf_poll(struct file *file, poll_table *wait) { struct perf_event *event = file->private_data; struct ring_buffer *rb; - unsigned int events = POLLHUP; + __poll_t events = POLLHUP; poll_wait(file, &event->waitq, wait); @@@ -4904,7 -4904,6 +4904,7 @@@ void perf_event_update_userpage(struct unlock: rcu_read_unlock(); } +EXPORT_SYMBOL_GPL(perf_event_update_userpage); static int perf_mmap_fault(struct vm_fault *vmf) { @@@ -6640,7 -6639,6 +6640,7 @@@ static void perf_event_namespaces_outpu struct perf_namespaces_event *namespaces_event = data; struct perf_output_handle handle; struct perf_sample_data sample; + u16 header_size = namespaces_event->event_id.header.size; int ret; if (!perf_event_namespaces_match(event)) @@@ -6651,7 -6649,7 +6651,7 @@@ ret = perf_output_begin(&handle, event, namespaces_event->event_id.header.size); if (ret) - return; + goto out; namespaces_event->event_id.pid = perf_event_pid(event, namespaces_event->task); @@@ -6663,8 -6661,6 +6663,8 @@@ perf_event__output_id_sample(event, &handle, &sample); perf_output_end(&handle); +out: + namespaces_event->event_id.header.size = header_size; } static void perf_fill_ns_link_info(struct perf_ns_link_info *ns_link_info, @@@ -7991,11 -7987,11 +7991,11 @@@ static void bpf_overflow_handler(struc { struct bpf_perf_event_data_kern ctx = { .data = data, - .regs = regs, .event = event, }; int ret = 0; + ctx.regs = perf_arch_bpf_user_pt_regs(regs); preempt_disable(); if (unlikely(__this_cpu_inc_return(bpf_prog_active) != 1)) goto out; diff --combined kernel/printk/printk.c index b9006617710f,8aa27be96012..c2e713f6ae2e --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@@ -920,10 -920,10 +920,10 @@@ static loff_t devkmsg_llseek(struct fil return ret; } - static unsigned int devkmsg_poll(struct file *file, poll_table *wait) + static __poll_t devkmsg_poll(struct file *file, poll_table *wait) { struct devkmsg_user *user = file->private_data; - int ret = 0; + __poll_t ret = 0; if (!user) return POLLERR|POLLNVAL; @@@ -3141,6 -3141,9 +3141,6 @@@ void dump_stack_print_info(const char * void show_regs_print_info(const char *log_lvl) { dump_stack_print_info(log_lvl); - - printk("%stask: %p task.stack: %p\n", - log_lvl, current, task_stack_page(current)); } #endif diff --combined kernel/trace/ring_buffer.c index 9ab18995ff1e,d24d48713ef3..d399b4072951 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@@ -280,8 -280,6 +280,8 @@@ EXPORT_SYMBOL_GPL(ring_buffer_event_dat /* Missed count stored at end */ #define RB_MISSED_STORED (1 << 30) +#define RB_MISSED_FLAGS (RB_MISSED_EVENTS|RB_MISSED_STORED) + struct buffer_data_page { u64 time_stamp; /* page time stamp */ local_t commit; /* write committed index */ @@@ -333,9 -331,7 +333,9 @@@ static void rb_init_page(struct buffer_ */ size_t ring_buffer_page_len(void *page) { - return local_read(&((struct buffer_data_page *)page)->commit) + struct buffer_data_page *bpage = page; + + return (local_read(&bpage->commit) & ~RB_MISSED_FLAGS) + BUF_PAGE_HDR_SIZE; } @@@ -630,7 -626,7 +630,7 @@@ int ring_buffer_wait(struct ring_buffe * Returns POLLIN | POLLRDNORM if data exists in the buffers, * zero otherwise. */ - int ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu, + __poll_t ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu, struct file *filp, poll_table *poll_table) { struct ring_buffer_per_cpu *cpu_buffer; @@@ -1803,6 -1799,12 +1803,6 @@@ void ring_buffer_change_overwrite(struc } EXPORT_SYMBOL_GPL(ring_buffer_change_overwrite); -static __always_inline void * -__rb_data_page_index(struct buffer_data_page *bpage, unsigned index) -{ - return bpage->data + index; -} - static __always_inline void *__rb_page_index(struct buffer_page *bpage, unsigned index) { return bpage->page->data + index; @@@ -4404,13 -4406,8 +4404,13 @@@ void ring_buffer_free_read_page(struct { struct ring_buffer_per_cpu *cpu_buffer = buffer->buffers[cpu]; struct buffer_data_page *bpage = data; + struct page *page = virt_to_page(bpage); unsigned long flags; + /* If the page is still in use someplace else, we can't reuse it */ + if (page_ref_count(page) > 1) + goto out; + local_irq_save(flags); arch_spin_lock(&cpu_buffer->lock); @@@ -4422,7 -4419,6 +4422,7 @@@ arch_spin_unlock(&cpu_buffer->lock); local_irq_restore(flags); + out: free_page((unsigned long)bpage); } EXPORT_SYMBOL_GPL(ring_buffer_free_read_page); diff --combined kernel/trace/trace.c index 2a8d8a294345,1e2a45e87b93..ec54e2e14b71 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@@ -362,7 -362,7 +362,7 @@@ trace_ignore_this_task(struct trace_pid } /** - * trace_pid_filter_add_remove - Add or remove a task from a pid_list + * trace_pid_filter_add_remove_task - Add or remove a task from a pid_list * @pid_list: The list to modify * @self: The current task for fork or NULL for exit * @task: The task to add or remove @@@ -925,7 -925,7 +925,7 @@@ static void tracing_snapshot_instance(s } /** - * trace_snapshot - take a snapshot of the current buffer. + * tracing_snapshot - take a snapshot of the current buffer. * * This causes a swap between the snapshot buffer and the current live * tracing buffer. You can use this to take snapshots of the live @@@ -1004,9 -1004,9 +1004,9 @@@ int tracing_alloc_snapshot(void EXPORT_SYMBOL_GPL(tracing_alloc_snapshot); /** - * trace_snapshot_alloc - allocate and take a snapshot of the current buffer. + * tracing_snapshot_alloc - allocate and take a snapshot of the current buffer. * - * This is similar to trace_snapshot(), but it will allocate the + * This is similar to tracing_snapshot(), but it will allocate the * snapshot buffer if it isn't already allocated. Use this only * where it is safe to sleep, as the allocation may sleep. * @@@ -1303,7 -1303,7 +1303,7 @@@ unsigned long __read_mostly tracing_thr /* * Copy the new maximum trace into the separate maximum-trace * structure. (this way the maximum trace is permanently saved, - * for later retrieval via /sys/kernel/debug/tracing/latency_trace) + * for later retrieval via /sys/kernel/tracing/tracing_max_latency) */ static void __update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu) @@@ -2415,7 -2415,7 +2415,7 @@@ trace_process_export(struct trace_expor entry = ring_buffer_event_data(event); size = ring_buffer_event_length(event); - export->write(entry, size); + export->write(export, entry, size); } static DEFINE_MUTEX(ftrace_export_lock); @@@ -4178,30 -4178,37 +4178,30 @@@ static const struct file_operations sho .llseek = seq_lseek, }; -/* - * The tracer itself will not take this lock, but still we want - * to provide a consistent cpumask to user-space: - */ -static DEFINE_MUTEX(tracing_cpumask_update_lock); - -/* - * Temporary storage for the character representation of the - * CPU bitmask (and one more byte for the newline): - */ -static char mask_str[NR_CPUS + 1]; - static ssize_t tracing_cpumask_read(struct file *filp, char __user *ubuf, size_t count, loff_t *ppos) { struct trace_array *tr = file_inode(filp)->i_private; + char *mask_str; int len; - mutex_lock(&tracing_cpumask_update_lock); + len = snprintf(NULL, 0, "%*pb\n", + cpumask_pr_args(tr->tracing_cpumask)) + 1; + mask_str = kmalloc(len, GFP_KERNEL); + if (!mask_str) + return -ENOMEM; - len = snprintf(mask_str, count, "%*pb\n", + len = snprintf(mask_str, len, "%*pb\n", cpumask_pr_args(tr->tracing_cpumask)); if (len >= count) { count = -EINVAL; goto out_err; } - count = simple_read_from_buffer(ubuf, count, ppos, mask_str, NR_CPUS+1); + count = simple_read_from_buffer(ubuf, count, ppos, mask_str, len); out_err: - mutex_unlock(&tracing_cpumask_update_lock); + kfree(mask_str); return count; } @@@ -4221,6 -4228,8 +4221,6 @@@ tracing_cpumask_write(struct file *filp if (err) goto err_unlock; - mutex_lock(&tracing_cpumask_update_lock); - local_irq_disable(); arch_spin_lock(&tr->max_lock); for_each_tracing_cpu(cpu) { @@@ -4243,6 -4252,8 +4243,6 @@@ local_irq_enable(); cpumask_copy(tr->tracing_cpumask, tracing_cpumask_new); - - mutex_unlock(&tracing_cpumask_update_lock); free_cpumask_var(tracing_cpumask_new); return count; @@@ -5621,7 -5632,7 +5621,7 @@@ static int tracing_release_pipe(struct return 0; } - static unsigned int + static __poll_t trace_poll(struct trace_iterator *iter, struct file *filp, poll_table *poll_table) { struct trace_array *tr = iter->tr; @@@ -5640,7 -5651,7 +5640,7 @@@ filp, poll_table); } - static unsigned int + static __poll_t tracing_poll_pipe(struct file *filp, poll_table *poll_table) { struct trace_iterator *iter = filp->private_data; @@@ -6594,7 -6605,7 +6594,7 @@@ static int tracing_buffers_open(struct return ret; } - static unsigned int + static __poll_t tracing_buffers_poll(struct file *filp, poll_table *poll_table) { struct ftrace_buffer_info *info = filp->private_data; @@@ -6769,7 -6780,7 +6769,7 @@@ tracing_buffers_splice_read(struct fil .spd_release = buffer_spd_release, }; struct buffer_ref *ref; - int entries, size, i; + int entries, i; ssize_t ret = 0; #ifdef CONFIG_TRACER_MAX_TRACE @@@ -6823,6 -6834,14 +6823,6 @@@ break; } - /* - * zero out any left over data, this is going to - * user land. - */ - size = ring_buffer_page_len(ref->page); - if (size < PAGE_SIZE) - memset(ref->page + size, 0, PAGE_SIZE - size); - page = virt_to_page(ref->page); spd.pages[i] = page; @@@ -7580,7 -7599,6 +7580,7 @@@ allocate_trace_buffer(struct trace_arra buf->data = alloc_percpu(struct trace_array_cpu); if (!buf->data) { ring_buffer_free(buf->buffer); + buf->buffer = NULL; return -ENOMEM; } @@@ -7604,9 -7622,7 +7604,9 @@@ static int allocate_trace_buffers(struc allocate_snapshot ? size : 1); if (WARN_ON(ret)) { ring_buffer_free(tr->trace_buffer.buffer); + tr->trace_buffer.buffer = NULL; free_percpu(tr->trace_buffer.data); + tr->trace_buffer.data = NULL; return -ENOMEM; } tr->allocated_snapshot = allocate_snapshot; diff --combined mm/gup.c index e0d82b6706d7,17ee7a18aa11..9e17d8db2d6b --- a/mm/gup.c +++ b/mm/gup.c @@@ -66,7 -66,7 +66,7 @@@ static int follow_pfn_pte(struct vm_are */ static inline bool can_follow_write_pte(pte_t pte, unsigned int flags) { - return pte_access_permitted(pte, WRITE) || + return pte_write(pte) || ((flags & FOLL_FORCE) && (flags & FOLL_COW) && pte_dirty(pte)); } @@@ -848,7 -848,7 +848,7 @@@ static __always_inline long __get_user_ unsigned long nr_pages, struct page **pages, struct vm_area_struct **vmas, - int *locked, bool notify_drop, + int *locked, unsigned int flags) { long ret, pages_done; @@@ -922,7 -922,7 +922,7 @@@ pages++; start += PAGE_SIZE; } - if (notify_drop && lock_dropped && *locked) { + if (lock_dropped && *locked) { /* * We must let the caller know we temporarily dropped the lock * and so the critical section protected by it was lost. @@@ -959,36 -959,12 +959,12 @@@ long get_user_pages_locked(unsigned lon int *locked) { return __get_user_pages_locked(current, current->mm, start, nr_pages, - pages, NULL, locked, true, + pages, NULL, locked, gup_flags | FOLL_TOUCH); } EXPORT_SYMBOL(get_user_pages_locked); /* - * Same as get_user_pages_unlocked(...., FOLL_TOUCH) but it allows for - * tsk, mm to be specified. - * - * NOTE: here FOLL_TOUCH is not set implicitly and must be set by the - * caller if required (just like with __get_user_pages). "FOLL_GET" - * is set implicitly if "pages" is non-NULL. - */ - static __always_inline long __get_user_pages_unlocked(struct task_struct *tsk, - struct mm_struct *mm, unsigned long start, - unsigned long nr_pages, struct page **pages, - unsigned int gup_flags) - { - long ret; - int locked = 1; - - down_read(&mm->mmap_sem); - ret = __get_user_pages_locked(tsk, mm, start, nr_pages, pages, NULL, - &locked, false, gup_flags); - if (locked) - up_read(&mm->mmap_sem); - return ret; - } - - /* * get_user_pages_unlocked() is suitable to replace the form: * * down_read(&mm->mmap_sem); @@@ -1006,8 -982,16 +982,16 @@@ long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages, struct page **pages, unsigned int gup_flags) { - return __get_user_pages_unlocked(current, current->mm, start, nr_pages, - pages, gup_flags | FOLL_TOUCH); + struct mm_struct *mm = current->mm; + int locked = 1; + long ret; + + down_read(&mm->mmap_sem); + ret = __get_user_pages_locked(current, mm, start, nr_pages, pages, NULL, + &locked, gup_flags | FOLL_TOUCH); + if (locked) + up_read(&mm->mmap_sem); + return ret; } EXPORT_SYMBOL(get_user_pages_unlocked); @@@ -1073,7 -1057,7 +1057,7 @@@ long get_user_pages_remote(struct task_ struct vm_area_struct **vmas, int *locked) { return __get_user_pages_locked(tsk, mm, start, nr_pages, pages, vmas, - locked, true, + locked, gup_flags | FOLL_TOUCH | FOLL_REMOTE); } EXPORT_SYMBOL(get_user_pages_remote); @@@ -1090,7 -1074,7 +1074,7 @@@ long get_user_pages(unsigned long start struct vm_area_struct **vmas) { return __get_user_pages_locked(current, current->mm, start, nr_pages, - pages, vmas, NULL, false, + pages, vmas, NULL, gup_flags | FOLL_TOUCH); } EXPORT_SYMBOL(get_user_pages); diff --combined net/9p/trans_fd.c index 80f5c79053a4,439014113a5c..d6f7f7cb79c4 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@@ -228,32 -228,31 +228,31 @@@ static void p9_conn_cancel(struct p9_co } } - static int - p9_fd_poll(struct p9_client *client, struct poll_table_struct *pt) + static __poll_t + p9_fd_poll(struct p9_client *client, struct poll_table_struct *pt, int *err) { - int ret, n; + __poll_t ret, n; struct p9_trans_fd *ts = NULL; if (client && client->status == Connected) ts = client->trans; - if (!ts) - return -EREMOTEIO; + if (!ts) { + if (err) + *err = -EREMOTEIO; + return POLLERR; + } if (!ts->rd->f_op->poll) - return -EIO; - - if (!ts->wr->f_op->poll) - return -EIO; - - ret = ts->rd->f_op->poll(ts->rd, pt); - if (ret < 0) - return ret; + ret = DEFAULT_POLLMASK; + else + ret = ts->rd->f_op->poll(ts->rd, pt); if (ts->rd != ts->wr) { - n = ts->wr->f_op->poll(ts->wr, pt); - if (n < 0) - return n; + if (!ts->wr->f_op->poll) + n = DEFAULT_POLLMASK; + else + n = ts->wr->f_op->poll(ts->wr, pt); ret = (ret & ~POLLOUT) | (n & ~POLLIN); } @@@ -298,7 -297,8 +297,8 @@@ static int p9_fd_read(struct p9_client static void p9_read_work(struct work_struct *work) { - int n, err; + __poll_t n; + int err; struct p9_conn *m; int status = REQ_STATUS_ERROR; @@@ -398,7 -398,7 +398,7 @@@ end_clear if (test_and_clear_bit(Rpending, &m->wsched)) n = POLLIN; else - n = p9_fd_poll(m->client, NULL); + n = p9_fd_poll(m->client, NULL, NULL); if ((n & POLLIN) && !test_and_set_bit(Rworksched, &m->wsched)) { p9_debug(P9_DEBUG_TRANS, "sched read work %p\n", m); @@@ -448,7 -448,8 +448,8 @@@ static int p9_fd_write(struct p9_clien static void p9_write_work(struct work_struct *work) { - int n, err; + __poll_t n; + int err; struct p9_conn *m; struct p9_req_t *req; @@@ -506,7 -507,7 +507,7 @@@ end_clear if (test_and_clear_bit(Wpending, &m->wsched)) n = POLLOUT; else - n = p9_fd_poll(m->client, NULL); + n = p9_fd_poll(m->client, NULL, NULL); if ((n & POLLOUT) && !test_and_set_bit(Wworksched, &m->wsched)) { @@@ -581,7 -582,7 +582,7 @@@ p9_pollwait(struct file *filp, wait_que static void p9_conn_create(struct p9_client *client) { - int n; + __poll_t n; struct p9_trans_fd *ts = client->trans; struct p9_conn *m = &ts->conn; @@@ -597,7 -598,7 +598,7 @@@ INIT_LIST_HEAD(&m->poll_pending_link); init_poll_funcptr(&m->pt, p9_pollwait); - n = p9_fd_poll(client, &m->pt); + n = p9_fd_poll(client, &m->pt, NULL); if (n & POLLIN) { p9_debug(P9_DEBUG_TRANS, "mux %p can read\n", m); set_bit(Rpending, &m->wsched); @@@ -617,17 -618,16 +618,16 @@@ static void p9_poll_mux(struct p9_conn *m) { - int n; + __poll_t n; + int err = -ECONNRESET; if (m->err < 0) return; - n = p9_fd_poll(m->client, NULL); - if (n < 0 || n & (POLLERR | POLLHUP | POLLNVAL)) { + n = p9_fd_poll(m->client, NULL, &err); + if (n & (POLLERR | POLLHUP | POLLNVAL)) { p9_debug(P9_DEBUG_TRANS, "error mux %p err %d\n", m, n); - if (n >= 0) - n = -ECONNRESET; - p9_conn_cancel(m, n); + p9_conn_cancel(m, err); } if (n & POLLIN) { @@@ -663,7 -663,7 +663,7 @@@ static int p9_fd_request(struct p9_client *client, struct p9_req_t *req) { - int n; + __poll_t n; struct p9_trans_fd *ts = client->trans; struct p9_conn *m = &ts->conn; @@@ -680,7 -680,7 +680,7 @@@ if (test_and_clear_bit(Wpending, &m->wsched)) n = POLLOUT; else - n = p9_fd_poll(m->client, NULL); + n = p9_fd_poll(m->client, NULL, NULL); if (n & POLLOUT && !test_and_set_bit(Wworksched, &m->wsched)) schedule_work(&m->wq); @@@ -839,6 -839,7 +839,6 @@@ static int p9_socket_open(struct p9_cli if (IS_ERR(file)) { pr_err("%s (%d): failed to map fd\n", __func__, task_pid_nr(current)); - sock_release(csocket); kfree(p); return PTR_ERR(file); } diff --combined net/dccp/proto.c index 9d43c1f40274,cfa9ca9939ce..8b8db3d481bd --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@@ -259,7 -259,6 +259,7 @@@ int dccp_disconnect(struct sock *sk, in { struct inet_connection_sock *icsk = inet_csk(sk); struct inet_sock *inet = inet_sk(sk); + struct dccp_sock *dp = dccp_sk(sk); int err = 0; const int old_state = sk->sk_state; @@@ -279,10 -278,6 +279,10 @@@ sk->sk_err = ECONNRESET; dccp_clear_xmit_timers(sk); + ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk); + ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk); + dp->dccps_hc_rx_ccid = NULL; + dp->dccps_hc_tx_ccid = NULL; __skb_queue_purge(&sk->sk_receive_queue); __skb_queue_purge(&sk->sk_write_queue); @@@ -318,10 -313,10 +318,10 @@@ EXPORT_SYMBOL_GPL(dccp_disconnect) * take care of normal races (between the test and the event) and we don't * go look at any of the socket buffers directly. */ - unsigned int dccp_poll(struct file *file, struct socket *sock, + __poll_t dccp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask; + __poll_t mask; struct sock *sk = sock->sk; sock_poll_wait(file, sk_sleep(sk), wait); diff --combined net/ipv4/tcp.c index f08eebe60446,0b8ca689353b..c4a7ee7f6721 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@@ -493,9 -493,9 +493,9 @@@ static void tcp_tx_timestamp(struct soc * take care of normal races (between the test and the event) and we don't * go look at any of the socket buffers directly. */ - unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) + __poll_t tcp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask; + __poll_t mask; struct sock *sk = sock->sk; const struct tcp_sock *tp = tcp_sk(sk); int state; @@@ -2412,7 -2412,6 +2412,7 @@@ int tcp_disconnect(struct sock *sk, in tp->snd_cwnd_cnt = 0; tp->window_clamp = 0; tcp_set_ca_state(sk, TCP_CA_Open); + tp->is_sack_reneg = 0; tcp_clear_retrans(tp); inet_csk_delack_init(sk); /* Initialize rcv_mss to TCP_MIN_MSS to avoid division by 0 diff --combined net/rxrpc/af_rxrpc.c index dcd818fa837e,50ae1e2557fe..21ad6a3a465c --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@@ -729,12 -729,12 +729,12 @@@ static int rxrpc_getsockopt(struct sock /* * permit an RxRPC socket to be polled */ - static unsigned int rxrpc_poll(struct file *file, struct socket *sock, + static __poll_t rxrpc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct rxrpc_sock *rx = rxrpc_sk(sk); - unsigned int mask; + __poll_t mask; sock_poll_wait(file, sk_sleep(sk), wait); mask = 0; @@@ -860,7 -860,6 +860,7 @@@ static void rxrpc_sock_destructor(struc static int rxrpc_release_sock(struct sock *sk) { struct rxrpc_sock *rx = rxrpc_sk(sk); + struct rxrpc_net *rxnet = rxrpc_net(sock_net(&rx->sk)); _enter("%p{%d,%d}", sk, sk->sk_state, refcount_read(&sk->sk_refcnt)); @@@ -896,8 -895,8 +896,8 @@@ rxrpc_release_calls_on_socket(rx); flush_workqueue(rxrpc_workqueue); rxrpc_purge_queue(&sk->sk_receive_queue); - rxrpc_queue_work(&rx->local->rxnet->service_conn_reaper); - rxrpc_queue_work(&rx->local->rxnet->client_conn_reaper); + rxrpc_queue_work(&rxnet->service_conn_reaper); + rxrpc_queue_work(&rxnet->client_conn_reaper); rxrpc_put_local(rx->local); rx->local = NULL; diff --combined net/sctp/socket.c index b4fb6e4886d2,3a1b134ff592..8f7536de5f41 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@@ -3891,17 -3891,13 +3891,17 @@@ static int sctp_setsockopt_reset_stream struct sctp_association *asoc; int retval = -EINVAL; - if (optlen < sizeof(struct sctp_reset_streams)) + if (optlen < sizeof(*params)) return -EINVAL; params = memdup_user(optval, optlen); if (IS_ERR(params)) return PTR_ERR(params); + if (params->srs_number_streams * sizeof(__u16) > + optlen - sizeof(*params)) + goto out; + asoc = sctp_id2assoc(sk, params->srs_assoc_id); if (!asoc) goto out; @@@ -4498,7 -4494,7 +4498,7 @@@ static int sctp_init_sock(struct sock * SCTP_DBG_OBJCNT_INC(sock); local_bh_disable(); - percpu_counter_inc(&sctp_sockets_allocated); + sk_sockets_allocated_inc(sk); sock_prot_inuse_add(net, sk->sk_prot, 1); /* Nothing can fail after this block, otherwise @@@ -4542,7 -4538,7 +4542,7 @@@ static void sctp_destroy_sock(struct so } sctp_endpoint_free(sp->ep); local_bh_disable(); - percpu_counter_dec(&sctp_sockets_allocated); + sk_sockets_allocated_dec(sk); sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); local_bh_enable(); } @@@ -5084,6 -5080,7 +5084,6 @@@ static int sctp_getsockopt_peeloff_comm *newfile = sock_alloc_file(newsock, 0, NULL); if (IS_ERR(*newfile)) { put_unused_fd(retval); - sock_release(newsock); retval = PTR_ERR(*newfile); *newfile = NULL; return retval; @@@ -7500,11 -7497,11 +7500,11 @@@ out * here, again, by modeling the current TCP/UDP code. We don't have * a good way to test with it yet. */ - unsigned int sctp_poll(struct file *file, struct socket *sock, poll_table *wait) + __poll_t sctp_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct sctp_sock *sp = sctp_sk(sk); - unsigned int mask; + __poll_t mask; poll_wait(file, sk_sleep(sk), wait); diff --combined net/socket.c index 05f361faec45,3e5e4f13046c..092baa464afc --- a/net/socket.c +++ b/net/socket.c @@@ -118,7 -118,7 +118,7 @@@ static ssize_t sock_write_iter(struct k static int sock_mmap(struct file *file, struct vm_area_struct *vma); static int sock_close(struct inode *inode, struct file *file); - static unsigned int sock_poll(struct file *file, + static __poll_t sock_poll(struct file *file, struct poll_table_struct *wait); static long sock_ioctl(struct file *file, unsigned int cmd, unsigned long arg); #ifdef CONFIG_COMPAT @@@ -406,10 -406,8 +406,10 @@@ struct file *sock_alloc_file(struct soc name.len = strlen(name.name); } path.dentry = d_alloc_pseudo(sock_mnt->mnt_sb, &name); - if (unlikely(!path.dentry)) + if (unlikely(!path.dentry)) { + sock_release(sock); return ERR_PTR(-ENOMEM); + } path.mnt = mntget(sock_mnt); d_instantiate(path.dentry, SOCK_INODE(sock)); @@@ -417,11 -415,9 +417,11 @@@ file = alloc_file(&path, FMODE_READ | FMODE_WRITE, &socket_file_ops); if (IS_ERR(file)) { - /* drop dentry, keep inode */ + /* drop dentry, keep inode for a bit */ ihold(d_inode(path.dentry)); path_put(&path); + /* ... and now kill it properly */ + sock_release(sock); return file; } @@@ -1095,9 -1091,9 +1095,9 @@@ out_release EXPORT_SYMBOL(sock_create_lite); /* No kernel lock held - perfect */ - static unsigned int sock_poll(struct file *file, poll_table *wait) + static __poll_t sock_poll(struct file *file, poll_table *wait) { - unsigned int busy_flag = 0; + __poll_t busy_flag = 0; struct socket *sock; /* @@@ -1334,9 -1330,19 +1334,9 @@@ SYSCALL_DEFINE3(socket, int, family, in retval = sock_create(family, type, protocol, &sock); if (retval < 0) - goto out; - - retval = sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK)); - if (retval < 0) - goto out_release; - -out: - /* It may be already another descriptor 8) Not kernel problem. */ - return retval; + return retval; -out_release: - sock_release(sock); - return retval; + return sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK)); } /* @@@ -1360,72 -1366,87 +1360,72 @@@ SYSCALL_DEFINE4(socketpair, int, family flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; /* + * reserve descriptors and make sure we won't fail + * to return them to userland. + */ + fd1 = get_unused_fd_flags(flags); + if (unlikely(fd1 < 0)) + return fd1; + + fd2 = get_unused_fd_flags(flags); + if (unlikely(fd2 < 0)) { + put_unused_fd(fd1); + return fd2; + } + + err = put_user(fd1, &usockvec[0]); + if (err) + goto out; + + err = put_user(fd2, &usockvec[1]); + if (err) + goto out; + + /* * Obtain the first socket and check if the underlying protocol * supports the socketpair call. */ err = sock_create(family, type, protocol, &sock1); - if (err < 0) + if (unlikely(err < 0)) goto out; err = sock_create(family, type, protocol, &sock2); - if (err < 0) - goto out_release_1; - - err = sock1->ops->socketpair(sock1, sock2); - if (err < 0) - goto out_release_both; - - fd1 = get_unused_fd_flags(flags); - if (unlikely(fd1 < 0)) { - err = fd1; - goto out_release_both; + if (unlikely(err < 0)) { + sock_release(sock1); + goto out; } - fd2 = get_unused_fd_flags(flags); - if (unlikely(fd2 < 0)) { - err = fd2; - goto out_put_unused_1; + err = sock1->ops->socketpair(sock1, sock2); + if (unlikely(err < 0)) { + sock_release(sock2); + sock_release(sock1); + goto out; } newfile1 = sock_alloc_file(sock1, flags, NULL); if (IS_ERR(newfile1)) { err = PTR_ERR(newfile1); - goto out_put_unused_both; + sock_release(sock2); + goto out; } newfile2 = sock_alloc_file(sock2, flags, NULL); if (IS_ERR(newfile2)) { err = PTR_ERR(newfile2); - goto out_fput_1; + fput(newfile1); + goto out; } - err = put_user(fd1, &usockvec[0]); - if (err) - goto out_fput_both; - - err = put_user(fd2, &usockvec[1]); - if (err) - goto out_fput_both; - audit_fd_pair(fd1, fd2); fd_install(fd1, newfile1); fd_install(fd2, newfile2); - /* fd1 and fd2 may be already another descriptors. - * Not kernel problem. - */ - return 0; -out_fput_both: - fput(newfile2); - fput(newfile1); - put_unused_fd(fd2); - put_unused_fd(fd1); - goto out; - -out_fput_1: - fput(newfile1); - put_unused_fd(fd2); - put_unused_fd(fd1); - sock_release(sock2); - goto out; - -out_put_unused_both: +out: put_unused_fd(fd2); -out_put_unused_1: put_unused_fd(fd1); -out_release_both: - sock_release(sock2); -out_release_1: - sock_release(sock1); -out: return err; } @@@ -1541,6 -1562,7 +1541,6 @@@ SYSCALL_DEFINE4(accept4, int, fd, struc if (IS_ERR(newfile)) { err = PTR_ERR(newfile); put_unused_fd(newfd); - sock_release(newsock); goto out_put; } diff --combined net/tipc/server.c index d60c30342327,0c3b74d1e722..78a292a84afc --- a/net/tipc/server.c +++ b/net/tipc/server.c @@@ -264,8 -264,8 +264,8 @@@ static int tipc_receive_from_sock(struc iov.iov_base = buf; iov.iov_len = s->max_rcvbuf_size; msg.msg_name = &addr; - ret = kernel_recvmsg(con->sock, &msg, &iov, 1, iov.iov_len, - MSG_DONTWAIT); + iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &iov, 1, iov.iov_len); + ret = sock_recvmsg(con->sock, &msg, MSG_DONTWAIT); if (ret <= 0) { kmem_cache_free(s->rcvbuf_cache, buf); goto out_close; @@@ -314,7 -314,6 +314,7 @@@ static int tipc_accept_from_sock(struc newcon->usr_data = s->tipc_conn_new(newcon->conid); if (!newcon->usr_data) { sock_release(newsock); + conn_put(newcon); return -ENOMEM; } @@@ -512,7 -511,7 +512,7 @@@ bool tipc_topsrv_kern_subscr(struct ne s = con->server; scbr = s->tipc_conn_new(*conid); if (!scbr) { - tipc_close_conn(con); + conn_put(con); return false; } diff --combined net/tipc/socket.c index 3b4084480377,d94d25855190..2aa46e8cd8fe --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@@ -710,13 -710,13 +710,13 @@@ static int tipc_getname(struct socket * * imply that the operation will succeed, merely that it should be performed * and will not block. */ - static unsigned int tipc_poll(struct file *file, struct socket *sock, + static __poll_t tipc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct tipc_sock *tsk = tipc_sk(sk); struct tipc_group *grp = tsk->group; - u32 revents = 0; + __poll_t revents = 0; sock_poll_wait(file, sk_sleep(sk), wait); @@@ -727,11 -727,11 +727,11 @@@ switch (sk->sk_state) { case TIPC_ESTABLISHED: + case TIPC_CONNECTING: if (!tsk->cong_link_cnt && !tsk_conn_cong(tsk)) revents |= POLLOUT; /* fall thru' */ case TIPC_LISTEN: - case TIPC_CONNECTING: if (!skb_queue_empty(&sk->sk_receive_queue)) revents |= POLLIN | POLLRDNORM; break; @@@ -1140,7 -1140,7 +1140,7 @@@ void tipc_sk_mcast_rcv(struct net *net __skb_dequeue(arrvq); __skb_queue_tail(inputq, skb); } - refcount_dec(&skb->users); + kfree_skb(skb); spin_unlock_bh(&inputq->lock); continue; } diff --combined sound/core/oss/pcm_oss.c index ceaa51f76591,caa4d0c949bf..eea99b677441 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@@ -455,6 -455,7 +455,6 @@@ static int snd_pcm_hw_param_near(struc v = snd_pcm_hw_param_last(pcm, params, var, dir); else v = snd_pcm_hw_param_first(pcm, params, var, dir); - snd_BUG_ON(v < 0); return v; } @@@ -2672,10 -2673,10 +2672,10 @@@ static int snd_pcm_oss_capture_ready(st runtime->oss.period_frames; } - static unsigned int snd_pcm_oss_poll(struct file *file, poll_table * wait) + static __poll_t snd_pcm_oss_poll(struct file *file, poll_table * wait) { struct snd_pcm_oss_file *pcm_oss_file; - unsigned int mask; + __poll_t mask; struct snd_pcm_substream *psubstream = NULL, *csubstream = NULL; pcm_oss_file = file->private_data; diff --combined sound/core/pcm_native.c index f08772568c17,6077dd6a0901..3f13e8da0812 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@@ -2580,7 -2580,7 +2580,7 @@@ static snd_pcm_sframes_t forward_appl_p return ret < 0 ? ret : frames; } -/* decrease the appl_ptr; returns the processed frames or a negative error */ +/* decrease the appl_ptr; returns the processed frames or zero for error */ static snd_pcm_sframes_t rewind_appl_ptr(struct snd_pcm_substream *substream, snd_pcm_uframes_t frames, snd_pcm_sframes_t avail) @@@ -2597,12 -2597,7 +2597,12 @@@ if (appl_ptr < 0) appl_ptr += runtime->boundary; ret = pcm_lib_apply_appl_ptr(substream, appl_ptr); - return ret < 0 ? ret : frames; + /* NOTE: we return zero for errors because PulseAudio gets depressed + * upon receiving an error from rewind ioctl and stops processing + * any longer. Returning zero means that no rewind is done, so + * it's not absolutely wrong to answer like that. + */ + return ret < 0 ? 0 : frames; } static snd_pcm_sframes_t snd_pcm_playback_rewind(struct snd_pcm_substream *substream, @@@ -3135,12 -3130,12 +3135,12 @@@ static ssize_t snd_pcm_writev(struct ki return result; } - static unsigned int snd_pcm_playback_poll(struct file *file, poll_table * wait) + static __poll_t snd_pcm_playback_poll(struct file *file, poll_table * wait) { struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; - unsigned int mask; + __poll_t mask; snd_pcm_uframes_t avail; pcm_file = file->private_data; @@@ -3174,12 -3169,12 +3174,12 @@@ return mask; } - static unsigned int snd_pcm_capture_poll(struct file *file, poll_table * wait) + static __poll_t snd_pcm_capture_poll(struct file *file, poll_table * wait) { struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; - unsigned int mask; + __poll_t mask; snd_pcm_uframes_t avail; pcm_file = file->private_data; diff --combined sound/core/rawmidi.c index f055ca10bbc1,e7e4930732a3..fae21311723f --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@@ -579,14 -579,15 +579,14 @@@ static int snd_rawmidi_info_user(struc return 0; } -int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info) +static int __snd_rawmidi_info_select(struct snd_card *card, + struct snd_rawmidi_info *info) { struct snd_rawmidi *rmidi; struct snd_rawmidi_str *pstr; struct snd_rawmidi_substream *substream; - mutex_lock(&register_mutex); rmidi = snd_rawmidi_search(card, info->device); - mutex_unlock(&register_mutex); if (!rmidi) return -ENXIO; if (info->stream < 0 || info->stream > 1) @@@ -602,16 -603,6 +602,16 @@@ } return -ENXIO; } + +int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info) +{ + int ret; + + mutex_lock(&register_mutex); + ret = __snd_rawmidi_info_select(card, info); + mutex_unlock(&register_mutex); + return ret; +} EXPORT_SYMBOL(snd_rawmidi_info_select); static int snd_rawmidi_info_select_user(struct snd_card *card, @@@ -1366,11 -1357,11 +1366,11 @@@ static ssize_t snd_rawmidi_write(struc return result; } - static unsigned int snd_rawmidi_poll(struct file *file, poll_table * wait) + static __poll_t snd_rawmidi_poll(struct file *file, poll_table * wait) { struct snd_rawmidi_file *rfile; struct snd_rawmidi_runtime *runtime; - unsigned int mask; + __poll_t mask; rfile = file->private_data; if (rfile->input != NULL) { diff --combined virt/kvm/kvm_main.c index 210bf820385a,7b4d46432c85..d6b9370806f8 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@@ -135,11 -135,6 +135,11 @@@ static void kvm_uevent_notify_change(un static unsigned long long kvm_createvm_count; static unsigned long long kvm_active_vms; +__weak void kvm_arch_mmu_notifier_invalidate_range(struct kvm *kvm, + unsigned long start, unsigned long end) +{ +} + bool kvm_is_reserved_pfn(kvm_pfn_t pfn) { if (pfn_valid(pfn)) @@@ -365,9 -360,6 +365,9 @@@ static void kvm_mmu_notifier_invalidate kvm_flush_remote_tlbs(kvm); spin_unlock(&kvm->mmu_lock); + + kvm_arch_mmu_notifier_invalidate_range(kvm, start, end); + srcu_read_unlock(&kvm->srcu, idx); } @@@ -1322,17 -1314,6 +1322,6 @@@ unsigned long kvm_vcpu_gfn_to_hva_prot( return gfn_to_hva_memslot_prot(slot, gfn, writable); } - static int get_user_page_nowait(unsigned long start, int write, - struct page **page) - { - int flags = FOLL_NOWAIT | FOLL_HWPOISON; - - if (write) - flags |= FOLL_WRITE; - - return get_user_pages(start, 1, flags, page, NULL); - } - static inline int check_user_page_hwpoison(unsigned long addr) { int rc, flags = FOLL_HWPOISON | FOLL_WRITE; @@@ -1381,7 -1362,8 +1370,8 @@@ static bool hva_to_pfn_fast(unsigned lo static int hva_to_pfn_slow(unsigned long addr, bool *async, bool write_fault, bool *writable, kvm_pfn_t *pfn) { - struct page *page[1]; + unsigned int flags = FOLL_HWPOISON; + struct page *page; int npages = 0; might_sleep(); @@@ -1389,35 -1371,26 +1379,26 @@@ if (writable) *writable = write_fault; - if (async) { - down_read(&current->mm->mmap_sem); - npages = get_user_page_nowait(addr, write_fault, page); - up_read(&current->mm->mmap_sem); - } else { - unsigned int flags = FOLL_HWPOISON; - - if (write_fault) - flags |= FOLL_WRITE; + if (write_fault) + flags |= FOLL_WRITE; + if (async) + flags |= FOLL_NOWAIT; - npages = get_user_pages_unlocked(addr, 1, page, flags); - } + npages = get_user_pages_unlocked(addr, 1, &page, flags); if (npages != 1) return npages; /* map read fault as writable if possible */ if (unlikely(!write_fault) && writable) { - struct page *wpage[1]; + struct page *wpage; - npages = __get_user_pages_fast(addr, 1, 1, wpage); - if (npages == 1) { + if (__get_user_pages_fast(addr, 1, 1, &wpage) == 1) { *writable = true; - put_page(page[0]); - page[0] = wpage[0]; + put_page(page); + page = wpage; } - - npages = 1; } - *pfn = page_to_pfn(page[0]); + *pfn = page_to_pfn(page); return npages; } -- LinuxNextTracking

1 0

Build check errors found: 2018-01-08
by postmaster＠open-mesh.org 08 Jan '18

08 Jan '18

Name of failed tests ==================== master ------ * checkpatch ./net/batman-adv/main.h * checkpatch ./net/batman-adv/sysfs.c * difference between net-next and batadv master Output of different failed tests ================================ master: checkpatch ./net/batman-adv/main.h ------------------------------------------ WARNING: Statements should start on a tabstop #335: FILE: ./net/batman-adv/main.h:335: + typeof(y)_d2 = (y); \ WARNING: Statements should start on a tabstop #336: FILE: ./net/batman-adv/main.h:336: + typeof(x)_dummy = (_d1 - _d2); \ total: 0 errors, 2 warnings, 0 checks, 395 lines checked master: checkpatch ./net/batman-adv/sysfs.c ------------------------------------------- WARNING: Statements should start on a tabstop #919: FILE: ./net/batman-adv/sysfs.c:919: + char ifname[IFNAMSIZ]) total: 0 errors, 1 warnings, 0 checks, 1251 lines checked master: difference between net-next and batadv master ----------------------------------------------------- netnext/include/uapi/linux/batman_adv.h | 2 +- netnext/net/batman-adv/Kconfig | 2 +- netnext/net/batman-adv/Makefile | 2 +- netnext/net/batman-adv/bat_algo.c | 2 +- netnext/net/batman-adv/bat_algo.h | 2 +- netnext/net/batman-adv/bat_iv_ogm.c | 2 +- netnext/net/batman-adv/bat_iv_ogm.h | 2 +- netnext/net/batman-adv/bat_v.c | 2 +- netnext/net/batman-adv/bat_v.h | 2 +- netnext/net/batman-adv/bat_v_elp.c | 2 +- netnext/net/batman-adv/bat_v_elp.h | 2 +- netnext/net/batman-adv/bat_v_ogm.c | 2 +- netnext/net/batman-adv/bat_v_ogm.h | 2 +- netnext/net/batman-adv/bitarray.c | 2 +- netnext/net/batman-adv/bitarray.h | 2 +- netnext/net/batman-adv/bridge_loop_avoidance.c | 2 +- netnext/net/batman-adv/bridge_loop_avoidance.h | 2 +- netnext/net/batman-adv/debugfs.c | 2 +- netnext/net/batman-adv/debugfs.h | 2 +- netnext/net/batman-adv/distributed-arp-table.c | 2 +- netnext/net/batman-adv/distributed-arp-table.h | 2 +- netnext/net/batman-adv/fragmentation.c | 2 +- netnext/net/batman-adv/fragmentation.h | 2 +- netnext/net/batman-adv/gateway_client.c | 2 +- netnext/net/batman-adv/gateway_client.h | 2 +- netnext/net/batman-adv/gateway_common.c | 2 +- netnext/net/batman-adv/gateway_common.h | 2 +- netnext/net/batman-adv/hard-interface.c | 2 +- netnext/net/batman-adv/hard-interface.h | 2 +- netnext/net/batman-adv/hash.c | 2 +- netnext/net/batman-adv/hash.h | 2 +- netnext/net/batman-adv/icmp_socket.c | 2 +- netnext/net/batman-adv/icmp_socket.h | 2 +- netnext/net/batman-adv/log.c | 2 +- netnext/net/batman-adv/log.h | 2 +- netnext/net/batman-adv/main.c | 2 +- netnext/net/batman-adv/main.h | 2 +- netnext/net/batman-adv/multicast.c | 2 +- netnext/net/batman-adv/multicast.h | 2 +- netnext/net/batman-adv/netlink.c | 2 +- netnext/net/batman-adv/netlink.h | 2 +- netnext/net/batman-adv/network-coding.c | 2 +- netnext/net/batman-adv/network-coding.h | 2 +- netnext/net/batman-adv/originator.c | 2 +- netnext/net/batman-adv/originator.h | 2 +- netnext/net/batman-adv/routing.c | 2 +- netnext/net/batman-adv/routing.h | 2 +- netnext/net/batman-adv/send.c | 2 +- netnext/net/batman-adv/send.h | 2 +- netnext/net/batman-adv/soft-interface.c | 2 +- netnext/net/batman-adv/soft-interface.h | 2 +- netnext/net/batman-adv/sysfs.c | 2 +- netnext/net/batman-adv/sysfs.h | 2 +- netnext/net/batman-adv/tp_meter.c | 2 +- netnext/net/batman-adv/tp_meter.h | 2 +- netnext/net/batman-adv/translation-table.c | 2 +- netnext/net/batman-adv/translation-table.h | 2 +- netnext/net/batman-adv/tvlv.c | 2 +- netnext/net/batman-adv/tvlv.h | 2 +- netnext/net/batman-adv/types.h | 2 +- 60 files changed, 60 insertions(+), 60 deletions(-) Statistics ========== maint ----- Failed tests: 0 Started build tests: 61 Tested Linux versions: 29 Tested configs: 49 master ------ Failed tests: 3 Started build tests: 62 Tested Linux versions: 28 Tested configs: 48

1 0

Build check errors found: 2018-01-07
by postmaster＠open-mesh.org 07 Jan '18

07 Jan '18

Name of failed tests ==================== master ------ * checkpatch ./net/batman-adv/main.h * checkpatch ./net/batman-adv/sysfs.c * difference between net-next and batadv master Output of different failed tests ================================ master: checkpatch ./net/batman-adv/main.h ------------------------------------------ WARNING: Statements should start on a tabstop #335: FILE: ./net/batman-adv/main.h:335: + typeof(y)_d2 = (y); \ WARNING: Statements should start on a tabstop #336: FILE: ./net/batman-adv/main.h:336: + typeof(x)_dummy = (_d1 - _d2); \ total: 0 errors, 2 warnings, 0 checks, 395 lines checked master: checkpatch ./net/batman-adv/sysfs.c ------------------------------------------- WARNING: Statements should start on a tabstop #919: FILE: ./net/batman-adv/sysfs.c:919: + char ifname[IFNAMSIZ]) total: 0 errors, 1 warnings, 0 checks, 1251 lines checked master: difference between net-next and batadv master ----------------------------------------------------- netnext/include/uapi/linux/batman_adv.h | 2 +- netnext/net/batman-adv/Kconfig | 2 +- netnext/net/batman-adv/Makefile | 2 +- netnext/net/batman-adv/bat_algo.c | 2 +- netnext/net/batman-adv/bat_algo.h | 2 +- netnext/net/batman-adv/bat_iv_ogm.c | 2 +- netnext/net/batman-adv/bat_iv_ogm.h | 2 +- netnext/net/batman-adv/bat_v.c | 2 +- netnext/net/batman-adv/bat_v.h | 2 +- netnext/net/batman-adv/bat_v_elp.c | 2 +- netnext/net/batman-adv/bat_v_elp.h | 2 +- netnext/net/batman-adv/bat_v_ogm.c | 2 +- netnext/net/batman-adv/bat_v_ogm.h | 2 +- netnext/net/batman-adv/bitarray.c | 2 +- netnext/net/batman-adv/bitarray.h | 2 +- netnext/net/batman-adv/bridge_loop_avoidance.c | 2 +- netnext/net/batman-adv/bridge_loop_avoidance.h | 2 +- netnext/net/batman-adv/debugfs.c | 2 +- netnext/net/batman-adv/debugfs.h | 2 +- netnext/net/batman-adv/distributed-arp-table.c | 2 +- netnext/net/batman-adv/distributed-arp-table.h | 2 +- netnext/net/batman-adv/fragmentation.c | 2 +- netnext/net/batman-adv/fragmentation.h | 2 +- netnext/net/batman-adv/gateway_client.c | 2 +- netnext/net/batman-adv/gateway_client.h | 2 +- netnext/net/batman-adv/gateway_common.c | 2 +- netnext/net/batman-adv/gateway_common.h | 2 +- netnext/net/batman-adv/hard-interface.c | 2 +- netnext/net/batman-adv/hard-interface.h | 2 +- netnext/net/batman-adv/hash.c | 2 +- netnext/net/batman-adv/hash.h | 2 +- netnext/net/batman-adv/icmp_socket.c | 2 +- netnext/net/batman-adv/icmp_socket.h | 2 +- netnext/net/batman-adv/log.c | 2 +- netnext/net/batman-adv/log.h | 2 +- netnext/net/batman-adv/main.c | 2 +- netnext/net/batman-adv/main.h | 2 +- netnext/net/batman-adv/multicast.c | 2 +- netnext/net/batman-adv/multicast.h | 2 +- netnext/net/batman-adv/netlink.c | 2 +- netnext/net/batman-adv/netlink.h | 2 +- netnext/net/batman-adv/network-coding.c | 2 +- netnext/net/batman-adv/network-coding.h | 2 +- netnext/net/batman-adv/originator.c | 2 +- netnext/net/batman-adv/originator.h | 2 +- netnext/net/batman-adv/routing.c | 2 +- netnext/net/batman-adv/routing.h | 2 +- netnext/net/batman-adv/send.c | 2 +- netnext/net/batman-adv/send.h | 2 +- netnext/net/batman-adv/soft-interface.c | 2 +- netnext/net/batman-adv/soft-interface.h | 2 +- netnext/net/batman-adv/sysfs.c | 2 +- netnext/net/batman-adv/sysfs.h | 2 +- netnext/net/batman-adv/tp_meter.c | 2 +- netnext/net/batman-adv/tp_meter.h | 2 +- netnext/net/batman-adv/translation-table.c | 2 +- netnext/net/batman-adv/translation-table.h | 2 +- netnext/net/batman-adv/tvlv.c | 2 +- netnext/net/batman-adv/tvlv.h | 2 +- netnext/net/batman-adv/types.h | 2 +- 60 files changed, 60 insertions(+), 60 deletions(-) Statistics ========== maint ----- Failed tests: 0 Started build tests: 60 Tested Linux versions: 28 Tested configs: 49 master ------ Failed tests: 3 Started build tests: 65 Tested Linux versions: 30 Tested configs: 55

1 0

Build check errors found: 2018-01-06
by postmaster＠open-mesh.org 06 Jan '18

06 Jan '18

Name of failed tests ==================== master ------ * checkpatch ./net/batman-adv/main.h * checkpatch ./net/batman-adv/sysfs.c * difference between net-next and batadv master Output of different failed tests ================================ master: checkpatch ./net/batman-adv/main.h ------------------------------------------ WARNING: Statements should start on a tabstop #335: FILE: ./net/batman-adv/main.h:335: + typeof(y)_d2 = (y); \ WARNING: Statements should start on a tabstop #336: FILE: ./net/batman-adv/main.h:336: + typeof(x)_dummy = (_d1 - _d2); \ total: 0 errors, 2 warnings, 0 checks, 395 lines checked master: checkpatch ./net/batman-adv/sysfs.c ------------------------------------------- WARNING: Statements should start on a tabstop #919: FILE: ./net/batman-adv/sysfs.c:919: + char ifname[IFNAMSIZ]) total: 0 errors, 1 warnings, 0 checks, 1251 lines checked master: difference between net-next and batadv master ----------------------------------------------------- netnext/include/uapi/linux/batman_adv.h | 2 +- netnext/net/batman-adv/Kconfig | 2 +- netnext/net/batman-adv/Makefile | 2 +- netnext/net/batman-adv/bat_algo.c | 2 +- netnext/net/batman-adv/bat_algo.h | 2 +- netnext/net/batman-adv/bat_iv_ogm.c | 2 +- netnext/net/batman-adv/bat_iv_ogm.h | 2 +- netnext/net/batman-adv/bat_v.c | 2 +- netnext/net/batman-adv/bat_v.h | 2 +- netnext/net/batman-adv/bat_v_elp.c | 2 +- netnext/net/batman-adv/bat_v_elp.h | 2 +- netnext/net/batman-adv/bat_v_ogm.c | 2 +- netnext/net/batman-adv/bat_v_ogm.h | 2 +- netnext/net/batman-adv/bitarray.c | 2 +- netnext/net/batman-adv/bitarray.h | 2 +- netnext/net/batman-adv/bridge_loop_avoidance.c | 2 +- netnext/net/batman-adv/bridge_loop_avoidance.h | 2 +- netnext/net/batman-adv/debugfs.c | 2 +- netnext/net/batman-adv/debugfs.h | 2 +- netnext/net/batman-adv/distributed-arp-table.c | 2 +- netnext/net/batman-adv/distributed-arp-table.h | 2 +- netnext/net/batman-adv/fragmentation.c | 2 +- netnext/net/batman-adv/fragmentation.h | 2 +- netnext/net/batman-adv/gateway_client.c | 2 +- netnext/net/batman-adv/gateway_client.h | 2 +- netnext/net/batman-adv/gateway_common.c | 2 +- netnext/net/batman-adv/gateway_common.h | 2 +- netnext/net/batman-adv/hard-interface.c | 2 +- netnext/net/batman-adv/hard-interface.h | 2 +- netnext/net/batman-adv/hash.c | 2 +- netnext/net/batman-adv/hash.h | 2 +- netnext/net/batman-adv/icmp_socket.c | 2 +- netnext/net/batman-adv/icmp_socket.h | 2 +- netnext/net/batman-adv/log.c | 2 +- netnext/net/batman-adv/log.h | 2 +- netnext/net/batman-adv/main.c | 2 +- netnext/net/batman-adv/main.h | 2 +- netnext/net/batman-adv/multicast.c | 2 +- netnext/net/batman-adv/multicast.h | 2 +- netnext/net/batman-adv/netlink.c | 2 +- netnext/net/batman-adv/netlink.h | 2 +- netnext/net/batman-adv/network-coding.c | 2 +- netnext/net/batman-adv/network-coding.h | 2 +- netnext/net/batman-adv/originator.c | 2 +- netnext/net/batman-adv/originator.h | 2 +- netnext/net/batman-adv/routing.c | 2 +- netnext/net/batman-adv/routing.h | 2 +- netnext/net/batman-adv/send.c | 2 +- netnext/net/batman-adv/send.h | 2 +- netnext/net/batman-adv/soft-interface.c | 2 +- netnext/net/batman-adv/soft-interface.h | 2 +- netnext/net/batman-adv/sysfs.c | 2 +- netnext/net/batman-adv/sysfs.h | 2 +- netnext/net/batman-adv/tp_meter.c | 2 +- netnext/net/batman-adv/tp_meter.h | 2 +- netnext/net/batman-adv/translation-table.c | 2 +- netnext/net/batman-adv/translation-table.h | 2 +- netnext/net/batman-adv/tvlv.c | 2 +- netnext/net/batman-adv/tvlv.h | 2 +- netnext/net/batman-adv/types.h | 2 +- 60 files changed, 60 insertions(+), 60 deletions(-) Statistics ========== maint ----- Failed tests: 0 Started build tests: 66 Tested Linux versions: 29 Tested configs: 53 master ------ Failed tests: 3 Started build tests: 66 Tested Linux versions: 27 Tested configs: 55

1 0

[linux-next] LinuxNextTracking branch, master, updated. next-20180105
by batman＠open-mesh.org 05 Jan '18

05 Jan '18

The following commit has been merged in the master branch: commit 4ce39fb35f9b3848690c12d53864c9faa2339c94 Merge: 7d2a08235fa944c20a475547ddfaf1b14f194160 72deacce011bde7475c90e6ee7d4c7d28c384873 Author: Stephen Rothwell <sfr(a)canb.auug.org.au> Date: Fri Jan 5 11:07:24 2018 +1100 Merge remote-tracking branch 'net-next/master' diff --combined MAINTAINERS index eefe569d91d3,753799d24cd9..9852398e328c --- a/MAINTAINERS +++ b/MAINTAINERS @@@ -321,7 -321,7 +321,7 @@@ F: drivers/acpi/apei ACPI COMPONENT ARCHITECTURE (ACPICA) M: Robert Moore <robert.moore(a)intel.com> -M: Lv Zheng <lv.zheng(a)intel.com> +M: Erik Schmauss <erik.schmauss(a)intel.com> M: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> L: linux-acpi(a)vger.kernel.org L: devel(a)acpica.org @@@ -1255,12 -1255,6 +1255,12 @@@ L: linux-arm-kernel(a)lists.infradead.or S: Supported F: drivers/net/ethernet/cavium/thunder/ +ARM/CIRRUS LOGIC BK3 MACHINE SUPPORT +M: Lukasz Majewski <lukma(a)denx.de> +L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) +S: Maintained +F: arch/arm/mach-ep93xx/ts72xx.c + ARM/CIRRUS LOGIC CLPS711X ARM ARCHITECTURE M: Alexander Shiyan <shc_work(a)mail.ru> L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) @@@ -1589,7 -1583,6 +1589,7 @@@ F: arch/arm/boot/dts/kirkwood F: arch/arm/configs/mvebu_*_defconfig F: arch/arm/mach-mvebu/ F: arch/arm64/boot/dts/marvell/armada* +F: drivers/cpufreq/armada-37xx-cpufreq.c F: drivers/cpufreq/mvebu-cpufreq.c F: drivers/irqchip/irq-armada-370-xp.c F: drivers/irqchip/irq-mvebu-* @@@ -1642,38 -1635,14 +1642,38 @@@ ARM/NEC MOBILEPRO 900/c MACHINE SUPPOR M: Michael Petchkovsky <mkpetch(a)internode.on.net> S: Maintained -ARM/NOMADIK ARCHITECTURE -M: Alessandro Rubini <rubini(a)unipv.it> +ARM/NOMADIK/U300/Ux500 ARCHITECTURES M: Linus Walleij <linus.walleij(a)linaro.org> L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) S: Maintained F: arch/arm/mach-nomadik/ -F: drivers/pinctrl/nomadik/ +F: arch/arm/mach-u300/ +F: arch/arm/mach-ux500/ +F: arch/arm/boot/dts/ste-* +F: drivers/clk/clk-nomadik.c +F: drivers/clk/clk-u300.c +F: drivers/clocksource/clksrc-dbx500-prcmu.c +F: drivers/clocksource/timer-u300.c +F: drivers/dma/coh901318* +F: drivers/dma/ste_dma40* +F: drivers/hwspinlock/u8500_hsem.c F: drivers/i2c/busses/i2c-nomadik.c +F: drivers/i2c/busses/i2c-stu300.c +F: drivers/mfd/ab3100* +F: drivers/mfd/ab8500* +F: drivers/mfd/abx500* +F: drivers/mfd/dbx500* +F: drivers/mfd/db8500* +F: drivers/pinctrl/nomadik/ +F: drivers/pinctrl/pinctrl-coh901* +F: drivers/pinctrl/pinctrl-u300.c +F: drivers/rtc/rtc-ab3100.c +F: drivers/rtc/rtc-ab8500.c +F: drivers/rtc/rtc-coh901331.c +F: drivers/rtc/rtc-pl031.c +F: drivers/watchdog/coh901327_wdt.c +F: Documentation/devicetree/bindings/arm/ste-* +F: Documentation/devicetree/bindings/arm/ux500/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git ARM/NUVOTON W90X900 ARM ARCHITECTURE @@@ -2053,6 -2022,21 +2053,6 @@@ M: Dmitry Eremin-Solenikov <dbaryshkov@ M: Dirk Opfer <dirk(a)opfer-online.de> S: Maintained -ARM/U300 MACHINE SUPPORT -M: Linus Walleij <linus.walleij(a)linaro.org> -L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) -S: Supported -F: arch/arm/mach-u300/ -F: drivers/clocksource/timer-u300.c -F: drivers/i2c/busses/i2c-stu300.c -F: drivers/rtc/rtc-coh901331.c -F: drivers/watchdog/coh901327_wdt.c -F: drivers/dma/coh901318* -F: drivers/mfd/ab3100* -F: drivers/rtc/rtc-ab3100.c -F: drivers/rtc/rtc-coh901331.c -T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson.git - ARM/UNIPHIER ARCHITECTURE M: Masahiro Yamada <yamada.masahiro(a)socionext.com> L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) @@@ -2074,6 -2058,24 +2074,6 @@@ F: drivers/reset/reset-uniphier. F: drivers/tty/serial/8250/8250_uniphier.c N: uniphier -ARM/Ux500 ARM ARCHITECTURE -M: Linus Walleij <linus.walleij(a)linaro.org> -L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) -S: Maintained -F: arch/arm/mach-ux500/ -F: drivers/clocksource/clksrc-dbx500-prcmu.c -F: drivers/dma/ste_dma40* -F: drivers/hwspinlock/u8500_hsem.c -F: drivers/mfd/abx500* -F: drivers/mfd/ab8500* -F: drivers/mfd/dbx500* -F: drivers/mfd/db8500* -F: drivers/pinctrl/nomadik/pinctrl-ab* -F: drivers/pinctrl/nomadik/pinctrl-nomadik* -F: drivers/rtc/rtc-ab8500.c -F: drivers/rtc/rtc-pl031.c -T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson.git - ARM/Ux500 CLOCK FRAMEWORK SUPPORT M: Ulf Hansson <ulf.hansson(a)linaro.org> L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) @@@ -2200,6 -2202,14 +2200,6 @@@ L: linux-leds(a)vger.kernel.or S: Maintained F: drivers/leds/leds-as3645a.c -AS3645A LED FLASH CONTROLLER DRIVER -M: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> -L: linux-media(a)vger.kernel.org -T: git git://linuxtv.org/media_tree.git -S: Maintained -F: drivers/media/i2c/as3645a.c -F: include/media/i2c/as3645a.h - ASAHI KASEI AK8974 DRIVER M: Linus Walleij <linus.walleij(a)linaro.org> L: linux-iio(a)vger.kernel.org @@@ -2252,9 -2262,7 +2252,9 @@@ F: include/linux/async_tx. AT24 EEPROM DRIVER M: Bartosz Golaszewski <brgl(a)bgdev.pl> L: linux-i2c(a)vger.kernel.org +T: git git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git S: Maintained +F: Documentation/devicetree/bindings/eeprom/at24.txt F: drivers/misc/eeprom/at24.c F: include/linux/platform_data/at24.h @@@ -2493,8 -2501,6 +2493,8 @@@ L: linux-arm-kernel(a)lists.infradead.or S: Maintained F: Documentation/devicetree/bindings/arm/axentia.txt F: arch/arm/boot/dts/at91-linea.dtsi +F: arch/arm/boot/dts/at91-natte.dtsi +F: arch/arm/boot/dts/at91-nattis-2-natte-2.dts F: arch/arm/boot/dts/at91-tse850-3.dts AXENTIA ASOC DRIVERS @@@ -2558,6 -2564,7 +2558,7 @@@ S: Maintaine F: Documentation/ABI/testing/sysfs-class-net-batman-adv F: Documentation/ABI/testing/sysfs-class-net-mesh F: Documentation/networking/batman-adv.rst + F: include/uapi/linux/batadv_packet.h F: include/uapi/linux/batman_adv.h F: net/batman-adv/ @@@ -2615,22 -2622,24 +2616,22 @@@ F: fs/bfs F: include/uapi/linux/bfs_fs.h BLACKFIN ARCHITECTURE -M: Steven Miao <realmz6(a)gmail.com> L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) T: git git://git.code.sf.net/p/adi-linux/code W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: arch/blackfin/ BLACKFIN EMAC DRIVER L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: drivers/net/ethernet/adi/ BLACKFIN MEDIA DRIVER -M: Scott Jiang <scott.jiang.linux(a)gmail.com> L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org/ -S: Supported +S: Orphan F: drivers/media/platform/blackfin/ F: drivers/media/i2c/adv7183* F: drivers/media/i2c/vs6624* @@@ -2638,25 -2647,25 +2639,25 @@@ BLACKFIN RTC DRIVER L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: drivers/rtc/rtc-bfin.c BLACKFIN SDH DRIVER L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: drivers/mmc/host/bfin_sdh.c BLACKFIN SERIAL DRIVER L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: drivers/tty/serial/bfin_uart.c BLACKFIN WATCHDOG DRIVER L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: drivers/watchdog/bfin_wdt.c BLINKM RGB LED DRIVER @@@ -2681,7 -2690,6 +2682,6 @@@ F: drivers/mtd/devices/block2mtd. BLUETOOTH DRIVERS M: Marcel Holtmann <marcel(a)holtmann.org> - M: Gustavo Padovan <gustavo(a)padovan.org> M: Johan Hedberg <johan.hedberg(a)gmail.com> L: linux-bluetooth(a)vger.kernel.org W: http://www.bluez.org/ @@@ -2692,7 -2700,6 +2692,6 @@@ F: drivers/bluetooth BLUETOOTH SUBSYSTEM M: Marcel Holtmann <marcel(a)holtmann.org> - M: Gustavo Padovan <gustavo(a)padovan.org> M: Johan Hedberg <johan.hedberg(a)gmail.com> L: linux-bluetooth(a)vger.kernel.org W: http://www.bluez.org/ @@@ -2717,12 -2724,16 +2716,16 @@@ M: Alexei Starovoitov <ast(a)kernel.org M: Daniel Borkmann <daniel(a)iogearbox.net> L: netdev(a)vger.kernel.org L: linux-kernel(a)vger.kernel.org + T: git git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git + T: git git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git S: Supported F: arch/x86/net/bpf_jit* F: Documentation/networking/filter.txt F: Documentation/bpf/ F: include/linux/bpf* F: include/linux/filter.h + F: include/trace/events/bpf.h + F: include/trace/events/xdp.h F: include/uapi/linux/bpf* F: include/uapi/linux/filter.h F: kernel/bpf/ @@@ -2826,8 -2837,6 +2829,8 @@@ S: Maintaine F: arch/arm/mach-bcm/*brcmstb* F: arch/arm/boot/dts/bcm7*.dts* F: drivers/bus/brcmstb_gisb.c +F: arch/arm/mm/cache-b15-rac.c +F: arch/arm/include/asm/hardware/cache-b15-rac.h N: brcmstb BROADCOM BMIPS CPUFREQ DRIVER @@@ -7070,14 -7079,6 +7073,14 @@@ R: Dan Williams <dan.j.williams(a)intel.c S: Odd fixes F: drivers/dma/iop-adma.c +INTEL IPU3 CSI-2 CIO2 DRIVER +M: Yong Zhi <yong.zhi(a)intel.com> +M: Sakari Ailus <sakari.ailus(a)linux.intel.com> +L: linux-media(a)vger.kernel.org +S: Maintained +F: drivers/media/pci/intel/ipu3/ +F: Documentation/media/uapi/v4l/pixfmt-srggb10-ipu3.rst + INTEL IXP4XX QMGR, NPE, ETHERNET and HSS SUPPORT M: Krzysztof Halasa <khalasa(a)piap.pl> S: Maintained @@@ -8683,15 -8684,6 +8686,15 @@@ T: git git://linuxtv.org/media_tree.gi S: Maintained F: drivers/media/dvb-frontends/stv6111* +MEDIA DRIVERS FOR NVIDIA TEGRA - VDE +M: Dmitry Osipenko <digetx(a)gmail.com> +L: linux-media(a)vger.kernel.org +L: linux-tegra(a)vger.kernel.org +T: git git://linuxtv.org/media_tree.git +S: Maintained +F: Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt +F: drivers/staging/media/tegra-vde/ + MEDIA INPUT INFRASTRUCTURE (V4L/DVB) M: Mauro Carvalho Chehab <mchehab(a)s-opensource.com> M: Mauro Carvalho Chehab <mchehab(a)kernel.org> @@@ -8735,6 -8727,13 +8738,13 @@@ L: netdev(a)vger.kernel.or S: Maintained F: drivers/net/ethernet/mediatek/ + MEDIATEK SWITCH DRIVER + M: Sean Wang <sean.wang(a)mediatek.com> + L: netdev(a)vger.kernel.org + S: Maintained + F: drivers/net/dsa/mt7530.* + F: net/dsa/tag_mtk.c + MEDIATEK JPEG DRIVER M: Rick Chang <rick.chang(a)mediatek.com> M: Bin Liu <bin.liu(a)mediatek.com> @@@ -9107,7 -9106,6 +9117,7 @@@ S: Supporte F: Documentation/devicetree/bindings/mips/ F: Documentation/mips/ F: arch/mips/ +F: drivers/platform/mips/ MIPS BOSTON DEVELOPMENT BOARD M: Paul Burton <paul.burton(a)mips.com> @@@ -9135,25 -9133,6 +9145,25 @@@ F: arch/mips/include/asm/mach-loongson3 F: drivers/*/*loongson1* F: drivers/*/*/*loongson1* +MIPS/LOONGSON2 ARCHITECTURE +M: Jiaxun Yang <jiaxun.yang(a)flygoat.com> +L: linux-mips(a)linux-mips.org +S: Maintained +F: arch/mips/loongson64/*{2e/2f}* +F: arch/mips/include/asm/mach-loongson64/ +F: drivers/*/*loongson2* +F: drivers/*/*/*loongson2* + +MIPS/LOONGSON3 ARCHITECTURE +M: Huacai Chen <chenhc(a)lemote.com> +L: linux-mips(a)linux-mips.org +S: Maintained +F: arch/mips/loongson64/ +F: arch/mips/include/asm/mach-loongson64/ +F: drivers/platform/mips/cpu_hwmon.c +F: drivers/*/*loongson3* +F: drivers/*/*/*loongson3* + MIPS RINT INSTRUCTION EMULATION M: Aleksandar Markovic <aleksandar.markovic(a)mips.com> L: linux-mips(a)linux-mips.org @@@ -9631,6 -9610,11 +9641,11 @@@ NETWORKING [WIRELESS L: linux-wireless(a)vger.kernel.org Q: http://patchwork.kernel.org/project/linux-wireless/list/ + NETDEVSIM + M: Jakub Kicinski <jakub.kicinski(a)netronome.com> + S: Maintained + F: drivers/net/netdevsim/* + NETXEN (1/10) GbE SUPPORT M: Manish Chopra <manish.chopra(a)cavium.com> M: Rahul Verma <rahul.verma(a)cavium.com> @@@ -10168,7 -10152,7 +10183,7 @@@ F: drivers/irqchip/irq-ompic. F: drivers/irqchip/irq-or1k-* OPENVSWITCH -M: Pravin Shelar <pshelar(a)nicira.com> +M: Pravin B Shelar <pshelar(a)ovn.org> L: netdev(a)vger.kernel.org L: dev(a)openvswitch.org W: http://openvswitch.org @@@ -10583,12 -10567,8 +10598,12 @@@ T: git git://git.kernel.org/pub/scm/lin S: Supported F: Documentation/devicetree/bindings/pci/ F: Documentation/PCI/ +F: drivers/acpi/pci* F: drivers/pci/ +F: include/asm-generic/pci* F: include/linux/pci* +F: include/uapi/linux/pci* +F: lib/pci* F: arch/x86/pci/ F: arch/x86/kernel/quirks.c @@@ -10927,7 -10907,6 +10942,7 @@@ F: include/linux/pm. F: include/linux/pm_* F: include/linux/powercap.h F: drivers/powercap/ +F: kernel/configs/nopm.config POWER STATE COORDINATION INTERFACE (PSCI) M: Mark Rutland <mark.rutland(a)arm.com> @@@ -12375,14 -12354,6 +12390,14 @@@ T: git git://linuxtv.org/anttip/media_t S: Maintained F: drivers/media/tuners/si2157* +SI2165 MEDIA DRIVER +M: Matthias Schwarzott <zzam(a)gentoo.org> +L: linux-media(a)vger.kernel.org +W: https://linuxtv.org +Q: http://patchwork.linuxtv.org/project/linux-media/list/ +S: Maintained +F: drivers/media/dvb-frontends/si2165* + SI2168 MEDIA DRIVER M: Antti Palosaari <crope(a)iki.fi> L: linux-media(a)vger.kernel.org @@@ -12913,6 -12884,12 +12928,6 @@@ S: Odd Fixe F: Documentation/devicetree/bindings/staging/iio/ F: drivers/staging/iio/ -STAGING - LIRC (LINUX INFRARED REMOTE CONTROL) DRIVERS -M: Jarod Wilson <jarod(a)wilsonet.com> -W: http://www.lirc.org/ -S: Odd Fixes -F: drivers/staging/media/lirc/ - STAGING - LUSTRE PARALLEL FILESYSTEM M: Oleg Drokin <oleg.drokin(a)intel.com> M: Andreas Dilger <andreas.dilger(a)intel.com> @@@ -13294,15 -13271,6 +13309,15 @@@ T: git git://linuxtv.org/anttip/media_t S: Maintained F: drivers/media/tuners/tda18218* +TDA18250 MEDIA DRIVER +M: Olli Salonen <olli.salonen(a)iki.fi> +L: linux-media(a)vger.kernel.org +W: https://linuxtv.org +Q: http://patchwork.linuxtv.org/project/linux-media/list/ +T: git git://linuxtv.org/media_tree.git +S: Maintained +F: drivers/media/tuners/tda18250* + TDA18271 MEDIA DRIVER M: Michael Krufky <mkrufky(a)linuxtv.org> L: linux-media(a)vger.kernel.org @@@ -13540,7 -13508,6 +13555,7 @@@ M: Mika Westerberg <mika.westerberg@lin M: Yehezkel Bernat <yehezkel.bernat(a)intel.com> T: git git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt.git S: Maintained +F: Documentation/admin-guide/thunderbolt.rst F: drivers/thunderbolt/ F: include/linux/thunderbolt.h diff --combined arch/arm/boot/dts/imx25.dtsi index c43cf704b768,fcaff1c66bcb..9445f8e1473c --- a/arch/arm/boot/dts/imx25.dtsi +++ b/arch/arm/boot/dts/imx25.dtsi @@@ -122,7 -122,7 +122,7 @@@ }; can1: can@43f88000 { - compatible = "fsl,imx25-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx25-flexcan"; reg = <0x43f88000 0x4000>; interrupts = <43>; clocks = <&clks 75>, <&clks 75>; @@@ -131,7 -131,7 +131,7 @@@ }; can2: can@43f8c000 { - compatible = "fsl,imx25-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx25-flexcan"; reg = <0x43f8c000 0x4000>; interrupts = <44>; clocks = <&clks 76>, <&clks 76>; @@@ -628,13 -628,11 +628,13 @@@ usbphy0: usb-phy@0 { reg = <0>; compatible = "usb-nop-xceiv"; + #phy-cells = <0>; }; usbphy1: usb-phy@1 { reg = <1>; compatible = "usb-nop-xceiv"; + #phy-cells = <0>; }; }; }; diff --combined arch/arm/boot/dts/imx35.dtsi index f049c692c6b0,1f0e2203b576..e08c0c193767 --- a/arch/arm/boot/dts/imx35.dtsi +++ b/arch/arm/boot/dts/imx35.dtsi @@@ -303,7 -303,7 +303,7 @@@ }; can1: can@53fe4000 { - compatible = "fsl,imx35-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx35-flexcan"; reg = <0x53fe4000 0x1000>; clocks = <&clks 33>, <&clks 33>; clock-names = "ipg", "per"; @@@ -312,7 -312,7 +312,7 @@@ }; can2: can@53fe8000 { - compatible = "fsl,imx35-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx35-flexcan"; reg = <0x53fe8000 0x1000>; clocks = <&clks 34>, <&clks 34>; clock-names = "ipg", "per"; @@@ -402,13 -402,11 +402,13 @@@ usbphy0: usb-phy@0 { reg = <0>; compatible = "usb-nop-xceiv"; + #phy-cells = <0>; }; usbphy1: usb-phy@1 { reg = <1>; compatible = "usb-nop-xceiv"; + #phy-cells = <0>; }; }; }; diff --combined arch/arm/boot/dts/imx53.dtsi index 38b31a37339b,85071ff8c639..1040251f2951 --- a/arch/arm/boot/dts/imx53.dtsi +++ b/arch/arm/boot/dts/imx53.dtsi @@@ -116,28 -116,6 +116,28 @@@ }; }; + pmu { + compatible = "arm,cortex-a8-pmu"; + interrupt-parent = <&tzic>; + interrupts = <77>; + }; + + usbphy0: usbphy-0 { + compatible = "usb-nop-xceiv"; + clocks = <&clks IMX5_CLK_USB_PHY1_GATE>; + clock-names = "main_clk"; + #phy-cells = <0>; + status = "okay"; + }; + + usbphy1: usbphy-1 { + compatible = "usb-nop-xceiv"; + clocks = <&clks IMX5_CLK_USB_PHY2_GATE>; + clock-names = "main_clk"; + #phy-cells = <0>; + status = "okay"; + }; + soc { #address-cells = <1>; #size-cells = <1>; @@@ -321,6 -299,20 +321,6 @@@ reg = <0x53f00000 0x60>; }; - usbphy0: usbphy-0 { - compatible = "usb-nop-xceiv"; - clocks = <&clks IMX5_CLK_USB_PHY1_GATE>; - clock-names = "main_clk"; - status = "okay"; - }; - - usbphy1: usbphy-1 { - compatible = "usb-nop-xceiv"; - clocks = <&clks IMX5_CLK_USB_PHY2_GATE>; - clock-names = "main_clk"; - status = "okay"; - }; - usbotg: usb@53f80000 { compatible = "fsl,imx53-usb", "fsl,imx27-usb"; reg = <0x53f80000 0x0200>; @@@ -441,13 -433,6 +441,13 @@@ clock-names = "ipg", "per"; }; + srtc: rtc@53fa4000 { + compatible = "fsl,imx53-rtc"; + reg = <0x53fa4000 0x4000>; + interrupts = <24>; + clocks = <&clks IMX5_CLK_SRTC_GATE>; + }; + iomuxc: iomuxc@53fa8000 { compatible = "fsl,imx53-iomuxc"; reg = <0x53fa8000 0x4000>; @@@ -551,7 -536,7 +551,7 @@@ }; can1: can@53fc8000 { - compatible = "fsl,imx53-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx53-flexcan"; reg = <0x53fc8000 0x4000>; interrupts = <82>; clocks = <&clks IMX5_CLK_CAN1_IPG_GATE>, @@@ -561,7 -546,7 +561,7 @@@ }; can2: can@53fcc000 { - compatible = "fsl,imx53-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx53-flexcan"; reg = <0x53fcc000 0x4000>; interrupts = <83>; clocks = <&clks IMX5_CLK_CAN2_IPG_GATE>, @@@ -828,5 -813,10 +828,5 @@@ reg = <0xf8000000 0x20000>; clocks = <&clks IMX5_CLK_OCRAM>; }; - - pmu { - compatible = "arm,cortex-a8-pmu"; - interrupts = <77>; - }; }; }; diff --combined arch/arm/boot/dts/ls1021a-qds.dts index bf15dc27ca53,4f211e3c903a..499f41a2c6f0 --- a/arch/arm/boot/dts/ls1021a-qds.dts +++ b/arch/arm/boot/dts/ls1021a-qds.dts @@@ -215,7 -215,7 +215,7 @@@ reg = <0x2a>; VDDA-supply = <&reg_3p3v>; VDDIO-supply = <&reg_3p3v>; - clocks = <&sys_mclk 1>; + clocks = <&sys_mclk>; }; }; }; @@@ -239,11 -239,6 +239,11 @@@ device-width = <1>; }; + nand@2,0 { + compatible = "fsl,ifc-nand"; + reg = <0x2 0x0 0x10000>; + }; + fpga: board-control@3,0 { #address-cells = <1>; #size-cells = <1>; @@@ -336,3 -331,19 +336,19 @@@ &uart1 { status = "okay"; }; + + &can0 { + status = "okay"; + }; + + &can1 { + status = "okay"; + }; + + &can2 { + status = "disabled"; + }; + + &can3 { + status = "disabled"; + }; diff --combined arch/arm/boot/dts/ls1021a-twr.dts index b186c370ad54,7202d9c504be..f0c949d74833 --- a/arch/arm/boot/dts/ls1021a-twr.dts +++ b/arch/arm/boot/dts/ls1021a-twr.dts @@@ -187,7 -187,7 +187,7 @@@ reg = <0x0a>; VDDA-supply = <&reg_3p3v>; VDDIO-supply = <&reg_3p3v>; - clocks = <&sys_mclk 1>; + clocks = <&sys_mclk>; }; }; @@@ -228,10 -228,6 +228,10 @@@ }; }; +&esdhc { + status = "okay"; +}; + &sai1 { status = "okay"; }; @@@ -247,3 -243,19 +247,19 @@@ &uart1 { status = "okay"; }; + + &can0 { + status = "okay"; + }; + + &can1 { + status = "okay"; + }; + + &can2 { + status = "disabled"; + }; + + &can3 { + status = "disabled"; + }; diff --combined arch/arm/boot/dts/ls1021a.dtsi index c5edfa9a68a6,7789031898b0..c31dad98f989 --- a/arch/arm/boot/dts/ls1021a.dtsi +++ b/arch/arm/boot/dts/ls1021a.dtsi @@@ -106,14 -106,6 +106,14 @@@ compatible = "arm,cortex-a7-pmu"; interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>; + interrupt-affinity = <&cpu0>, <&cpu1>; + }; + + reboot { + compatible = "syscon-reboot"; + regmap = <&dcfg>; + offset = <0xb0>; + mask = <0x02>; }; soc { @@@ -162,22 -154,8 +162,22 @@@ big-endian; }; + qspi: quadspi@1550000 { + compatible = "fsl,ls1021a-qspi"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x0 0x1550000 0x0 0x10000>, + <0x0 0x40000000 0x0 0x40000000>; + reg-names = "QuadSPI", "QuadSPI-memory"; + interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>; + clock-names = "qspi_en", "qspi"; + clocks = <&clockgen 4 1>, <&clockgen 4 1>; + big-endian; + status = "disabled"; + }; + esdhc: esdhc@1560000 { - compatible = "fsl,esdhc"; + compatible = "fsl,ls1021a-esdhc", "fsl,esdhc"; reg = <0x0 0x1560000 0x0 0x10000>; interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>; clock-frequency = <0>; @@@ -597,7 -575,7 +597,7 @@@ fsl,tclk-period = <5>; fsl,tmr-prsc = <2>; fsl,tmr-add = <0xaaaaaaab>; - fsl,tmr-fiper1 = <999999990>; + fsl,tmr-fiper1 = <999999995>; fsl,tmr-fiper2 = <99990>; fsl,max-adj = <499999999>; }; @@@ -690,7 -668,7 +690,7 @@@ }; }; - usb@8600000 { + usb2: usb@8600000 { compatible = "fsl-usb2-dr-v2.5", "fsl-usb2-dr"; reg = <0x0 0x8600000 0x0 0x1000>; interrupts = <GIC_SPI 171 IRQ_TYPE_LEVEL_HIGH>; @@@ -698,7 -676,7 +698,7 @@@ phy_type = "ulpi"; }; - usb3@3100000 { + usb3: usb3@3100000 { compatible = "snps,dwc3"; reg = <0x0 0x3100000 0x0 0x10000>; interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>; @@@ -752,5 -730,41 +752,41 @@@ <0000 0 0 3 &gic GIC_SPI 191 IRQ_TYPE_LEVEL_HIGH>, <0000 0 0 4 &gic GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>; }; + + can0: can@2a70000 { + compatible = "fsl,ls1021ar2-flexcan"; + reg = <0x0 0x2a70000 0x0 0x1000>; + interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clockgen 4 1>, <&clockgen 4 1>; + clock-names = "ipg", "per"; + big-endian; + }; + + can1: can@2a80000 { + compatible = "fsl,ls1021ar2-flexcan"; + reg = <0x0 0x2a80000 0x0 0x1000>; + interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clockgen 4 1>, <&clockgen 4 1>; + clock-names = "ipg", "per"; + big-endian; + }; + + can2: can@2a90000 { + compatible = "fsl,ls1021ar2-flexcan"; + reg = <0x0 0x2a90000 0x0 0x1000>; + interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clockgen 4 1>, <&clockgen 4 1>; + clock-names = "ipg", "per"; + big-endian; + }; + + can3: can@2aa0000 { + compatible = "fsl,ls1021ar2-flexcan"; + reg = <0x0 0x2aa0000 0x0 0x1000>; + interrupts = <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clockgen 4 1>, <&clockgen 4 1>; + clock-names = "ipg", "per"; + big-endian; + }; }; }; diff --combined drivers/net/dsa/b53/b53_common.c index 4498ab897d94,561b05089cb6..db830a1141d9 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@@ -1029,8 -1029,7 +1029,7 @@@ int b53_vlan_filtering(struct dsa_switc EXPORT_SYMBOL(b53_vlan_filtering); int b53_vlan_prepare(struct dsa_switch *ds, int port, - const struct switchdev_obj_port_vlan *vlan, - struct switchdev_trans *trans) + const struct switchdev_obj_port_vlan *vlan) { struct b53_device *dev = ds->priv; @@@ -1047,8 -1046,7 +1046,7 @@@ EXPORT_SYMBOL(b53_vlan_prepare); void b53_vlan_add(struct dsa_switch *ds, int port, - const struct switchdev_obj_port_vlan *vlan, - struct switchdev_trans *trans) + const struct switchdev_obj_port_vlan *vlan) { struct b53_device *dev = ds->priv; bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; @@@ -1495,18 -1493,14 +1493,17 @@@ static bool b53_can_enable_brcm_tags(st return false; } - static enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, - int port) + enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port) { struct b53_device *dev = ds->priv; - /* Older models support a different tag format that we do not - * support in net/dsa/tag_brcm.c yet. + /* Older models (5325, 5365) support a different tag format that we do + * not support in net/dsa/tag_brcm.c yet. 539x and 531x5 require managed + * mode to be turned on which means we need to specifically manage ARL + * misses on multicast addresses (TBD). */ - if (is5325(dev) || is5365(dev) || !b53_can_enable_brcm_tags(ds, port)) + if (is5325(dev) || is5365(dev) || is539x(dev) || is531x5(dev) || + !b53_can_enable_brcm_tags(ds, port)) return DSA_TAG_PROTO_NONE; /* Broadcom BCM58xx chips have a flow accelerator on Port 8 @@@ -1517,6 -1511,7 +1514,7 @@@ return DSA_TAG_PROTO_BRCM; } + EXPORT_SYMBOL(b53_get_tag_protocol); int b53_mirror_add(struct dsa_switch *ds, int port, struct dsa_mall_mirror_tc_entry *mirror, bool ingress) diff --combined drivers/net/ethernet/amazon/ena/ena_netdev.c index fbe21a817bd8,a6f283232cb7..6975150d144e --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@@ -75,9 -75,6 +75,9 @@@ static struct workqueue_struct *ena_wq MODULE_DEVICE_TABLE(pci, ena_pci_tbl); static int ena_rss_init_default(struct ena_adapter *adapter); +static void check_for_admin_com_state(struct ena_adapter *adapter); +static void ena_destroy_device(struct ena_adapter *adapter); +static int ena_restore_device(struct ena_adapter *adapter); static void ena_tx_timeout(struct net_device *dev) { @@@ -161,6 -158,8 +161,8 @@@ static void ena_init_io_rings_common(st ring->per_napi_packets = 0; ring->per_napi_bytes = 0; ring->cpu = 0; + ring->first_interrupt = false; + ring->no_interrupt_event_cnt = 0; u64_stats_init(&ring->syncp); } @@@ -1277,6 -1276,9 +1279,9 @@@ static irqreturn_t ena_intr_msix_io(in { struct ena_napi *ena_napi = data; + ena_napi->tx_ring->first_interrupt = true; + ena_napi->rx_ring->first_interrupt = true; + napi_schedule_irqoff(&ena_napi->napi); return IRQ_HANDLED; @@@ -1568,7 -1570,7 +1573,7 @@@ static int ena_rss_configure(struct ena static int ena_up_complete(struct ena_adapter *adapter) { - int rc, i; + int rc; rc = ena_rss_configure(adapter); if (rc) @@@ -1587,6 -1589,17 +1592,6 @@@ ena_napi_enable_all(adapter); - /* Enable completion queues interrupt */ - for (i = 0; i < adapter->num_queues; i++) - ena_unmask_interrupt(&adapter->tx_ring[i], - &adapter->rx_ring[i]); - - /* schedule napi in case we had pending packets - * from the last time we disable napi - */ - for (i = 0; i < adapter->num_queues; i++) - napi_schedule(&adapter->ena_napi[i].napi); - return 0; } @@@ -1723,7 -1736,7 +1728,7 @@@ create_err static int ena_up(struct ena_adapter *adapter) { - int rc; + int rc, i; netdev_dbg(adapter->netdev, "%s\n", __func__); @@@ -1766,17 -1779,6 +1771,17 @@@ set_bit(ENA_FLAG_DEV_UP, &adapter->flags); + /* Enable completion queues interrupt */ + for (i = 0; i < adapter->num_queues; i++) + ena_unmask_interrupt(&adapter->tx_ring[i], + &adapter->rx_ring[i]); + + /* schedule napi in case we had pending packets + * from the last time we disable napi + */ + for (i = 0; i < adapter->num_queues; i++) + napi_schedule(&adapter->ena_napi[i].napi); + return rc; err_up: @@@ -1887,17 -1889,6 +1892,17 @@@ static int ena_close(struct net_device if (test_bit(ENA_FLAG_DEV_UP, &adapter->flags)) ena_down(adapter); + /* Check for device status and issue reset if needed*/ + check_for_admin_com_state(adapter); + if (unlikely(test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags))) { + netif_err(adapter, ifdown, adapter->netdev, + "Destroy failure, restarting device\n"); + ena_dump_stats_to_dmesg(adapter); + /* rtnl lock already obtained in dev_ioctl() layer */ + ena_destroy_device(adapter); + ena_restore_device(adapter); + } + return 0; } @@@ -2558,12 -2549,11 +2563,12 @@@ static void ena_destroy_device(struct e ena_com_set_admin_running_state(ena_dev, false); - ena_close(netdev); + if (test_bit(ENA_FLAG_DEV_UP, &adapter->flags)) + ena_down(adapter); /* Before releasing the ENA resources, a device reset is required. * (to prevent the device from accessing them). - * In case the reset flag is set and the device is up, ena_close + * In case the reset flag is set and the device is up, ena_down() * already perform the reset, so it can be skipped. */ if (!(test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags) && dev_up)) @@@ -2663,8 -2653,32 +2668,32 @@@ static void ena_fw_reset_device(struct rtnl_unlock(); } - static int check_missing_comp_in_queue(struct ena_adapter *adapter, - struct ena_ring *tx_ring) + static int check_for_rx_interrupt_queue(struct ena_adapter *adapter, + struct ena_ring *rx_ring) + { + if (likely(rx_ring->first_interrupt)) + return 0; + + if (ena_com_cq_empty(rx_ring->ena_com_io_cq)) + return 0; + + rx_ring->no_interrupt_event_cnt++; + + if (rx_ring->no_interrupt_event_cnt == ENA_MAX_NO_INTERRUPT_ITERATIONS) { + netif_err(adapter, rx_err, adapter->netdev, + "Potential MSIX issue on Rx side Queue = %d. Reset the device\n", + rx_ring->qid); + adapter->reset_reason = ENA_REGS_RESET_MISS_INTERRUPT; + smp_mb__before_atomic(); + set_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags); + return -EIO; + } + + return 0; + } + + static int check_missing_comp_in_tx_queue(struct ena_adapter *adapter, + struct ena_ring *tx_ring) { struct ena_tx_buffer *tx_buf; unsigned long last_jiffies; @@@ -2674,8 -2688,27 +2703,27 @@@ for (i = 0; i < tx_ring->ring_size; i++) { tx_buf = &tx_ring->tx_buffer_info[i]; last_jiffies = tx_buf->last_jiffies; - if (unlikely(last_jiffies && - time_is_before_jiffies(last_jiffies + adapter->missing_tx_completion_to))) { + + if (last_jiffies == 0) + /* no pending Tx at this location */ + continue; + + if (unlikely(!tx_ring->first_interrupt && time_is_before_jiffies(last_jiffies + + 2 * adapter->missing_tx_completion_to))) { + /* If after graceful period interrupt is still not + * received, we schedule a reset + */ + netif_err(adapter, tx_err, adapter->netdev, + "Potential MSIX issue on Tx side Queue = %d. Reset the device\n", + tx_ring->qid); + adapter->reset_reason = ENA_REGS_RESET_MISS_INTERRUPT; + smp_mb__before_atomic(); + set_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags); + return -EIO; + } + + if (unlikely(time_is_before_jiffies(last_jiffies + + adapter->missing_tx_completion_to))) { if (!tx_buf->print_once) netif_notice(adapter, tx_err, adapter->netdev, "Found a Tx that wasn't completed on time, qid %d, index %d.\n", @@@ -2704,9 -2737,10 +2752,10 @@@ return rc; } - static void check_for_missing_tx_completions(struct ena_adapter *adapter) + static void check_for_missing_completions(struct ena_adapter *adapter) { struct ena_ring *tx_ring; + struct ena_ring *rx_ring; int i, budget, rc; /* Make sure the driver doesn't turn the device in other process */ @@@ -2725,8 -2759,13 +2774,13 @@@ for (i = adapter->last_monitored_tx_qid; i < adapter->num_queues; i++) { tx_ring = &adapter->tx_ring[i]; + rx_ring = &adapter->rx_ring[i]; + + rc = check_missing_comp_in_tx_queue(adapter, tx_ring); + if (unlikely(rc)) + return; - rc = check_missing_comp_in_queue(adapter, tx_ring); + rc = check_for_rx_interrupt_queue(adapter, rx_ring); if (unlikely(rc)) return; @@@ -2885,7 -2924,7 +2939,7 @@@ static void ena_timer_service(struct ti check_for_admin_com_state(adapter); - check_for_missing_tx_completions(adapter); + check_for_missing_completions(adapter); check_for_empty_rx_ring(adapter); diff --combined drivers/net/ethernet/broadcom/tg3.c index 86ff8b49ee57,a77ee2f8fb8d..2bd77d9990f2 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@@ -3227,7 -3227,7 +3227,7 @@@ static int tg3_nvram_read_using_eeprom( return 0; } - #define NVRAM_CMD_TIMEOUT 5000 + #define NVRAM_CMD_TIMEOUT 10000 static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd) { @@@ -3744,7 -3744,7 +3744,7 @@@ static int tg3_load_firmware_cpu(struc } do { - u32 *fw_data = (u32 *)(fw_hdr + 1); + __be32 *fw_data = (__be32 *)(fw_hdr + 1); for (i = 0; i < tg3_fw_data_len(tp, fw_hdr); i++) write_op(tp, cpu_scratch_base + (be32_to_cpu(fw_hdr->base_addr) & 0xffff) + @@@ -14789,7 -14789,7 +14789,7 @@@ static void tg3_get_5717_nvram_info(str static void tg3_get_5720_nvram_info(struct tg3 *tp) { - u32 nvcfg1, nvmpinstrp; + u32 nvcfg1, nvmpinstrp, nv_status; nvcfg1 = tr32(NVRAM_CFG1); nvmpinstrp = nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK; @@@ -14801,6 -14801,23 +14801,23 @@@ } switch (nvmpinstrp) { + case FLASH_5762_MX25L_100: + case FLASH_5762_MX25L_200: + case FLASH_5762_MX25L_400: + case FLASH_5762_MX25L_800: + case FLASH_5762_MX25L_160_320: + tp->nvram_pagesize = 4096; + tp->nvram_jedecnum = JEDEC_MACRONIX; + tg3_flag_set(tp, NVRAM_BUFFERED); + tg3_flag_set(tp, NO_NVRAM_ADDR_TRANS); + tg3_flag_set(tp, FLASH); + nv_status = tr32(NVRAM_AUTOSENSE_STATUS); + tp->nvram_size = + (1 << (nv_status >> AUTOSENSE_DEVID & + AUTOSENSE_DEVID_MASK) + << AUTOSENSE_SIZE_IN_MB); + return; + case FLASH_5762_EEPROM_HD: nvmpinstrp = FLASH_5720_EEPROM_HD; break; diff --combined drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index d8424ed16c33,69d0b64e6986..1ff71825868c --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@@ -77,7 -77,8 +77,8 @@@ enum MEM_EDC1, MEM_MC, MEM_MC0 = MEM_MC, - MEM_MC1 + MEM_MC1, + MEM_HMA, }; enum { @@@ -344,6 -345,7 +345,6 @@@ struct adapter_params unsigned int sf_size; /* serial flash size in bytes */ unsigned int sf_nsec; /* # of flash sectors */ - unsigned int sf_fw_start; /* start of FW image in flash */ unsigned int fw_vers; /* firmware version */ unsigned int bs_vers; /* bootstrap version */ @@@ -1422,6 -1424,21 +1423,21 @@@ static inline void init_rspq(struct ada q->size = size; } + /** + * t4_is_inserted_mod_type - is a plugged in Firmware Module Type + * @fw_mod_type: the Firmware Mofule Type + * + * Return whether the Firmware Module Type represents a real Transceiver + * Module/Cable Module Type which has been inserted. + */ + static inline bool t4_is_inserted_mod_type(unsigned int fw_mod_type) + { + return (fw_mod_type != FW_PORT_MOD_TYPE_NONE && + fw_mod_type != FW_PORT_MOD_TYPE_NOTSUPPORTED && + fw_mod_type != FW_PORT_MOD_TYPE_UNKNOWN && + fw_mod_type != FW_PORT_MOD_TYPE_ERROR); + } + void t4_write_indirect(struct adapter *adap, unsigned int addr_reg, unsigned int data_reg, const u32 *vals, unsigned int nregs, unsigned int start_idx); @@@ -1511,6 -1528,7 +1527,7 @@@ int t4_init_portinfo(struct port_info * int port, int pf, int vf, u8 mac[]); int t4_port_init(struct adapter *adap, int mbox, int pf, int vf); void t4_fatal_err(struct adapter *adapter); + unsigned int t4_chip_rss_size(struct adapter *adapter); int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid, int start, int n, const u16 *rspq, unsigned int nrspq); int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode, @@@ -1652,7 -1670,7 +1669,7 @@@ int t4_ctrl_eq_free(struct adapter *ada unsigned int vf, unsigned int eqid); int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, unsigned int vf, unsigned int eqid); - int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox); + int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox, int ctxt_type); void t4_handle_get_port_info(struct port_info *pi, const __be64 *rpl); int t4_update_port_info(struct port_info *pi); int t4_get_link_params(struct port_info *pi, unsigned int *link_okp, @@@ -1695,6 -1713,9 +1712,9 @@@ void t4_uld_mem_free(struct adapter *ad int t4_uld_mem_alloc(struct adapter *adap); void t4_uld_clean_up(struct adapter *adap); void t4_register_netevent_notifier(void); + int t4_i2c_rd(struct adapter *adap, unsigned int mbox, int port, + unsigned int devid, unsigned int offset, + unsigned int len, u8 *buf); void free_rspq_fl(struct adapter *adap, struct sge_rspq *rq, struct sge_fl *fl); void free_tx_desc(struct adapter *adap, struct sge_txq *q, unsigned int n, bool unmap); diff --combined drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 375ef86a84da,f2a60e01d563..0e9f64a46ac5 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@@ -524,11 -524,14 +524,14 @@@ int t4_memory_rw(struct adapter *adap, * MEM_EDC1 = 1 * MEM_MC = 2 -- MEM_MC for chips with only 1 memory controller * MEM_MC1 = 3 -- for chips with 2 memory controllers (e.g. T5) + * MEM_HMA = 4 */ edc_size = EDRAM0_SIZE_G(t4_read_reg(adap, MA_EDRAM0_BAR_A)); - if (mtype != MEM_MC1) + if (mtype == MEM_HMA) { + memoffset = 2 * (edc_size * 1024 * 1024); + } else if (mtype != MEM_MC1) { memoffset = (mtype * (edc_size * 1024 * 1024)); - else { + } else { mc_size = EXT_MEM0_SIZE_G(t4_read_reg(adap, MA_EXT_MEMORY0_BAR_A)); memoffset = (MEM_MC0 * edc_size + mc_size) * 1024 * 1024; @@@ -2844,6 -2847,8 +2847,6 @@@ enum SF_RD_DATA_FAST = 0xb, /* read flash */ SF_RD_ID = 0x9f, /* read ID */ SF_ERASE_SECTOR = 0xd8, /* erase sector */ - - FW_MAX_SIZE = 16 * SF_SEC_SIZE, }; /** @@@ -3556,9 -3561,8 +3559,9 @@@ int t4_load_fw(struct adapter *adap, co const __be32 *p = (const __be32 *)fw_data; const struct fw_hdr *hdr = (const struct fw_hdr *)fw_data; unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec; - unsigned int fw_img_start = adap->params.sf_fw_start; - unsigned int fw_start_sec = fw_img_start / sf_sec_size; + unsigned int fw_start_sec = FLASH_FW_START_SEC; + unsigned int fw_size = FLASH_FW_MAX_SIZE; + unsigned int fw_start = FLASH_FW_START; if (!size) { dev_err(adap->pdev_dev, "FW image has no data\n"); @@@ -3574,9 -3578,9 +3577,9 @@@ "FW image size differs from size in FW header\n"); return -EINVAL; } - if (size > FW_MAX_SIZE) { + if (size > fw_size) { dev_err(adap->pdev_dev, "FW image too large, max is %u bytes\n", - FW_MAX_SIZE); + fw_size); return -EFBIG; } if (!t4_fw_matches_chip(adap, hdr)) @@@ -3603,11 -3607,11 +3606,11 @@@ */ memcpy(first_page, fw_data, SF_PAGE_SIZE); ((struct fw_hdr *)first_page)->fw_ver = cpu_to_be32(0xffffffff); - ret = t4_write_flash(adap, fw_img_start, SF_PAGE_SIZE, first_page); + ret = t4_write_flash(adap, fw_start, SF_PAGE_SIZE, first_page); if (ret) goto out; - addr = fw_img_start; + addr = fw_start; for (size -= SF_PAGE_SIZE; size; size -= SF_PAGE_SIZE) { addr += SF_PAGE_SIZE; fw_data += SF_PAGE_SIZE; @@@ -3617,7 -3621,7 +3620,7 @@@ } ret = t4_write_flash(adap, - fw_img_start + offsetof(struct fw_hdr, fw_ver), + fw_start + offsetof(struct fw_hdr, fw_ver), sizeof(hdr->fw_ver), (const u8 *)&hdr->fw_ver); out: if (ret) @@@ -4923,6 -4927,14 +4926,14 @@@ void t4_intr_disable(struct adapter *ad t4_set_reg_field(adapter, PL_INT_MAP0_A, 1 << pf, 0); } + unsigned int t4_chip_rss_size(struct adapter *adap) + { + if (CHELSIO_CHIP_VERSION(adap->params.chip) <= CHELSIO_T5) + return RSS_NENTRIES; + else + return T6_RSS_NENTRIES; + } + /** * t4_config_rss_range - configure a portion of the RSS mapping table * @adapter: the adapter @@@ -5061,10 -5073,11 +5072,11 @@@ static int rd_rss_row(struct adapter *a */ int t4_read_rss(struct adapter *adapter, u16 *map) { + int i, ret, nentries; u32 val; - int i, ret; - for (i = 0; i < RSS_NENTRIES / 2; ++i) { + nentries = t4_chip_rss_size(adapter); + for (i = 0; i < nentries / 2; ++i) { ret = rd_rss_row(adapter, i, &val); if (ret) return ret; @@@ -6071,6 -6084,7 +6083,7 @@@ const char *t4_get_port_type_descriptio "CR2_QSFP", "SFP28", "KR_SFP28", + "KR_XLAUI" }; if (port_type < ARRAY_SIZE(port_type_description)) @@@ -6526,18 -6540,21 +6539,21 @@@ void t4_sge_decode_idma_state(struct ad * t4_sge_ctxt_flush - flush the SGE context cache * @adap: the adapter * @mbox: mailbox to use for the FW command + * @ctx_type: Egress or Ingress * * Issues a FW command through the given mailbox to flush the * SGE context cache. */ - int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox) + int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox, int ctxt_type) { int ret; u32 ldst_addrspace; struct fw_ldst_cmd c; memset(&c, 0, sizeof(c)); - ldst_addrspace = FW_LDST_CMD_ADDRSPACE_V(FW_LDST_ADDRSPC_SGE_EGRC); + ldst_addrspace = FW_LDST_CMD_ADDRSPACE_V(ctxt_type == CTXT_EGRESS ? + FW_LDST_ADDRSPC_SGE_EGRC : + FW_LDST_ADDRSPC_SGE_INGC); c.op_to_addrspace = cpu_to_be32(FW_CMD_OP_V(FW_LDST_CMD) | FW_CMD_REQUEST_F | FW_CMD_READ_F | ldst_addrspace); @@@ -8491,22 -8508,6 +8507,6 @@@ found return 0; } - static void set_pcie_completion_timeout(struct adapter *adapter, u8 range) - { - u16 val; - u32 pcie_cap; - - pcie_cap = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP); - if (pcie_cap) { - pci_read_config_word(adapter->pdev, - pcie_cap + PCI_EXP_DEVCTL2, &val); - val &= ~PCI_EXP_DEVCTL2_COMP_TIMEOUT; - val |= range; - pci_write_config_word(adapter->pdev, - pcie_cap + PCI_EXP_DEVCTL2, val); - } - } - /** * t4_prep_adapter - prepare SW and HW for operation * @adapter: the adapter @@@ -8592,8 -8593,9 +8592,9 @@@ int t4_prep_adapter(struct adapter *ada adapter->params.portvec = 1; adapter->params.vpd.cclk = 50000; - /* Set pci completion timeout value to 4 seconds. */ - set_pcie_completion_timeout(adapter, 0xd); + /* Set PCIe completion timeout to 4 seconds. */ + pcie_capability_clear_and_set_word(adapter->pdev, PCI_EXP_DEVCTL2, + PCI_EXP_DEVCTL2_COMP_TIMEOUT, 0xd); return 0; } @@@ -9736,3 -9738,59 +9737,59 @@@ int t4_sched_params(struct adapter *ada return t4_wr_mbox_meat(adapter, adapter->mbox, &cmd, sizeof(cmd), NULL, 1); } + + /** + * t4_i2c_rd - read I2C data from adapter + * @adap: the adapter + * @port: Port number if per-port device; <0 if not + * @devid: per-port device ID or absolute device ID + * @offset: byte offset into device I2C space + * @len: byte length of I2C space data + * @buf: buffer in which to return I2C data + * + * Reads the I2C data from the indicated device and location. + */ + int t4_i2c_rd(struct adapter *adap, unsigned int mbox, int port, + unsigned int devid, unsigned int offset, + unsigned int len, u8 *buf) + { + struct fw_ldst_cmd ldst_cmd, ldst_rpl; + unsigned int i2c_max = sizeof(ldst_cmd.u.i2c.data); + int ret = 0; + + if (len > I2C_PAGE_SIZE) + return -EINVAL; + + /* Dont allow reads that spans multiple pages */ + if (offset < I2C_PAGE_SIZE && offset + len > I2C_PAGE_SIZE) + return -EINVAL; + + memset(&ldst_cmd, 0, sizeof(ldst_cmd)); + ldst_cmd.op_to_addrspace = + cpu_to_be32(FW_CMD_OP_V(FW_LDST_CMD) | + FW_CMD_REQUEST_F | + FW_CMD_READ_F | + FW_LDST_CMD_ADDRSPACE_V(FW_LDST_ADDRSPC_I2C)); + ldst_cmd.cycles_to_len16 = cpu_to_be32(FW_LEN16(ldst_cmd)); + ldst_cmd.u.i2c.pid = (port < 0 ? 0xff : port); + ldst_cmd.u.i2c.did = devid; + + while (len > 0) { + unsigned int i2c_len = (len < i2c_max) ? len : i2c_max; + + ldst_cmd.u.i2c.boffset = offset; + ldst_cmd.u.i2c.blen = i2c_len; + + ret = t4_wr_mbox(adap, mbox, &ldst_cmd, sizeof(ldst_cmd), + &ldst_rpl); + if (ret) + break; + + memcpy(buf, ldst_rpl.u.i2c.data, i2c_len); + offset += i2c_len; + buf += i2c_len; + len -= i2c_len; + } + + return ret; + } diff --combined drivers/net/ethernet/freescale/fec_main.c index 19f198e22e15,e17d10b8b041..feed3836685c --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@@ -1868,6 -1868,8 +1868,8 @@@ static int fec_enet_clk_enable(struct n ret = clk_prepare_enable(fep->clk_ref); if (ret) goto failed_clk_ref; + + phy_reset_after_clk_enable(ndev->phydev); } else { clk_disable_unprepare(fep->clk_ahb); clk_disable_unprepare(fep->clk_enet_out); @@@ -2840,6 -2842,7 +2842,7 @@@ fec_enet_open(struct net_device *ndev { struct fec_enet_private *fep = netdev_priv(ndev); int ret; + bool reset_again; ret = pm_runtime_get_sync(&fep->pdev->dev); if (ret < 0) @@@ -2850,6 -2853,17 +2853,17 @@@ if (ret) goto clk_enable; + /* During the first fec_enet_open call the PHY isn't probed at this + * point. Therefore the phy_reset_after_clk_enable() call within + * fec_enet_clk_enable() fails. As we need this reset in order to be + * sure the PHY is working correctly we check if we need to reset again + * later when the PHY is probed + */ + if (ndev->phydev && ndev->phydev->drv) + reset_again = false; + else + reset_again = true; + /* I should reset the ring buffers here, but I don't yet know * a simple way to do that. */ @@@ -2866,6 -2880,12 +2880,12 @@@ if (ret) goto err_enet_mii_probe; + /* Call phy_reset_after_clk_enable() again if it failed during + * phy_reset_after_clk_enable() before because the PHY wasn't probed. + */ + if (reset_again) + phy_reset_after_clk_enable(ndev->phydev); + if (fep->quirks & FEC_QUIRK_ERR006687) imx6q_cpuidle_fec_irqs_used(); @@@ -3469,10 -3489,6 +3489,10 @@@ fec_probe(struct platform_device *pdev goto failed_regulator; } } else { + if (PTR_ERR(fep->reg_phy) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto failed_regulator; + } fep->reg_phy = NULL; } @@@ -3560,7 -3576,6 +3580,7 @@@ failed_phy of_node_put(phy_node); failed_ioremap: free_netdev(ndev); + dev_id--; return ret; } diff --combined drivers/net/ethernet/mellanox/mlxsw/spectrum.c index c3837ca7a705,d373df7b11bd..aa96cc6a0fa6 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@@ -1571,14 -1571,11 +1571,11 @@@ mlxsw_sp_port_add_cls_matchall_mirror(s const struct tc_action *a, bool ingress) { - struct net *net = dev_net(mlxsw_sp_port->dev); enum mlxsw_sp_span_type span_type; struct mlxsw_sp_port *to_port; struct net_device *to_dev; - int ifindex; - ifindex = tcf_mirred_ifindex(a); - to_dev = __dev_get_by_index(net, ifindex); + to_dev = tcf_mirred_dev(a); if (!to_dev) { netdev_err(mlxsw_sp_port->dev, "Could not find requested device\n"); return -EINVAL; @@@ -1838,6 -1835,54 +1835,54 @@@ static int mlxsw_sp_setup_tc(struct net } } + + static int mlxsw_sp_feature_hw_tc(struct net_device *dev, bool enable) + { + struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); + + if (!enable && (mlxsw_sp_port->acl_rule_count || + !list_empty(&mlxsw_sp_port->mall_tc_list))) { + netdev_err(dev, "Active offloaded tc filters, can't turn hw_tc_offload off\n"); + return -EINVAL; + } + return 0; + } + + typedef int (*mlxsw_sp_feature_handler)(struct net_device *dev, bool enable); + + static int mlxsw_sp_handle_feature(struct net_device *dev, + netdev_features_t wanted_features, + netdev_features_t feature, + mlxsw_sp_feature_handler feature_handler) + { + netdev_features_t changes = wanted_features ^ dev->features; + bool enable = !!(wanted_features & feature); + int err; + + if (!(changes & feature)) + return 0; + + err = feature_handler(dev, enable); + if (err) { + netdev_err(dev, "%s feature %pNF failed, err %d\n", + enable ? "Enable" : "Disable", &feature, err); + return err; + } + + if (enable) + dev->features |= feature; + else + dev->features &= ~feature; + + return 0; + } + static int mlxsw_sp_set_features(struct net_device *dev, + netdev_features_t features) + { + return mlxsw_sp_handle_feature(dev, features, NETIF_F_HW_TC, + mlxsw_sp_feature_hw_tc); + } + static const struct net_device_ops mlxsw_sp_port_netdev_ops = { .ndo_open = mlxsw_sp_port_open, .ndo_stop = mlxsw_sp_port_stop, @@@ -1852,6 -1897,7 +1897,7 @@@ .ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid, .ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid, .ndo_get_phys_port_name = mlxsw_sp_port_get_phys_port_name, + .ndo_set_features = mlxsw_sp_set_features, }; static void mlxsw_sp_port_get_drvinfo(struct net_device *dev, @@@ -4376,10 -4422,7 +4422,10 @@@ static int mlxsw_sp_netdevice_port_uppe } if (!info->linking) break; - if (netdev_has_any_upper_dev(upper_dev)) { + if (netdev_has_any_upper_dev(upper_dev) && + (!netif_is_bridge_master(upper_dev) || + !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, + upper_dev))) { NL_SET_ERR_MSG(extack, "spectrum: Enslaving a port to a device that already has an upper device is not supported"); return -EINVAL; @@@ -4507,7 -4550,6 +4553,7 @@@ static int mlxsw_sp_netdevice_port_vlan u16 vid) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct netdev_notifier_changeupper_info *info = ptr; struct netlink_ext_ack *extack; struct net_device *upper_dev; @@@ -4524,10 -4566,7 +4570,10 @@@ } if (!info->linking) break; - if (netdev_has_any_upper_dev(upper_dev)) { + if (netdev_has_any_upper_dev(upper_dev) && + (!netif_is_bridge_master(upper_dev) || + !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, + upper_dev))) { NL_SET_ERR_MSG(extack, "spectrum: Enslaving a port to a device that already has an upper device is not supported"); return -EINVAL; } diff --combined drivers/net/ethernet/mellanox/mlxsw/spectrum.h index 05ce1befd9b3,a0adcd886589..346b8b688b6f --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@@ -270,6 -270,7 +270,7 @@@ struct mlxsw_sp_port struct mlxsw_sp_port_sample *sample; struct list_head vlans_list; struct mlxsw_sp_qdisc root_qdisc; + unsigned acl_rule_count; }; static inline bool @@@ -365,8 -366,6 +366,8 @@@ int mlxsw_sp_port_bridge_join(struct ml void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *brport_dev, struct net_device *br_dev); +bool mlxsw_sp_bridge_device_is_offloaded(const struct mlxsw_sp *mlxsw_sp, + const struct net_device *br_dev); /* spectrum.c */ int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port, diff --combined drivers/net/ethernet/renesas/sh_eth.c index 1bdd67a8a869,d47bbbb22e7c..ef6212baaeaa --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@@ -3225,29 -3225,10 +3225,29 @@@ static int sh_eth_drv_probe(struct plat /* ioremap the TSU registers */ if (mdp->cd->tsu) { struct resource *rtsu; + rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1); - mdp->tsu_addr = devm_ioremap_resource(&pdev->dev, rtsu); - if (IS_ERR(mdp->tsu_addr)) { - ret = PTR_ERR(mdp->tsu_addr); + if (!rtsu) { + dev_err(&pdev->dev, "no TSU resource\n"); + ret = -ENODEV; + goto out_release; + } + /* We can only request the TSU region for the first port + * of the two sharing this TSU for the probe to succeed... + */ + if (devno % 2 == 0 && + !devm_request_mem_region(&pdev->dev, rtsu->start, + resource_size(rtsu), + dev_name(&pdev->dev))) { + dev_err(&pdev->dev, "can't request TSU resource.\n"); + ret = -EBUSY; + goto out_release; + } + mdp->tsu_addr = devm_ioremap(&pdev->dev, rtsu->start, + resource_size(rtsu)); + if (!mdp->tsu_addr) { + dev_err(&pdev->dev, "TSU region ioremap() failed.\n"); + ret = -ENOMEM; goto out_release; } mdp->port = devno % 2; @@@ -3301,8 -3282,7 +3301,7 @@@ out_napi_del out_release: /* net_dev free */ - if (ndev) - free_netdev(ndev); + free_netdev(ndev); pm_runtime_put(&pdev->dev); pm_runtime_disable(&pdev->dev); diff --combined drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c index 5bbcaf8298f6,2fd8456999f6..b419229d7457 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c @@@ -241,13 -241,12 +241,13 @@@ static int dwmac4_rx_check_timestamp(vo u32 own, ctxt; int ret = 1; - own = p->des3 & RDES3_OWN; - ctxt = ((p->des3 & RDES3_CONTEXT_DESCRIPTOR) + own = le32_to_cpu(p->des3) & RDES3_OWN; + ctxt = ((le32_to_cpu(p->des3) & RDES3_CONTEXT_DESCRIPTOR) >> RDES3_CONTEXT_DESCRIPTOR_SHIFT); if (likely(!own && ctxt)) { - if ((p->des0 == 0xffffffff) && (p->des1 == 0xffffffff)) + if ((p->des0 == cpu_to_le32(0xffffffff)) && + (p->des1 == cpu_to_le32(0xffffffff))) /* Corrupted value */ ret = -EINVAL; else @@@ -266,7 -265,7 +266,7 @@@ static int dwmac4_wrback_get_rx_timesta int ret = -EINVAL; /* Get the status from normal w/b descriptor */ - if (likely(p->des3 & TDES3_RS1V)) { + if (likely(p->des3 & cpu_to_le32(TDES3_RS1V))) { if (likely(le32_to_cpu(p->des1) & RDES1_TIMESTAMP_AVAILABLE)) { int i = 0; @@@ -407,7 -406,7 +407,7 @@@ static void dwmac4_display_ring(void *h pr_info("%s descriptor ring:\n", rx ? "RX" : "TX"); for (i = 0; i < size; i++) { - pr_info("%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n", + pr_info("%03d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n", i, (unsigned int)virt_to_phys(p), le32_to_cpu(p->des0), le32_to_cpu(p->des1), le32_to_cpu(p->des2), le32_to_cpu(p->des3)); diff --combined drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 323464576fc0,d9c98fd810bb..cf0e16d1a068 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@@ -364,15 -364,9 +364,15 @@@ static void stmmac_eee_ctrl_timer(struc bool stmmac_eee_init(struct stmmac_priv *priv) { struct net_device *ndev = priv->dev; + int interface = priv->plat->interface; unsigned long flags; bool ret = false; + if ((interface != PHY_INTERFACE_MODE_MII) && + (interface != PHY_INTERFACE_MODE_GMII) && + !phy_interface_mode_is_rgmii(interface)) + goto out; + /* Using PCS we cannot dial with the phy registers at this stage * so we do not support extra feature like EEE. */ @@@ -2003,22 -1997,60 +2003,60 @@@ static void stmmac_set_dma_operation_mo static void stmmac_dma_interrupt(struct stmmac_priv *priv) { u32 tx_channel_count = priv->plat->tx_queues_to_use; - int status; + u32 rx_channel_count = priv->plat->rx_queues_to_use; + u32 channels_to_check = tx_channel_count > rx_channel_count ? + tx_channel_count : rx_channel_count; u32 chan; + bool poll_scheduled = false; + int status[channels_to_check]; + + /* Each DMA channel can be used for rx and tx simultaneously, yet + * napi_struct is embedded in struct stmmac_rx_queue rather than in a + * stmmac_channel struct. + * Because of this, stmmac_poll currently checks (and possibly wakes) + * all tx queues rather than just a single tx queue. + */ + for (chan = 0; chan < channels_to_check; chan++) + status[chan] = priv->hw->dma->dma_interrupt(priv->ioaddr, + &priv->xstats, + chan); - for (chan = 0; chan < tx_channel_count; chan++) { - struct stmmac_rx_queue *rx_q = &priv->rx_queue[chan]; + for (chan = 0; chan < rx_channel_count; chan++) { + if (likely(status[chan] & handle_rx)) { + struct stmmac_rx_queue *rx_q = &priv->rx_queue[chan]; - status = priv->hw->dma->dma_interrupt(priv->ioaddr, - &priv->xstats, chan); - if (likely((status & handle_rx)) || (status & handle_tx)) { if (likely(napi_schedule_prep(&rx_q->napi))) { stmmac_disable_dma_irq(priv, chan); __napi_schedule(&rx_q->napi); + poll_scheduled = true; } } + } - if (unlikely(status & tx_hard_error_bump_tc)) { + /* If we scheduled poll, we already know that tx queues will be checked. + * If we didn't schedule poll, see if any DMA channel (used by tx) has a + * completed transmission, if so, call stmmac_poll (once). + */ + if (!poll_scheduled) { + for (chan = 0; chan < tx_channel_count; chan++) { + if (status[chan] & handle_tx) { + /* It doesn't matter what rx queue we choose + * here. We use 0 since it always exists. + */ + struct stmmac_rx_queue *rx_q = + &priv->rx_queue[0]; + + if (likely(napi_schedule_prep(&rx_q->napi))) { + stmmac_disable_dma_irq(priv, chan); + __napi_schedule(&rx_q->napi); + } + break; + } + } + } + + for (chan = 0; chan < tx_channel_count; chan++) { + if (unlikely(status[chan] & tx_hard_error_bump_tc)) { /* Try to bump up the dma threshold on this failure */ if (unlikely(priv->xstats.threshold != SF_DMA_MODE) && (tc <= 256)) { @@@ -2035,7 -2067,7 +2073,7 @@@ chan); priv->xstats.threshold = tc; } - } else if (unlikely(status == tx_hard_error)) { + } else if (unlikely(status[chan] == tx_hard_error)) { stmmac_tx_err(priv, chan); } } @@@ -2539,7 -2571,7 +2577,7 @@@ static int stmmac_hw_setup(struct net_d } if (priv->hw->pcs && priv->hw->mac->pcs_ctrl_ane) - priv->hw->mac->pcs_ctrl_ane(priv->hw, 1, priv->hw->ps, 0); + priv->hw->mac->pcs_ctrl_ane(priv->ioaddr, 1, priv->hw->ps, 0); /* set TX and RX rings length */ stmmac_set_rings_length(priv); @@@ -3404,9 -3436,8 +3442,8 @@@ static int stmmac_rx(struct stmmac_pri if (netif_msg_rx_status(priv)) { netdev_dbg(priv->dev, "\tdesc: %p [entry %d] buff=0x%x\n", p, entry, des); - if (frame_len > ETH_FRAME_LEN) - netdev_dbg(priv->dev, "frame size %d, COE: %d\n", - frame_len, status); + netdev_dbg(priv->dev, "frame size %d, COE: %d\n", + frame_len, status); } /* The zero-copy is always used for all the sizes diff --combined drivers/net/geneve.c index 0a48b3073d3d,667c44f68dbc..195e0d0add8d --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@@ -825,13 -825,6 +825,13 @@@ static int geneve_xmit_skb(struct sk_bu if (IS_ERR(rt)) return PTR_ERR(rt); + if (skb_dst(skb)) { + int mtu = dst_mtu(&rt->dst) - sizeof(struct iphdr) - + GENEVE_BASE_HLEN - info->options_len - 14; + + skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu); + } + sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); if (geneve->collect_md) { tos = ip_tunnel_ecn_encap(key->tos, ip_hdr(skb), skb); @@@ -871,13 -864,6 +871,13 @@@ static int geneve6_xmit_skb(struct sk_b if (IS_ERR(dst)) return PTR_ERR(dst); + if (skb_dst(skb)) { + int mtu = dst_mtu(dst) - sizeof(struct ipv6hdr) - + GENEVE_BASE_HLEN - info->options_len - 14; + + skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu); + } + sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); if (geneve->collect_md) { prio = ip_tunnel_ecn_encap(key->tos, ip_hdr(skb), skb); @@@ -1652,19 -1638,16 +1652,16 @@@ static __net_init int geneve_init_net(s return 0; } - static void __net_exit geneve_exit_net(struct net *net) + static void geneve_destroy_tunnels(struct net *net, struct list_head *head) { struct geneve_net *gn = net_generic(net, geneve_net_id); struct geneve_dev *geneve, *next; struct net_device *dev, *aux; - LIST_HEAD(list); - - rtnl_lock(); /* gather any geneve devices that were moved into this ns */ for_each_netdev_safe(net, dev, aux) if (dev->rtnl_link_ops == &geneve_link_ops) - unregister_netdevice_queue(dev, &list); + unregister_netdevice_queue(dev, head); /* now gather any other geneve devices that were created in this ns */ list_for_each_entry_safe(geneve, next, &gn->geneve_list, next) { @@@ -1672,18 -1655,29 +1669,29 @@@ * to the list by the previous loop. */ if (!net_eq(dev_net(geneve->dev), net)) - unregister_netdevice_queue(geneve->dev, &list); + unregister_netdevice_queue(geneve->dev, head); } + WARN_ON_ONCE(!list_empty(&gn->sock_list)); + } + + static void __net_exit geneve_exit_batch_net(struct list_head *net_list) + { + struct net *net; + LIST_HEAD(list); + + rtnl_lock(); + list_for_each_entry(net, net_list, exit_list) + geneve_destroy_tunnels(net, &list); + /* unregister the devices gathered above */ unregister_netdevice_many(&list); rtnl_unlock(); - WARN_ON_ONCE(!list_empty(&gn->sock_list)); } static struct pernet_operations geneve_net_ops = { .init = geneve_init_net, - .exit = geneve_exit_net, + .exit_batch = geneve_exit_batch_net, .id = &geneve_net_id, .size = sizeof(struct geneve_net), }; diff --combined drivers/net/phy/phylink.c index 150cd95a6e1e,d1f9466f2fbf..4e8c459bf062 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@@ -36,7 -36,11 +36,11 @@@ enum PHYLINK_DISABLE_LINK, }; + /** + * struct phylink - internal data type for phylink + */ struct phylink { + /* private: */ struct net_device *netdev; const struct phylink_mac_ops *ops; @@@ -50,6 -54,8 +54,8 @@@ /* The link configuration settings */ struct phylink_link_state link_config; struct gpio_desc *link_gpio; + void (*get_fixed_state)(struct net_device *dev, + struct phylink_link_state *s); struct mutex state_mutex; struct phylink_link_state phy_state; @@@ -87,6 -93,13 +93,13 @@@ static inline bool linkmode_empty(cons return bitmap_empty(src, __ETHTOOL_LINK_MODE_MASK_NBITS); } + /** + * phylink_set_port_modes() - set the port type modes in the ethtool mask + * @mask: ethtool link mode mask + * + * Sets all the port type modes in the ethtool mask. MAC drivers should + * use this in their 'validate' callback. + */ void phylink_set_port_modes(unsigned long *mask) { phylink_set(mask, TP); @@@ -117,8 -130,7 +130,7 @@@ static const char *phylink_an_mode_str( static const char *modestr[] = { [MLO_AN_PHY] = "phy", [MLO_AN_FIXED] = "fixed", - [MLO_AN_SGMII] = "SGMII", - [MLO_AN_8023Z] = "802.3z", + [MLO_AN_INBAND] = "inband", }; return mode < ARRAY_SIZE(modestr) ? modestr[mode] : "unknown"; @@@ -132,59 -144,64 +144,64 @@@ static int phylink_validate(struct phyl return phylink_is_empty_linkmode(supported) ? -EINVAL : 0; } - static int phylink_parse_fixedlink(struct phylink *pl, struct device_node *np) + static int phylink_parse_fixedlink(struct phylink *pl, + struct fwnode_handle *fwnode) { - struct device_node *fixed_node; + struct fwnode_handle *fixed_node; const struct phy_setting *s; struct gpio_desc *desc; - const __be32 *fixed_prop; u32 speed; - int ret, len; + int ret; - fixed_node = of_get_child_by_name(np, "fixed-link"); + fixed_node = fwnode_get_named_child_node(fwnode, "fixed-link"); if (fixed_node) { - ret = of_property_read_u32(fixed_node, "speed", &speed); + ret = fwnode_property_read_u32(fixed_node, "speed", &speed); pl->link_config.speed = speed; pl->link_config.duplex = DUPLEX_HALF; - if (of_property_read_bool(fixed_node, "full-duplex")) + if (fwnode_property_read_bool(fixed_node, "full-duplex")) pl->link_config.duplex = DUPLEX_FULL; /* We treat the "pause" and "asym-pause" terminology as * defining the link partner's ability. */ - if (of_property_read_bool(fixed_node, "pause")) + if (fwnode_property_read_bool(fixed_node, "pause")) pl->link_config.pause |= MLO_PAUSE_SYM; - if (of_property_read_bool(fixed_node, "asym-pause")) + if (fwnode_property_read_bool(fixed_node, "asym-pause")) pl->link_config.pause |= MLO_PAUSE_ASYM; if (ret == 0) { - desc = fwnode_get_named_gpiod(&fixed_node->fwnode, - "link-gpios", 0, - GPIOD_IN, "?"); + desc = fwnode_get_named_gpiod(fixed_node, "link-gpios", + 0, GPIOD_IN, "?"); if (!IS_ERR(desc)) pl->link_gpio = desc; else if (desc == ERR_PTR(-EPROBE_DEFER)) ret = -EPROBE_DEFER; } - of_node_put(fixed_node); + fwnode_handle_put(fixed_node); if (ret) return ret; } else { - fixed_prop = of_get_property(np, "fixed-link", &len); - if (!fixed_prop) { + u32 prop[5]; + + ret = fwnode_property_read_u32_array(fwnode, "fixed-link", + NULL, 0); + if (ret != ARRAY_SIZE(prop)) { netdev_err(pl->netdev, "broken fixed-link?\n"); return -EINVAL; } - if (len == 5 * sizeof(*fixed_prop)) { - pl->link_config.duplex = be32_to_cpu(fixed_prop[1]) ? + + ret = fwnode_property_read_u32_array(fwnode, "fixed-link", + prop, ARRAY_SIZE(prop)); + if (!ret) { + pl->link_config.duplex = prop[1] ? DUPLEX_FULL : DUPLEX_HALF; - pl->link_config.speed = be32_to_cpu(fixed_prop[2]); - if (be32_to_cpu(fixed_prop[3])) + pl->link_config.speed = prop[2]; + if (prop[3]) pl->link_config.pause |= MLO_PAUSE_SYM; - if (be32_to_cpu(fixed_prop[4])) + if (prop[4]) pl->link_config.pause |= MLO_PAUSE_ASYM; } } @@@ -220,17 -237,17 +237,17 @@@ return 0; } - static int phylink_parse_mode(struct phylink *pl, struct device_node *np) + static int phylink_parse_mode(struct phylink *pl, struct fwnode_handle *fwnode) { - struct device_node *dn; + struct fwnode_handle *dn; const char *managed; - dn = of_get_child_by_name(np, "fixed-link"); - if (dn || of_find_property(np, "fixed-link", NULL)) + dn = fwnode_get_named_child_node(fwnode, "fixed-link"); + if (dn || fwnode_property_present(fwnode, "fixed-link")) pl->link_an_mode = MLO_AN_FIXED; - of_node_put(dn); + fwnode_handle_put(dn); - if (of_property_read_string(np, "managed", &managed) == 0 && + if (fwnode_property_read_string(fwnode, "managed", &managed) == 0 && strcmp(managed, "in-band-status") == 0) { if (pl->link_an_mode == MLO_AN_FIXED) { netdev_err(pl->netdev, @@@ -244,6 -261,7 +261,7 @@@ phylink_set(pl->supported, Asym_Pause); phylink_set(pl->supported, Pause); pl->link_config.an_enabled = true; + pl->link_an_mode = MLO_AN_INBAND; switch (pl->link_config.interface) { case PHY_INTERFACE_MODE_SGMII: @@@ -253,17 -271,14 +271,14 @@@ phylink_set(pl->supported, 100baseT_Full); phylink_set(pl->supported, 1000baseT_Half); phylink_set(pl->supported, 1000baseT_Full); - pl->link_an_mode = MLO_AN_SGMII; break; case PHY_INTERFACE_MODE_1000BASEX: phylink_set(pl->supported, 1000baseX_Full); - pl->link_an_mode = MLO_AN_8023Z; break; case PHY_INTERFACE_MODE_2500BASEX: phylink_set(pl->supported, 2500baseX_Full); - pl->link_an_mode = MLO_AN_8023Z; break; case PHY_INTERFACE_MODE_10GKR: @@@ -280,7 -295,6 +295,6 @@@ phylink_set(pl->supported, 10000baseLR_Full); phylink_set(pl->supported, 10000baseLRM_Full); phylink_set(pl->supported, 10000baseER_Full); - pl->link_an_mode = MLO_AN_SGMII; break; default: @@@ -320,8 -334,7 +334,7 @@@ static void phylink_mac_config(struct p static void phylink_mac_an_restart(struct phylink *pl) { if (pl->link_config.an_enabled && - (pl->link_config.interface == PHY_INTERFACE_MODE_1000BASEX || - pl->link_config.interface == PHY_INTERFACE_MODE_2500BASEX)) + phy_interface_mode_is_8023z(pl->link_config.interface)) pl->ops->mac_an_restart(pl->netdev); } @@@ -339,12 -352,14 +352,14 @@@ static int phylink_get_mac_state(struc } /* The fixed state is... fixed except for the link state, - * which may be determined by a GPIO. + * which may be determined by a GPIO or a callback. */ static void phylink_get_fixed_state(struct phylink *pl, struct phylink_link_state *state) { *state = pl->link_config; - if (pl->link_gpio) + if (pl->get_fixed_state) + pl->get_fixed_state(pl->netdev, state); + else if (pl->link_gpio) state->link = !!gpiod_get_value(pl->link_gpio); } @@@ -423,7 -438,7 +438,7 @@@ static void phylink_resolve(struct work phylink_mac_config(pl, &link_state); break; - case MLO_AN_SGMII: + case MLO_AN_INBAND: phylink_get_mac_state(pl, &link_state); if (pl->phydev) { bool changed = false; @@@ -449,10 -464,6 +464,6 @@@ } } break; - - case MLO_AN_8023Z: - phylink_get_mac_state(pl, &link_state); - break; } } @@@ -489,15 -500,27 +500,27 @@@ static void phylink_run_resolve(struct static const struct sfp_upstream_ops sfp_phylink_ops; - static int phylink_register_sfp(struct phylink *pl, struct device_node *np) + static int phylink_register_sfp(struct phylink *pl, + struct fwnode_handle *fwnode) { - struct device_node *sfp_np; + struct fwnode_reference_args ref; + int ret; - sfp_np = of_parse_phandle(np, "sfp", 0); - if (!sfp_np) + if (!fwnode) return 0; - pl->sfp_bus = sfp_register_upstream(sfp_np, pl->netdev, pl, + ret = fwnode_property_get_reference_args(fwnode, "sfp", NULL, + 0, 0, &ref); + if (ret < 0) { + if (ret == -ENOENT) + return 0; + + netdev_err(pl->netdev, "unable to parse \"sfp\" node: %d\n", + ret); + return ret; + } + + pl->sfp_bus = sfp_register_upstream(ref.fwnode, pl->netdev, pl, &sfp_phylink_ops); if (!pl->sfp_bus) return -ENOMEM; @@@ -505,7 -528,22 +528,22 @@@ return 0; } - struct phylink *phylink_create(struct net_device *ndev, struct device_node *np, + /** + * phylink_create() - create a phylink instance + * @ndev: a pointer to the &struct net_device + * @fwnode: a pointer to a &struct fwnode_handle describing the network + * interface + * @iface: the desired link mode defined by &typedef phy_interface_t + * @ops: a pointer to a &struct phylink_mac_ops for the MAC. + * + * Create a new phylink instance, and parse the link parameters found in @np. + * This will parse in-band modes, fixed-link or SFP configuration. + * + * Returns a pointer to a &struct phylink, or an error-pointer value. Users + * must use IS_ERR() to check for errors from this function. + */ + struct phylink *phylink_create(struct net_device *ndev, + struct fwnode_handle *fwnode, phy_interface_t iface, const struct phylink_mac_ops *ops) { @@@ -521,7 -559,10 +559,10 @@@ pl->netdev = ndev; pl->phy_state.interface = iface; pl->link_interface = iface; - pl->link_port = PORT_MII; + if (iface == PHY_INTERFACE_MODE_MOCA) + pl->link_port = PORT_BNC; + else + pl->link_port = PORT_MII; pl->link_config.interface = iface; pl->link_config.pause = MLO_PAUSE_AN; pl->link_config.speed = SPEED_UNKNOWN; @@@ -534,21 -575,21 +575,21 @@@ linkmode_copy(pl->link_config.advertising, pl->supported); phylink_validate(pl, pl->supported, &pl->link_config); - ret = phylink_parse_mode(pl, np); + ret = phylink_parse_mode(pl, fwnode); if (ret < 0) { kfree(pl); return ERR_PTR(ret); } if (pl->link_an_mode == MLO_AN_FIXED) { - ret = phylink_parse_fixedlink(pl, np); + ret = phylink_parse_fixedlink(pl, fwnode); if (ret < 0) { kfree(pl); return ERR_PTR(ret); } } - ret = phylink_register_sfp(pl, np); + ret = phylink_register_sfp(pl, fwnode); if (ret < 0) { kfree(pl); return ERR_PTR(ret); @@@ -558,6 -599,13 +599,13 @@@ } EXPORT_SYMBOL_GPL(phylink_create); + /** + * phylink_destroy() - cleanup and destroy the phylink instance + * @pl: a pointer to a &struct phylink returned from phylink_create() + * + * Destroy a phylink instance. Any PHY that has been attached must have been + * cleaned up via phylink_disconnect_phy() prior to calling this function. + */ void phylink_destroy(struct phylink *pl) { if (pl->sfp_bus) @@@ -654,10 -702,39 +702,39 @@@ static int phylink_bringup_phy(struct p return 0; } + /** + * phylink_connect_phy() - connect a PHY to the phylink instance + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @phy: a pointer to a &struct phy_device. + * + * Connect @phy to the phylink instance specified by @pl by calling + * phy_attach_direct(). Configure the @phy according to the MAC driver's + * capabilities, start the PHYLIB state machine and enable any interrupts + * that the PHY supports. + * + * This updates the phylink's ethtool supported and advertising link mode + * masks. + * + * Returns 0 on success or a negative errno. + */ int phylink_connect_phy(struct phylink *pl, struct phy_device *phy) { int ret; + if (WARN_ON(pl->link_an_mode == MLO_AN_FIXED || + (pl->link_an_mode == MLO_AN_INBAND && + phy_interface_mode_is_8023z(pl->link_interface)))) + return -EINVAL; + + if (pl->phydev) + return -EBUSY; + + /* Use PHY device/driver interface */ + if (pl->link_interface == PHY_INTERFACE_MODE_NA) { + pl->link_interface = phy->interface; + pl->link_config.interface = pl->link_interface; + } + ret = phy_attach_direct(pl->netdev, phy, 0, pl->link_interface); if (ret) return ret; @@@ -670,14 -747,29 +747,29 @@@ } EXPORT_SYMBOL_GPL(phylink_connect_phy); - int phylink_of_phy_connect(struct phylink *pl, struct device_node *dn) + /** + * phylink_of_phy_connect() - connect the PHY specified in the DT mode. + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @dn: a pointer to a &struct device_node. + * @flags: PHY-specific flags to communicate to the PHY device driver + * + * Connect the phy specified in the device node @dn to the phylink instance + * specified by @pl. Actions specified in phylink_connect_phy() will be + * performed. + * + * Returns 0 on success or a negative errno. + */ + int phylink_of_phy_connect(struct phylink *pl, struct device_node *dn, + u32 flags) { struct device_node *phy_node; struct phy_device *phy_dev; int ret; - /* Fixed links are handled without needing a PHY */ - if (pl->link_an_mode == MLO_AN_FIXED) + /* Fixed links and 802.3z are handled without needing a PHY */ + if (pl->link_an_mode == MLO_AN_FIXED || + (pl->link_an_mode == MLO_AN_INBAND && + phy_interface_mode_is_8023z(pl->link_interface))) return 0; phy_node = of_parse_phandle(dn, "phy-handle", 0); @@@ -687,14 -779,13 +779,13 @@@ phy_node = of_parse_phandle(dn, "phy-device", 0); if (!phy_node) { - if (pl->link_an_mode == MLO_AN_PHY) { - netdev_err(pl->netdev, "unable to find PHY node\n"); + if (pl->link_an_mode == MLO_AN_PHY) return -ENODEV; - } return 0; } - phy_dev = of_phy_attach(pl->netdev, phy_node, 0, pl->link_interface); + phy_dev = of_phy_attach(pl->netdev, phy_node, flags, + pl->link_interface); /* We're done with the phy_node handle */ of_node_put(phy_node); @@@ -709,11 -800,18 +800,18 @@@ } EXPORT_SYMBOL_GPL(phylink_of_phy_connect); + /** + * phylink_disconnect_phy() - disconnect any PHY attached to the phylink + * instance. + * @pl: a pointer to a &struct phylink returned from phylink_create() + * + * Disconnect any current PHY from the phylink instance described by @pl. + */ void phylink_disconnect_phy(struct phylink *pl) { struct phy_device *phy; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); phy = pl->phydev; if (phy) { @@@ -730,6 -828,40 +828,40 @@@ } EXPORT_SYMBOL_GPL(phylink_disconnect_phy); + /** + * phylink_fixed_state_cb() - allow setting a fixed link callback + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @cb: callback to execute to determine the fixed link state. + * + * The MAC driver should call this driver when the state of its link + * can be determined through e.g: an out of band MMIO register. + */ + int phylink_fixed_state_cb(struct phylink *pl, + void (*cb)(struct net_device *dev, + struct phylink_link_state *state)) + { + /* It does not make sense to let the link be overriden unless we use + * MLO_AN_FIXED + */ + if (pl->link_an_mode != MLO_AN_FIXED) + return -EINVAL; + + mutex_lock(&pl->state_mutex); + pl->get_fixed_state = cb; + mutex_unlock(&pl->state_mutex); + + return 0; + } + EXPORT_SYMBOL_GPL(phylink_fixed_state_cb); + + /** + * phylink_mac_change() - notify phylink of a change in MAC state + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @up: indicates whether the link is currently up. + * + * The MAC driver should call this driver when the state of its link + * changes (eg, link failure, new negotiation results, etc.) + */ void phylink_mac_change(struct phylink *pl, bool up) { if (!up) @@@ -739,9 -871,17 +871,17 @@@ } EXPORT_SYMBOL_GPL(phylink_mac_change); + /** + * phylink_start() - start a phylink instance + * @pl: a pointer to a &struct phylink returned from phylink_create() + * + * Start the phylink instance specified by @pl, configuring the MAC for the + * desired link mode(s) and negotiation style. This should be called from the + * network device driver's &struct net_device_ops ndo_open() method. + */ void phylink_start(struct phylink *pl) { - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); netdev_info(pl->netdev, "configuring for %s/%s link mode\n", phylink_an_mode_str(pl->link_an_mode), @@@ -754,6 -894,12 +894,12 @@@ phylink_resolve_flow(pl, &pl->link_config); phylink_mac_config(pl, &pl->link_config); + /* Restart autonegotiation if using 802.3z to ensure that the link + * parameters are properly negotiated. This is necessary for DSA + * switches using 802.3z negotiation to ensure they see our modes. + */ + phylink_mac_an_restart(pl); + clear_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state); phylink_run_resolve(pl); @@@ -764,9 -910,18 +910,18 @@@ } EXPORT_SYMBOL_GPL(phylink_start); + /** + * phylink_stop() - stop a phylink instance + * @pl: a pointer to a &struct phylink returned from phylink_create() + * + * Stop the phylink instance specified by @pl. This should be called from the + * network device driver's &struct net_device_ops ndo_stop() method. The + * network device's carrier state should not be changed prior to calling this + * function. + */ void phylink_stop(struct phylink *pl) { - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) phy_stop(pl->phydev); @@@ -779,9 -934,18 +934,18 @@@ } EXPORT_SYMBOL_GPL(phylink_stop); + /** + * phylink_ethtool_get_wol() - get the wake on lan parameters for the PHY + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @wol: a pointer to &struct ethtool_wolinfo to hold the read parameters + * + * Read the wake on lan parameters from the PHY attached to the phylink + * instance specified by @pl. If no PHY is currently attached, report no + * support for wake on lan. + */ void phylink_ethtool_get_wol(struct phylink *pl, struct ethtool_wolinfo *wol) { - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); wol->supported = 0; wol->wolopts = 0; @@@ -791,11 -955,22 +955,22 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_get_wol); + /** + * phylink_ethtool_set_wol() - set wake on lan parameters + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @wol: a pointer to &struct ethtool_wolinfo for the desired parameters + * + * Set the wake on lan parameters for the PHY attached to the phylink + * instance specified by @pl. If no PHY is attached, returns %EOPNOTSUPP + * error. + * + * Returns zero on success or negative errno code. + */ int phylink_ethtool_set_wol(struct phylink *pl, struct ethtool_wolinfo *wol) { int ret = -EOPNOTSUPP; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) ret = phy_ethtool_set_wol(pl->phydev, wol); @@@ -826,12 -1001,21 +1001,21 @@@ static void phylink_get_ksettings(cons AUTONEG_DISABLE; } + /** + * phylink_ethtool_ksettings_get() - get the current link settings + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @kset: a pointer to a &struct ethtool_link_ksettings to hold link settings + * + * Read the current link settings for the phylink instance specified by @pl. + * This will be the link settings read from the MAC, PHY or fixed link + * settings depending on the current negotiation mode. + */ int phylink_ethtool_ksettings_get(struct phylink *pl, struct ethtool_link_ksettings *kset) { struct phylink_link_state link_state; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) { phy_ethtool_ksettings_get(pl->phydev, kset); @@@ -851,14 -1035,13 +1035,13 @@@ phylink_get_ksettings(&link_state, kset); break; - case MLO_AN_SGMII: + case MLO_AN_INBAND: /* If there is a phy attached, then use the reported * settings from the phy with no modification. */ if (pl->phydev) break; - case MLO_AN_8023Z: phylink_get_mac_state(pl, &link_state); /* The MAC is reporting the link results from its own PCS @@@ -873,6 -1056,11 +1056,11 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_ksettings_get); + /** + * phylink_ethtool_ksettings_set() - set the link settings + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @kset: a pointer to a &struct ethtool_link_ksettings for the desired modes + */ int phylink_ethtool_ksettings_set(struct phylink *pl, const struct ethtool_link_ksettings *kset) { @@@ -880,7 -1068,7 +1068,7 @@@ struct phylink_link_state config; int ret; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (kset->base.autoneg != AUTONEG_DISABLE && kset->base.autoneg != AUTONEG_ENABLE) @@@ -967,11 -1155,22 +1155,22 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_ksettings_set); + /** + * phylink_ethtool_nway_reset() - restart negotiation + * @pl: a pointer to a &struct phylink returned from phylink_create() + * + * Restart negotiation for the phylink instance specified by @pl. This will + * cause any attached phy to restart negotiation with the link partner, and + * if the MAC is in a BaseX mode, the MAC will also be requested to restart + * negotiation. + * + * Returns zero on success, or negative error code. + */ int phylink_ethtool_nway_reset(struct phylink *pl) { int ret = 0; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) ret = phy_restart_aneg(pl->phydev); @@@ -981,10 -1180,15 +1180,15 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_nway_reset); + /** + * phylink_ethtool_get_pauseparam() - get the current pause parameters + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @pause: a pointer to a &struct ethtool_pauseparam + */ void phylink_ethtool_get_pauseparam(struct phylink *pl, struct ethtool_pauseparam *pause) { - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); pause->autoneg = !!(pl->link_config.pause & MLO_PAUSE_AN); pause->rx_pause = !!(pl->link_config.pause & MLO_PAUSE_RX); @@@ -992,12 -1196,17 +1196,17 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_get_pauseparam); + /** + * phylink_ethtool_set_pauseparam() - set the current pause parameters + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @pause: a pointer to a &struct ethtool_pauseparam + */ int phylink_ethtool_set_pauseparam(struct phylink *pl, struct ethtool_pauseparam *pause) { struct phylink_link_state *config = &pl->link_config; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (!phylink_test(pl->supported, Pause) && !phylink_test(pl->supported, Asym_Pause)) @@@ -1030,8 -1239,7 +1239,7 @@@ phylink_mac_config(pl, config); break; - case MLO_AN_SGMII: - case MLO_AN_8023Z: + case MLO_AN_INBAND: phylink_mac_config(pl, config); phylink_mac_an_restart(pl); break; @@@ -1070,24 -1278,21 +1278,21 @@@ int phylink_ethtool_get_module_eeprom(s } EXPORT_SYMBOL_GPL(phylink_ethtool_get_module_eeprom); - int phylink_init_eee(struct phylink *pl, bool clk_stop_enable) - { - int ret = -EPROTONOSUPPORT; - - WARN_ON(!lockdep_rtnl_is_held()); - - if (pl->phydev) - ret = phy_init_eee(pl->phydev, clk_stop_enable); - - return ret; - } - EXPORT_SYMBOL_GPL(phylink_init_eee); - + /** + * phylink_ethtool_get_eee_err() - read the energy efficient ethernet error + * counter + * @pl: a pointer to a &struct phylink returned from phylink_create(). + * + * Read the Energy Efficient Ethernet error counter from the PHY associated + * with the phylink instance specified by @pl. + * + * Returns positive error counter value, or negative error code. + */ int phylink_get_eee_err(struct phylink *pl) { int ret = 0; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) ret = phy_get_eee_err(pl->phydev); @@@ -1096,11 -1301,16 +1301,16 @@@ } EXPORT_SYMBOL_GPL(phylink_get_eee_err); + /** + * phylink_ethtool_get_eee() - read the energy efficient ethernet parameters + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @eee: a pointer to a &struct ethtool_eee for the read parameters + */ int phylink_ethtool_get_eee(struct phylink *pl, struct ethtool_eee *eee) { int ret = -EOPNOTSUPP; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) ret = phy_ethtool_get_eee(pl->phydev, eee); @@@ -1109,11 -1319,16 +1319,16 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_get_eee); + /** + * phylink_ethtool_set_eee() - set the energy efficient ethernet parameters + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @eee: a pointer to a &struct ethtool_eee for the desired parameters + */ int phylink_ethtool_set_eee(struct phylink *pl, struct ethtool_eee *eee) { int ret = -EOPNOTSUPP; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) ret = phy_ethtool_set_eee(pl->phydev, eee); @@@ -1248,9 -1463,7 +1463,7 @@@ static int phylink_mii_read(struct phyl case MLO_AN_PHY: return -EOPNOTSUPP; - case MLO_AN_SGMII: - /* No phy, fall through to 8023z method */ - case MLO_AN_8023Z: + case MLO_AN_INBAND: if (phy_id == 0) { val = phylink_get_mac_state(pl, &state); if (val < 0) @@@ -1275,24 -1488,40 +1488,40 @@@ static int phylink_mii_write(struct phy case MLO_AN_PHY: return -EOPNOTSUPP; - case MLO_AN_SGMII: - /* No phy, fall through to 8023z method */ - case MLO_AN_8023Z: + case MLO_AN_INBAND: break; } return 0; } + /** + * phylink_mii_ioctl() - generic mii ioctl interface + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @ifr: a pointer to a &struct ifreq for socket ioctls + * @cmd: ioctl cmd to execute + * + * Perform the specified MII ioctl on the PHY attached to the phylink instance + * specified by @pl. If no PHY is attached, emulate the presence of the PHY. + * + * Returns: zero on success or negative error code. + * + * %SIOCGMIIPHY: + * read register from the current PHY. + * %SIOCGMIIREG: + * read register from the specified PHY. + * %SIOCSMIIREG: + * set a register on the specified PHY. + */ int phylink_mii_ioctl(struct phylink *pl, struct ifreq *ifr, int cmd) { struct mii_ioctl_data *mii = if_mii(ifr); int ret; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) { - /* PHYs only exist for MLO_AN_PHY and MLO_AN_SGMII */ + /* PHYs only exist for MLO_AN_PHY and SGMII */ switch (cmd) { case SIOCGMIIPHY: mii->phy_id = pl->phydev->mdio.addr; @@@ -1349,7 -1578,7 +1578,7 @@@ static int phylink_sfp_module_insert(vo __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, }; struct phylink_link_state config; phy_interface_t iface; - int mode, ret = 0; + int ret = 0; bool changed; u8 port; @@@ -1357,14 -1586,13 +1586,13 @@@ port = sfp_parse_port(pl->sfp_bus, id, support); iface = sfp_parse_interface(pl->sfp_bus, id); - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); switch (iface) { case PHY_INTERFACE_MODE_SGMII: - mode = MLO_AN_SGMII; - break; case PHY_INTERFACE_MODE_1000BASEX: - mode = MLO_AN_8023Z; + case PHY_INTERFACE_MODE_2500BASEX: + case PHY_INTERFACE_MODE_10GKR: break; default: return -EINVAL; @@@ -1382,16 -1610,18 +1610,18 @@@ ret = phylink_validate(pl, support, &config); if (ret) { netdev_err(pl->netdev, "validation of %s/%s with support %*pb failed: %d\n", - phylink_an_mode_str(mode), phy_modes(config.interface), + phylink_an_mode_str(MLO_AN_INBAND), + phy_modes(config.interface), __ETHTOOL_LINK_MODE_MASK_NBITS, support, ret); return ret; } netdev_dbg(pl->netdev, "requesting link mode %s/%s with support %*pb\n", - phylink_an_mode_str(mode), phy_modes(config.interface), + phylink_an_mode_str(MLO_AN_INBAND), + phy_modes(config.interface), __ETHTOOL_LINK_MODE_MASK_NBITS, support); - if (mode == MLO_AN_8023Z && pl->phydev) + if (phy_interface_mode_is_8023z(iface) && pl->phydev) return -EINVAL; changed = !bitmap_equal(pl->supported, support, @@@ -1401,15 -1631,15 +1631,15 @@@ linkmode_copy(pl->link_config.advertising, config.advertising); } - if (pl->link_an_mode != mode || + if (pl->link_an_mode != MLO_AN_INBAND || pl->link_config.interface != config.interface) { pl->link_config.interface = config.interface; - pl->link_an_mode = mode; + pl->link_an_mode = MLO_AN_INBAND; changed = true; netdev_info(pl->netdev, "switched to %s/%s link mode\n", - phylink_an_mode_str(mode), + phylink_an_mode_str(MLO_AN_INBAND), phy_modes(config.interface)); } @@@ -1426,18 -1656,19 +1656,18 @@@ static void phylink_sfp_link_down(void { struct phylink *pl = upstream; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); set_bit(PHYLINK_DISABLE_LINK, &pl->phylink_disable_state); + queue_work(system_power_efficient_wq, &pl->resolve); flush_work(&pl->resolve); - - netif_carrier_off(pl->netdev); } static void phylink_sfp_link_up(void *upstream) { struct phylink *pl = upstream; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); clear_bit(PHYLINK_DISABLE_LINK, &pl->phylink_disable_state); phylink_run_resolve(pl); diff --combined drivers/net/phy/sfp-bus.c index ab64a142b832,3ecc378e0716..bdc4bb3c8288 --- a/drivers/net/phy/sfp-bus.c +++ b/drivers/net/phy/sfp-bus.c @@@ -8,10 -8,14 +8,14 @@@ #include "sfp.h" + /** + * struct sfp_bus - internal representation of a sfp bus + */ struct sfp_bus { + /* private: */ struct kref kref; struct list_head node; - struct device_node *device_node; + struct fwnode_handle *fwnode; const struct sfp_socket_ops *socket_ops; struct device *sfp_dev; @@@ -26,6 -30,20 +30,20 @@@ bool started; }; + /** + * sfp_parse_port() - Parse the EEPROM base ID, setting the port type + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * @id: a pointer to the module's &struct sfp_eeprom_id + * @support: optional pointer to an array of unsigned long for the + * ethtool support mask + * + * Parse the EEPROM identification given in @id, and return one of + * %PORT_TP, %PORT_FIBRE or %PORT_OTHER. If @support is non-%NULL, + * also set the ethtool %ETHTOOL_LINK_MODE_xxx_BIT corresponding with + * the connector type. + * + * If the port type is not known, returns %PORT_OTHER. + */ int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id, unsigned long *support) { @@@ -39,21 -57,19 +57,19 @@@ case SFP_CONNECTOR_MT_RJ: case SFP_CONNECTOR_MU: case SFP_CONNECTOR_OPTICAL_PIGTAIL: - if (support) - phylink_set(support, FIBRE); port = PORT_FIBRE; break; case SFP_CONNECTOR_RJ45: - if (support) - phylink_set(support, TP); port = PORT_TP; break; + case SFP_CONNECTOR_COPPER_PIGTAIL: + port = PORT_DA; + break; + case SFP_CONNECTOR_UNSPEC: if (id->base.e1000_base_t) { - if (support) - phylink_set(support, TP); port = PORT_TP; break; } @@@ -62,7 -78,6 +78,6 @@@ case SFP_CONNECTOR_MPO_1X12: case SFP_CONNECTOR_MPO_2X16: case SFP_CONNECTOR_HSSDC_II: - case SFP_CONNECTOR_COPPER_PIGTAIL: case SFP_CONNECTOR_NOSEPARATE: case SFP_CONNECTOR_MXC_2X16: port = PORT_OTHER; @@@ -74,10 -89,40 +89,40 @@@ break; } + if (support) { + switch (port) { + case PORT_FIBRE: + phylink_set(support, FIBRE); + break; + + case PORT_TP: + phylink_set(support, TP); + break; + } + } + return port; } EXPORT_SYMBOL_GPL(sfp_parse_port); + /** + * sfp_parse_interface() - Parse the phy_interface_t + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * @id: a pointer to the module's &struct sfp_eeprom_id + * + * Derive the phy_interface_t mode for the information found in the + * module's identifying EEPROM. There is no standard or defined way + * to derive this information, so we use some heuristics. + * + * If the encoding is 64b66b, then the module must be >= 10G, so + * return %PHY_INTERFACE_MODE_10GKR. + * + * If it's 8b10b, then it's 1G or slower. If it's definitely a fibre + * module, return %PHY_INTERFACE_MODE_1000BASEX mode, otherwise return + * %PHY_INTERFACE_MODE_SGMII mode. + * + * If the encoding is not known, return %PHY_INTERFACE_MODE_NA. + */ phy_interface_t sfp_parse_interface(struct sfp_bus *bus, const struct sfp_eeprom_id *id) { @@@ -107,6 -152,11 +152,11 @@@ break; default: + if (id->base.e1000_base_cx) { + iface = PHY_INTERFACE_MODE_1000BASEX; + break; + } + iface = PHY_INTERFACE_MODE_NA; dev_err(bus->sfp_dev, "SFP module encoding does not support 8b10b nor 64b66b\n"); @@@ -117,13 -167,38 +167,38 @@@ } EXPORT_SYMBOL_GPL(sfp_parse_interface); + /** + * sfp_parse_support() - Parse the eeprom id for supported link modes + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * @id: a pointer to the module's &struct sfp_eeprom_id + * @support: pointer to an array of unsigned long for the ethtool support mask + * + * Parse the EEPROM identification information and derive the supported + * ethtool link modes for the module. + */ void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id, unsigned long *support) { + unsigned int br_min, br_nom, br_max; + phylink_set(support, Autoneg); phylink_set(support, Pause); phylink_set(support, Asym_Pause); + /* Decode the bitrate information to MBd */ + br_min = br_nom = br_max = 0; + if (id->base.br_nominal) { + if (id->base.br_nominal != 255) { + br_nom = id->base.br_nominal * 100; + br_min = br_nom + id->base.br_nominal * id->ext.br_min; + br_max = br_nom + id->base.br_nominal * id->ext.br_max; + } else if (id->ext.br_max) { + br_nom = 250 * id->ext.br_max; + br_max = br_nom + br_nom * id->ext.br_min / 100; + br_min = br_nom - br_nom * id->ext.br_min / 100; + } + } + /* Set ethtool support from the compliance fields. */ if (id->base.e10g_base_sr) phylink_set(support, 10000baseSR_Full); @@@ -142,6 -217,34 +217,34 @@@ phylink_set(support, 1000baseT_Full); } + /* 1000Base-PX or 1000Base-BX10 */ + if ((id->base.e_base_px || id->base.e_base_bx10) && + br_min <= 1300 && br_max >= 1200) + phylink_set(support, 1000baseX_Full); + + /* For active or passive cables, select the link modes + * based on the bit rates and the cable compliance bytes. + */ + if ((id->base.sfp_ct_passive || id->base.sfp_ct_active) && br_nom) { + /* This may look odd, but some manufacturers use 12000MBd */ + if (br_min <= 12000 && br_max >= 10300) + phylink_set(support, 10000baseCR_Full); + if (br_min <= 3200 && br_max >= 3100) + phylink_set(support, 2500baseX_Full); + if (br_min <= 1300 && br_max >= 1200) + phylink_set(support, 1000baseX_Full); + } + if (id->base.sfp_ct_passive) { + if (id->base.passive.sff8431_app_e) + phylink_set(support, 10000baseCR_Full); + } + if (id->base.sfp_ct_active) { + if (id->base.active.sff8431_app_e || + id->base.active.sff8431_lim) { + phylink_set(support, 10000baseCR_Full); + } + } + switch (id->base.extended_cc) { case 0x00: /* Unspecified */ break; @@@ -175,35 -278,6 +278,6 @@@ if (id->base.br_nominal >= 12) phylink_set(support, 1000baseX_Full); } - - switch (id->base.connector) { - case SFP_CONNECTOR_SC: - case SFP_CONNECTOR_FIBERJACK: - case SFP_CONNECTOR_LC: - case SFP_CONNECTOR_MT_RJ: - case SFP_CONNECTOR_MU: - case SFP_CONNECTOR_OPTICAL_PIGTAIL: - break; - - case SFP_CONNECTOR_UNSPEC: - if (id->base.e1000_base_t) - break; - - case SFP_CONNECTOR_SG: /* guess */ - case SFP_CONNECTOR_MPO_1X12: - case SFP_CONNECTOR_MPO_2X16: - case SFP_CONNECTOR_HSSDC_II: - case SFP_CONNECTOR_COPPER_PIGTAIL: - case SFP_CONNECTOR_NOSEPARATE: - case SFP_CONNECTOR_MXC_2X16: - default: - /* a guess at the supported link modes */ - dev_warn(bus->sfp_dev, - "Guessing link modes, please report...\n"); - phylink_set(support, 1000baseT_Half); - phylink_set(support, 1000baseT_Full); - break; - } } EXPORT_SYMBOL_GPL(sfp_parse_support); @@@ -215,7 -289,7 +289,7 @@@ static const struct sfp_upstream_ops *s return bus->registered ? bus->upstream_ops : NULL; } - static struct sfp_bus *sfp_bus_get(struct device_node *np) + static struct sfp_bus *sfp_bus_get(struct fwnode_handle *fwnode) { struct sfp_bus *sfp, *new, *found = NULL; @@@ -224,7 -298,7 +298,7 @@@ mutex_lock(&sfp_mutex); list_for_each_entry(sfp, &sfp_buses, node) { - if (sfp->device_node == np) { + if (sfp->fwnode == fwnode) { kref_get(&sfp->kref); found = sfp; break; @@@ -233,7 -307,7 +307,7 @@@ if (!found && new) { kref_init(&new->kref); - new->device_node = np; + new->fwnode = fwnode; list_add(&new->node, &sfp_buses); found = new; new = NULL; @@@ -246,7 -320,7 +320,7 @@@ return found; } - static void sfp_bus_release(struct kref *kref) __releases(sfp_mutex) + static void sfp_bus_release(struct kref *kref) { struct sfp_bus *bus = container_of(kref, struct sfp_bus, kref); @@@ -293,6 -367,16 +367,16 @@@ static void sfp_unregister_bus(struct s bus->registered = false; } + /** + * sfp_get_module_info() - Get the ethtool_modinfo for a SFP module + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * @modinfo: a &struct ethtool_modinfo + * + * Fill in the type and eeprom_len parameters in @modinfo for a module on + * the sfp bus specified by @bus. + * + * Returns 0 on success or a negative errno number. + */ int sfp_get_module_info(struct sfp_bus *bus, struct ethtool_modinfo *modinfo) { if (!bus->registered) @@@ -301,6 -385,17 +385,17 @@@ } EXPORT_SYMBOL_GPL(sfp_get_module_info); + /** + * sfp_get_module_eeprom() - Read the SFP module EEPROM + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * @ee: a &struct ethtool_eeprom + * @data: buffer to contain the EEPROM data (must be at least @ee->len bytes) + * + * Read the EEPROM as specified by the supplied @ee. See the documentation + * for &struct ethtool_eeprom for the region to be read. + * + * Returns 0 on success or a negative errno number. + */ int sfp_get_module_eeprom(struct sfp_bus *bus, struct ethtool_eeprom *ee, u8 *data) { @@@ -310,6 -405,15 +405,15 @@@ } EXPORT_SYMBOL_GPL(sfp_get_module_eeprom); + /** + * sfp_upstream_start() - Inform the SFP that the network device is up + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * + * Inform the SFP socket that the network device is now up, so that the + * module can be enabled by allowing TX_DISABLE to be deasserted. This + * should be called from the network device driver's &struct net_device_ops + * ndo_open() method. + */ void sfp_upstream_start(struct sfp_bus *bus) { if (bus->registered) @@@ -318,6 -422,15 +422,15 @@@ } EXPORT_SYMBOL_GPL(sfp_upstream_start); + /** + * sfp_upstream_stop() - Inform the SFP that the network device is down + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * + * Inform the SFP socket that the network device is now up, so that the + * module can be disabled by asserting TX_DISABLE, disabling the laser + * in optical modules. This should be called from the network device + * driver's &struct net_device_ops ndo_stop() method. + */ void sfp_upstream_stop(struct sfp_bus *bus) { if (bus->registered) @@@ -326,11 -439,24 +439,24 @@@ } EXPORT_SYMBOL_GPL(sfp_upstream_stop); - struct sfp_bus *sfp_register_upstream(struct device_node *np, + /** + * sfp_register_upstream() - Register the neighbouring device + * @np: device node for the SFP bus + * @ndev: network device associated with the interface + * @upstream: the upstream private data + * @ops: the upstream's &struct sfp_upstream_ops + * + * Register the upstream device (eg, PHY) with the SFP bus. MAC drivers + * should use phylink, which will call this function for them. Returns + * a pointer to the allocated &struct sfp_bus. + * + * On error, returns %NULL. + */ + struct sfp_bus *sfp_register_upstream(struct fwnode_handle *fwnode, struct net_device *ndev, void *upstream, const struct sfp_upstream_ops *ops) { - struct sfp_bus *bus = sfp_bus_get(np); + struct sfp_bus *bus = sfp_bus_get(fwnode); int ret = 0; if (bus) { @@@ -353,11 -479,17 +479,18 @@@ } EXPORT_SYMBOL_GPL(sfp_register_upstream); + /** + * sfp_unregister_upstream() - Unregister sfp bus + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * + * Unregister a previously registered upstream connection for the SFP + * module. @bus is returned from sfp_register_upstream(). + */ void sfp_unregister_upstream(struct sfp_bus *bus) { rtnl_lock(); - sfp_unregister_bus(bus); + if (bus->sfp) + sfp_unregister_bus(bus); bus->upstream = NULL; bus->netdev = NULL; rtnl_unlock(); @@@ -434,7 -566,7 +567,7 @@@ EXPORT_SYMBOL_GPL(sfp_module_remove) struct sfp_bus *sfp_register_socket(struct device *dev, struct sfp *sfp, const struct sfp_socket_ops *ops) { - struct sfp_bus *bus = sfp_bus_get(dev->of_node); + struct sfp_bus *bus = sfp_bus_get(dev->fwnode); int ret = 0; if (bus) { @@@ -460,8 -592,7 +593,8 @@@ EXPORT_SYMBOL_GPL(sfp_register_socket) void sfp_unregister_socket(struct sfp_bus *bus) { rtnl_lock(); - sfp_unregister_bus(bus); + if (bus->netdev) + sfp_unregister_bus(bus); bus->sfp_dev = NULL; bus->sfp = NULL; bus->socket_ops = NULL; diff --combined drivers/net/tun.c index 2ffe5dba7e09,e367d6310353..164fef1d1cf3 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@@ -195,6 -195,11 +195,11 @@@ struct tun_flow_entry #define TUN_NUM_FLOW_ENTRIES 1024 + struct tun_steering_prog { + struct rcu_head rcu; + struct bpf_prog *prog; + }; + /* Since the socket were moved to tun_file, to preserve the behavior of persist * device, socket filter, sndbuf and vnet header size were restore when the * file were attached to a persist device. @@@ -232,6 -237,7 +237,7 @@@ struct tun_struct u32 rx_batched; struct tun_pcpu_stats __percpu *pcpu_stats; struct bpf_prog __rcu *xdp_prog; + struct tun_steering_prog __rcu *steering_prog; }; static int tun_napi_receive(struct napi_struct *napi, int budget) @@@ -537,15 -543,12 +543,12 @@@ static inline void tun_flow_save_rps_rx * different rxq no. here. If we could not get rxhash, then we would * hope the rxq no. may help here. */ - static u16 tun_select_queue(struct net_device *dev, struct sk_buff *skb, - void *accel_priv, select_queue_fallback_t fallback) + static u16 tun_automq_select_queue(struct tun_struct *tun, struct sk_buff *skb) { - struct tun_struct *tun = netdev_priv(dev); struct tun_flow_entry *e; u32 txq = 0; u32 numqueues = 0; - rcu_read_lock(); numqueues = READ_ONCE(tun->numqueues); txq = __skb_get_hash_symmetric(skb); @@@ -563,10 -566,37 +566,37 @@@ txq -= numqueues; } - rcu_read_unlock(); return txq; } + static u16 tun_ebpf_select_queue(struct tun_struct *tun, struct sk_buff *skb) + { + struct tun_steering_prog *prog; + u16 ret = 0; + + prog = rcu_dereference(tun->steering_prog); + if (prog) + ret = bpf_prog_run_clear_cb(prog->prog, skb); + + return ret % tun->numqueues; + } + + static u16 tun_select_queue(struct net_device *dev, struct sk_buff *skb, + void *accel_priv, select_queue_fallback_t fallback) + { + struct tun_struct *tun = netdev_priv(dev); + u16 ret; + + rcu_read_lock(); + if (rcu_dereference(tun->steering_prog)) + ret = tun_ebpf_select_queue(tun, skb); + else + ret = tun_automq_select_queue(tun, skb); + rcu_read_unlock(); + + return ret; + } + static inline bool tun_not_capable(struct tun_struct *tun) { const struct cred *cred = current_cred(); @@@ -673,7 -703,6 +703,6 @@@ static void tun_detach(struct tun_file static void tun_detach_all(struct net_device *dev) { struct tun_struct *tun = netdev_priv(dev); - struct bpf_prog *xdp_prog = rtnl_dereference(tun->xdp_prog); struct tun_file *tfile, *tmp; int i, n = tun->numqueues; @@@ -708,9 -737,6 +737,6 @@@ } BUG_ON(tun->numdisabled != 0); - if (xdp_prog) - bpf_prog_put(xdp_prog); - if (tun->flags & IFF_PERSIST) module_put(THIS_MODULE); } @@@ -937,23 -963,10 +963,10 @@@ static int tun_net_close(struct net_dev } /* Net device start xmit */ - static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev) + static void tun_automq_xmit(struct tun_struct *tun, struct sk_buff *skb) { - struct tun_struct *tun = netdev_priv(dev); - int txq = skb->queue_mapping; - struct tun_file *tfile; - u32 numqueues = 0; - - rcu_read_lock(); - tfile = rcu_dereference(tun->tfiles[txq]); - numqueues = READ_ONCE(tun->numqueues); - - /* Drop packet if interface is not attached */ - if (txq >= numqueues) - goto drop; - #ifdef CONFIG_RPS - if (numqueues == 1 && static_key_false(&rps_needed)) { + if (tun->numqueues == 1 && static_key_false(&rps_needed)) { /* Select queue was not called for the skbuff, so we extract the * RPS hash and save it into the flow_table here. */ @@@ -969,6 -982,24 +982,24 @@@ } } #endif + } + + /* Net device start xmit */ + static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev) + { + struct tun_struct *tun = netdev_priv(dev); + int txq = skb->queue_mapping; + struct tun_file *tfile; + + rcu_read_lock(); + tfile = rcu_dereference(tun->tfiles[txq]); + + /* Drop packet if interface is not attached */ + if (txq >= tun->numqueues) + goto drop; + + if (!rcu_dereference(tun->steering_prog)) + tun_automq_xmit(tun, skb); tun_debug(KERN_INFO, tun, "tun_net_xmit %d\n", skb->len); @@@ -1248,12 -1279,12 +1279,12 @@@ static void tun_net_init(struct net_dev /* Character device part */ /* Poll */ -static unsigned int tun_chr_poll(struct file *file, poll_table *wait) +static __poll_t tun_chr_poll(struct file *file, poll_table *wait) { struct tun_file *tfile = file->private_data; struct tun_struct *tun = tun_get(tfile); struct sock *sk; - unsigned int mask = 0; + __poll_t mask = 0; if (!tun) return POLLERR; @@@ -1551,7 -1582,7 +1582,7 @@@ static ssize_t tun_get_user(struct tun_ int copylen; bool zerocopy = false; int err; - u32 rxhash; + u32 rxhash = 0; int skb_xdp = 1; bool frags = tun_napi_frags_enabled(tun); @@@ -1739,7 -1770,10 +1770,10 @@@ rcu_read_unlock(); } - rxhash = __skb_get_hash_symmetric(skb); + rcu_read_lock(); + if (!rcu_dereference(tun->steering_prog)) + rxhash = __skb_get_hash_symmetric(skb); + rcu_read_unlock(); if (frags) { /* Exercise flow dissector code path. */ @@@ -1783,7 -1817,9 +1817,9 @@@ u64_stats_update_end(&stats->syncp); put_cpu_ptr(stats); - tun_flow_update(tun, rxhash, tfile); + if (rxhash) + tun_flow_update(tun, rxhash, tfile); + return total_len; } @@@ -1991,6 -2027,39 +2027,39 @@@ static ssize_t tun_chr_read_iter(struc return ret; } + static void tun_steering_prog_free(struct rcu_head *rcu) + { + struct tun_steering_prog *prog = container_of(rcu, + struct tun_steering_prog, rcu); + + bpf_prog_destroy(prog->prog); + kfree(prog); + } + + static int __tun_set_steering_ebpf(struct tun_struct *tun, + struct bpf_prog *prog) + { + struct tun_steering_prog *old, *new = NULL; + + if (prog) { + new = kmalloc(sizeof(*new), GFP_KERNEL); + if (!new) + return -ENOMEM; + new->prog = prog; + } + + spin_lock_bh(&tun->lock); + old = rcu_dereference_protected(tun->steering_prog, + lockdep_is_held(&tun->lock)); + rcu_assign_pointer(tun->steering_prog, new); + spin_unlock_bh(&tun->lock); + + if (old) + call_rcu(&old->rcu, tun_steering_prog_free); + + return 0; + } + static void tun_free_netdev(struct net_device *dev) { struct tun_struct *tun = netdev_priv(dev); @@@ -1999,6 -2068,7 +2068,7 @@@ free_percpu(tun->pcpu_stats); tun_flow_uninit(tun); security_tun_dev_free_security(tun->security); + __tun_set_steering_ebpf(tun, NULL); } static void tun_setup(struct net_device *dev) @@@ -2287,6 -2357,7 +2357,7 @@@ static int tun_set_iff(struct net *net tun->filter_attached = false; tun->sndbuf = tfile->socket.sk->sk_sndbuf; tun->rx_batched = 0; + RCU_INIT_POINTER(tun->steering_prog, NULL); tun->pcpu_stats = netdev_alloc_pcpu_stats(struct tun_pcpu_stats); if (!tun->pcpu_stats) { @@@ -2479,6 -2550,25 +2550,25 @@@ unlock return ret; } + static int tun_set_steering_ebpf(struct tun_struct *tun, void __user *data) + { + struct bpf_prog *prog; + int fd; + + if (copy_from_user(&fd, data, sizeof(fd))) + return -EFAULT; + + if (fd == -1) { + prog = NULL; + } else { + prog = bpf_prog_get_type(fd, BPF_PROG_TYPE_SOCKET_FILTER); + if (IS_ERR(prog)) + return PTR_ERR(prog); + } + + return __tun_set_steering_ebpf(tun, prog); + } + static long __tun_chr_ioctl(struct file *file, unsigned int cmd, unsigned long arg, int ifreq_len) { @@@ -2755,6 -2845,10 +2845,10 @@@ ret = 0; break; + case TUNSETSTEERINGEBPF: + ret = tun_set_steering_ebpf(tun, argp); + break; + default: ret = -EINVAL; break; diff --combined drivers/net/usb/qmi_wwan.c index 728819feab44,cfaa07f230e5..ae0580b577b8 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@@ -826,7 -826,7 +826,7 @@@ err static const struct driver_info qmi_wwan_info = { .description = "WWAN/QMI device", - .flags = FLAG_WWAN, + .flags = FLAG_WWAN | FLAG_SEND_ZLP, .bind = qmi_wwan_bind, .unbind = qmi_wwan_unbind, .manage_power = qmi_wwan_manage_power, @@@ -835,7 -835,7 +835,7 @@@ static const struct driver_info qmi_wwan_info_quirk_dtr = { .description = "WWAN/QMI device", - .flags = FLAG_WWAN, + .flags = FLAG_WWAN | FLAG_SEND_ZLP, .bind = qmi_wwan_bind, .unbind = qmi_wwan_unbind, .manage_power = qmi_wwan_manage_power, @@@ -1100,7 -1100,6 +1100,7 @@@ static const struct usb_device_id produ {QMI_FIXED_INTF(0x05c6, 0x9084, 4)}, {QMI_FIXED_INTF(0x05c6, 0x920d, 0)}, {QMI_FIXED_INTF(0x05c6, 0x920d, 5)}, + {QMI_QUIRK_SET_DTR(0x05c6, 0x9625, 4)}, /* YUGA CLM920-NC5 */ {QMI_FIXED_INTF(0x0846, 0x68a2, 8)}, {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */ {QMI_FIXED_INTF(0x12d1, 0x14ac, 1)}, /* Huawei E1820 */ diff --combined fs/btrfs/disk-io.c index f334d4eaa644,5da18ebc9222..ed93324ec9f0 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@@ -30,6 -30,7 +30,7 @@@ #include <linux/ratelimit.h> #include <linux/uuid.h> #include <linux/semaphore.h> + #include <linux/bpf.h> #include <asm/unaligned.h> #include "ctree.h" #include "disk-io.h" @@@ -220,7 -221,7 +221,7 @@@ void btrfs_set_buffer_lockdep_class(u6 * extents on the btree inode are pretty simple, there's one extent * that covers the entire device */ -static struct extent_map *btree_get_extent(struct btrfs_inode *inode, +struct extent_map *btree_get_extent(struct btrfs_inode *inode, struct page *page, size_t pg_offset, u64 start, u64 len, int create) { @@@ -285,7 -286,7 +286,7 @@@ static int csum_tree_block(struct btrfs int verify) { u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); - char *result = NULL; + char result[BTRFS_CSUM_SIZE]; unsigned long len; unsigned long cur_len; unsigned long offset = BTRFS_CSUM_SIZE; @@@ -294,6 -295,7 +295,6 @@@ unsigned long map_len; int err; u32 crc = ~(u32)0; - unsigned long inline_result; len = buf->len - offset; while (len > 0) { @@@ -307,7 -309,13 +308,7 @@@ len -= cur_len; offset += cur_len; } - if (csum_size > sizeof(inline_result)) { - result = kzalloc(csum_size, GFP_NOFS); - if (!result) - return -ENOMEM; - } else { - result = (char *)&inline_result; - } + memset(result, 0, BTRFS_CSUM_SIZE); btrfs_csum_final(crc, result); @@@ -322,12 -330,15 +323,12 @@@ "%s checksum verify failed on %llu wanted %X found %X level %d", fs_info->sb->s_id, buf->start, val, found, btrfs_header_level(buf)); - if (result != (char *)&inline_result) - kfree(result); return -EUCLEAN; } } else { write_extent_buffer(buf, result, 0, csum_size); } - if (result != (char *)&inline_result) - kfree(result); + return 0; } @@@ -381,7 -392,7 +382,7 @@@ static int verify_parent_transid(struc clear_extent_buffer_uptodate(eb); out: unlock_extent_cached(io_tree, eb->start, eb->start + eb->len - 1, - &cached_state, GFP_NOFS); + &cached_state); if (need_lock) btrfs_tree_read_unlock_blocking(eb); return ret; @@@ -445,7 -456,7 +446,7 @@@ static int btree_read_extent_buffer_pag io_tree = &BTRFS_I(fs_info->btree_inode)->io_tree; while (1) { ret = read_extent_buffer_pages(io_tree, eb, WAIT_COMPLETE, - btree_get_extent, mirror_num); + mirror_num); if (!ret) { if (!verify_parent_transid(io_tree, eb, parent_transid, 0)) @@@ -855,8 -866,6 +856,8 @@@ static blk_status_t btree_submit_bio_ho int async = check_async_write(BTRFS_I(inode)); blk_status_t ret; + bio_associate_blkcg(bio, blkcg_root_css); + if (bio_op(bio) != REQ_OP_WRITE) { /* * called for a read, do the setup so that checksum validation @@@ -1004,7 -1013,7 +1005,7 @@@ void readahead_tree_block(struct btrfs_ if (IS_ERR(buf)) return; read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree, - buf, WAIT_NONE, btree_get_extent, 0); + buf, WAIT_NONE, 0); free_extent_buffer(buf); } @@@ -1023,7 -1032,7 +1024,7 @@@ int reada_tree_block_flagged(struct btr set_bit(EXTENT_BUFFER_READAHEAD, &buf->bflags); ret = read_extent_buffer_pages(io_tree, buf, WAIT_PAGE_LOCK, - btree_get_extent, mirror_num); + mirror_num); if (ret) { free_extent_buffer(buf); return ret; @@@ -1160,7 -1169,6 +1161,7 @@@ static void __setup_root(struct btrfs_r spin_lock_init(&root->accounting_lock); spin_lock_init(&root->log_extents_lock[0]); spin_lock_init(&root->log_extents_lock[1]); + spin_lock_init(&root->qgroup_meta_rsv_lock); mutex_init(&root->objectid_mutex); mutex_init(&root->log_mutex); mutex_init(&root->ordered_extent_mutex); @@@ -1177,6 -1185,7 +1178,6 @@@ atomic_set(&root->orphan_inodes, 0); refcount_set(&root->refs, 1); atomic_set(&root->will_be_snapshotted, 0); - atomic64_set(&root->qgroup_meta_rsv, 0); root->log_transid = 0; root->log_transid_committed = -1; root->last_log_commit = 0; @@@ -1235,7 -1244,7 +1236,7 @@@ struct btrfs_root *btrfs_create_tree(st struct btrfs_root *root; struct btrfs_key key; int ret = 0; - uuid_le uuid; + uuid_le uuid = { 0 }; root = btrfs_alloc_root(fs_info, GFP_KERNEL); if (!root) @@@ -1276,8 -1285,7 +1277,8 @@@ btrfs_set_root_used(&root->root_item, leaf->len); btrfs_set_root_last_snapshot(&root->root_item, 0); btrfs_set_root_dirid(&root->root_item, 0); - uuid_le_gen(&uuid); + if (is_fstree(objectid)) + uuid_le_gen(&uuid); memcpy(root->root_item.uuid, uuid.b, BTRFS_UUID_SIZE); root->root_item.drop_level = 0; @@@ -2868,7 -2876,7 +2869,7 @@@ retry_root_backup goto fail_sysfs; } - if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info)) { + if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info, NULL)) { btrfs_warn(fs_info, "writeable mount is not allowed due to too many missing devices"); goto fail_sysfs; @@@ -3116,6 -3124,7 +3117,7 @@@ recovery_tree_root goto fail_block_groups; goto retry_root_backup; } + BPF_ALLOW_ERROR_INJECTION(open_ctree); static void btrfs_end_buffer_write_sync(struct buffer_head *bh, int uptodate) { @@@ -3343,8 -3352,6 +3345,8 @@@ static void write_dev_flush(struct btrf return; bio_reset(bio); + bio_associate_blkcg(bio, blkcg_root_css); + bio->bi_end_io = btrfs_end_empty_barrier; bio_set_dev(bio, device->bdev); bio->bi_opf = REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH; @@@ -3352,7 -3359,7 +3354,7 @@@ bio->bi_private = &device->flush_wait; btrfsic_submit_bio(bio); - device->flush_bio_sent = 1; + set_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state); } /* @@@ -3362,10 -3369,10 +3364,10 @@@ static blk_status_t wait_dev_flush(stru { struct bio *bio = device->flush_bio; - if (!device->flush_bio_sent) + if (!test_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state)) return BLK_STS_OK; - device->flush_bio_sent = 0; + clear_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state); wait_for_completion_io(&device->flush_wait); return bio->bi_status; @@@ -3373,7 -3380,7 +3375,7 @@@ static int check_barrier_error(struct btrfs_fs_info *fs_info) { - if (!btrfs_check_rw_degradable(fs_info)) + if (!btrfs_check_rw_degradable(fs_info, NULL)) return -EIO; return 0; } @@@ -3389,16 -3396,14 +3391,16 @@@ static int barrier_all_devices(struct b int errors_wait = 0; blk_status_t ret; + lockdep_assert_held(&info->fs_devices->device_list_mutex); /* send down all the barriers */ head = &info->fs_devices->devices; - list_for_each_entry_rcu(dev, head, dev_list) { - if (dev->missing) + list_for_each_entry(dev, head, dev_list) { + if (test_bit(BTRFS_DEV_STATE_MISSING, &dev->dev_state)) continue; if (!dev->bdev) continue; - if (!dev->in_fs_metadata || !dev->writeable) + if (!test_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &dev->dev_state) || + !test_bit(BTRFS_DEV_STATE_WRITEABLE, &dev->dev_state)) continue; write_dev_flush(dev); @@@ -3406,15 -3411,14 +3408,15 @@@ } /* wait for all the barriers */ - list_for_each_entry_rcu(dev, head, dev_list) { - if (dev->missing) + list_for_each_entry(dev, head, dev_list) { + if (test_bit(BTRFS_DEV_STATE_MISSING, &dev->dev_state)) continue; if (!dev->bdev) { errors_wait++; continue; } - if (!dev->in_fs_metadata || !dev->writeable) + if (!test_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &dev->dev_state) || + !test_bit(BTRFS_DEV_STATE_WRITEABLE, &dev->dev_state)) continue; ret = wait_dev_flush(dev); @@@ -3506,13 -3510,12 +3508,13 @@@ int write_all_supers(struct btrfs_fs_in } } - list_for_each_entry_rcu(dev, head, dev_list) { + list_for_each_entry(dev, head, dev_list) { if (!dev->bdev) { total_errors++; continue; } - if (!dev->in_fs_metadata || !dev->writeable) + if (!test_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &dev->dev_state) || + !test_bit(BTRFS_DEV_STATE_WRITEABLE, &dev->dev_state)) continue; btrfs_set_stack_device_generation(dev_item, 0); @@@ -3548,11 -3551,10 +3550,11 @@@ } total_errors = 0; - list_for_each_entry_rcu(dev, head, dev_list) { + list_for_each_entry(dev, head, dev_list) { if (!dev->bdev) continue; - if (!dev->in_fs_metadata || !dev->writeable) + if (!test_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &dev->dev_state) || + !test_bit(BTRFS_DEV_STATE_WRITEABLE, &dev->dev_state)) continue; ret = wait_dev_supers(dev, max_mirrors); diff --combined fs/btrfs/free-space-cache.c index 9e8c1f046e02,fb1382893bfc..9088b0b0d10f --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@@ -22,6 -22,7 +22,7 @@@ #include <linux/slab.h> #include <linux/math64.h> #include <linux/ratelimit.h> + #include <linux/bpf.h> #include "ctree.h" #include "free-space-cache.h" #include "transaction.h" @@@ -332,6 -333,7 +333,7 @@@ static int io_ctl_init(struct btrfs_io_ return 0; } + BPF_ALLOW_ERROR_INJECTION(io_ctl_init); static void io_ctl_free(struct btrfs_io_ctl *io_ctl) { @@@ -993,7 -995,8 +995,7 @@@ update_cache_item(struct btrfs_trans_ha ret = btrfs_search_slot(trans, root, &key, path, 0, 1); if (ret < 0) { clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, inode->i_size - 1, - EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, NULL, - GFP_NOFS); + EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, NULL); goto fail; } leaf = path->nodes[0]; @@@ -1007,7 -1010,7 +1009,7 @@@ clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, inode->i_size - 1, EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, - NULL, GFP_NOFS); + NULL); btrfs_release_path(path); goto fail; } @@@ -1104,7 -1107,8 +1106,7 @@@ static int flush_dirty_cache(struct ino ret = btrfs_wait_ordered_range(inode, 0, (u64)-1); if (ret) clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, inode->i_size - 1, - EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, NULL, - GFP_NOFS); + EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, NULL); return ret; } @@@ -1125,7 -1129,8 +1127,7 @@@ cleanup_write_cache_enospc(struct inod { io_ctl_drop_pages(io_ctl); unlock_extent_cached(&BTRFS_I(inode)->io_tree, 0, - i_size_read(inode) - 1, cached_state, - GFP_NOFS); + i_size_read(inode) - 1, cached_state); } static int __btrfs_wait_cache_io(struct btrfs_root *root, @@@ -1319,7 -1324,7 +1321,7 @@@ static int __btrfs_write_out_cache(stru io_ctl_drop_pages(io_ctl); unlock_extent_cached(&BTRFS_I(inode)->io_tree, 0, - i_size_read(inode) - 1, &cached_state, GFP_NOFS); + i_size_read(inode) - 1, &cached_state); /* * at this point the pages are under IO and we're happy, @@@ -3545,7 -3550,7 +3547,7 @@@ int btrfs_write_out_ino_cache(struct bt if (ret) { if (release_metadata) btrfs_delalloc_release_metadata(BTRFS_I(inode), - inode->i_size); + inode->i_size, true); #ifdef DEBUG btrfs_err(fs_info, "failed to write free ino cache for root %llu", diff --combined include/linux/bpf.h index b63a592ad29d,da54ef644fcd..0dcd1d7c9825 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@@ -200,6 -200,9 +200,9 @@@ struct bpf_prog_aux u32 max_ctx_offset; u32 stack_depth; u32 id; + u32 func_cnt; + struct bpf_prog **func; + void *jit_data; /* JIT specific data. arch dependent */ struct latch_tree_node ksym_tnode; struct list_head ksym_lnode; const struct bpf_prog_ops *ops; @@@ -285,6 -288,9 +288,9 @@@ int bpf_prog_array_copy_to_user(struct void bpf_prog_array_delete_safe(struct bpf_prog_array __rcu *progs, struct bpf_prog *old_prog); + int bpf_prog_array_copy_info(struct bpf_prog_array __rcu *array, + __u32 __user *prog_ids, u32 request_cnt, + __u32 __user *prog_cnt); int bpf_prog_array_copy(struct bpf_prog_array __rcu *old_array, struct bpf_prog *exclude_prog, struct bpf_prog *include_prog, @@@ -399,6 -405,7 +405,7 @@@ static inline void bpf_long_memcpy(voi /* verify correctness of eBPF program */ int bpf_check(struct bpf_prog **fp, union bpf_attr *attr); + void bpf_patch_call_args(struct bpf_insn *insn, u32 stack_depth); /* Map specifics */ struct net_device *__dev_map_lookup_elem(struct bpf_map *map, u32 key); @@@ -419,8 -426,6 +426,8 @@@ static inline int bpf_map_attr_numa_nod attr->numa_node : NUMA_NO_NODE; } +struct bpf_prog *bpf_prog_get_type_path(const char *name, enum bpf_prog_type type); + #else /* !CONFIG_BPF_SYSCALL */ static inline struct bpf_prog *bpf_prog_get(u32 ufd) { @@@ -508,12 -513,6 +515,12 @@@ static inline int cpu_map_enqueue(struc { return 0; } + +static inline struct bpf_prog *bpf_prog_get_type_path(const char *name, + enum bpf_prog_type type) +{ + return ERR_PTR(-EOPNOTSUPP); +} #endif /* CONFIG_BPF_SYSCALL */ static inline struct bpf_prog *bpf_prog_get_type(u32 ufd, @@@ -522,8 -521,6 +529,8 @@@ return bpf_prog_get_type_dev(ufd, type, false); } +bool bpf_prog_get_ok(struct bpf_prog *, enum bpf_prog_type *, bool); + int bpf_prog_offload_compile(struct bpf_prog *prog); void bpf_prog_offload_destroy(struct bpf_prog *prog); @@@ -586,4 -583,15 +593,15 @@@ extern const struct bpf_func_proto bpf_ void bpf_user_rnd_init_once(void); u64 bpf_user_rnd_u32(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5); + #if defined(__KERNEL__) && !defined(__ASSEMBLY__) + #ifdef CONFIG_BPF_KPROBE_OVERRIDE + #define BPF_ALLOW_ERROR_INJECTION(fname) \ + static unsigned long __used \ + __attribute__((__section__("_kprobe_error_inject_list"))) \ + _eil_addr_##fname = (unsigned long)fname; + #else + #define BPF_ALLOW_ERROR_INJECTION(fname) + #endif + #endif + #endif /* _LINUX_BPF_H */ diff --combined include/linux/module.h index e6249795f9e2,548fa09fa806..0fd65481c045 --- a/include/linux/module.h +++ b/include/linux/module.h @@@ -475,6 -475,11 +475,11 @@@ struct module ctor_fn_t *ctors; unsigned int num_ctors; #endif + + #ifdef CONFIG_BPF_KPROBE_OVERRIDE + unsigned int num_kprobe_ei_funcs; + unsigned long *kprobe_ei_funcs; + #endif } ____cacheline_aligned __randomize_layout; #ifndef MODULE_ARCH_INIT #define MODULE_ARCH_INIT {} @@@ -606,9 -611,6 +611,9 @@@ int ref_module(struct module *a, struc __mod ? __mod->name : "kernel"; \ }) +/* Dereference module function descriptor */ +void *dereference_module_function_descriptor(struct module *mod, void *ptr); + /* For kallsyms to ask for address resolution. namebuf should be at * least KSYM_NAME_LEN long: a pointer to namebuf is returned if * found, otherwise NULL. */ @@@ -763,13 -765,6 +768,13 @@@ static inline bool is_module_sig_enforc return false; } +/* Dereference module function descriptor */ +static inline +void *dereference_module_function_descriptor(struct module *mod, void *ptr) +{ + return ptr; +} + #endif /* CONFIG_MODULES */ #ifdef CONFIG_SYSFS diff --combined include/linux/pci.h index 95807535d175,0314e0716c30..66cca1c6f742 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@@ -48,17 -48,17 +48,17 @@@ * In the interest of not exposing interfaces to user-space unnecessarily, * the following kernel-only defines are being added here. */ -#define PCI_DEVID(bus, devfn) ((((u16)(bus)) << 8) | (devfn)) +#define PCI_DEVID(bus, devfn) ((((u16)(bus)) << 8) | (devfn)) /* return bus from PCI devid = ((u16)bus_number) << 8) | devfn */ #define PCI_BUS_NUM(x) (((x) >> 8) & 0xff) /* pci_slot represents a physical slot */ struct pci_slot { - struct pci_bus *bus; /* The bus this slot is on */ - struct list_head list; /* node in list of slots on this bus */ - struct hotplug_slot *hotplug; /* Hotplug info (migrate over time) */ - unsigned char number; /* PCI_SLOT(pci_dev->devfn) */ - struct kobject kobj; + struct pci_bus *bus; /* Bus this slot is on */ + struct list_head list; /* Node in list of slots */ + struct hotplug_slot *hotplug; /* Hotplug info (move here) */ + unsigned char number; /* PCI_SLOT(pci_dev->devfn) */ + struct kobject kobj; }; static inline const char *pci_slot_name(const struct pci_slot *slot) @@@ -72,7 -72,9 +72,7 @@@ enum pci_mmap_state pci_mmap_mem }; -/* - * For PCI devices, the region numbers are assigned this way: - */ +/* For PCI devices, the region numbers are assigned this way: */ enum { /* #0-5: standard PCI resources */ PCI_STD_RESOURCES, @@@ -81,23 -83,23 +81,23 @@@ /* #6: expansion ROM resource */ PCI_ROM_RESOURCE, - /* device specific resources */ + /* Device-specific resources */ #ifdef CONFIG_PCI_IOV PCI_IOV_RESOURCES, PCI_IOV_RESOURCE_END = PCI_IOV_RESOURCES + PCI_SRIOV_NUM_BARS - 1, #endif - /* resources assigned to buses behind the bridge */ + /* Resources assigned to buses behind the bridge */ #define PCI_BRIDGE_RESOURCE_NUM 4 PCI_BRIDGE_RESOURCES, PCI_BRIDGE_RESOURCE_END = PCI_BRIDGE_RESOURCES + PCI_BRIDGE_RESOURCE_NUM - 1, - /* total resources associated with a PCI device */ + /* Total resources associated with a PCI device */ PCI_NUM_RESOURCES, - /* preserve this for compatibility */ + /* Preserve this for compatibility */ DEVICE_COUNT_RESOURCE = PCI_NUM_RESOURCES, }; @@@ -150,10 -152,9 +150,10 @@@ static inline const char *pci_power_nam #define PCI_PM_D3COLD_WAIT 100 #define PCI_PM_BUS_WAIT 50 -/** The pci_channel state describes connectivity between the CPU and - * the pci device. If some PCI bus between here and the pci device - * has crashed or locked up, this info is reflected here. +/** + * The pci_channel state describes connectivity between the CPU and + * the PCI device. If some PCI bus between here and the PCI device + * has crashed or locked up, this info is reflected here. */ typedef unsigned int __bitwise pci_channel_state_t; @@@ -183,7 -184,9 +183,7 @@@ enum pcie_reset_state typedef unsigned short __bitwise pci_dev_flags_t; enum pci_dev_flags { - /* INTX_DISABLE in PCI_COMMAND register disables MSI - * generation too. - */ + /* INTX_DISABLE in PCI_COMMAND register disables MSI too */ PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG = (__force pci_dev_flags_t) (1 << 0), /* Device configuration is irrevocably lost if disabled into D3 */ PCI_DEV_FLAGS_NO_D3 = (__force pci_dev_flags_t) (1 << 1), @@@ -199,7 -202,7 +199,7 @@@ PCI_DEV_FLAGS_NO_PM_RESET = (__force pci_dev_flags_t) (1 << 7), /* Get VPD from function 0 VPD */ PCI_DEV_FLAGS_VPD_REF_F0 = (__force pci_dev_flags_t) (1 << 8), - /* a non-root bridge where translation occurs, stop alias search here */ + /* A non-root bridge where translation occurs, stop alias search here */ PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT = (__force pci_dev_flags_t) (1 << 9), /* Do not use FLR even if device advertises PCI_AF_CAP */ PCI_DEV_FLAGS_NO_FLR_RESET = (__force pci_dev_flags_t) (1 << 10), @@@ -219,17 -222,17 +219,17 @@@ enum pci_bus_flags PCI_BUS_FLAGS_NO_AERSID = (__force pci_bus_flags_t) 4, }; -/* These values come from the PCI Express Spec */ +/* Values from Link Status register, PCIe r3.1, sec 7.8.8 */ enum pcie_link_width { PCIE_LNK_WIDTH_RESRV = 0x00, PCIE_LNK_X1 = 0x01, PCIE_LNK_X2 = 0x02, PCIE_LNK_X4 = 0x04, PCIE_LNK_X8 = 0x08, - PCIE_LNK_X12 = 0x0C, + PCIE_LNK_X12 = 0x0c, PCIE_LNK_X16 = 0x10, PCIE_LNK_X32 = 0x20, - PCIE_LNK_WIDTH_UNKNOWN = 0xFF, + PCIE_LNK_WIDTH_UNKNOWN = 0xff, }; /* Based on the PCI Hotplug Spec, but some values are made up by us */ @@@ -260,15 -263,15 +260,15 @@@ enum pci_bus_speed }; struct pci_cap_saved_data { - u16 cap_nr; - bool cap_extended; - unsigned int size; - u32 data[0]; + u16 cap_nr; + bool cap_extended; + unsigned int size; + u32 data[0]; }; struct pci_cap_saved_state { - struct hlist_node next; - struct pci_cap_saved_data cap; + struct hlist_node next; + struct pci_cap_saved_data cap; }; struct irq_affinity; @@@ -277,17 -280,19 +277,17 @@@ struct pci_vpd struct pci_sriov; struct pci_ats; -/* - * The pci_dev structure is used to describe PCI devices. - */ +/* The pci_dev structure describes PCI devices */ struct pci_dev { - struct list_head bus_list; /* node in per-bus list */ - struct pci_bus *bus; /* bus this device is on */ - struct pci_bus *subordinate; /* bus this device bridges to */ + struct list_head bus_list; /* Node in per-bus list */ + struct pci_bus *bus; /* Bus this device is on */ + struct pci_bus *subordinate; /* Bus this device bridges to */ - void *sysdata; /* hook for sys-specific extension */ - struct proc_dir_entry *procent; /* device entry in /proc/bus/pci */ + void *sysdata; /* Hook for sys-specific extension */ + struct proc_dir_entry *procent; /* Device entry in /proc/bus/pci */ struct pci_slot *slot; /* Physical slot this device is in */ - unsigned int devfn; /* encoded device & function index */ + unsigned int devfn; /* Encoded device & function index */ unsigned short vendor; unsigned short device; unsigned short subsystem_vendor; @@@ -302,12 -307,12 +302,12 @@@ u8 msi_cap; /* MSI capability offset */ u8 msix_cap; /* MSI-X capability offset */ u8 pcie_mpss:3; /* PCIe Max Payload Size Supported */ - u8 rom_base_reg; /* which config register controls the ROM */ - u8 pin; /* which interrupt pin this device uses */ - u16 pcie_flags_reg; /* cached PCIe Capabilities Register */ - unsigned long *dma_alias_mask;/* mask of enabled devfn aliases */ + u8 rom_base_reg; /* Config register controlling ROM */ + u8 pin; /* Interrupt pin this device uses */ + u16 pcie_flags_reg; /* Cached PCIe Capabilities Register */ + unsigned long *dma_alias_mask;/* Mask of enabled devfn aliases */ - struct pci_driver *driver; /* which driver has allocated this device */ + struct pci_driver *driver; /* Driver bound to this device */ u64 dma_mask; /* Mask of the bits of bus address this device implements. Normally this is 0xffffffff. You only need to change @@@ -316,9 -321,9 +316,9 @@@ struct device_dma_parameters dma_parms; - pci_power_t current_state; /* Current operating state. In ACPI-speak, - this is D0-D3, D0 being fully functional, - and D3 being off. */ + pci_power_t current_state; /* Current operating state. In ACPI, + this is D0-D3, D0 being fully + functional, and D3 being off. */ u8 pm_cap; /* PM capability offset */ unsigned int pme_support:5; /* Bitmask of states from which PME# can be generated */ @@@ -329,10 -334,10 +329,10 @@@ unsigned int no_d3cold:1; /* D3cold is forbidden */ unsigned int bridge_d3:1; /* Allow D3 for bridge */ unsigned int d3cold_allowed:1; /* D3cold is allowed by user */ - unsigned int mmio_always_on:1; /* disallow turning off io/mem - decoding during bar sizing */ + unsigned int mmio_always_on:1; /* Disallow turning off io/mem + decoding during BAR sizing */ unsigned int wakeup_prepared:1; - unsigned int runtime_d3cold:1; /* whether go through runtime + unsigned int runtime_d3cold:1; /* Whether go through runtime D3cold, not set for devices powered on/off by the corresponding bridge */ @@@ -345,14 -350,12 +345,14 @@@ #ifdef CONFIG_PCIEASPM struct pcie_link_state *link_state; /* ASPM link state */ + unsigned int ltr_path:1; /* Latency Tolerance Reporting + supported from root to here */ #endif - pci_channel_state_t error_state; /* current connectivity state */ - struct device dev; /* Generic device interface */ + pci_channel_state_t error_state; /* Current connectivity state */ + struct device dev; /* Generic device interface */ - int cfg_size; /* Size of configuration space */ + int cfg_size; /* Size of config space */ /* * Instead of touching interrupt line and base address registers @@@ -361,47 -364,47 +361,47 @@@ unsigned int irq; struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */ - bool match_driver; /* Skip attaching driver */ - /* These fields are used by common fixups */ - unsigned int transparent:1; /* Subtractive decode PCI bridge */ - unsigned int multifunction:1;/* Part of multi-function device */ - /* keep track of device state */ + bool match_driver; /* Skip attaching driver */ + + unsigned int transparent:1; /* Subtractive decode bridge */ + unsigned int multifunction:1; /* Multi-function device */ + unsigned int is_added:1; - unsigned int is_busmaster:1; /* device is busmaster */ - unsigned int no_msi:1; /* device may not use msi */ - unsigned int no_64bit_msi:1; /* device may only use 32-bit MSIs */ - unsigned int block_cfg_access:1; /* config space access is blocked */ - unsigned int broken_parity_status:1; /* Device generates false positive parity */ - unsigned int irq_reroute_variant:2; /* device needs IRQ rerouting variant */ + unsigned int is_busmaster:1; /* Is busmaster */ + unsigned int no_msi:1; /* May not use MSI */ + unsigned int no_64bit_msi:1; /* May only use 32-bit MSIs */ + unsigned int block_cfg_access:1; /* Config space access blocked */ + unsigned int broken_parity_status:1; /* Generates false positive parity */ + unsigned int irq_reroute_variant:2; /* Needs IRQ rerouting variant */ unsigned int msi_enabled:1; unsigned int msix_enabled:1; - unsigned int ari_enabled:1; /* ARI forwarding */ - unsigned int ats_enabled:1; /* Address Translation Service */ + unsigned int ari_enabled:1; /* ARI forwarding */ + unsigned int ats_enabled:1; /* Address Translation Svc */ unsigned int pasid_enabled:1; /* Process Address Space ID */ unsigned int pri_enabled:1; /* Page Request Interface */ unsigned int is_managed:1; - unsigned int needs_freset:1; /* Dev requires fundamental reset */ + unsigned int needs_freset:1; /* Requires fundamental reset */ unsigned int state_saved:1; unsigned int is_physfn:1; unsigned int is_virtfn:1; unsigned int reset_fn:1; - unsigned int is_hotplug_bridge:1; - unsigned int is_thunderbolt:1; /* Thunderbolt controller */ - unsigned int __aer_firmware_first_valid:1; + unsigned int is_hotplug_bridge:1; + unsigned int is_thunderbolt:1; /* Thunderbolt controller */ + unsigned int __aer_firmware_first_valid:1; unsigned int __aer_firmware_first:1; - unsigned int broken_intx_masking:1; /* INTx masking can't be used */ - unsigned int io_window_1k:1; /* Intel P2P bridge 1K I/O windows */ + unsigned int broken_intx_masking:1; /* INTx masking can't be used */ + unsigned int io_window_1k:1; /* Intel bridge 1K I/O windows */ unsigned int irq_managed:1; unsigned int has_secondary_link:1; - unsigned int non_compliant_bars:1; /* broken BARs; ignore them */ - unsigned int is_probed:1; /* device probing in progress */ + unsigned int non_compliant_bars:1; /* Broken BARs; ignore them */ + unsigned int is_probed:1; /* Device probing in progress */ pci_dev_flags_t dev_flags; atomic_t enable_cnt; /* pci_enable_device has been called */ - u32 saved_config_space[16]; /* config space saved at suspend time */ + u32 saved_config_space[16]; /* Config space saved at suspend time */ struct hlist_head saved_cap_space; - struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */ - int rom_attr_enabled; /* has display of the rom attribute been enabled? */ + struct bin_attribute *rom_attr; /* Attribute descriptor for sysfs ROM entry */ + int rom_attr_enabled; /* Display of ROM attribute enabled? */ struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */ struct bin_attribute *res_attr_wc[DEVICE_COUNT_RESOURCE]; /* sysfs file for WC mapping of resources */ @@@ -416,12 -419,12 +416,12 @@@ struct pci_vpd *vpd; #ifdef CONFIG_PCI_ATS union { - struct pci_sriov *sriov; /* SR-IOV capability related */ - struct pci_dev *physfn; /* the PF this VF is associated with */ + struct pci_sriov *sriov; /* PF: SR-IOV info */ + struct pci_dev *physfn; /* VF: related PF */ }; u16 ats_cap; /* ATS Capability offset */ u8 ats_stu; /* ATS Smallest Translation Unit */ - atomic_t ats_ref_cnt; /* number of VFs with ATS enabled */ + atomic_t ats_ref_cnt; /* Number of VFs with ATS enabled */ #endif #ifdef CONFIG_PCI_PRI u32 pri_reqs_alloc; /* Number of PRI requests allocated */ @@@ -429,11 -432,11 +429,11 @@@ #ifdef CONFIG_PCI_PASID u16 pasid_features; #endif - phys_addr_t rom; /* Physical address of ROM if it's not from the BAR */ - size_t romlen; /* Length of ROM if it's not from the BAR */ - char *driver_override; /* Driver name to force a match */ + phys_addr_t rom; /* Physical address if not from BAR */ + size_t romlen; /* Length if not from BAR */ + char *driver_override; /* Driver name to force a match */ - unsigned long priv_flags; /* Private flags for the pci driver */ + unsigned long priv_flags; /* Private flags for the PCI driver */ }; static inline struct pci_dev *pci_physfn(struct pci_dev *dev) @@@ -456,26 -459,26 +456,26 @@@ static inline int pci_channel_offline(s } struct pci_host_bridge { - struct device dev; - struct pci_bus *bus; /* root bus */ - struct pci_ops *ops; - void *sysdata; - int busnr; + struct device dev; + struct pci_bus *bus; /* Root bus */ + struct pci_ops *ops; + void *sysdata; + int busnr; struct list_head windows; /* resource_entry */ - u8 (*swizzle_irq)(struct pci_dev *, u8 *); /* platform IRQ swizzler */ + u8 (*swizzle_irq)(struct pci_dev *, u8 *); /* Platform IRQ swizzler */ int (*map_irq)(const struct pci_dev *, u8, u8); void (*release_fn)(struct pci_host_bridge *); - void *release_data; + void *release_data; struct msi_controller *msi; - unsigned int ignore_reset_delay:1; /* for entire hierarchy */ - unsigned int no_ext_tags:1; /* no Extended Tags */ + unsigned int ignore_reset_delay:1; /* For entire hierarchy */ + unsigned int no_ext_tags:1; /* No Extended Tags */ /* Resource alignment requirements */ resource_size_t (*align_resource)(struct pci_dev *dev, const struct resource *res, resource_size_t start, resource_size_t size, resource_size_t align); - unsigned long private[0] ____cacheline_aligned; + unsigned long private[0] ____cacheline_aligned; }; #define to_pci_host_bridge(n) container_of(n, struct pci_host_bridge, dev) @@@ -497,8 -500,8 +497,8 @@@ void pci_free_host_bridge(struct pci_ho struct pci_host_bridge *pci_find_host_bridge(struct pci_bus *bus); void pci_set_host_bridge_release(struct pci_host_bridge *bridge, - void (*release_fn)(struct pci_host_bridge *), - void *release_data); + void (*release_fn)(struct pci_host_bridge *), + void *release_data); int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge); @@@ -518,32 -521,32 +518,32 @@@ #define PCI_SUBTRACTIVE_DECODE 0x1 struct pci_bus_resource { - struct list_head list; - struct resource *res; - unsigned int flags; + struct list_head list; + struct resource *res; + unsigned int flags; }; #define PCI_REGION_FLAG_MASK 0x0fU /* These bits of resource flags tell us the PCI region flags */ struct pci_bus { - struct list_head node; /* node in list of buses */ - struct pci_bus *parent; /* parent bus this bridge is on */ - struct list_head children; /* list of child buses */ - struct list_head devices; /* list of devices on this bus */ - struct pci_dev *self; /* bridge device as seen by parent */ - struct list_head slots; /* list of slots on this bus; + struct list_head node; /* Node in list of buses */ + struct pci_bus *parent; /* Parent bus this bridge is on */ + struct list_head children; /* List of child buses */ + struct list_head devices; /* List of devices on this bus */ + struct pci_dev *self; /* Bridge device as seen by parent */ + struct list_head slots; /* List of slots on this bus; protected by pci_slot_mutex */ struct resource *resource[PCI_BRIDGE_RESOURCE_NUM]; - struct list_head resources; /* address space routed to this bus */ - struct resource busn_res; /* bus numbers routed to this bus */ + struct list_head resources; /* Address space routed to this bus */ + struct resource busn_res; /* Bus numbers routed to this bus */ - struct pci_ops *ops; /* configuration access functions */ + struct pci_ops *ops; /* Configuration access functions */ struct msi_controller *msi; /* MSI controller */ - void *sysdata; /* hook for sys-specific extension */ - struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */ + void *sysdata; /* Hook for sys-specific extension */ + struct proc_dir_entry *procdir; /* Directory entry in /proc/bus/pci */ - unsigned char number; /* bus number */ - unsigned char primary; /* number of primary bridge */ + unsigned char number; /* Bus number */ + unsigned char primary; /* Number of primary bridge */ unsigned char max_bus_speed; /* enum pci_bus_speed */ unsigned char cur_bus_speed; /* enum pci_bus_speed */ #ifdef CONFIG_PCI_DOMAINS_GENERIC @@@ -552,12 -555,12 +552,12 @@@ char name[48]; - unsigned short bridge_ctl; /* manage NO_ISA/FBB/et al behaviors */ - pci_bus_flags_t bus_flags; /* inherited by child buses */ + unsigned short bridge_ctl; /* Manage NO_ISA/FBB/et al behaviors */ + pci_bus_flags_t bus_flags; /* Inherited by child buses */ struct device *bridge; struct device dev; - struct bin_attribute *legacy_io; /* legacy I/O for this bus */ - struct bin_attribute *legacy_mem; /* legacy mem */ + struct bin_attribute *legacy_io; /* Legacy I/O for this bus */ + struct bin_attribute *legacy_mem; /* Legacy mem */ unsigned int is_added:1; }; @@@ -614,7 -617,9 +614,7 @@@ static inline bool pci_dev_msi_enabled( static inline bool pci_dev_msi_enabled(struct pci_dev *pci_dev) { return false; } #endif -/* - * Error values that may be returned by PCI functions. - */ +/* Error values that may be returned by PCI functions */ #define PCIBIOS_SUCCESSFUL 0x00 #define PCIBIOS_FUNC_NOT_SUPPORTED 0x81 #define PCIBIOS_BAD_VENDOR_ID 0x83 @@@ -623,7 -628,9 +623,7 @@@ #define PCIBIOS_SET_FAILED 0x88 #define PCIBIOS_BUFFER_TOO_SMALL 0x89 -/* - * Translate above to generic errno for passing back through non-PCI code. - */ +/* Translate above to generic errno for passing back through non-PCI code */ static inline int pcibios_err_to_errno(int err) { if (err <= PCIBIOS_SUCCESSFUL) @@@ -673,13 -680,13 +673,13 @@@ typedef u32 pci_bus_addr_t #endif struct pci_bus_region { - pci_bus_addr_t start; - pci_bus_addr_t end; + pci_bus_addr_t start; + pci_bus_addr_t end; }; struct pci_dynids { - spinlock_t lock; /* protects list, index */ - struct list_head list; /* for IDs added at runtime */ + spinlock_t lock; /* Protects list, index */ + struct list_head list; /* For IDs added at runtime */ }; @@@ -693,13 -700,13 +693,13 @@@ typedef unsigned int __bitwise pci_ers_result_t; enum pci_ers_result { - /* no result/none/not supported in device driver */ + /* No result/none/not supported in device driver */ PCI_ERS_RESULT_NONE = (__force pci_ers_result_t) 1, /* Device driver can recover without slot reset */ PCI_ERS_RESULT_CAN_RECOVER = (__force pci_ers_result_t) 2, - /* Device driver wants slot to be reset. */ + /* Device driver wants slot to be reset */ PCI_ERS_RESULT_NEED_RESET = (__force pci_ers_result_t) 3, /* Device has completely failed, is unrecoverable */ @@@ -735,27 -742,27 +735,27 @@@ struct pci_error_handlers struct module; struct pci_driver { - struct list_head node; - const char *name; - const struct pci_device_id *id_table; /* must be non-NULL for probe to be called */ - int (*probe) (struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */ - void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ - int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */ - int (*suspend_late) (struct pci_dev *dev, pm_message_t state); - int (*resume_early) (struct pci_dev *dev); - int (*resume) (struct pci_dev *dev); /* Device woken up */ + struct list_head node; + const char *name; + const struct pci_device_id *id_table; /* Must be non-NULL for probe to be called */ + int (*probe)(struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */ + void (*remove)(struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ + int (*suspend)(struct pci_dev *dev, pm_message_t state); /* Device suspended */ + int (*suspend_late)(struct pci_dev *dev, pm_message_t state); + int (*resume_early)(struct pci_dev *dev); + int (*resume) (struct pci_dev *dev); /* Device woken up */ void (*shutdown) (struct pci_dev *dev); - int (*sriov_configure) (struct pci_dev *dev, int num_vfs); /* PF pdev */ + int (*sriov_configure) (struct pci_dev *dev, int num_vfs); /* On PF */ const struct pci_error_handlers *err_handler; const struct attribute_group **groups; struct device_driver driver; - struct pci_dynids dynids; + struct pci_dynids dynids; }; #define to_pci_driver(drv) container_of(drv, struct pci_driver, driver) /** - * PCI_DEVICE - macro used to describe a specific pci device + * PCI_DEVICE - macro used to describe a specific PCI device * @vend: the 16 bit PCI Vendor ID * @dev: the 16 bit PCI Device ID * @@@ -768,7 -775,7 +768,7 @@@ .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID /** - * PCI_DEVICE_SUB - macro used to describe a specific pci device with subsystem + * PCI_DEVICE_SUB - macro used to describe a specific PCI device with subsystem * @vend: the 16 bit PCI Vendor ID * @dev: the 16 bit PCI Device ID * @subvend: the 16 bit PCI Subvendor ID @@@ -782,7 -789,7 +782,7 @@@ .subvendor = (subvend), .subdevice = (subdev) /** - * PCI_DEVICE_CLASS - macro used to describe a specific pci device class + * PCI_DEVICE_CLASS - macro used to describe a specific PCI device class * @dev_class: the class, subclass, prog-if triple for this device * @dev_class_mask: the class mask for this device * @@@ -796,7 -803,7 +796,7 @@@ .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID /** - * PCI_VDEVICE - macro used to describe a specific pci device in short form + * PCI_VDEVICE - macro used to describe a specific PCI device in short form * @vend: the vendor name * @dev: the 16 bit PCI Device ID * @@@ -805,21 -812,22 +805,21 @@@ * to PCI_ANY_ID. The macro allows the next field to follow as the device * private data. */ - #define PCI_VDEVICE(vend, dev) \ .vendor = PCI_VENDOR_ID_##vend, .device = (dev), \ .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, 0, 0 enum { - PCI_REASSIGN_ALL_RSRC = 0x00000001, /* ignore firmware setup */ - PCI_REASSIGN_ALL_BUS = 0x00000002, /* reassign all bus numbers */ - PCI_PROBE_ONLY = 0x00000004, /* use existing setup */ - PCI_CAN_SKIP_ISA_ALIGN = 0x00000008, /* don't do ISA alignment */ - PCI_ENABLE_PROC_DOMAINS = 0x00000010, /* enable domains in /proc */ + PCI_REASSIGN_ALL_RSRC = 0x00000001, /* Ignore firmware setup */ + PCI_REASSIGN_ALL_BUS = 0x00000002, /* Reassign all bus numbers */ + PCI_PROBE_ONLY = 0x00000004, /* Use existing setup */ + PCI_CAN_SKIP_ISA_ALIGN = 0x00000008, /* Don't do ISA alignment */ + PCI_ENABLE_PROC_DOMAINS = 0x00000010, /* Enable domains in /proc */ PCI_COMPAT_DOMAIN_0 = 0x00000020, /* ... except domain 0 */ - PCI_SCAN_ALL_PCIE_DEVS = 0x00000040, /* scan all, not just dev 0 */ + PCI_SCAN_ALL_PCIE_DEVS = 0x00000040, /* Scan all, not just dev 0 */ }; -/* these external functions are only available when PCI support is enabled */ +/* These external functions are only available when PCI support is enabled */ #ifdef CONFIG_PCI extern unsigned int pci_flags; @@@ -832,11 -840,11 +832,11 @@@ static inline int pci_has_flag(int flag void pcie_bus_configure_settings(struct pci_bus *bus); enum pcie_bus_config_types { - PCIE_BUS_TUNE_OFF, /* don't touch MPS at all */ - PCIE_BUS_DEFAULT, /* ensure MPS matches upstream bridge */ - PCIE_BUS_SAFE, /* use largest MPS boot-time devices support */ - PCIE_BUS_PERFORMANCE, /* use MPS and MRRS for best performance */ - PCIE_BUS_PEER2PEER, /* set MPS = 128 for all devices */ + PCIE_BUS_TUNE_OFF, /* Don't touch MPS at all */ + PCIE_BUS_DEFAULT, /* Ensure MPS matches upstream bridge */ + PCIE_BUS_SAFE, /* Use largest MPS boot-time devices support */ + PCIE_BUS_PERFORMANCE, /* Use MPS and MRRS for best performance */ + PCIE_BUS_PEER2PEER, /* Set MPS = 128 for all devices */ }; extern enum pcie_bus_config_types pcie_bus_config; @@@ -845,7 -853,7 +845,7 @@@ extern struct bus_type pci_bus_type /* Do NOT directly access these two variables, unless you are arch-specific PCI * code, or PCI core code. */ -extern struct list_head pci_root_buses; /* list of all known PCI buses */ +extern struct list_head pci_root_buses; /* List of all known PCI buses */ /* Some device drivers need know if PCI is initiated */ int no_pci_devices(void); @@@ -883,8 -891,8 +883,8 @@@ int pci_bus_insert_busn_res(struct pci_ int pci_bus_update_busn_res_end(struct pci_bus *b, int busmax); void pci_bus_release_busn_res(struct pci_bus *b); struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, - struct pci_ops *ops, void *sysdata, - struct list_head *resources); + struct pci_ops *ops, void *sysdata, + struct list_head *resources); int pci_scan_root_bus_bridge(struct pci_host_bridge *bridge); struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr); @@@ -941,10 -949,10 +941,10 @@@ int pci_find_next_ht_capability(struct struct pci_bus *pci_find_next_bus(const struct pci_bus *from); struct pci_dev *pci_get_device(unsigned int vendor, unsigned int device, - struct pci_dev *from); + struct pci_dev *from); struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device, - unsigned int ss_vendor, unsigned int ss_device, - struct pci_dev *from); + unsigned int ss_vendor, unsigned int ss_device, + struct pci_dev *from); struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn); struct pci_dev *pci_get_domain_bus_and_slot(int domain, unsigned int bus, unsigned int devfn); @@@ -1020,7 -1028,7 +1020,7 @@@ static inline int pcie_capability_clear return pcie_capability_clear_and_set_dword(dev, pos, clear, 0); } -/* user-space driven config access */ +/* User-space driven config access */ int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val); int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val); int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val); @@@ -1064,6 -1072,7 +1064,7 @@@ int pci_set_pcie_reset_state(struct pci int pci_set_cacheline_size(struct pci_dev *dev); #define HAVE_PCI_SET_MWI int __must_check pci_set_mwi(struct pci_dev *dev); + int __must_check pcim_set_mwi(struct pci_dev *dev); int pci_try_set_mwi(struct pci_dev *dev); void pci_clear_mwi(struct pci_dev *dev); void pci_intx(struct pci_dev *dev, int enable); @@@ -1162,7 -1171,7 +1163,7 @@@ unsigned int pci_rescan_bus(struct pci_ void pci_lock_rescan_remove(void); void pci_unlock_rescan_remove(void); -/* Vital product data routines */ +/* Vital Product Data routines */ ssize_t pci_read_vpd(struct pci_dev *dev, loff_t pos, size_t count, void *buf); ssize_t pci_write_vpd(struct pci_dev *dev, loff_t pos, size_t count, const void *buf); int pci_set_vpd_size(struct pci_dev *dev, size_t len); @@@ -1247,7 -1256,9 +1248,7 @@@ static inline pci_bus_addr_t pci_bus_ad int __must_check __pci_register_driver(struct pci_driver *, struct module *, const char *mod_name); -/* - * pci_register_driver must be a macro so that KBUILD_MODNAME can be expanded - */ +/* pci_register_driver() must be a macro so KBUILD_MODNAME can be expanded */ #define pci_register_driver(driver) \ __pci_register_driver(driver, THIS_MODULE, KBUILD_MODNAME) @@@ -1262,7 -1273,8 +1263,7 @@@ void pci_unregister_driver(struct pci_d * use this macro once, and calling it replaces module_init() and module_exit() */ #define module_pci_driver(__pci_driver) \ - module_driver(__pci_driver, pci_register_driver, \ - pci_unregister_driver) + module_driver(__pci_driver, pci_register_driver, pci_unregister_driver) /** * builtin_pci_driver() - Helper macro for registering a PCI driver @@@ -1301,10 -1313,10 +1302,10 @@@ resource_size_t pcibios_iov_resource_al int pci_set_vga_state(struct pci_dev *pdev, bool decode, unsigned int command_bits, u32 flags); -#define PCI_IRQ_LEGACY (1 << 0) /* allow legacy interrupts */ -#define PCI_IRQ_MSI (1 << 1) /* allow MSI interrupts */ -#define PCI_IRQ_MSIX (1 << 2) /* allow MSI-X interrupts */ -#define PCI_IRQ_AFFINITY (1 << 3) /* auto-assign affinity */ +#define PCI_IRQ_LEGACY (1 << 0) /* Allow legacy interrupts */ +#define PCI_IRQ_MSI (1 << 1) /* Allow MSI interrupts */ +#define PCI_IRQ_MSIX (1 << 2) /* Allow MSI-X interrupts */ +#define PCI_IRQ_AFFINITY (1 << 3) /* Auto-assign affinity */ #define PCI_IRQ_ALL_TYPES \ (PCI_IRQ_LEGACY | PCI_IRQ_MSI | PCI_IRQ_MSIX) @@@ -1323,8 -1335,8 +1324,8 @@@ #define pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr) struct msix_entry { - u32 vector; /* kernel uses to write allocated vector */ - u16 entry; /* driver uses to specify entry, OS writes */ + u32 vector; /* Kernel uses to write allocated vector */ + u16 entry; /* Driver uses to specify entry, OS writes */ }; #ifdef CONFIG_PCI_MSI @@@ -1364,10 -1376,10 +1365,10 @@@ static inline int pci_msi_enabled(void static inline int pci_enable_msi(struct pci_dev *dev) { return -ENOSYS; } static inline int pci_enable_msix_range(struct pci_dev *dev, - struct msix_entry *entries, int minvec, int maxvec) + struct msix_entry *entries, int minvec, int maxvec) { return -ENOSYS; } static inline int pci_enable_msix_exact(struct pci_dev *dev, - struct msix_entry *entries, int nvec) + struct msix_entry *entries, int nvec) { return -ENOSYS; } static inline int @@@ -1532,9 -1544,9 +1533,9 @@@ static inline int acpi_pci_bus_find_dom int pci_bus_find_domain_nr(struct pci_bus *bus, struct device *parent); #endif -/* some architectures require additional setup to direct VGA traffic */ +/* Some architectures require additional setup to direct VGA traffic */ typedef int (*arch_set_vga_state_t)(struct pci_dev *pdev, bool decode, - unsigned int command_bits, u32 flags); + unsigned int command_bits, u32 flags); void pci_register_set_vga_state(arch_set_vga_state_t func); static inline int @@@ -1573,9 -1585,10 +1574,9 @@@ static inline void pci_clear_flags(int static inline int pci_has_flag(int flag) { return 0; } /* - * If the system does not have PCI, clearly these return errors. Define - * these as simple inline functions to avoid hair in drivers. + * If the system does not have PCI, clearly these return errors. Define + * these as simple inline functions to avoid hair in drivers. */ - #define _PCI_NOP(o, s, t) \ static inline int pci_##o##_config_##s(struct pci_dev *dev, \ int where, t val) \ @@@ -1714,10 -1727,8 +1715,10 @@@ int pci_iobar_pfn(struct pci_dev *pdev #define pci_root_bus_fwnode(bus) NULL #endif -/* these helpers provide future and backwards compatibility - * for accessing popular PCI BAR info */ +/* + * These helpers provide future and backwards compatibility + * for accessing popular PCI BAR info + */ #define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start) #define pci_resource_end(dev, bar) ((dev)->resource[(bar)].end) #define pci_resource_flags(dev, bar) ((dev)->resource[(bar)].flags) @@@ -1729,8 -1740,7 +1730,8 @@@ (pci_resource_end((dev), (bar)) - \ pci_resource_start((dev), (bar)) + 1)) -/* Similar to the helpers above, these manipulate per-pci_dev +/* + * Similar to the helpers above, these manipulate per-pci_dev * driver-specific data. They are really just a wrapper around * the generic device structure functions of these calls. */ @@@ -1744,14 -1754,16 +1745,14 @@@ static inline void pci_set_drvdata(stru dev_set_drvdata(&pdev->dev, data); } -/* If you want to know what to call your pci_dev, ask this function. - * Again, it's a wrapper around the generic device. - */ static inline const char *pci_name(const struct pci_dev *pdev) { return dev_name(&pdev->dev); } -/* Some archs don't want to expose struct resource to userland as-is +/* + * Some archs don't want to expose struct resource to userland as-is * in sysfs and /proc */ #ifdef HAVE_ARCH_PCI_RESOURCE_TO_USER @@@ -1770,16 -1782,16 +1771,16 @@@ static inline void pci_resource_to_user /* - * The world is not perfect and supplies us with broken PCI devices. - * For at least a part of these bugs we need a work-around, so both - * generic (drivers/pci/quirks.c) and per-architecture code can define - * fixup hooks to be called for particular buggy devices. + * The world is not perfect and supplies us with broken PCI devices. + * For at least a part of these bugs we need a work-around, so both + * generic (drivers/pci/quirks.c) and per-architecture code can define + * fixup hooks to be called for particular buggy devices. */ struct pci_fixup { - u16 vendor; /* You can use PCI_ANY_ID here of course */ - u16 device; /* You can use PCI_ANY_ID here of course */ - u32 class; /* You can use PCI_ANY_ID here too */ + u16 vendor; /* Or PCI_ANY_ID */ + u16 device; /* Or PCI_ANY_ID */ + u32 class; /* Or PCI_ANY_ID */ unsigned int class_shift; /* should be 0, 8, 16 */ void (*hook)(struct pci_dev *dev); }; @@@ -1821,19 -1833,23 +1822,19 @@@ enum pci_fixup_pass #define DECLARE_PCI_FIXUP_CLASS_RESUME(vendor, device, class, \ class_shift, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume, \ - resume##hook, vendor, device, class, \ - class_shift, hook) + resume##hook, vendor, device, class, class_shift, hook) #define DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(vendor, device, class, \ class_shift, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume_early, \ - resume_early##hook, vendor, device, \ - class, class_shift, hook) + resume_early##hook, vendor, device, class, class_shift, hook) #define DECLARE_PCI_FIXUP_CLASS_SUSPEND(vendor, device, class, \ class_shift, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_suspend, \ - suspend##hook, vendor, device, class, \ - class_shift, hook) + suspend##hook, vendor, device, class, class_shift, hook) #define DECLARE_PCI_FIXUP_CLASS_SUSPEND_LATE(vendor, device, class, \ class_shift, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_suspend_late, \ - suspend_late##hook, vendor, device, \ - class, class_shift, hook) + suspend_late##hook, vendor, device, class, class_shift, hook) #define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early, \ @@@ -1849,16 -1865,20 +1850,16 @@@ hook, vendor, device, PCI_ANY_ID, 0, hook) #define DECLARE_PCI_FIXUP_RESUME(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume, \ - resume##hook, vendor, device, \ - PCI_ANY_ID, 0, hook) + resume##hook, vendor, device, PCI_ANY_ID, 0, hook) #define DECLARE_PCI_FIXUP_RESUME_EARLY(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume_early, \ - resume_early##hook, vendor, device, \ - PCI_ANY_ID, 0, hook) + resume_early##hook, vendor, device, PCI_ANY_ID, 0, hook) #define DECLARE_PCI_FIXUP_SUSPEND(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_suspend, \ - suspend##hook, vendor, device, \ - PCI_ANY_ID, 0, hook) + suspend##hook, vendor, device, PCI_ANY_ID, 0, hook) #define DECLARE_PCI_FIXUP_SUSPEND_LATE(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_suspend_late, \ - suspend_late##hook, vendor, device, \ - PCI_ANY_ID, 0, hook) + suspend_late##hook, vendor, device, PCI_ANY_ID, 0, hook) #ifdef CONFIG_PCI_QUIRKS void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev); @@@ -1945,7 -1965,6 +1946,7 @@@ int pci_vfs_assigned(struct pci_dev *de int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs); int pci_sriov_get_totalvfs(struct pci_dev *dev); resource_size_t pci_iov_resource_size(struct pci_dev *dev, int resno); +void pci_vf_drivers_autoprobe(struct pci_dev *dev, bool probe); #else static inline int pci_iov_virtfn_bus(struct pci_dev *dev, int id) { @@@ -1973,7 -1992,6 +1974,7 @@@ static inline int pci_sriov_get_totalvf { return 0; } static inline resource_size_t pci_iov_resource_size(struct pci_dev *dev, int resno) { return 0; } +static inline void pci_vf_drivers_autoprobe(struct pci_dev *dev, bool probe) { } #endif #if defined(CONFIG_HOTPLUG_PCI) || defined(CONFIG_HOTPLUG_PCI_MODULE) @@@ -2095,7 -2113,7 +2096,7 @@@ static inline u16 pci_vpd_lrdt_size(con */ static inline u16 pci_vpd_lrdt_tag(const u8 *lrdt) { - return (u16)(lrdt[0] & PCI_VPD_LRDT_TIN_MASK); + return (u16)(lrdt[0] & PCI_VPD_LRDT_TIN_MASK); } /** @@@ -2180,7 -2198,7 +2181,7 @@@ static inline struct device_node *pci_b return bus ? bus->dev.of_node : NULL; } -#else /* CONFIG_OF */ +#else /* CONFIG_OF */ static inline void pci_set_of_node(struct pci_dev *dev) { } static inline void pci_release_of_node(struct pci_dev *dev) { } static inline void pci_set_bus_of_node(struct pci_bus *bus) { } @@@ -2189,7 -2207,7 +2190,7 @@@ static inline struct device_node pci_device_to_OF_node(const struct pci_dev *pdev) { return NULL; } static inline struct irq_domain * pci_host_bridge_of_msi_domain(struct pci_bus *bus) { return NULL; } -#endif /* CONFIG_OF */ +#endif /* CONFIG_OF */ #ifdef CONFIG_ACPI struct irq_domain *pci_host_bridge_acpi_msi_domain(struct pci_bus *bus); @@@ -2214,7 -2232,7 +2215,7 @@@ int pci_for_each_dma_alias(struct pci_d int (*fn)(struct pci_dev *pdev, u16 alias, void *data), void *data); -/* helper functions for operation of device flag */ +/* Helper functions for operation of device flag */ static inline void pci_set_dev_assigned(struct pci_dev *pdev) { pdev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED; @@@ -2261,7 -2279,7 +2262,7 @@@ static inline bool pci_is_thunderbolt_a return false; } -/* provide the legacy pci_dma_* API */ +/* Provide the legacy pci_dma_* API */ #include <linux/pci-dma-compat.h> #endif /* LINUX_PCI_H */ diff --combined include/linux/skbuff.h index a87e43d16f44,b8e0da6c27d6..ac89a93b7c83 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@@ -1211,6 -1211,11 +1211,11 @@@ static inline bool skb_flow_dissect_flo data, proto, nhoff, hlen, flags); } + void + skb_flow_dissect_tunnel_info(const struct sk_buff *skb, + struct flow_dissector *flow_dissector, + void *target_container); + static inline __u32 skb_get_hash(struct sk_buff *skb) { if (!skb->l4_hash && !skb->sw_hash) @@@ -3241,7 -3246,7 +3246,7 @@@ struct sk_buff *__skb_recv_datagram(str int *peeked, int *off, int *err); struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock, int *err); -unsigned int datagram_poll(struct file *file, struct socket *sock, +__poll_t datagram_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); int skb_copy_datagram_iter(const struct sk_buff *from, int offset, struct iov_iter *to, int size); diff --combined include/net/inet_connection_sock.h index ec72cdb5bc39,8e1bf9ae4a5e..6692d67e9245 --- a/include/net/inet_connection_sock.h +++ b/include/net/inet_connection_sock.h @@@ -77,6 -77,7 +77,7 @@@ struct inet_connection_sock_af_ops * @icsk_af_ops Operations which are AF_INET{4,6} specific * @icsk_ulp_ops Pluggable ULP control hook * @icsk_ulp_data ULP private data + * @icsk_listen_portaddr_node hash to the portaddr listener hashtable * @icsk_ca_state: Congestion control state * @icsk_retransmits: Number of unrecovered [RTO] timeouts * @icsk_pending: Scheduled timer event @@@ -101,6 -102,7 +102,7 @@@ struct inet_connection_sock const struct inet_connection_sock_af_ops *icsk_af_ops; const struct tcp_ulp_ops *icsk_ulp_ops; void *icsk_ulp_data; + struct hlist_node icsk_listen_portaddr_node; unsigned int (*icsk_sync_mss)(struct sock *sk, u32 pmtu); __u8 icsk_ca_state:6, icsk_ca_setsockopt:1, @@@ -305,7 -307,7 +307,7 @@@ void inet_csk_prepare_forced_close(stru /* * LISTEN is a special case for poll.. */ -static inline unsigned int inet_csk_listen_poll(const struct sock *sk) +static inline __poll_t inet_csk_listen_poll(const struct sock *sk) { return !reqsk_queue_empty(&inet_csk(sk)->icsk_accept_queue) ? (POLLIN | POLLRDNORM) : 0; diff --combined include/net/sctp/sctp.h index 608d123ef25f,20c0c1be2ca7..f7ae6b0a21d0 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@@ -107,7 -107,7 +107,7 @@@ int sctp_backlog_rcv(struct sock *sk, s int sctp_inet_listen(struct socket *sock, int backlog); void sctp_write_space(struct sock *sk); void sctp_data_ready(struct sock *sk); -unsigned int sctp_poll(struct file *file, struct socket *sock, +__poll_t sctp_poll(struct file *file, struct socket *sock, poll_table *wait); void sctp_sock_rfree(struct sk_buff *skb); void sctp_copy_sock(struct sock *newsk, struct sock *sk, @@@ -116,7 -116,7 +116,7 @@@ extern struct percpu_counter sctp_socke int sctp_asconf_mgmt(struct sctp_sock *, struct sctp_sockaddr_entry *); struct sk_buff *sctp_skb_recv_datagram(struct sock *, int, int, int *); - int sctp_transport_walk_start(struct rhashtable_iter *iter); + void sctp_transport_walk_start(struct rhashtable_iter *iter); void sctp_transport_walk_stop(struct rhashtable_iter *iter); struct sctp_transport *sctp_transport_get_next(struct net *net, struct rhashtable_iter *iter); @@@ -444,13 -444,13 +444,13 @@@ static inline int sctp_frag_point(cons int frag = pmtu; frag -= sp->pf->af->net_header_len; - frag -= sizeof(struct sctphdr) + sizeof(struct sctp_data_chunk); + frag -= sizeof(struct sctphdr) + sctp_datachk_len(&asoc->stream); if (asoc->user_frag) frag = min_t(int, frag, asoc->user_frag); frag = SCTP_TRUNC4(min_t(int, frag, SCTP_MAX_CHUNK_LEN - - sizeof(struct sctp_data_chunk))); + sctp_datachk_len(&asoc->stream))); return frag; } diff --combined include/net/sock.h index 4fd74e0d1bbb,66fd3951e6f3..57750cdd67d8 --- a/include/net/sock.h +++ b/include/net/sock.h @@@ -1262,6 -1262,7 +1262,7 @@@ proto_memory_pressure(struct proto *pro /* Called with local bh disabled */ void sock_prot_inuse_add(struct net *net, struct proto *prot, int inc); int sock_prot_inuse_get(struct net *net, struct proto *proto); + int sock_inuse_get(struct net *net); #else static inline void sock_prot_inuse_add(struct net *net, struct proto *prot, int inc) @@@ -1583,7 -1584,7 +1584,7 @@@ int sock_no_connect(struct socket *, st int sock_no_socketpair(struct socket *, struct socket *); int sock_no_accept(struct socket *, struct socket *, int, bool); int sock_no_getname(struct socket *, struct sockaddr *, int *, int); -unsigned int sock_no_poll(struct file *, struct socket *, +__poll_t sock_no_poll(struct file *, struct socket *, struct poll_table_struct *); int sock_no_ioctl(struct socket *, unsigned int, unsigned long); int sock_no_listen(struct socket *, int); @@@ -2337,31 -2338,6 +2338,6 @@@ static inline bool sk_listener(const st return (1 << sk->sk_state) & (TCPF_LISTEN | TCPF_NEW_SYN_RECV); } - /** - * sk_state_load - read sk->sk_state for lockless contexts - * @sk: socket pointer - * - * Paired with sk_state_store(). Used in places we do not hold socket lock : - * tcp_diag_get_info(), tcp_get_info(), tcp_poll(), get_tcp4_sock() ... - */ - static inline int sk_state_load(const struct sock *sk) - { - return smp_load_acquire(&sk->sk_state); - } - - /** - * sk_state_store - update sk->sk_state - * @sk: socket pointer - * @newstate: new state - * - * Paired with sk_state_load(). Should be used in contexts where - * state change might impact lockless readers. - */ - static inline void sk_state_store(struct sock *sk, int newstate) - { - smp_store_release(&sk->sk_state, newstate); - } - void sock_enable_timestamp(struct sock *sk, int flag); int sock_get_timestamp(struct sock *, struct timeval __user *); int sock_get_timestampns(struct sock *, struct timespec __user *); @@@ -2412,4 -2388,15 +2388,15 @@@ static inline int sk_get_rmem0(const st return *proto->sysctl_rmem; } + /* Default TCP Small queue budget is ~1 ms of data (1sec >> 10) + * Some wifi drivers need to tweak it to get more chunks. + * They can use this helper from their ndo_start_xmit() + */ + static inline void sk_pacing_shift_update(struct sock *sk, int val) + { + if (!sk || !sk_fullsock(sk) || sk->sk_pacing_shift == val) + return; + sk->sk_pacing_shift = val; + } + #endif /* _SOCK_H */ diff --combined include/net/tcp.h index 50b21a49d870,6939e69d3c37..26c2793846a1 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@@ -387,7 -387,7 +387,7 @@@ bool tcp_peer_is_proven(struct request_ void tcp_close(struct sock *sk, long timeout); void tcp_init_sock(struct sock *sk); void tcp_init_transfer(struct sock *sk, int bpf_op); -unsigned int tcp_poll(struct file *file, struct socket *sock, +__poll_t tcp_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); @@@ -1507,8 -1507,7 +1507,7 @@@ int tcp_md5_hash_key(struct tcp_md5sig_ /* From tcp_fastopen.c */ void tcp_fastopen_cache_get(struct sock *sk, u16 *mss, - struct tcp_fastopen_cookie *cookie, int *syn_loss, - unsigned long *last_syn_loss); + struct tcp_fastopen_cookie *cookie); void tcp_fastopen_cache_set(struct sock *sk, u16 mss, struct tcp_fastopen_cookie *cookie, bool syn_lost, u16 try_exp); @@@ -1546,7 -1545,7 +1545,7 @@@ extern unsigned int sysctl_tcp_fastopen void tcp_fastopen_active_disable(struct sock *sk); bool tcp_fastopen_active_should_disable(struct sock *sk); void tcp_fastopen_active_disable_ofo_check(struct sock *sk); - void tcp_fastopen_active_timeout_reset(void); + void tcp_fastopen_active_detect_blackhole(struct sock *sk, bool expired); /* Latencies incurred by various limits for a sender. They are * chronograph-like stats that are mutually exclusive. @@@ -2011,10 -2010,12 +2010,12 @@@ static inline int tcp_call_bpf(struct s struct bpf_sock_ops_kern sock_ops; int ret; - if (sk_fullsock(sk)) + memset(&sock_ops, 0, sizeof(sock_ops)); + if (sk_fullsock(sk)) { + sock_ops.is_fullsock = 1; sock_owned_by_me(sk); + } - memset(&sock_ops, 0, sizeof(sock_ops)); sock_ops.sk = sk; sock_ops.op = op; diff --combined include/uapi/linux/if_ether.h index 144de4d2f385,87b7529fcdfe..f8cb5760ea4f --- a/include/uapi/linux/if_ether.h +++ b/include/uapi/linux/if_ether.h @@@ -23,7 -23,6 +23,7 @@@ #define _UAPI_LINUX_IF_ETHER_H #include <linux/types.h> +#include <linux/libc-compat.h> /* * IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble @@@ -48,6 -47,7 +48,7 @@@ #define ETH_P_PUP 0x0200 /* Xerox PUP packet */ #define ETH_P_PUPAT 0x0201 /* Xerox PUP Addr Trans packet */ #define ETH_P_TSN 0x22F0 /* TSN (IEEE 1722) packet */ + #define ETH_P_ERSPAN2 0x22EB /* ERSPAN version 2 (type III) */ #define ETH_P_IP 0x0800 /* Internet Protocol packet */ #define ETH_P_X25 0x0805 /* CCITT X.25 */ #define ETH_P_ARP 0x0806 /* Address Resolution packet */ @@@ -150,13 -150,11 +151,13 @@@ * This is an Ethernet frame header. */ +#if __UAPI_DEF_ETHHDR struct ethhdr { unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ unsigned char h_source[ETH_ALEN]; /* source ether addr */ __be16 h_proto; /* packet type ID field */ } __attribute__((packed)); +#endif #endif /* _UAPI_LINUX_IF_ETHER_H */ diff --combined kernel/bpf/syscall.c index 5cb783fc8224,007802c5ca7d..f35ce7e70c90 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@@ -937,10 -937,16 +937,16 @@@ static void __bpf_prog_put_rcu(struct r static void __bpf_prog_put(struct bpf_prog *prog, bool do_idr_lock) { if (atomic_dec_and_test(&prog->aux->refcnt)) { + int i; + trace_bpf_prog_put_rcu(prog); /* bpf_prog_free_id() must be called first */ bpf_prog_free_id(prog, do_idr_lock); + + for (i = 0; i < prog->aux->func_cnt; i++) + bpf_prog_kallsyms_del(prog->aux->func[i]); bpf_prog_kallsyms_del(prog); + call_rcu(&prog->aux->rcu, __bpf_prog_put_rcu); } } @@@ -1057,7 -1063,7 +1063,7 @@@ struct bpf_prog *bpf_prog_inc_not_zero( } EXPORT_SYMBOL_GPL(bpf_prog_inc_not_zero); -static bool bpf_prog_get_ok(struct bpf_prog *prog, +bool bpf_prog_get_ok(struct bpf_prog *prog, enum bpf_prog_type *attach_type, bool attach_drv) { /* not an attachment, just a refcount inc, always allow */ @@@ -1194,7 -1200,8 +1200,8 @@@ static int bpf_prog_load(union bpf_att goto free_used_maps; /* eBPF program is ready to be JITed */ - prog = bpf_prog_select_runtime(prog, &err); + if (!prog->bpf_func) + prog = bpf_prog_select_runtime(prog, &err); if (err < 0) goto free_used_maps; @@@ -1551,6 -1558,67 +1558,67 @@@ static int bpf_map_get_fd_by_id(const u return fd; } + static const struct bpf_map *bpf_map_from_imm(const struct bpf_prog *prog, + unsigned long addr) + { + int i; + + for (i = 0; i < prog->aux->used_map_cnt; i++) + if (prog->aux->used_maps[i] == (void *)addr) + return prog->aux->used_maps[i]; + return NULL; + } + + static struct bpf_insn *bpf_insn_prepare_dump(const struct bpf_prog *prog) + { + const struct bpf_map *map; + struct bpf_insn *insns; + u64 imm; + int i; + + insns = kmemdup(prog->insnsi, bpf_prog_insn_size(prog), + GFP_USER); + if (!insns) + return insns; + + for (i = 0; i < prog->len; i++) { + if (insns[i].code == (BPF_JMP | BPF_TAIL_CALL)) { + insns[i].code = BPF_JMP | BPF_CALL; + insns[i].imm = BPF_FUNC_tail_call; + /* fall-through */ + } + if (insns[i].code == (BPF_JMP | BPF_CALL) || + insns[i].code == (BPF_JMP | BPF_CALL_ARGS)) { + if (insns[i].code == (BPF_JMP | BPF_CALL_ARGS)) + insns[i].code = BPF_JMP | BPF_CALL; + if (!bpf_dump_raw_ok()) + insns[i].imm = 0; + continue; + } + + if (insns[i].code != (BPF_LD | BPF_IMM | BPF_DW)) + continue; + + imm = ((u64)insns[i + 1].imm << 32) | (u32)insns[i].imm; + map = bpf_map_from_imm(prog, imm); + if (map) { + insns[i].src_reg = BPF_PSEUDO_MAP_FD; + insns[i].imm = map->id; + insns[i + 1].imm = 0; + continue; + } + + if (!bpf_dump_raw_ok() && + imm == (unsigned long)prog->aux) { + insns[i].imm = 0; + insns[i + 1].imm = 0; + continue; + } + } + + return insns; + } + static int bpf_prog_get_info_by_fd(struct bpf_prog *prog, const union bpf_attr *attr, union bpf_attr __user *uattr) @@@ -1601,18 -1669,34 +1669,34 @@@ ulen = info.jited_prog_len; info.jited_prog_len = prog->jited_len; if (info.jited_prog_len && ulen) { - uinsns = u64_to_user_ptr(info.jited_prog_insns); - ulen = min_t(u32, info.jited_prog_len, ulen); - if (copy_to_user(uinsns, prog->bpf_func, ulen)) - return -EFAULT; + if (bpf_dump_raw_ok()) { + uinsns = u64_to_user_ptr(info.jited_prog_insns); + ulen = min_t(u32, info.jited_prog_len, ulen); + if (copy_to_user(uinsns, prog->bpf_func, ulen)) + return -EFAULT; + } else { + info.jited_prog_insns = 0; + } } ulen = info.xlated_prog_len; info.xlated_prog_len = bpf_prog_insn_size(prog); if (info.xlated_prog_len && ulen) { + struct bpf_insn *insns_sanitized; + bool fault; + + if (prog->blinded && !bpf_dump_raw_ok()) { + info.xlated_prog_insns = 0; + goto done; + } + insns_sanitized = bpf_insn_prepare_dump(prog); + if (!insns_sanitized) + return -ENOMEM; uinsns = u64_to_user_ptr(info.xlated_prog_insns); ulen = min_t(u32, info.xlated_prog_len, ulen); - if (copy_to_user(uinsns, prog->insnsi, ulen)) + fault = copy_to_user(uinsns, insns_sanitized, ulen); + kfree(insns_sanitized); + if (fault) return -EFAULT; } diff --combined kernel/events/core.c index 4dd0e1ea876d,878d86c513d6..812f03e99ef3 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@@ -4511,11 -4511,11 +4511,11 @@@ perf_read(struct file *file, char __use return ret; } -static unsigned int perf_poll(struct file *file, poll_table *wait) +static __poll_t perf_poll(struct file *file, poll_table *wait) { struct perf_event *event = file->private_data; struct ring_buffer *rb; - unsigned int events = POLLHUP; + __poll_t events = POLLHUP; poll_wait(file, &event->waitq, wait); @@@ -4723,6 -4723,9 +4723,9 @@@ static long _perf_ioctl(struct perf_eve rcu_read_unlock(); return 0; } + + case PERF_EVENT_IOC_QUERY_BPF: + return perf_event_query_prog_array(event, (void __user *)arg); default: return -ENOTTY; } @@@ -8080,6 -8083,13 +8083,13 @@@ static int perf_event_set_bpf_prog(stru return -EINVAL; } + /* Kprobe override only works for kprobes, not uprobes. */ + if (prog->kprobe_override && + !(event->tp_event->flags & TRACE_EVENT_FL_KPROBE)) { + bpf_prog_put(prog); + return -EINVAL; + } + if (is_tracepoint || is_syscall_tp) { int off = trace_event_get_offsets(event->tp_event); diff --combined kernel/module.c index 8042b8fcbf14,bd695bfdc5c4..83075a104710 --- a/kernel/module.c +++ b/kernel/module.c @@@ -3118,7 -3118,11 +3118,11 @@@ static int find_module_sections(struct sizeof(*mod->ftrace_callsites), &mod->num_ftrace_callsites); #endif - + #ifdef CONFIG_BPF_KPROBE_OVERRIDE + mod->kprobe_ei_funcs = section_objs(info, "_kprobe_error_inject_list", + sizeof(*mod->kprobe_ei_funcs), + &mod->num_kprobe_ei_funcs); + #endif mod->extable = section_objs(info, "__ex_table", sizeof(*mod->extable), &mod->num_exentries); @@@ -3938,12 -3942,6 +3942,12 @@@ static const char *get_ksymbol(struct m return symname(kallsyms, best); } +void * __weak dereference_module_function_descriptor(struct module *mod, + void *ptr) +{ + return ptr; +} + /* For kallsyms to ask for address resolution. NULL means not found. Careful * not to lock to avoid deadlock on oopses, simply disable preemption. */ const char *module_address_lookup(unsigned long addr, diff --combined net/atm/common.c index 8f12f1c6fa14,5763fd241dc3..6523f38c4957 --- a/net/atm/common.c +++ b/net/atm/common.c @@@ -14,7 -14,7 +14,7 @@@ #include <linux/capability.h> #include <linux/mm.h> #include <linux/sched/signal.h> - #include <linux/time.h> /* struct timeval */ + #include <linux/time64.h> /* 64-bit time for seconds */ #include <linux/skbuff.h> #include <linux/bitops.h> #include <linux/init.h> @@@ -648,11 -648,11 +648,11 @@@ out return error; } -unsigned int vcc_poll(struct file *file, struct socket *sock, poll_table *wait) +__poll_t vcc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct atm_vcc *vcc; - unsigned int mask; + __poll_t mask; sock_poll_wait(file, sk_sleep(sk), wait); mask = 0; diff --combined net/batman-adv/icmp_socket.c index a98e0a986cef,8041cf106c37..581375d0eed2 --- a/net/batman-adv/icmp_socket.c +++ b/net/batman-adv/icmp_socket.c @@@ -1,3 -1,4 +1,4 @@@ + // SPDX-License-Identifier: GPL-2.0 /* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors: * * Marek Lindner @@@ -26,6 -27,7 +27,7 @@@ #include <linux/export.h> #include <linux/fcntl.h> #include <linux/fs.h> + #include <linux/gfp.h> #include <linux/if_ether.h> #include <linux/kernel.h> #include <linux/list.h> @@@ -42,11 -44,11 +44,11 @@@ #include <linux/string.h> #include <linux/uaccess.h> #include <linux/wait.h> + #include <uapi/linux/batadv_packet.h> #include "hard-interface.h" #include "log.h" #include "originator.h" - #include "packet.h" #include "send.h" static struct batadv_socket_client *batadv_socket_client_hash[256]; @@@ -55,6 -57,9 +57,9 @@@ static void batadv_socket_add_packet(st struct batadv_icmp_header *icmph, size_t icmp_len); + /** + * batadv_socket_init() - Initialize soft interface independent socket data + */ void batadv_socket_init(void) { memset(batadv_socket_client_hash, 0, sizeof(batadv_socket_client_hash)); @@@ -292,7 -297,7 +297,7 @@@ out return len; } -static unsigned int batadv_socket_poll(struct file *file, poll_table *wait) +static __poll_t batadv_socket_poll(struct file *file, poll_table *wait) { struct batadv_socket_client *socket_client = file->private_data; @@@ -314,6 -319,12 +319,12 @@@ static const struct file_operations bat .llseek = no_llseek, }; + /** + * batadv_socket_setup() - Create debugfs "socket" file + * @bat_priv: the bat priv with all the soft interface information + * + * Return: 0 on success or negative error number in case of failure + */ int batadv_socket_setup(struct batadv_priv *bat_priv) { struct dentry *d; @@@ -333,7 -344,7 +344,7 @@@ err } /** - * batadv_socket_add_packet - schedule an icmp packet to be sent to + * batadv_socket_add_packet() - schedule an icmp packet to be sent to * userspace on an icmp socket. * @socket_client: the socket this packet belongs to * @icmph: pointer to the header of the icmp packet @@@ -390,7 -401,7 +401,7 @@@ static void batadv_socket_add_packet(st } /** - * batadv_socket_receive_packet - schedule an icmp packet to be received + * batadv_socket_receive_packet() - schedule an icmp packet to be received * locally and sent to userspace. * @icmph: pointer to the header of the icmp packet * @icmp_len: total length of the icmp packet diff --combined net/batman-adv/log.c index 76451460c98d,da004980ab8b..9be74a44e99d --- a/net/batman-adv/log.c +++ b/net/batman-adv/log.c @@@ -1,3 -1,4 +1,4 @@@ + // SPDX-License-Identifier: GPL-2.0 /* Copyright (C) 2010-2017 B.A.T.M.A.N. contributors: * * Marek Lindner @@@ -24,6 -25,7 +25,7 @@@ #include <linux/export.h> #include <linux/fcntl.h> #include <linux/fs.h> + #include <linux/gfp.h> #include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/module.h> @@@ -86,6 -88,13 +88,13 @@@ static int batadv_fdebug_log(struct bat return 0; } + /** + * batadv_debug_log() - Add debug log entry + * @bat_priv: the bat priv with all the soft interface information + * @fmt: format string + * + * Return: 0 on success or negative error number in case of failure + */ int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...) { va_list args; @@@ -176,7 -185,7 +185,7 @@@ static ssize_t batadv_log_read(struct f return error; } -static unsigned int batadv_log_poll(struct file *file, poll_table *wait) +static __poll_t batadv_log_poll(struct file *file, poll_table *wait) { struct batadv_priv *bat_priv = file->private_data; struct batadv_priv_debug_log *debug_log = bat_priv->debug_log; @@@ -197,6 -206,12 +206,12 @@@ static const struct file_operations bat .llseek = no_llseek, }; + /** + * batadv_debug_log_setup() - Initialize debug log + * @bat_priv: the bat priv with all the soft interface information + * + * Return: 0 on success or negative error number in case of failure + */ int batadv_debug_log_setup(struct batadv_priv *bat_priv) { struct dentry *d; @@@ -222,6 -237,10 +237,10 @@@ err return -ENOMEM; } + /** + * batadv_debug_log_cleanup() - Destroy debug log + * @bat_priv: the bat priv with all the soft interface information + */ void batadv_debug_log_cleanup(struct batadv_priv *bat_priv) { kfree(bat_priv->debug_log); diff --combined net/bluetooth/af_bluetooth.c index 671b907ba678,f044202346c6..f897681780db --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@@ -421,7 -421,7 +421,7 @@@ out } EXPORT_SYMBOL(bt_sock_stream_recvmsg); -static inline unsigned int bt_accept_poll(struct sock *parent) +static inline __poll_t bt_accept_poll(struct sock *parent) { struct bt_sock *s, *n; struct sock *sk; @@@ -437,11 -437,11 +437,11 @@@ return 0; } -unsigned int bt_sock_poll(struct file *file, struct socket *sock, +__poll_t bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; - unsigned int mask = 0; + __poll_t mask = 0; BT_DBG("sock %p, sk %p", sock, sk); @@@ -766,43 -766,39 +766,39 @@@ static int __init bt_init(void return err; err = sock_register(&bt_sock_family_ops); - if (err < 0) { - bt_sysfs_cleanup(); - return err; - } + if (err) + goto cleanup_sysfs; BT_INFO("HCI device and connection manager initialized"); err = hci_sock_init(); - if (err < 0) - goto error; + if (err) + goto unregister_socket; err = l2cap_init(); - if (err < 0) - goto sock_err; + if (err) + goto cleanup_socket; err = sco_init(); - if (err < 0) { - l2cap_exit(); - goto sock_err; - } + if (err) + goto cleanup_cap; err = mgmt_init(); - if (err < 0) { - sco_exit(); - l2cap_exit(); - goto sock_err; - } + if (err) + goto cleanup_sco; return 0; - sock_err: + cleanup_sco: + sco_exit(); + cleanup_cap: + l2cap_exit(); + cleanup_socket: hci_sock_cleanup(); - - error: + unregister_socket: sock_unregister(PF_BLUETOOTH); + cleanup_sysfs: bt_sysfs_cleanup(); - return err; } diff --combined net/core/dev.c index 0e0ba36eeac9,2eb66c0d9cdb..dc3bb37ba252 --- a/net/core/dev.c +++ b/net/core/dev.c @@@ -1146,19 -1146,7 +1146,19 @@@ EXPORT_SYMBOL(dev_alloc_name) int dev_get_valid_name(struct net *net, struct net_device *dev, const char *name) { - return dev_alloc_name_ns(net, dev, name); + BUG_ON(!net); + + if (!dev_valid_name(name)) + return -EINVAL; + + if (strchr(name, '%')) + return dev_alloc_name_ns(net, dev, name); + else if (__dev_get_by_name(net, name)) + return -EEXIST; + else if (dev->name != name) + strlcpy(dev->name, name, IFNAMSIZ); + + return 0; } EXPORT_SYMBOL(dev_get_valid_name); @@@ -1554,6 -1542,23 +1554,23 @@@ void dev_disable_lro(struct net_device } EXPORT_SYMBOL(dev_disable_lro); + /** + * dev_disable_gro_hw - disable HW Generic Receive Offload on a device + * @dev: device + * + * Disable HW Generic Receive Offload (GRO_HW) on a net device. Must be + * called under RTNL. This is needed if Generic XDP is installed on + * the device. + */ + static void dev_disable_gro_hw(struct net_device *dev) + { + dev->wanted_features &= ~NETIF_F_GRO_HW; + netdev_update_features(dev); + + if (unlikely(dev->features & NETIF_F_GRO_HW)) + netdev_WARN(dev, "failed to disable GRO_HW!\n"); + } + static int call_netdevice_notifier(struct notifier_block *nb, unsigned long val, struct net_device *dev) { @@@ -2815,7 -2820,7 +2832,7 @@@ struct sk_buff *__skb_gso_segment(struc segs = skb_mac_gso_segment(skb, features); - if (unlikely(skb_needs_check(skb, tx_path))) + if (unlikely(skb_needs_check(skb, tx_path) && !IS_ERR(segs))) skb_warn_bad_offload(skb); return segs; @@@ -3054,7 -3059,7 +3071,7 @@@ int skb_csum_hwoffload_help(struct sk_b } EXPORT_SYMBOL(skb_csum_hwoffload_help); - static struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device *dev) + static struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device *dev, bool *again) { netdev_features_t features; @@@ -3078,9 -3083,6 +3095,6 @@@ __skb_linearize(skb)) goto out_kfree_skb; - if (validate_xmit_xfrm(skb, features)) - goto out_kfree_skb; - /* If packet is not checksummed and device does not * support checksumming for this protocol, complete * checksumming here. @@@ -3097,6 -3099,8 +3111,8 @@@ } } + skb = validate_xmit_xfrm(skb, features, again); + return skb; out_kfree_skb: @@@ -3106,7 -3110,7 +3122,7 @@@ out_null return NULL; } - struct sk_buff *validate_xmit_skb_list(struct sk_buff *skb, struct net_device *dev) + struct sk_buff *validate_xmit_skb_list(struct sk_buff *skb, struct net_device *dev, bool *again) { struct sk_buff *next, *head = NULL, *tail; @@@ -3117,7 -3121,7 +3133,7 @@@ /* in case skb wont be segmented, point to itself */ skb->prev = skb; - skb = validate_xmit_skb(skb, dev); + skb = validate_xmit_skb(skb, dev, again); if (!skb) continue; @@@ -3174,6 -3178,21 +3190,21 @@@ static inline int __dev_xmit_skb(struc int rc; qdisc_calculate_pkt_len(skb, q); + + if (q->flags & TCQ_F_NOLOCK) { + if (unlikely(test_bit(__QDISC_STATE_DEACTIVATED, &q->state))) { + __qdisc_drop(skb, &to_free); + rc = NET_XMIT_DROP; + } else { + rc = q->enqueue(skb, q, &to_free) & NET_XMIT_MASK; + __qdisc_run(q); + } + + if (unlikely(to_free)) + kfree_skb_list(to_free); + return rc; + } + /* * Heuristic to force contended enqueues to serialize on a * separate lock before trying to get qdisc main lock. @@@ -3204,9 -3223,9 +3235,9 @@@ contended = false; } __qdisc_run(q); - } else - qdisc_run_end(q); + } + qdisc_run_end(q); rc = NET_XMIT_SUCCESS; } else { rc = q->enqueue(skb, q, &to_free) & NET_XMIT_MASK; @@@ -3216,6 -3235,7 +3247,7 @@@ contended = false; } __qdisc_run(q); + qdisc_run_end(q); } } spin_unlock(root_lock); @@@ -3428,6 -3448,7 +3460,7 @@@ static int __dev_queue_xmit(struct sk_b struct netdev_queue *txq; struct Qdisc *q; int rc = -ENOMEM; + bool again = false; skb_reset_mac_header(skb); @@@ -3489,7 -3510,7 +3522,7 @@@ XMIT_RECURSION_LIMIT)) goto recursion_alert; - skb = validate_xmit_skb(skb, dev); + skb = validate_xmit_skb(skb, dev, &again); if (!skb) goto out; @@@ -4155,21 -4176,26 +4188,26 @@@ static __latent_entropy void net_tx_act while (head) { struct Qdisc *q = head; - spinlock_t *root_lock; + spinlock_t *root_lock = NULL; head = head->next_sched; - root_lock = qdisc_lock(q); - spin_lock(root_lock); + if (!(q->flags & TCQ_F_NOLOCK)) { + root_lock = qdisc_lock(q); + spin_lock(root_lock); + } /* We need to make sure head->next_sched is read * before clearing __QDISC_STATE_SCHED */ smp_mb__before_atomic(); clear_bit(__QDISC_STATE_SCHED, &q->state); qdisc_run(q); - spin_unlock(root_lock); + if (root_lock) + spin_unlock(root_lock); } } + + xfrm_dev_backlog(sd); } #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_ATM_LANE) @@@ -4557,6 -4583,7 +4595,7 @@@ static int generic_xdp_install(struct n } else if (new && !old) { static_key_slow_inc(&generic_xdp_needed); dev_disable_lro(dev); + dev_disable_gro_hw(dev); } break; @@@ -7085,17 -7112,21 +7124,21 @@@ int dev_change_proto_down(struct net_de } EXPORT_SYMBOL(dev_change_proto_down); - u8 __dev_xdp_attached(struct net_device *dev, bpf_op_t bpf_op, u32 *prog_id) + void __dev_xdp_query(struct net_device *dev, bpf_op_t bpf_op, + struct netdev_bpf *xdp) { - struct netdev_bpf xdp; - - memset(&xdp, 0, sizeof(xdp)); - xdp.command = XDP_QUERY_PROG; + memset(xdp, 0, sizeof(*xdp)); + xdp->command = XDP_QUERY_PROG; /* Query must always succeed. */ - WARN_ON(bpf_op(dev, &xdp) < 0); - if (prog_id) - *prog_id = xdp.prog_id; + WARN_ON(bpf_op(dev, xdp) < 0); + } + + static u8 __dev_xdp_attached(struct net_device *dev, bpf_op_t bpf_op) + { + struct netdev_bpf xdp; + + __dev_xdp_query(dev, bpf_op, &xdp); return xdp.prog_attached; } @@@ -7118,6 -7149,27 +7161,27 @@@ static int dev_xdp_install(struct net_d return bpf_op(dev, &xdp); } + static void dev_xdp_uninstall(struct net_device *dev) + { + struct netdev_bpf xdp; + bpf_op_t ndo_bpf; + + /* Remove generic XDP */ + WARN_ON(dev_xdp_install(dev, generic_xdp_install, NULL, 0, NULL)); + + /* Remove from the driver */ + ndo_bpf = dev->netdev_ops->ndo_bpf; + if (!ndo_bpf) + return; + + __dev_xdp_query(dev, ndo_bpf, &xdp); + if (xdp.prog_attached == XDP_ATTACHED_NONE) + return; + + /* Program removal should always succeed */ + WARN_ON(dev_xdp_install(dev, ndo_bpf, NULL, xdp.prog_flags, NULL)); + } + /** * dev_change_xdp_fd - set or clear a bpf program for a device rx path * @dev: device @@@ -7146,10 -7198,10 +7210,10 @@@ int dev_change_xdp_fd(struct net_devic bpf_chk = generic_xdp_install; if (fd >= 0) { - if (bpf_chk && __dev_xdp_attached(dev, bpf_chk, NULL)) + if (bpf_chk && __dev_xdp_attached(dev, bpf_chk)) return -EEXIST; if ((flags & XDP_FLAGS_UPDATE_IF_NOEXIST) && - __dev_xdp_attached(dev, bpf_op, NULL)) + __dev_xdp_attached(dev, bpf_op)) return -EBUSY; prog = bpf_prog_get_type_dev(fd, BPF_PROG_TYPE_XDP, @@@ -7248,6 -7300,7 +7312,7 @@@ static void rollback_registered_many(st /* Shutdown queueing discipline. */ dev_shutdown(dev); + dev_xdp_uninstall(dev); /* Notify protocols, that we are about to destroy * this device. They should clean all the things. @@@ -7391,6 -7444,18 +7456,18 @@@ static netdev_features_t netdev_fix_fea features &= ~dev->gso_partial_features; } + if (!(features & NETIF_F_RXCSUM)) { + /* NETIF_F_GRO_HW implies doing RXCSUM since every packet + * successfully merged by hardware must also have the + * checksum verified by hardware. If the user does not + * want to enable RXCSUM, logically, we should disable GRO_HW. + */ + if (features & NETIF_F_GRO_HW) { + netdev_dbg(dev, "Dropping NETIF_F_GRO_HW since no RXCSUM feature.\n"); + features &= ~NETIF_F_GRO_HW; + } + } + return features; } @@@ -8207,7 -8272,6 +8284,6 @@@ EXPORT_SYMBOL(alloc_netdev_mqs) void free_netdev(struct net_device *dev) { struct napi_struct *p, *n; - struct bpf_prog *prog; might_sleep(); netif_free_tx_queues(dev); @@@ -8226,12 -8290,6 +8302,6 @@@ free_percpu(dev->pcpu_refcnt); dev->pcpu_refcnt = NULL; - prog = rcu_dereference_protected(dev->xdp_prog, 1); - if (prog) { - bpf_prog_put(prog); - static_key_slow_dec(&generic_xdp_needed); - } - /* Compatibility with error handling in drivers */ if (dev->reg_state == NETREG_UNINITIALIZED) { netdev_freemem(dev); @@@ -8819,6 -8877,9 +8889,9 @@@ static int __init net_dev_init(void skb_queue_head_init(&sd->input_pkt_queue); skb_queue_head_init(&sd->process_queue); + #ifdef CONFIG_XFRM_OFFLOAD + skb_queue_head_init(&sd->xfrm_backlog); + #endif INIT_LIST_HEAD(&sd->poll_list); sd->output_queue_tailp = &sd->output_queue; #ifdef CONFIG_RPS diff --combined net/core/ethtool.c index 8225416911ae,50a79203043b..fff6314f4c5e --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@@ -73,6 -73,7 +73,7 @@@ static const char netdev_features_strin [NETIF_F_LLTX_BIT] = "tx-lockless", [NETIF_F_NETNS_LOCAL_BIT] = "netns-local", [NETIF_F_GRO_BIT] = "rx-gro", + [NETIF_F_GRO_HW_BIT] = "rx-gro-hw", [NETIF_F_LRO_BIT] = "rx-lro", [NETIF_F_TSO_BIT] = "tx-tcp-segmentation", @@@ -770,6 -771,15 +771,6 @@@ static int ethtool_set_link_ksettings(s return dev->ethtool_ops->set_link_ksettings(dev, &link_ksettings); } -static void -warn_incomplete_ethtool_legacy_settings_conversion(const char *details) -{ - char name[sizeof(current->comm)]; - - pr_info_once("warning: `%s' uses legacy ethtool link settings API, %s\n", - get_task_comm(name, current), details); -} - /* Query device for its ethtool_cmd settings. * * Backward compatibility note: for compatibility with legacy ethtool, @@@ -796,8 -806,10 +797,8 @@@ static int ethtool_get_settings(struct &link_ksettings); if (err < 0) return err; - if (!convert_link_ksettings_to_legacy_settings(&cmd, - &link_ksettings)) - warn_incomplete_ethtool_legacy_settings_conversion( - "link modes are only partially reported"); + convert_link_ksettings_to_legacy_settings(&cmd, + &link_ksettings); /* send a sensible cmd tag back to user */ cmd.cmd = ETHTOOL_GSET; diff --combined net/core/rtnetlink.c index 778d7f03404a,c688dc564b11..a0500eeda344 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@@ -62,7 -62,9 +62,9 @@@ struct rtnl_link { rtnl_doit_func doit; rtnl_dumpit_func dumpit; + struct module *owner; unsigned int flags; + struct rcu_head rcu; }; static DEFINE_MUTEX(rtnl_mutex); @@@ -127,8 -129,7 +129,7 @@@ bool lockdep_rtnl_is_held(void EXPORT_SYMBOL(lockdep_rtnl_is_held); #endif /* #ifdef CONFIG_PROVE_LOCKING */ - static struct rtnl_link __rcu *rtnl_msg_handlers[RTNL_FAMILY_MAX + 1]; - static refcount_t rtnl_msg_handlers_ref[RTNL_FAMILY_MAX + 1]; + static struct rtnl_link *__rcu *rtnl_msg_handlers[RTNL_FAMILY_MAX + 1]; static inline int rtm_msgindex(int msgtype) { @@@ -144,72 -145,127 +145,127 @@@ return msgindex; } - /** - * __rtnl_register - Register a rtnetlink message type - * @protocol: Protocol family or PF_UNSPEC - * @msgtype: rtnetlink message type - * @doit: Function pointer called for each request message - * @dumpit: Function pointer called for each dump request (NLM_F_DUMP) message - * @flags: rtnl_link_flags to modifiy behaviour of doit/dumpit functions - * - * Registers the specified function pointers (at least one of them has - * to be non-NULL) to be called whenever a request message for the - * specified protocol family and message type is received. - * - * The special protocol family PF_UNSPEC may be used to define fallback - * function pointers for the case when no entry for the specific protocol - * family exists. - * - * Returns 0 on success or a negative error code. - */ - int __rtnl_register(int protocol, int msgtype, - rtnl_doit_func doit, rtnl_dumpit_func dumpit, - unsigned int flags) + static struct rtnl_link *rtnl_get_link(int protocol, int msgtype) + { + struct rtnl_link **tab; + + if (protocol >= ARRAY_SIZE(rtnl_msg_handlers)) + protocol = PF_UNSPEC; + + tab = rcu_dereference_rtnl(rtnl_msg_handlers[protocol]); + if (!tab) + tab = rcu_dereference_rtnl(rtnl_msg_handlers[PF_UNSPEC]); + + return tab[msgtype]; + } + + static int rtnl_register_internal(struct module *owner, + int protocol, int msgtype, + rtnl_doit_func doit, rtnl_dumpit_func dumpit, + unsigned int flags) { - struct rtnl_link *tab; + struct rtnl_link *link, *old; + struct rtnl_link __rcu **tab; int msgindex; + int ret = -ENOBUFS; BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX); msgindex = rtm_msgindex(msgtype); - tab = rcu_dereference_raw(rtnl_msg_handlers[protocol]); + rtnl_lock(); + tab = rtnl_msg_handlers[protocol]; if (tab == NULL) { - tab = kcalloc(RTM_NR_MSGTYPES, sizeof(*tab), GFP_KERNEL); - if (tab == NULL) - return -ENOBUFS; + tab = kcalloc(RTM_NR_MSGTYPES, sizeof(void *), GFP_KERNEL); + if (!tab) + goto unlock; + /* ensures we see the 0 stores */ rcu_assign_pointer(rtnl_msg_handlers[protocol], tab); } + old = rtnl_dereference(tab[msgindex]); + if (old) { + link = kmemdup(old, sizeof(*old), GFP_KERNEL); + if (!link) + goto unlock; + } else { + link = kzalloc(sizeof(*link), GFP_KERNEL); + if (!link) + goto unlock; + } + + WARN_ON(link->owner && link->owner != owner); + link->owner = owner; + + WARN_ON(doit && link->doit && link->doit != doit); if (doit) - tab[msgindex].doit = doit; + link->doit = doit; + WARN_ON(dumpit && link->dumpit && link->dumpit != dumpit); if (dumpit) - tab[msgindex].dumpit = dumpit; - tab[msgindex].flags |= flags; + link->dumpit = dumpit; - return 0; + link->flags |= flags; + + /* publish protocol:msgtype */ + rcu_assign_pointer(tab[msgindex], link); + ret = 0; + if (old) + kfree_rcu(old, rcu); + unlock: + rtnl_unlock(); + return ret; + } + + /** + * rtnl_register_module - Register a rtnetlink message type + * + * @owner: module registering the hook (THIS_MODULE) + * @protocol: Protocol family or PF_UNSPEC + * @msgtype: rtnetlink message type + * @doit: Function pointer called for each request message + * @dumpit: Function pointer called for each dump request (NLM_F_DUMP) message + * @flags: rtnl_link_flags to modifiy behaviour of doit/dumpit functions + * + * Like rtnl_register, but for use by removable modules. + */ + int rtnl_register_module(struct module *owner, + int protocol, int msgtype, + rtnl_doit_func doit, rtnl_dumpit_func dumpit, + unsigned int flags) + { + return rtnl_register_internal(owner, protocol, msgtype, + doit, dumpit, flags); } - EXPORT_SYMBOL_GPL(__rtnl_register); + EXPORT_SYMBOL_GPL(rtnl_register_module); /** * rtnl_register - Register a rtnetlink message type + * @protocol: Protocol family or PF_UNSPEC + * @msgtype: rtnetlink message type + * @doit: Function pointer called for each request message + * @dumpit: Function pointer called for each dump request (NLM_F_DUMP) message + * @flags: rtnl_link_flags to modifiy behaviour of doit/dumpit functions * - * Identical to __rtnl_register() but panics on failure. This is useful - * as failure of this function is very unlikely, it can only happen due - * to lack of memory when allocating the chain to store all message - * handlers for a protocol. Meant for use in init functions where lack - * of memory implies no sense in continuing. + * Registers the specified function pointers (at least one of them has + * to be non-NULL) to be called whenever a request message for the + * specified protocol family and message type is received. + * + * The special protocol family PF_UNSPEC may be used to define fallback + * function pointers for the case when no entry for the specific protocol + * family exists. */ void rtnl_register(int protocol, int msgtype, rtnl_doit_func doit, rtnl_dumpit_func dumpit, unsigned int flags) { - if (__rtnl_register(protocol, msgtype, doit, dumpit, flags) < 0) - panic("Unable to register rtnetlink message handler, " - "protocol = %d, message type = %d\n", - protocol, msgtype); + int err; + + err = rtnl_register_internal(NULL, protocol, msgtype, doit, dumpit, + flags); + if (err) + pr_err("Unable to register rtnetlink message handler, " + "protocol = %d, message type = %d\n", protocol, msgtype); } - EXPORT_SYMBOL_GPL(rtnl_register); /** * rtnl_unregister - Unregister a rtnetlink message type @@@ -220,24 -276,25 +276,25 @@@ */ int rtnl_unregister(int protocol, int msgtype) { - struct rtnl_link *handlers; + struct rtnl_link **tab, *link; int msgindex; BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX); msgindex = rtm_msgindex(msgtype); rtnl_lock(); - handlers = rtnl_dereference(rtnl_msg_handlers[protocol]); - if (!handlers) { + tab = rtnl_dereference(rtnl_msg_handlers[protocol]); + if (!tab) { rtnl_unlock(); return -ENOENT; } - handlers[msgindex].doit = NULL; - handlers[msgindex].dumpit = NULL; - handlers[msgindex].flags = 0; + link = tab[msgindex]; + rcu_assign_pointer(tab[msgindex], NULL); rtnl_unlock(); + kfree_rcu(link, rcu); + return 0; } EXPORT_SYMBOL_GPL(rtnl_unregister); @@@ -251,20 -308,27 +308,27 @@@ */ void rtnl_unregister_all(int protocol) { - struct rtnl_link *handlers; + struct rtnl_link **tab, *link; + int msgindex; BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX); rtnl_lock(); - handlers = rtnl_dereference(rtnl_msg_handlers[protocol]); + tab = rtnl_msg_handlers[protocol]; RCU_INIT_POINTER(rtnl_msg_handlers[protocol], NULL); + for (msgindex = 0; msgindex < RTM_NR_MSGTYPES; msgindex++) { + link = tab[msgindex]; + if (!link) + continue; + + rcu_assign_pointer(tab[msgindex], NULL); + kfree_rcu(link, rcu); + } rtnl_unlock(); synchronize_net(); - while (refcount_read(&rtnl_msg_handlers_ref[protocol]) > 1) - schedule(); - kfree(handlers); + kfree(tab); } EXPORT_SYMBOL_GPL(rtnl_unregister_all); @@@ -1261,6 -1325,7 +1325,7 @@@ static u8 rtnl_xdp_attached_mode(struc { const struct net_device_ops *ops = dev->netdev_ops; const struct bpf_prog *generic_xdp_prog; + struct netdev_bpf xdp; ASSERT_RTNL(); @@@ -1273,7 -1338,10 +1338,10 @@@ if (!ops->ndo_bpf) return XDP_ATTACHED_NONE; - return __dev_xdp_attached(dev, ops->ndo_bpf, prog_id); + __dev_xdp_query(dev, ops->ndo_bpf, &xdp); + *prog_id = xdp.prog_id; + + return xdp.prog_attached; } static int rtnl_xdp_fill(struct sk_buff *skb, struct net_device *dev) @@@ -1569,6 -1637,8 +1637,8 @@@ static const struct nla_policy ifla_pol [IFLA_PROMISCUITY] = { .type = NLA_U32 }, [IFLA_NUM_TX_QUEUES] = { .type = NLA_U32 }, [IFLA_NUM_RX_QUEUES] = { .type = NLA_U32 }, + [IFLA_GSO_MAX_SEGS] = { .type = NLA_U32 }, + [IFLA_GSO_MAX_SIZE] = { .type = NLA_U32 }, [IFLA_PHYS_PORT_ID] = { .type = NLA_BINARY, .len = MAX_PHYS_ITEM_ID_LEN }, [IFLA_CARRIER_CHANGES] = { .type = NLA_U32 }, /* ignored */ [IFLA_PHYS_SWITCH_ID] = { .type = NLA_BINARY, .len = MAX_PHYS_ITEM_ID_LEN }, @@@ -1681,18 -1751,18 +1751,18 @@@ static bool link_dump_filtered(struct n return false; } -static struct net *get_target_net(struct sk_buff *skb, int netnsid) +static struct net *get_target_net(struct sock *sk, int netnsid) { struct net *net; - net = get_net_ns_by_id(sock_net(skb->sk), netnsid); + net = get_net_ns_by_id(sock_net(sk), netnsid); if (!net) return ERR_PTR(-EINVAL); /* For now, the caller is required to have CAP_NET_ADMIN in * the user namespace owning the target net ns. */ - if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { + if (!sk_ns_capable(sk, net->user_ns, CAP_NET_ADMIN)) { put_net(net); return ERR_PTR(-EACCES); } @@@ -1733,7 -1803,7 +1803,7 @@@ static int rtnl_dump_ifinfo(struct sk_b ifla_policy, NULL) >= 0) { if (tb[IFLA_IF_NETNSID]) { netnsid = nla_get_s32(tb[IFLA_IF_NETNSID]); - tgt_net = get_target_net(skb, netnsid); + tgt_net = get_target_net(skb->sk, netnsid); if (IS_ERR(tgt_net)) { tgt_net = net; netnsid = -1; @@@ -2219,6 -2289,34 +2289,34 @@@ static int do_setlink(const struct sk_b } } + if (tb[IFLA_GSO_MAX_SIZE]) { + u32 max_size = nla_get_u32(tb[IFLA_GSO_MAX_SIZE]); + + if (max_size > GSO_MAX_SIZE) { + err = -EINVAL; + goto errout; + } + + if (dev->gso_max_size ^ max_size) { + netif_set_gso_max_size(dev, max_size); + status |= DO_SETLINK_MODIFIED; + } + } + + if (tb[IFLA_GSO_MAX_SEGS]) { + u32 max_segs = nla_get_u32(tb[IFLA_GSO_MAX_SEGS]); + + if (max_segs > GSO_MAX_SEGS) { + err = -EINVAL; + goto errout; + } + + if (dev->gso_max_segs ^ max_segs) { + dev->gso_max_segs = max_segs; + status |= DO_SETLINK_MODIFIED; + } + } + if (tb[IFLA_OPERSTATE]) set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE])); @@@ -2583,6 -2681,10 +2681,10 @@@ struct net_device *rtnl_create_link(str dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]); if (tb[IFLA_GROUP]) dev_set_group(dev, nla_get_u32(tb[IFLA_GROUP])); + if (tb[IFLA_GSO_MAX_SIZE]) + netif_set_gso_max_size(dev, nla_get_u32(tb[IFLA_GSO_MAX_SIZE])); + if (tb[IFLA_GSO_MAX_SEGS]) + dev->gso_max_segs = nla_get_u32(tb[IFLA_GSO_MAX_SEGS]); return dev; } @@@ -2883,7 -2985,7 +2985,7 @@@ static int rtnl_getlink(struct sk_buff if (tb[IFLA_IF_NETNSID]) { netnsid = nla_get_s32(tb[IFLA_IF_NETNSID]); - tgt_net = get_target_net(skb, netnsid); + tgt_net = get_target_net(NETLINK_CB(skb).sk, netnsid); if (IS_ERR(tgt_net)) return PTR_ERR(tgt_net); } @@@ -2973,18 -3075,26 +3075,26 @@@ static int rtnl_dump_all(struct sk_buf s_idx = 1; for (idx = 1; idx <= RTNL_FAMILY_MAX; idx++) { + struct rtnl_link **tab; int type = cb->nlh->nlmsg_type-RTM_BASE; - struct rtnl_link *handlers; + struct rtnl_link *link; rtnl_dumpit_func dumpit; if (idx < s_idx || idx == PF_PACKET) continue; - handlers = rtnl_dereference(rtnl_msg_handlers[idx]); - if (!handlers) + if (type < 0 || type >= RTM_NR_MSGTYPES) continue; - dumpit = READ_ONCE(handlers[type].dumpit); + tab = rcu_dereference_rtnl(rtnl_msg_handlers[idx]); + if (!tab) + continue; + + link = tab[type]; + if (!link) + continue; + + dumpit = link->dumpit; if (!dumpit) continue; @@@ -4314,7 -4424,8 +4424,8 @@@ static int rtnetlink_rcv_msg(struct sk_ struct netlink_ext_ack *extack) { struct net *net = sock_net(skb->sk); - struct rtnl_link *handlers; + struct rtnl_link *link; + struct module *owner; int err = -EOPNOTSUPP; rtnl_doit_func doit; unsigned int flags; @@@ -4338,79 -4449,85 +4449,85 @@@ if (kind != 2 && !netlink_net_capable(skb, CAP_NET_ADMIN)) return -EPERM; - if (family >= ARRAY_SIZE(rtnl_msg_handlers)) - family = PF_UNSPEC; - rcu_read_lock(); - handlers = rcu_dereference(rtnl_msg_handlers[family]); - if (!handlers) { - family = PF_UNSPEC; - handlers = rcu_dereference(rtnl_msg_handlers[family]); - } - if (kind == 2 && nlh->nlmsg_flags&NLM_F_DUMP) { struct sock *rtnl; rtnl_dumpit_func dumpit; u16 min_dump_alloc = 0; - dumpit = READ_ONCE(handlers[type].dumpit); - if (!dumpit) { + link = rtnl_get_link(family, type); + if (!link || !link->dumpit) { family = PF_UNSPEC; - handlers = rcu_dereference(rtnl_msg_handlers[PF_UNSPEC]); - if (!handlers) - goto err_unlock; - - dumpit = READ_ONCE(handlers[type].dumpit); - if (!dumpit) + link = rtnl_get_link(family, type); + if (!link || !link->dumpit) goto err_unlock; } - - refcount_inc(&rtnl_msg_handlers_ref[family]); + owner = link->owner; + dumpit = link->dumpit; if (type == RTM_GETLINK - RTM_BASE) min_dump_alloc = rtnl_calcit(skb, nlh); + err = 0; + /* need to do this before rcu_read_unlock() */ + if (!try_module_get(owner)) + err = -EPROTONOSUPPORT; + rcu_read_unlock(); rtnl = net->rtnl; - { + if (err == 0) { struct netlink_dump_control c = { .dump = dumpit, .min_dump_alloc = min_dump_alloc, + .module = owner, }; err = netlink_dump_start(rtnl, skb, nlh, &c); + /* netlink_dump_start() will keep a reference on + * module if dump is still in progress. + */ + module_put(owner); } - refcount_dec(&rtnl_msg_handlers_ref[family]); return err; } - doit = READ_ONCE(handlers[type].doit); - if (!doit) { + link = rtnl_get_link(family, type); + if (!link || !link->doit) { family = PF_UNSPEC; - handlers = rcu_dereference(rtnl_msg_handlers[family]); + link = rtnl_get_link(PF_UNSPEC, type); + if (!link || !link->doit) + goto out_unlock; } - flags = READ_ONCE(handlers[type].flags); + owner = link->owner; + if (!try_module_get(owner)) { + err = -EPROTONOSUPPORT; + goto out_unlock; + } + + flags = link->flags; if (flags & RTNL_FLAG_DOIT_UNLOCKED) { - refcount_inc(&rtnl_msg_handlers_ref[family]); - doit = READ_ONCE(handlers[type].doit); + doit = link->doit; rcu_read_unlock(); if (doit) err = doit(skb, nlh, extack); - refcount_dec(&rtnl_msg_handlers_ref[family]); + module_put(owner); return err; } - rcu_read_unlock(); rtnl_lock(); - handlers = rtnl_dereference(rtnl_msg_handlers[family]); - if (handlers) { - doit = READ_ONCE(handlers[type].doit); - if (doit) - err = doit(skb, nlh, extack); - } + link = rtnl_get_link(family, type); + if (link && link->doit) + err = link->doit(skb, nlh, extack); rtnl_unlock(); + + module_put(owner); + + return err; + + out_unlock: + rcu_read_unlock(); return err; err_unlock: @@@ -4498,11 -4615,6 +4615,6 @@@ static struct pernet_operations rtnetli void __init rtnetlink_init(void) { - int i; - - for (i = 0; i < ARRAY_SIZE(rtnl_msg_handlers_ref); i++) - refcount_set(&rtnl_msg_handlers_ref[i], 1); - if (register_pernet_subsys(&rtnetlink_net_ops)) panic("rtnetlink_init: cannot initialize rtnetlink\n"); diff --combined net/core/sock.c index 1211159718ad,72d14b221784..420c380bc61d --- a/net/core/sock.c +++ b/net/core/sock.c @@@ -145,6 -145,8 +145,8 @@@ static DEFINE_MUTEX(proto_list_mutex); static LIST_HEAD(proto_list); + static void sock_inuse_add(struct net *net, int val); + /** * sk_ns_capable - General socket capability test * @sk: Socket to use a capability on or through @@@ -1531,8 -1533,11 +1533,11 @@@ struct sock *sk_alloc(struct net *net, sk->sk_kern_sock = kern; sock_lock_init(sk); sk->sk_net_refcnt = kern ? 0 : 1; - if (likely(sk->sk_net_refcnt)) + if (likely(sk->sk_net_refcnt)) { get_net(net); + sock_inuse_add(net, 1); + } + sock_net_set(sk, net); refcount_set(&sk->sk_wmem_alloc, 1); @@@ -1595,6 -1600,9 +1600,9 @@@ void sk_destruct(struct sock *sk static void __sk_free(struct sock *sk) { + if (likely(sk->sk_net_refcnt)) + sock_inuse_add(sock_net(sk), -1); + if (unlikely(sock_diag_has_destroy_listeners(sk) && sk->sk_net_refcnt)) sock_diag_broadcast_destroy(sk); else @@@ -1716,6 -1724,8 +1724,8 @@@ struct sock *sk_clone_lock(const struc newsk->sk_priority = 0; newsk->sk_incoming_cpu = raw_smp_processor_id(); atomic64_set(&newsk->sk_cookie, 0); + if (likely(newsk->sk_net_refcnt)) + sock_inuse_add(sock_net(newsk), 1); /* * Before updating sk_refcnt, we must commit prior changes to memory @@@ -2496,7 -2506,7 +2506,7 @@@ int sock_no_getname(struct socket *sock } EXPORT_SYMBOL(sock_no_getname); -unsigned int sock_no_poll(struct file *file, struct socket *sock, poll_table *pt) +__poll_t sock_no_poll(struct file *file, struct socket *sock, poll_table *pt) { return 0; } @@@ -3045,7 -3055,7 +3055,7 @@@ static DECLARE_BITMAP(proto_inuse_idx, void sock_prot_inuse_add(struct net *net, struct proto *prot, int val) { - __this_cpu_add(net->core.inuse->val[prot->inuse_idx], val); + __this_cpu_add(net->core.prot_inuse->val[prot->inuse_idx], val); } EXPORT_SYMBOL_GPL(sock_prot_inuse_add); @@@ -3055,21 -3065,50 +3065,50 @@@ int sock_prot_inuse_get(struct net *net int res = 0; for_each_possible_cpu(cpu) - res += per_cpu_ptr(net->core.inuse, cpu)->val[idx]; + res += per_cpu_ptr(net->core.prot_inuse, cpu)->val[idx]; return res >= 0 ? res : 0; } EXPORT_SYMBOL_GPL(sock_prot_inuse_get); + static void sock_inuse_add(struct net *net, int val) + { + this_cpu_add(*net->core.sock_inuse, val); + } + + int sock_inuse_get(struct net *net) + { + int cpu, res = 0; + + for_each_possible_cpu(cpu) + res += *per_cpu_ptr(net->core.sock_inuse, cpu); + + return res; + } + + EXPORT_SYMBOL_GPL(sock_inuse_get); + static int __net_init sock_inuse_init_net(struct net *net) { - net->core.inuse = alloc_percpu(struct prot_inuse); - return net->core.inuse ? 0 : -ENOMEM; + net->core.prot_inuse = alloc_percpu(struct prot_inuse); + if (net->core.prot_inuse == NULL) + return -ENOMEM; + + net->core.sock_inuse = alloc_percpu(int); + if (net->core.sock_inuse == NULL) + goto out; + + return 0; + + out: + free_percpu(net->core.prot_inuse); + return -ENOMEM; } static void __net_exit sock_inuse_exit_net(struct net *net) { - free_percpu(net->core.inuse); + free_percpu(net->core.prot_inuse); + free_percpu(net->core.sock_inuse); } static struct pernet_operations net_inuse_ops = { @@@ -3112,6 -3151,10 +3151,10 @@@ static inline void assign_proto_idx(str static inline void release_proto_idx(struct proto *prot) { } + + static void sock_inuse_add(struct net *net, int val) + { + } #endif static void req_prot_cleanup(struct request_sock_ops *rsk_prot) diff --combined net/dccp/proto.c index 8b8db3d481bd,fa7e92e08920..74685fecfdb9 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@@ -38,6 -38,9 +38,9 @@@ #include "dccp.h" #include "feat.h" + #define CREATE_TRACE_POINTS + #include "trace.h" + DEFINE_SNMP_STAT(struct dccp_mib, dccp_statistics) __read_mostly; EXPORT_SYMBOL_GPL(dccp_statistics); @@@ -110,7 -113,7 +113,7 @@@ void dccp_set_state(struct sock *sk, co /* Change state AFTER socket is unhashed to avoid closed * socket sitting in hash tables. */ - sk->sk_state = state; + inet_sk_set_state(sk, state); } EXPORT_SYMBOL_GPL(dccp_set_state); @@@ -318,10 -321,10 +321,10 @@@ EXPORT_SYMBOL_GPL(dccp_disconnect) * take care of normal races (between the test and the event) and we don't * go look at any of the socket buffers directly. */ -unsigned int dccp_poll(struct file *file, struct socket *sock, +__poll_t dccp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask; + __poll_t mask; struct sock *sk = sock->sk; sock_poll_wait(file, sk_sleep(sk), wait); @@@ -761,6 -764,8 +764,8 @@@ int dccp_sendmsg(struct sock *sk, struc int rc, size; long timeo; + trace_dccp_probe(sk, len); + if (len > dp->dccps_mss_cache) return -EMSGSIZE; diff --combined net/ipv4/tcp.c index c4a7ee7f6721,7ac583a2b9fe..61d15bd31e82 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@@ -283,8 -283,6 +283,6 @@@ #include <asm/ioctls.h> #include <net/busy_poll.h> - #include <trace/events/tcp.h> - struct percpu_counter tcp_orphan_count; EXPORT_SYMBOL_GPL(tcp_orphan_count); @@@ -493,9 -491,9 +491,9 @@@ static void tcp_tx_timestamp(struct soc * take care of normal races (between the test and the event) and we don't * go look at any of the socket buffers directly. */ -unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) +__poll_t tcp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask; + __poll_t mask; struct sock *sk = sock->sk; const struct tcp_sock *tp = tcp_sk(sk); int state; @@@ -504,7 -502,7 +502,7 @@@ sock_poll_wait(file, sk_sleep(sk), wait); - state = sk_state_load(sk); + state = inet_sk_state_load(sk); if (state == TCP_LISTEN) return inet_csk_listen_poll(sk); @@@ -1106,12 -1104,15 +1104,15 @@@ static int linear_payload_sz(bool first return 0; } - static int select_size(const struct sock *sk, bool sg, bool first_skb) + static int select_size(const struct sock *sk, bool sg, bool first_skb, bool zc) { const struct tcp_sock *tp = tcp_sk(sk); int tmp = tp->mss_cache; if (sg) { + if (zc) + return 0; + if (sk_can_gso(sk)) { tmp = linear_payload_sz(first_skb); } else { @@@ -1188,7 -1189,7 +1189,7 @@@ int tcp_sendmsg_locked(struct sock *sk int flags, err, copied = 0; int mss_now = 0, size_goal, copied_syn = 0; bool process_backlog = false; - bool sg; + bool sg, zc = false; long timeo; flags = msg->msg_flags; @@@ -1206,7 -1207,8 +1207,8 @@@ goto out_err; } - if (!(sk_check_csum_caps(sk) && sk->sk_route_caps & NETIF_F_SG)) + zc = sk_check_csum_caps(sk) && sk->sk_route_caps & NETIF_F_SG; + if (!zc) uarg->zerocopy = 0; } @@@ -1283,6 -1285,7 +1285,7 @@@ restart if (copy <= 0 || !tcp_skb_can_collapse_to(skb)) { bool first_skb; + int linear; new_segment: /* Allocate new segment. If the interface is SG, @@@ -1296,9 -1299,8 +1299,8 @@@ goto restart; } first_skb = tcp_rtx_and_write_queues_empty(sk); - skb = sk_stream_alloc_skb(sk, - select_size(sk, sg, first_skb), - sk->sk_allocation, + linear = select_size(sk, sg, first_skb, zc); + skb = sk_stream_alloc_skb(sk, linear, sk->sk_allocation, first_skb); if (!skb) goto wait_for_memory; @@@ -1327,13 -1329,13 +1329,13 @@@ copy = msg_data_left(msg); /* Where to copy to? */ - if (skb_availroom(skb) > 0) { + if (skb_availroom(skb) > 0 && !zc) { /* We have some space in skb head. Superb! */ copy = min_t(int, copy, skb_availroom(skb)); err = skb_add_data_nocache(sk, skb, &msg->msg_iter, copy); if (err) goto do_fault; - } else if (!uarg || !uarg->zerocopy) { + } else if (!zc) { bool merge = true; int i = skb_shinfo(skb)->nr_frags; struct page_frag *pfrag = sk_page_frag(sk); @@@ -1373,8 -1375,10 +1375,10 @@@ pfrag->offset += copy; } else { err = skb_zerocopy_iter_stream(sk, skb, msg, copy, uarg); - if (err == -EMSGSIZE || err == -EEXIST) + if (err == -EMSGSIZE || err == -EEXIST) { + tcp_mark_push(tp, skb); goto new_segment; + } if (err < 0) goto do_error; copy = err; @@@ -2040,8 -2044,6 +2044,6 @@@ void tcp_set_state(struct sock *sk, in { int oldstate = sk->sk_state; - trace_tcp_set_state(sk, oldstate, state); - switch (state) { case TCP_ESTABLISHED: if (oldstate != TCP_ESTABLISHED) @@@ -2065,7 -2067,7 +2067,7 @@@ /* Change state AFTER socket is unhashed to avoid closed * socket sitting in hash tables. */ - sk_state_store(sk, state); + inet_sk_state_store(sk, state); #ifdef STATE_TRACE SOCK_DEBUG(sk, "TCP sk=%p, State %s -> %s\n", sk, statename[oldstate], statename[state]); @@@ -2920,7 -2922,7 +2922,7 @@@ void tcp_get_info(struct sock *sk, stru if (sk->sk_type != SOCK_STREAM) return; - info->tcpi_state = sk_state_load(sk); + info->tcpi_state = inet_sk_state_load(sk); /* Report meaningful fields for all TCP states, including listeners */ rate = READ_ONCE(sk->sk_pacing_rate); @@@ -3578,6 -3580,9 +3580,9 @@@ void __init tcp_init(void percpu_counter_init(&tcp_sockets_allocated, 0, GFP_KERNEL); percpu_counter_init(&tcp_orphan_count, 0, GFP_KERNEL); inet_hashinfo_init(&tcp_hashinfo); + inet_hashinfo2_init(&tcp_hashinfo, "tcp_listen_portaddr_hash", + thash_entries, 21, /* one slot per 2 MB*/ + 0, 64 * 1024); tcp_hashinfo.bind_bucket_cachep = kmem_cache_create("tcp_bind_bucket", sizeof(struct inet_bind_bucket), 0, diff --combined net/ipv4/udp.c index ef45adfc0edb,e9c0d1e1772e..0942a5f43ea5 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@@ -357,18 -357,12 +357,12 @@@ fail } EXPORT_SYMBOL(udp_lib_get_port); - static u32 udp4_portaddr_hash(const struct net *net, __be32 saddr, - unsigned int port) - { - return jhash_1word((__force u32)saddr, net_hash_mix(net)) ^ port; - } - int udp_v4_get_port(struct sock *sk, unsigned short snum) { unsigned int hash2_nulladdr = - udp4_portaddr_hash(sock_net(sk), htonl(INADDR_ANY), snum); + ipv4_portaddr_hash(sock_net(sk), htonl(INADDR_ANY), snum); unsigned int hash2_partial = - udp4_portaddr_hash(sock_net(sk), inet_sk(sk)->inet_rcv_saddr, 0); + ipv4_portaddr_hash(sock_net(sk), inet_sk(sk)->inet_rcv_saddr, 0); /* precompute partial secondary hash */ udp_sk(sk)->udp_portaddr_hash = hash2_partial; @@@ -445,7 -439,7 +439,7 @@@ static struct sock *udp4_lib_lookup2(st struct sk_buff *skb) { struct sock *sk, *result; - int score, badness, matches = 0, reuseport = 0; + int score, badness; u32 hash = 0; result = NULL; @@@ -454,23 -448,16 +448,16 @@@ score = compute_score(sk, net, saddr, sport, daddr, hnum, dif, sdif, exact_dif); if (score > badness) { - reuseport = sk->sk_reuseport; - if (reuseport) { + if (sk->sk_reuseport) { hash = udp_ehashfn(net, daddr, hnum, saddr, sport); result = reuseport_select_sock(sk, hash, skb, sizeof(struct udphdr)); if (result) return result; - matches = 1; } badness = score; result = sk; - } else if (score == badness && reuseport) { - matches++; - if (reciprocal_scale(hash, matches) == 0) - result = sk; - hash = next_pseudo_random32(hash); } } return result; @@@ -488,11 -475,11 +475,11 @@@ struct sock *__udp4_lib_lookup(struct n unsigned int hash2, slot2, slot = udp_hashfn(net, hnum, udptable->mask); struct udp_hslot *hslot2, *hslot = &udptable->hash[slot]; bool exact_dif = udp_lib_exact_dif_match(net, skb); - int score, badness, matches = 0, reuseport = 0; + int score, badness; u32 hash = 0; if (hslot->count > 10) { - hash2 = udp4_portaddr_hash(net, daddr, hnum); + hash2 = ipv4_portaddr_hash(net, daddr, hnum); slot2 = hash2 & udptable->mask; hslot2 = &udptable->hash2[slot2]; if (hslot->count < hslot2->count) @@@ -503,7 -490,7 +490,7 @@@ exact_dif, hslot2, skb); if (!result) { unsigned int old_slot2 = slot2; - hash2 = udp4_portaddr_hash(net, htonl(INADDR_ANY), hnum); + hash2 = ipv4_portaddr_hash(net, htonl(INADDR_ANY), hnum); slot2 = hash2 & udptable->mask; /* avoid searching the same slot again. */ if (unlikely(slot2 == old_slot2)) @@@ -526,23 -513,16 +513,16 @@@ begin score = compute_score(sk, net, saddr, sport, daddr, hnum, dif, sdif, exact_dif); if (score > badness) { - reuseport = sk->sk_reuseport; - if (reuseport) { + if (sk->sk_reuseport) { hash = udp_ehashfn(net, daddr, hnum, saddr, sport); result = reuseport_select_sock(sk, hash, skb, sizeof(struct udphdr)); if (result) return result; - matches = 1; } result = sk; badness = score; - } else if (score == badness && reuseport) { - matches++; - if (reciprocal_scale(hash, matches) == 0) - result = sk; - hash = next_pseudo_random32(hash); } } return result; @@@ -1775,7 -1755,7 +1755,7 @@@ EXPORT_SYMBOL(udp_lib_rehash) static void udp_v4_rehash(struct sock *sk) { - u16 new_hash = udp4_portaddr_hash(sock_net(sk), + u16 new_hash = ipv4_portaddr_hash(sock_net(sk), inet_sk(sk)->inet_rcv_saddr, inet_sk(sk)->inet_num); udp_lib_rehash(sk, new_hash); @@@ -1966,9 -1946,9 +1946,9 @@@ static int __udp4_lib_mcast_deliver(str struct sk_buff *nskb; if (use_hash2) { - hash2_any = udp4_portaddr_hash(net, htonl(INADDR_ANY), hnum) & + hash2_any = ipv4_portaddr_hash(net, htonl(INADDR_ANY), hnum) & udptable->mask; - hash2 = udp4_portaddr_hash(net, daddr, hnum) & udptable->mask; + hash2 = ipv4_portaddr_hash(net, daddr, hnum) & udptable->mask; start_lookup: hslot = &udptable->hash2[hash2]; offset = offsetof(typeof(*sk), __sk_common.skc_portaddr_node); @@@ -2200,7 -2180,7 +2180,7 @@@ static struct sock *__udp4_lib_demux_lo int dif, int sdif) { unsigned short hnum = ntohs(loc_port); - unsigned int hash2 = udp4_portaddr_hash(net, loc_addr, hnum); + unsigned int hash2 = ipv4_portaddr_hash(net, loc_addr, hnum); unsigned int slot2 = hash2 & udp_table.mask; struct udp_hslot *hslot2 = &udp_table.hash2[slot2]; INET_ADDR_COOKIE(acookie, rmt_addr, loc_addr); @@@ -2502,9 -2482,9 +2482,9 @@@ int compat_udp_getsockopt(struct sock * * but then block when reading it. Add special case code * to work around these arguably broken applications. */ -unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait) +__poll_t udp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask = datagram_poll(file, sock, wait); + __poll_t mask = datagram_poll(file, sock, wait); struct sock *sk = sock->sk; if (!skb_queue_empty(&udp_sk(sk)->reader_queue)) diff --combined net/ipv6/ip6_fib.c index d11a5578e4f8,a64d559fa513..17b945a2c550 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@@ -893,7 -893,7 +893,7 @@@ static int fib6_add_rt2node(struct fib6 ins = &fn->leaf; for (iter = leaf; iter; - iter = rcu_dereference_protected(iter->dst.rt6_next, + iter = rcu_dereference_protected(iter->rt6_next, lockdep_is_held(&rt->rt6i_table->tb6_lock))) { /* * Search for duplicates @@@ -950,7 -950,7 +950,7 @@@ break; next_iter: - ins = &iter->dst.rt6_next; + ins = &iter->rt6_next; } if (fallback_ins && !found) { @@@ -979,7 -979,7 +979,7 @@@ &sibling->rt6i_siblings); break; } - sibling = rcu_dereference_protected(sibling->dst.rt6_next, + sibling = rcu_dereference_protected(sibling->rt6_next, lockdep_is_held(&rt->rt6i_table->tb6_lock)); } /* For each sibling in the list, increment the counter of @@@ -1009,7 -1009,7 +1009,7 @@@ add if (err) return err; - rcu_assign_pointer(rt->dst.rt6_next, iter); + rcu_assign_pointer(rt->rt6_next, iter); atomic_inc(&rt->rt6i_ref); rcu_assign_pointer(rt->rt6i_node, fn); rcu_assign_pointer(*ins, rt); @@@ -1040,7 -1040,7 +1040,7 @@@ atomic_inc(&rt->rt6i_ref); rcu_assign_pointer(rt->rt6i_node, fn); - rt->dst.rt6_next = iter->dst.rt6_next; + rt->rt6_next = iter->rt6_next; rcu_assign_pointer(*ins, rt); call_fib6_entry_notifiers(info->nl_net, FIB_EVENT_ENTRY_REPLACE, rt, extack); @@@ -1059,14 -1059,14 +1059,14 @@@ if (nsiblings) { /* Replacing an ECMP route, remove all siblings */ - ins = &rt->dst.rt6_next; + ins = &rt->rt6_next; iter = rcu_dereference_protected(*ins, lockdep_is_held(&rt->rt6i_table->tb6_lock)); while (iter) { if (iter->rt6i_metric > rt->rt6i_metric) break; if (rt6_qualify_for_ecmp(iter)) { - *ins = iter->dst.rt6_next; + *ins = iter->rt6_next; iter->rt6i_node = NULL; fib6_purge_rt(iter, fn, info->nl_net); if (rcu_access_pointer(fn->rr_ptr) == iter) @@@ -1075,7 -1075,7 +1075,7 @@@ nsiblings--; info->nl_net->ipv6.rt6_stats->fib_rt_entries--; } else { - ins = &iter->dst.rt6_next; + ins = &iter->rt6_next; } iter = rcu_dereference_protected(*ins, lockdep_is_held(&rt->rt6i_table->tb6_lock)); @@@ -1241,28 -1241,23 +1241,28 @@@ out * If fib6_add_1 has cleared the old leaf pointer in the * super-tree leaf node we have to find a new one for it. */ - struct rt6_info *pn_leaf = rcu_dereference_protected(pn->leaf, - lockdep_is_held(&table->tb6_lock)); - if (pn != fn && pn_leaf == rt) { - pn_leaf = NULL; - RCU_INIT_POINTER(pn->leaf, NULL); - atomic_dec(&rt->rt6i_ref); - } - if (pn != fn && !pn_leaf && !(pn->fn_flags & RTN_RTINFO)) { - pn_leaf = fib6_find_prefix(info->nl_net, table, pn); -#if RT6_DEBUG >= 2 - if (!pn_leaf) { - WARN_ON(!pn_leaf); - pn_leaf = info->nl_net->ipv6.ip6_null_entry; + if (pn != fn) { + struct rt6_info *pn_leaf = + rcu_dereference_protected(pn->leaf, + lockdep_is_held(&table->tb6_lock)); + if (pn_leaf == rt) { + pn_leaf = NULL; + RCU_INIT_POINTER(pn->leaf, NULL); + atomic_dec(&rt->rt6i_ref); } + if (!pn_leaf && !(pn->fn_flags & RTN_RTINFO)) { + pn_leaf = fib6_find_prefix(info->nl_net, table, + pn); +#if RT6_DEBUG >= 2 + if (!pn_leaf) { + WARN_ON(!pn_leaf); + pn_leaf = + info->nl_net->ipv6.ip6_null_entry; + } #endif - atomic_inc(&pn_leaf->rt6i_ref); - rcu_assign_pointer(pn->leaf, pn_leaf); + atomic_inc(&pn_leaf->rt6i_ref); + rcu_assign_pointer(pn->leaf, pn_leaf); + } } #endif goto failure; @@@ -1649,7 -1644,7 +1649,7 @@@ static void fib6_del_route(struct fib6_ WARN_ON_ONCE(rt->rt6i_flags & RTF_CACHE); /* Unlink it */ - *rtp = rt->dst.rt6_next; + *rtp = rt->rt6_next; rt->rt6i_node = NULL; net->ipv6.rt6_stats->fib_rt_entries--; net->ipv6.rt6_stats->fib_discarded_routes++; @@@ -1677,7 -1672,7 +1677,7 @@@ FOR_WALKERS(net, w) { if (w->state == FWS_C && w->leaf == rt) { RT6_TRACE("walker %p adjusted by delroute\n", w); - w->leaf = rcu_dereference_protected(rt->dst.rt6_next, + w->leaf = rcu_dereference_protected(rt->rt6_next, lockdep_is_held(&table->tb6_lock)); if (!w->leaf) w->state = FWS_U; @@@ -1736,7 -1731,7 +1736,7 @@@ int fib6_del(struct rt6_info *rt, struc fib6_del_route(table, fn, rtp, info); return 0; } - rtp_next = &cur->dst.rt6_next; + rtp_next = &cur->rt6_next; } return -ENOENT; } @@@ -2147,8 -2142,8 +2147,8 @@@ int __init fib6_init(void if (ret) goto out_kmem_cache_create; - ret = __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib, - 0); + ret = rtnl_register_module(THIS_MODULE, PF_INET6, RTM_GETROUTE, NULL, + inet6_dump_fib, 0); if (ret) goto out_unregister_subsys; @@@ -2213,7 -2208,7 +2213,7 @@@ static int ipv6_route_yield(struct fib6 do { iter->w.leaf = rcu_dereference_protected( - iter->w.leaf->dst.rt6_next, + iter->w.leaf->rt6_next, lockdep_is_held(&iter->tbl->tb6_lock)); iter->skip--; if (!iter->skip && iter->w.leaf) @@@ -2279,7 -2274,7 +2279,7 @@@ static void *ipv6_route_seq_next(struc if (!v) goto iter_table; - n = rcu_dereference_bh(((struct rt6_info *)v)->dst.rt6_next); + n = rcu_dereference_bh(((struct rt6_info *)v)->rt6_next); if (n) { ++*pos; return n; diff --combined net/ipv6/ip6_tunnel.c index 9a7cf355bc8c,8a4610e84e58..8071f42cd8a0 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@@ -861,7 -861,7 +861,7 @@@ int ip6_tnl_rcv(struct ip6_tnl *t, stru struct metadata_dst *tun_dst, bool log_ecn_err) { - return __ip6_tnl_rcv(t, skb, tpi, NULL, ip6ip6_dscp_ecn_decapsulate, + return __ip6_tnl_rcv(t, skb, tpi, tun_dst, ip6ip6_dscp_ecn_decapsulate, log_ecn_err); } EXPORT_SYMBOL(ip6_tnl_rcv); @@@ -979,6 -979,9 +979,9 @@@ int ip6_tnl_xmit_ctl(struct ip6_tnl *t int ret = 0; struct net *net = t->net; + if (t->parms.collect_md) + return 1; + if ((p->flags & IP6_TNL_F_CAP_XMIT) || ((p->flags & IP6_TNL_F_CAP_PER_PACKET) && (ip6_tnl_get_cap(t, laddr, raddr) & IP6_TNL_F_CAP_XMIT))) { @@@ -1074,11 -1077,10 +1077,11 @@@ int ip6_tnl_xmit(struct sk_buff *skb, s memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr)); neigh_release(neigh); } - } else if (!(t->parms.flags & - (IP6_TNL_F_USE_ORIG_TCLASS | IP6_TNL_F_USE_ORIG_FWMARK))) { - /* enable the cache only only if the routing decision does - * not depend on the current inner header value + } else if (t->parms.proto != 0 && !(t->parms.flags & + (IP6_TNL_F_USE_ORIG_TCLASS | + IP6_TNL_F_USE_ORIG_FWMARK))) { + /* enable the cache only if neither the outer protocol nor the + * routing decision depends on the current inner header value */ use_cache = true; } @@@ -1677,11 -1679,11 +1680,11 @@@ int ip6_tnl_change_mtu(struct net_devic { struct ip6_tnl *tnl = netdev_priv(dev); - if (tnl->parms.proto == IPPROTO_IPIP) { - if (new_mtu < ETH_MIN_MTU) + if (tnl->parms.proto == IPPROTO_IPV6) { + if (new_mtu < IPV6_MIN_MTU) return -EINVAL; } else { - if (new_mtu < IPV6_MIN_MTU) + if (new_mtu < ETH_MIN_MTU) return -EINVAL; } if (new_mtu > 0xFFF8 - dev->hard_header_len) diff --combined net/mac80211/rx.c index 4daafb07602f,b3cff69bfd66..fd580614085b --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@@ -1607,23 -1607,16 +1607,16 @@@ ieee80211_rx_h_sta_process(struct ieee8 /* * Change STA power saving mode only at the end of a frame - * exchange sequence. + * exchange sequence, and only for a data or management + * frame as specified in IEEE 802.11-2016 11.2.3.2 */ if (!ieee80211_hw_check(&sta->local->hw, AP_LINK_PS) && !ieee80211_has_morefrags(hdr->frame_control) && - !ieee80211_is_back_req(hdr->frame_control) && + (ieee80211_is_mgmt(hdr->frame_control) || + ieee80211_is_data(hdr->frame_control)) && !(status->rx_flags & IEEE80211_RX_DEFERRED_RELEASE) && (rx->sdata->vif.type == NL80211_IFTYPE_AP || - rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && - /* - * PM bit is only checked in frames where it isn't reserved, - * in AP mode it's reserved in non-bufferable management frames - * (cf. IEEE 802.11-2012 8.2.4.1.7 Power Management field) - * BAR frames should be ignored as specified in - * IEEE 802.11-2012 10.2.1.2. - */ - (!ieee80211_is_mgmt(hdr->frame_control) || - ieee80211_is_bufferable_mmpdu(hdr->frame_control))) { + rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) { if (test_sta_flag(sta, WLAN_STA_PS_STA)) { if (!ieee80211_has_pm(hdr->frame_control)) sta_ps_end(sta); @@@ -3632,8 -3625,6 +3625,8 @@@ static bool ieee80211_accept_frame(stru } return true; case NL80211_IFTYPE_MESH_POINT: + if (ether_addr_equal(sdata->vif.addr, hdr->addr2)) + return false; if (multicast) return true; return ether_addr_equal(sdata->vif.addr, hdr->addr1); diff --combined net/packet/af_packet.c index 3b4d6a3cf190,ee7aa0ba3a67..2a80f19f0913 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@@ -247,12 -247,13 +247,13 @@@ static int packet_direct_xmit(struct sk struct sk_buff *orig_skb = skb; struct netdev_queue *txq; int ret = NETDEV_TX_BUSY; + bool again = false; if (unlikely(!netif_running(dev) || !netif_carrier_ok(dev))) goto drop; - skb = validate_xmit_skb_list(skb, dev); + skb = validate_xmit_skb_list(skb, dev, &again); if (skb != orig_skb) goto drop; @@@ -4073,12 -4074,12 +4074,12 @@@ static int packet_ioctl(struct socket * return 0; } -static unsigned int packet_poll(struct file *file, struct socket *sock, +static __poll_t packet_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct packet_sock *po = pkt_sk(sk); - unsigned int mask = datagram_poll(file, sock, wait); + __poll_t mask = datagram_poll(file, sock, wait); spin_lock_bh(&sk->sk_receive_queue.lock); if (po->rx_ring.pg_vec) { diff --combined net/sched/act_gact.c index a0ac42b3ed06,9d632e92cad0..b56986d41c87 --- a/net/sched/act_gact.c +++ b/net/sched/act_gact.c @@@ -159,7 -159,7 +159,7 @@@ static void tcf_gact_stats_update(struc if (action == TC_ACT_SHOT) this_cpu_ptr(gact->common.cpu_qstats)->drops += packets; - tm->lastuse = lastuse; + tm->lastuse = max_t(u64, tm->lastuse, lastuse); } static int tcf_gact_dump(struct sk_buff *skb, struct tc_action *a, @@@ -235,16 -235,14 +235,14 @@@ static __net_init int gact_init_net(str return tc_action_net_init(tn, &act_gact_ops); } - static void __net_exit gact_exit_net(struct net *net) + static void __net_exit gact_exit_net(struct list_head *net_list) { - struct tc_action_net *tn = net_generic(net, gact_net_id); - - tc_action_net_exit(tn); + tc_action_net_exit(net_list, gact_net_id); } static struct pernet_operations gact_net_ops = { .init = gact_init_net, - .exit = gact_exit_net, + .exit_batch = gact_exit_net, .id = &gact_net_id, .size = sizeof(struct tc_action_net), }; diff --combined net/sched/act_mirred.c index 08b61849c2a2,37e5e4decbd6..e6ff88f72900 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@@ -29,7 -29,6 +29,6 @@@ #include <net/tc_act/tc_mirred.h> static LIST_HEAD(mirred_list); - static DEFINE_SPINLOCK(mirred_list_lock); static bool tcf_mirred_is_act_redirect(int action) { @@@ -50,18 -49,15 +49,15 @@@ static bool tcf_mirred_act_wants_ingres } } - static void tcf_mirred_release(struct tc_action *a, int bind) + static void tcf_mirred_release(struct tc_action *a) { struct tcf_mirred *m = to_mirred(a); struct net_device *dev; - /* We could be called either in a RCU callback or with RTNL lock held. */ - spin_lock_bh(&mirred_list_lock); list_del(&m->tcfm_list); - dev = rcu_dereference_protected(m->tcfm_dev, 1); + dev = rtnl_dereference(m->tcfm_dev); if (dev) dev_put(dev); - spin_unlock_bh(&mirred_list_lock); } static const struct nla_policy mirred_policy[TCA_MIRRED_MAX + 1] = { @@@ -139,8 -135,6 +135,6 @@@ static int tcf_mirred_init(struct net * m->tcf_action = parm->action; m->tcfm_eaction = parm->eaction; if (dev != NULL) { - m->tcfm_ifindex = parm->ifindex; - m->net = net; if (ret != ACT_P_CREATED) dev_put(rcu_dereference_protected(m->tcfm_dev, 1)); dev_hold(dev); @@@ -149,9 -143,7 +143,7 @@@ } if (ret == ACT_P_CREATED) { - spin_lock_bh(&mirred_list_lock); list_add(&m->tcfm_list, &mirred_list); - spin_unlock_bh(&mirred_list_lock); tcf_idr_insert(tn, *a); } @@@ -239,7 -231,7 +231,7 @@@ static void tcf_stats_update(struct tc_ struct tcf_t *tm = &m->tcf_tm; _bstats_cpu_update(this_cpu_ptr(a->cpu_bstats), bytes, packets); - tm->lastuse = lastuse; + tm->lastuse = max_t(u64, tm->lastuse, lastuse); } static int tcf_mirred_dump(struct sk_buff *skb, struct tc_action *a, int bind, @@@ -247,13 -239,14 +239,14 @@@ { unsigned char *b = skb_tail_pointer(skb); struct tcf_mirred *m = to_mirred(a); + struct net_device *dev = rtnl_dereference(m->tcfm_dev); struct tc_mirred opt = { .index = m->tcf_index, .action = m->tcf_action, .refcnt = m->tcf_refcnt - ref, .bindcnt = m->tcf_bindcnt - bind, .eaction = m->tcfm_eaction, - .ifindex = m->tcfm_ifindex, + .ifindex = dev ? dev->ifindex : 0, }; struct tcf_t t; @@@ -294,7 -287,6 +287,6 @@@ static int mirred_device_event(struct n ASSERT_RTNL(); if (event == NETDEV_UNREGISTER) { - spin_lock_bh(&mirred_list_lock); list_for_each_entry(m, &mirred_list, tcfm_list) { if (rcu_access_pointer(m->tcfm_dev) == dev) { dev_put(dev); @@@ -304,7 -296,6 +296,6 @@@ RCU_INIT_POINTER(m->tcfm_dev, NULL); } } - spin_unlock_bh(&mirred_list_lock); } return NOTIFY_DONE; @@@ -318,7 -309,7 +309,7 @@@ static struct net_device *tcf_mirred_ge { struct tcf_mirred *m = to_mirred(a); - return __dev_get_by_index(m->net, m->tcfm_ifindex); + return rtnl_dereference(m->tcfm_dev); } static struct tc_action_ops act_mirred_ops = { @@@ -343,16 -334,14 +334,14 @@@ static __net_init int mirred_init_net(s return tc_action_net_init(tn, &act_mirred_ops); } - static void __net_exit mirred_exit_net(struct net *net) + static void __net_exit mirred_exit_net(struct list_head *net_list) { - struct tc_action_net *tn = net_generic(net, mirred_net_id); - - tc_action_net_exit(tn); + tc_action_net_exit(net_list, mirred_net_id); } static struct pernet_operations mirred_net_ops = { .init = mirred_init_net, - .exit = mirred_exit_net, + .exit_batch = mirred_exit_net, .id = &mirred_net_id, .size = sizeof(struct tc_action_net), }; diff --combined net/sctp/socket.c index 8f7536de5f41,a5e2150ab013..eb68ae261054 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@@ -201,6 -201,22 +201,22 @@@ static void sctp_for_each_tx_datachunk( cb(chunk); } + static void sctp_for_each_rx_skb(struct sctp_association *asoc, struct sock *sk, + void (*cb)(struct sk_buff *, struct sock *)) + + { + struct sk_buff *skb, *tmp; + + sctp_skb_for_each(skb, &asoc->ulpq.lobby, tmp) + cb(skb, sk); + + sctp_skb_for_each(skb, &asoc->ulpq.reasm, tmp) + cb(skb, sk); + + sctp_skb_for_each(skb, &asoc->ulpq.reasm_uo, tmp) + cb(skb, sk); + } + /* Verify that this is a valid address. */ static inline int sctp_verify_addr(struct sock *sk, union sctp_addr *addr, int len) @@@ -1528,7 -1544,7 +1544,7 @@@ static void sctp_close(struct sock *sk lock_sock_nested(sk, SINGLE_DEPTH_NESTING); sk->sk_shutdown = SHUTDOWN_MASK; - sk->sk_state = SCTP_SS_CLOSING; + inet_sk_set_state(sk, SCTP_SS_CLOSING); ep = sctp_sk(sk)->ep; @@@ -1554,6 -1570,7 +1570,7 @@@ if (data_was_unread || !skb_queue_empty(&asoc->ulpq.lobby) || !skb_queue_empty(&asoc->ulpq.reasm) || + !skb_queue_empty(&asoc->ulpq.reasm_uo) || (sock_flag(sk, SOCK_LINGER) && !sk->sk_lingertime)) { struct sctp_chunk *chunk; @@@ -2002,7 -2019,20 +2019,20 @@@ static int sctp_sendmsg(struct sock *sk if (err < 0) goto out_free; - wait_connect = true; + /* If stream interleave is enabled, wait_connect has to be + * done earlier than data enqueue, as it needs to make data + * or idata according to asoc->intl_enable which is set + * after connection is done. + */ + if (sctp_sk(asoc->base.sk)->strm_interleave) { + timeo = sock_sndtimeo(sk, 0); + err = sctp_wait_for_connect(asoc, &timeo); + if (err) + goto out_unlock; + } else { + wait_connect = true; + } + pr_debug("%s: we associated primitively\n", __func__); } @@@ -2281,7 -2311,7 +2311,7 @@@ static int sctp_setsockopt_events(struc if (!event) return -ENOMEM; - sctp_ulpq_tail_event(&asoc->ulpq, event); + asoc->stream.si->enqueue_event(&asoc->ulpq, event); } } @@@ -3180,7 -3210,7 +3210,7 @@@ static int sctp_setsockopt_maxseg(struc if (val == 0) { val = asoc->pathmtu - sp->pf->af->net_header_len; val -= sizeof(struct sctphdr) + - sizeof(struct sctp_data_chunk); + sctp_datachk_len(&asoc->stream); } asoc->user_frag = val; asoc->frag_point = sctp_frag_point(asoc, asoc->pathmtu); @@@ -3350,7 -3380,10 +3380,10 @@@ static int sctp_setsockopt_fragment_int if (get_user(val, (int __user *)optval)) return -EFAULT; - sctp_sk(sk)->frag_interleave = (val == 0) ? 0 : 1; + sctp_sk(sk)->frag_interleave = !!val; + + if (!sctp_sk(sk)->frag_interleave) + sctp_sk(sk)->strm_interleave = 0; return 0; } @@@ -4023,6 -4056,40 +4056,40 @@@ out return retval; } + static int sctp_setsockopt_interleaving_supported(struct sock *sk, + char __user *optval, + unsigned int optlen) + { + struct sctp_sock *sp = sctp_sk(sk); + struct net *net = sock_net(sk); + struct sctp_assoc_value params; + int retval = -EINVAL; + + if (optlen < sizeof(params)) + goto out; + + optlen = sizeof(params); + if (copy_from_user(&params, optval, optlen)) { + retval = -EFAULT; + goto out; + } + + if (params.assoc_id) + goto out; + + if (!net->sctp.intl_enable || !sp->frag_interleave) { + retval = -EPERM; + goto out; + } + + sp->strm_interleave = !!params.assoc_value; + + retval = 0; + + out: + return retval; + } + /* API 6.2 setsockopt(), getsockopt() * * Applications use setsockopt() and getsockopt() to set or retrieve @@@ -4210,6 -4277,10 +4277,10 @@@ static int sctp_setsockopt(struct sock case SCTP_STREAM_SCHEDULER_VALUE: retval = sctp_setsockopt_scheduler_value(sk, optval, optlen); break; + case SCTP_INTERLEAVING_SUPPORTED: + retval = sctp_setsockopt_interleaving_supported(sk, optval, + optlen); + break; default: retval = -ENOPROTOOPT; break; @@@ -4586,7 -4657,7 +4657,7 @@@ static void sctp_shutdown(struct sock * if (how & SEND_SHUTDOWN && !list_empty(&ep->asocs)) { struct sctp_association *asoc; - sk->sk_state = SCTP_SS_CLOSING; + inet_sk_set_state(sk, SCTP_SS_CLOSING); asoc = list_entry(ep->asocs.next, struct sctp_association, asocs); sctp_primitive_SHUTDOWN(net, asoc, NULL); @@@ -4680,20 -4751,11 +4751,11 @@@ int sctp_get_sctp_info(struct sock *sk EXPORT_SYMBOL_GPL(sctp_get_sctp_info); /* use callback to avoid exporting the core structure */ - int sctp_transport_walk_start(struct rhashtable_iter *iter) + void sctp_transport_walk_start(struct rhashtable_iter *iter) { - int err; - rhltable_walk_enter(&sctp_transport_hashtable, iter); - err = rhashtable_walk_start(iter); - if (err && err != -EAGAIN) { - rhashtable_walk_stop(iter); - rhashtable_walk_exit(iter); - return err; - } - - return 0; + rhashtable_walk_start(iter); } void sctp_transport_walk_stop(struct rhashtable_iter *iter) @@@ -4784,12 -4846,10 +4846,10 @@@ int sctp_for_each_transport(int (*cb)(s struct net *net, int *pos, void *p) { struct rhashtable_iter hti; struct sctp_transport *tsp; - int ret; + int ret = 0; again: - ret = sctp_transport_walk_start(&hti); - if (ret) - return ret; + sctp_transport_walk_start(&hti); tsp = sctp_transport_get_idx(net, &hti, *pos + 1); for (; !IS_ERR_OR_NULL(tsp); tsp = sctp_transport_get_next(net, &hti)) { @@@ -6984,6 -7044,47 +7044,47 @@@ out return retval; } + static int sctp_getsockopt_interleaving_supported(struct sock *sk, int len, + char __user *optval, + int __user *optlen) + { + struct sctp_assoc_value params; + struct sctp_association *asoc; + int retval = -EFAULT; + + if (len < sizeof(params)) { + retval = -EINVAL; + goto out; + } + + len = sizeof(params); + if (copy_from_user(&params, optval, len)) + goto out; + + asoc = sctp_id2assoc(sk, params.assoc_id); + if (asoc) { + params.assoc_value = asoc->intl_enable; + } else if (!params.assoc_id) { + struct sctp_sock *sp = sctp_sk(sk); + + params.assoc_value = sp->strm_interleave; + } else { + retval = -EINVAL; + goto out; + } + + if (put_user(len, optlen)) + goto out; + + if (copy_to_user(optval, &params, len)) + goto out; + + retval = 0; + + out: + return retval; + } + static int sctp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { @@@ -7174,6 -7275,10 +7275,10 @@@ retval = sctp_getsockopt_scheduler_value(sk, len, optval, optlen); break; + case SCTP_INTERLEAVING_SUPPORTED: + retval = sctp_getsockopt_interleaving_supported(sk, len, optval, + optlen); + break; default: retval = -ENOPROTOOPT; break; @@@ -7408,13 -7513,13 +7513,13 @@@ static int sctp_listen_start(struct soc * sockets. * */ - sk->sk_state = SCTP_SS_LISTENING; + inet_sk_set_state(sk, SCTP_SS_LISTENING); if (!ep->base.bind_addr.port) { if (sctp_autobind(sk)) return -EAGAIN; } else { if (sctp_get_port(sk, inet_sk(sk)->inet_num)) { - sk->sk_state = SCTP_SS_CLOSED; + inet_sk_set_state(sk, SCTP_SS_CLOSED); return -EADDRINUSE; } } @@@ -7500,11 -7605,11 +7605,11 @@@ out * here, again, by modeling the current TCP/UDP code. We don't have * a good way to test with it yet. */ -unsigned int sctp_poll(struct file *file, struct socket *sock, poll_table *wait) +__poll_t sctp_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct sctp_sock *sp = sctp_sk(sk); - unsigned int mask; + __poll_t mask; poll_wait(file, sk_sleep(sk), wait); @@@ -8411,11 -8516,7 +8516,7 @@@ static void sctp_sock_migrate(struct so } - sctp_skb_for_each(skb, &assoc->ulpq.reasm, tmp) - sctp_skb_set_owner_r_frag(skb, newsk); - - sctp_skb_for_each(skb, &assoc->ulpq.lobby, tmp) - sctp_skb_set_owner_r_frag(skb, newsk); + sctp_for_each_rx_skb(assoc, newsk, sctp_skb_set_owner_r_frag); /* Set the type of socket to indicate that it is peeled off from the * original UDP-style socket or created with the accept() call on a @@@ -8441,10 -8542,10 +8542,10 @@@ * is called, set RCV_SHUTDOWN flag. */ if (sctp_state(assoc, CLOSED) && sctp_style(newsk, TCP)) { - newsk->sk_state = SCTP_SS_CLOSED; + inet_sk_set_state(newsk, SCTP_SS_CLOSED); newsk->sk_shutdown |= RCV_SHUTDOWN; } else { - newsk->sk_state = SCTP_SS_ESTABLISHED; + inet_sk_set_state(newsk, SCTP_SS_ESTABLISHED); } release_sock(newsk); diff --combined net/sctp/stream.c index 524dfeb94c41,06b644dd858c..cedf672487f9 --- a/net/sctp/stream.c +++ b/net/sctp/stream.c @@@ -156,9 -156,9 +156,9 @@@ int sctp_stream_init(struct sctp_strea sctp_stream_outq_migrate(stream, NULL, outcnt); sched->sched_all(stream); - i = sctp_stream_alloc_out(stream, outcnt, gfp); - if (i) - return i; + ret = sctp_stream_alloc_out(stream, outcnt, gfp); + if (ret) + goto out; stream->outcnt = outcnt; for (i = 0; i < stream->outcnt; i++) @@@ -167,20 -167,23 +167,21 @@@ sched->init(stream); in: + sctp_stream_interleave_init(stream); if (!incnt) goto out; - i = sctp_stream_alloc_in(stream, incnt, gfp); - if (i) { - ret = -ENOMEM; - goto free; + ret = sctp_stream_alloc_in(stream, incnt, gfp); + if (ret) { + sched->free(stream); + kfree(stream->out); + stream->out = NULL; + stream->outcnt = 0; + goto out; } stream->incnt = incnt; - goto out; -free: - sched->free(stream); - kfree(stream->out); - stream->out = NULL; out: return ret; } @@@ -213,11 -216,13 +214,13 @@@ void sctp_stream_clear(struct sctp_stre { int i; - for (i = 0; i < stream->outcnt; i++) - stream->out[i].ssn = 0; + for (i = 0; i < stream->outcnt; i++) { + stream->out[i].mid = 0; + stream->out[i].mid_uo = 0; + } for (i = 0; i < stream->incnt; i++) - stream->in[i].ssn = 0; + stream->in[i].mid = 0; } void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new) @@@ -604,10 -609,10 +607,10 @@@ struct sctp_chunk *sctp_process_strrese } for (i = 0; i < nums; i++) - stream->in[ntohs(str_p[i])].ssn = 0; + stream->in[ntohs(str_p[i])].mid = 0; } else { for (i = 0; i < stream->incnt; i++) - stream->in[i].ssn = 0; + stream->in[i].mid = 0; } result = SCTP_STRRESET_PERFORMED; @@@ -751,8 -756,7 +754,7 @@@ struct sctp_chunk *sctp_process_strrese * performed. */ max_tsn_seen = sctp_tsnmap_get_max_tsn_seen(&asoc->peer.tsn_map); - sctp_ulpq_reasm_flushtsn(&asoc->ulpq, max_tsn_seen); - sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC); + asoc->stream.si->report_ftsn(&asoc->ulpq, max_tsn_seen); /* G1: Compute an appropriate value for the Receiver's Next TSN -- the * TSN that the peer should use to send the next DATA chunk. The @@@ -781,10 -785,12 +783,12 @@@ /* G5: The next expected and outgoing SSNs MUST be reset to 0 for all * incoming and outgoing streams. */ - for (i = 0; i < stream->outcnt; i++) - stream->out[i].ssn = 0; + for (i = 0; i < stream->outcnt; i++) { + stream->out[i].mid = 0; + stream->out[i].mid_uo = 0; + } for (i = 0; i < stream->incnt; i++) - stream->in[i].ssn = 0; + stream->in[i].mid = 0; result = SCTP_STRRESET_PERFORMED; @@@ -974,11 -980,15 +978,15 @@@ struct sctp_chunk *sctp_process_strrese if (result == SCTP_STRRESET_PERFORMED) { if (nums) { - for (i = 0; i < nums; i++) - stream->out[ntohs(str_p[i])].ssn = 0; + for (i = 0; i < nums; i++) { + stream->out[ntohs(str_p[i])].mid = 0; + stream->out[ntohs(str_p[i])].mid_uo = 0; + } } else { - for (i = 0; i < stream->outcnt; i++) - stream->out[i].ssn = 0; + for (i = 0; i < stream->outcnt; i++) { + stream->out[i].mid = 0; + stream->out[i].mid_uo = 0; + } } flags = SCTP_STREAM_RESET_OUTGOING_SSN; @@@ -1021,8 -1031,7 +1029,7 @@@ &asoc->peer.tsn_map); LIST_HEAD(temp); - sctp_ulpq_reasm_flushtsn(&asoc->ulpq, mtsn); - sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC); + asoc->stream.si->report_ftsn(&asoc->ulpq, mtsn); sctp_tsnmap_init(&asoc->peer.tsn_map, SCTP_TSN_MAP_INITIAL, @@@ -1040,10 -1049,12 +1047,12 @@@ asoc->ctsn_ack_point = asoc->next_tsn - 1; asoc->adv_peer_ack_point = asoc->ctsn_ack_point; - for (i = 0; i < stream->outcnt; i++) - stream->out[i].ssn = 0; + for (i = 0; i < stream->outcnt; i++) { + stream->out[i].mid = 0; + stream->out[i].mid_uo = 0; + } for (i = 0; i < stream->incnt; i++) - stream->in[i].ssn = 0; + stream->in[i].mid = 0; } for (i = 0; i < stream->outcnt; i++) diff --combined net/smc/af_smc.c index 449f62e1e270,daf8075f5a4c..b6e4e2e4fe12 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@@ -520,7 -520,7 +520,7 @@@ decline_rdma smc->use_fallback = true; if (reason_code && (reason_code != SMC_CLC_DECL_REPLY)) { rc = smc_clc_send_decline(smc, reason_code); - if (rc < sizeof(struct smc_clc_msg_decline)) + if (rc < 0) goto out_err; } goto out_connected; @@@ -751,14 -751,16 +751,16 @@@ static void smc_listen_work(struct work { struct smc_sock *new_smc = container_of(work, struct smc_sock, smc_listen_work); + struct smc_clc_msg_proposal_prefix *pclc_prfx; struct socket *newclcsock = new_smc->clcsock; struct smc_sock *lsmc = new_smc->listen_smc; struct smc_clc_msg_accept_confirm cclc; int local_contact = SMC_REUSE_CONTACT; struct sock *newsmcsk = &new_smc->sk; - struct smc_clc_msg_proposal pclc; + struct smc_clc_msg_proposal *pclc; struct smc_ib_device *smcibdev; struct sockaddr_in peeraddr; + u8 buf[SMC_CLC_MAX_LEN]; struct smc_link *link; int reason_code = 0; int rc = 0, len; @@@ -775,7 -777,7 +777,7 @@@ /* do inband token exchange - *wait for and receive SMC Proposal CLC message */ - reason_code = smc_clc_wait_msg(new_smc, &pclc, sizeof(pclc), + reason_code = smc_clc_wait_msg(new_smc, &buf, sizeof(buf), SMC_CLC_PROPOSAL); if (reason_code < 0) goto out_err; @@@ -804,8 -806,11 +806,11 @@@ reason_code = SMC_CLC_DECL_CNFERR; /* configuration error */ goto decline_rdma; } - if ((pclc.outgoing_subnet != subnet) || - (pclc.prefix_len != prefix_len)) { + + pclc = (struct smc_clc_msg_proposal *)&buf; + pclc_prfx = smc_clc_proposal_get_prefix(pclc); + if (pclc_prfx->outgoing_subnet != subnet || + pclc_prfx->prefix_len != prefix_len) { reason_code = SMC_CLC_DECL_CNFERR; /* configuration error */ goto decline_rdma; } @@@ -816,7 -821,7 +821,7 @@@ /* allocate connection / link group */ mutex_lock(&smc_create_lgr_pending); local_contact = smc_conn_create(new_smc, peeraddr.sin_addr.s_addr, - smcibdev, ibport, &pclc.lcl, 0); + smcibdev, ibport, &pclc->lcl, 0); if (local_contact < 0) { rc = local_contact; if (rc == -ENOMEM) @@@ -879,11 -884,9 +884,9 @@@ } /* QP confirmation over RoCE fabric */ reason_code = smc_serv_conf_first_link(new_smc); - if (reason_code < 0) { + if (reason_code < 0) /* peer is not aware of a problem */ - rc = reason_code; goto out_err_unlock; - } if (reason_code > 0) goto decline_rdma_unlock; } @@@ -916,8 -919,7 +919,7 @@@ decline_rdma smc_conn_free(&new_smc->conn); new_smc->use_fallback = true; if (reason_code && (reason_code != SMC_CLC_DECL_REPLY)) { - rc = smc_clc_send_decline(new_smc, reason_code); - if (rc < sizeof(struct smc_clc_msg_decline)) + if (smc_clc_send_decline(new_smc, reason_code) < 0) goto out_err; } goto out_connected; @@@ -1107,7 -1109,7 +1109,7 @@@ out return rc; } -static unsigned int smc_accept_poll(struct sock *parent) +static __poll_t smc_accept_poll(struct sock *parent) { struct smc_sock *isk; struct sock *sk; @@@ -1126,11 -1128,11 +1128,11 @@@ return 0; } -static unsigned int smc_poll(struct file *file, struct socket *sock, +static __poll_t smc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; - unsigned int mask = 0; + __poll_t mask = 0; struct smc_sock *smc; int rc; diff --combined net/smc/smc_clc.c index 511548085d16,abf7ceb6690b..8ac51583a063 --- a/net/smc/smc_clc.c +++ b/net/smc/smc_clc.c @@@ -22,6 -22,54 +22,54 @@@ #include "smc_clc.h" #include "smc_ib.h" + /* check if received message has a correct header length and contains valid + * heading and trailing eyecatchers + */ + static bool smc_clc_msg_hdr_valid(struct smc_clc_msg_hdr *clcm) + { + struct smc_clc_msg_proposal_prefix *pclc_prfx; + struct smc_clc_msg_accept_confirm *clc; + struct smc_clc_msg_proposal *pclc; + struct smc_clc_msg_decline *dclc; + struct smc_clc_msg_trail *trl; + + if (memcmp(clcm->eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER))) + return false; + switch (clcm->type) { + case SMC_CLC_PROPOSAL: + pclc = (struct smc_clc_msg_proposal *)clcm; + pclc_prfx = smc_clc_proposal_get_prefix(pclc); + if (ntohs(pclc->hdr.length) != + sizeof(*pclc) + ntohs(pclc->iparea_offset) + + sizeof(*pclc_prfx) + + pclc_prfx->ipv6_prefixes_cnt * + sizeof(struct smc_clc_ipv6_prefix) + + sizeof(*trl)) + return false; + trl = (struct smc_clc_msg_trail *) + ((u8 *)pclc + ntohs(pclc->hdr.length) - sizeof(*trl)); + break; + case SMC_CLC_ACCEPT: + case SMC_CLC_CONFIRM: + clc = (struct smc_clc_msg_accept_confirm *)clcm; + if (ntohs(clc->hdr.length) != sizeof(*clc)) + return false; + trl = &clc->trl; + break; + case SMC_CLC_DECLINE: + dclc = (struct smc_clc_msg_decline *)clcm; + if (ntohs(dclc->hdr.length) != sizeof(*dclc)) + return false; + trl = &dclc->trl; + break; + default: + return false; + } + if (memcmp(trl->eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER))) + return false; + return true; + } + /* Wait for data on the tcp-socket, analyze received data * Returns: * 0 if success and it was not a decline that we received. @@@ -35,7 -83,7 +83,7 @@@ int smc_clc_wait_msg(struct smc_sock *s struct smc_clc_msg_hdr *clcm = buf; struct msghdr msg = {NULL, 0}; int reason_code = 0; - struct kvec vec; + struct kvec vec = {buf, buflen}; int len, datlen; int krflags; @@@ -43,15 -91,12 +91,15 @@@ * so we don't consume any subsequent CLC message or payload data * in the TCP byte stream */ - vec.iov_base = buf; - vec.iov_len = buflen; + /* + * Caller must make sure that buflen is no less than + * sizeof(struct smc_clc_msg_hdr) + */ krflags = MSG_PEEK | MSG_WAITALL; smc->clcsock->sk->sk_rcvtimeo = CLC_WAIT_TIME; - len = kernel_recvmsg(smc->clcsock, &msg, &vec, 1, - sizeof(struct smc_clc_msg_hdr), krflags); + iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &vec, 1, + sizeof(struct smc_clc_msg_hdr)); + len = sock_recvmsg(smc->clcsock, &msg, krflags); if (signal_pending(current)) { reason_code = -EINTR; clc_sk->sk_err = EINTR; @@@ -75,9 -120,7 +123,7 @@@ } datlen = ntohs(clcm->length); if ((len < sizeof(struct smc_clc_msg_hdr)) || - (datlen < sizeof(struct smc_clc_msg_decline)) || - (datlen > sizeof(struct smc_clc_msg_accept_confirm)) || - memcmp(clcm->eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER)) || + (datlen > buflen) || ((clcm->type != SMC_CLC_DECLINE) && (clcm->type != expected_type))) { smc->sk.sk_err = EPROTO; @@@ -86,12 -129,13 +132,12 @@@ } /* receive the complete CLC message */ - vec.iov_base = buf; - vec.iov_len = buflen; memset(&msg, 0, sizeof(struct msghdr)); + iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &vec, 1, buflen); krflags = MSG_WAITALL; smc->clcsock->sk->sk_rcvtimeo = CLC_WAIT_TIME; - len = kernel_recvmsg(smc->clcsock, &msg, &vec, 1, datlen, krflags); + len = sock_recvmsg(smc->clcsock, &msg, krflags); - if (len < datlen) { + if (len < datlen || !smc_clc_msg_hdr_valid(clcm)) { smc->sk.sk_err = EPROTO; reason_code = -EPROTO; goto out; @@@ -135,7 -179,7 +181,7 @@@ int smc_clc_send_decline(struct smc_soc smc->sk.sk_err = EPROTO; if (len < 0) smc->sk.sk_err = -len; - return len; + return sock_error(&smc->sk); } /* send CLC PROPOSAL message across internal TCP socket */ @@@ -143,33 -187,43 +189,43 @@@ int smc_clc_send_proposal(struct smc_so struct smc_ib_device *smcibdev, u8 ibport) { + struct smc_clc_msg_proposal_prefix pclc_prfx; struct smc_clc_msg_proposal pclc; + struct smc_clc_msg_trail trl; int reason_code = 0; + struct kvec vec[3]; struct msghdr msg; - struct kvec vec; - int len, rc; + int len, plen, rc; /* send SMC Proposal CLC message */ + plen = sizeof(pclc) + sizeof(pclc_prfx) + sizeof(trl); memset(&pclc, 0, sizeof(pclc)); memcpy(pclc.hdr.eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER)); pclc.hdr.type = SMC_CLC_PROPOSAL; - pclc.hdr.length = htons(sizeof(pclc)); + pclc.hdr.length = htons(plen); pclc.hdr.version = SMC_CLC_V1; /* SMC version */ memcpy(pclc.lcl.id_for_peer, local_systemid, sizeof(local_systemid)); memcpy(&pclc.lcl.gid, &smcibdev->gid[ibport - 1], SMC_GID_SIZE); memcpy(&pclc.lcl.mac, &smcibdev->mac[ibport - 1], ETH_ALEN); + pclc.iparea_offset = htons(0); + memset(&pclc_prfx, 0, sizeof(pclc_prfx)); /* determine subnet and mask from internal TCP socket */ - rc = smc_netinfo_by_tcpsk(smc->clcsock, &pclc.outgoing_subnet, - &pclc.prefix_len); + rc = smc_netinfo_by_tcpsk(smc->clcsock, &pclc_prfx.outgoing_subnet, + &pclc_prfx.prefix_len); if (rc) return SMC_CLC_DECL_CNFERR; /* configuration error */ - memcpy(pclc.trl.eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER)); + pclc_prfx.ipv6_prefixes_cnt = 0; + memcpy(trl.eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER)); memset(&msg, 0, sizeof(msg)); - vec.iov_base = &pclc; - vec.iov_len = sizeof(pclc); + vec[0].iov_base = &pclc; + vec[0].iov_len = sizeof(pclc); + vec[1].iov_base = &pclc_prfx; + vec[1].iov_len = sizeof(pclc_prfx); + vec[2].iov_base = &trl; + vec[2].iov_len = sizeof(trl); /* due to the few bytes needed for clc-handshake this cannot block */ - len = kernel_sendmsg(smc->clcsock, &msg, &vec, 1, sizeof(pclc)); + len = kernel_sendmsg(smc->clcsock, &msg, vec, 3, plen); if (len < sizeof(pclc)) { if (len >= 0) { reason_code = -ENETUNREACH; diff --combined net/socket.c index 092baa464afc,bbd2e9ceb692..60d05479b2c1 --- a/net/socket.c +++ b/net/socket.c @@@ -118,7 -118,7 +118,7 @@@ static ssize_t sock_write_iter(struct k static int sock_mmap(struct file *file, struct vm_area_struct *vma); static int sock_close(struct inode *inode, struct file *file); -static unsigned int sock_poll(struct file *file, +static __poll_t sock_poll(struct file *file, struct poll_table_struct *wait); static long sock_ioctl(struct file *file, unsigned int cmd, unsigned long arg); #ifdef CONFIG_COMPAT @@@ -163,12 -163,6 +163,6 @@@ static DEFINE_SPINLOCK(net_family_lock) static const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly; /* - * Statistics counters of the socket lists - */ - - static DEFINE_PER_CPU(int, sockets_in_use); - - /* * Support routines. * Move socket addresses back and forth across the kernel/user * divide and look after the messy bits. @@@ -578,7 -572,6 +572,6 @@@ struct socket *sock_alloc(void inode->i_gid = current_fsgid(); inode->i_op = &sockfs_inode_ops; - this_cpu_add(sockets_in_use, 1); return sock; } EXPORT_SYMBOL(sock_alloc); @@@ -605,7 -598,6 +598,6 @@@ void sock_release(struct socket *sock if (rcu_dereference_protected(sock->wq, 1)->fasync_list) pr_err("%s: fasync list not empty!\n", __func__); - this_cpu_sub(sockets_in_use, 1); if (!sock->file) { iput(SOCK_INODE(sock)); return; @@@ -1095,9 -1087,9 +1087,9 @@@ out_release EXPORT_SYMBOL(sock_create_lite); /* No kernel lock held - perfect */ -static unsigned int sock_poll(struct file *file, poll_table *wait) +static __poll_t sock_poll(struct file *file, poll_table *wait) { - unsigned int busy_flag = 0; + __poll_t busy_flag = 0; struct socket *sock; /* @@@ -2622,17 -2614,8 +2614,8 @@@ core_initcall(sock_init); /* early init #ifdef CONFIG_PROC_FS void socket_seq_show(struct seq_file *seq) { - int cpu; - int counter = 0; - - for_each_possible_cpu(cpu) - counter += per_cpu(sockets_in_use, cpu); - - /* It can be negative, by the way. 8) */ - if (counter < 0) - counter = 0; - - seq_printf(seq, "sockets: used %d\n", counter); + seq_printf(seq, "sockets: used %d\n", + sock_inuse_get(seq->private)); } #endif /* CONFIG_PROC_FS */ diff --combined net/tipc/socket.c index 2aa46e8cd8fe,b51d5cba5094..cf9644ea13ba --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@@ -710,13 -710,13 +710,13 @@@ static int tipc_getname(struct socket * * imply that the operation will succeed, merely that it should be performed * and will not block. */ -static unsigned int tipc_poll(struct file *file, struct socket *sock, +static __poll_t tipc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct tipc_sock *tsk = tipc_sk(sk); struct tipc_group *grp = tsk->group; - u32 revents = 0; + __poll_t revents = 0; sock_poll_wait(file, sk_sleep(sk), wait); @@@ -2640,9 -2640,7 +2640,7 @@@ void tipc_sk_reinit(struct net *net rhashtable_walk_enter(&tn->sk_rht, &iter); do { - tsk = ERR_PTR(rhashtable_walk_start(&iter)); - if (IS_ERR(tsk)) - goto walk_stop; + rhashtable_walk_start(&iter); while ((tsk = rhashtable_walk_next(&iter)) && !IS_ERR(tsk)) { spin_lock_bh(&tsk->sk.sk_lock.slock); @@@ -2651,7 -2649,7 +2649,7 @@@ msg_set_orignode(msg, tn->own_addr); spin_unlock_bh(&tsk->sk.sk_lock.slock); } - walk_stop: + rhashtable_walk_stop(&iter); } while (tsk == ERR_PTR(-EAGAIN)); } diff --combined net/wireless/nl80211.c index 2b3dbcd40e46,79a9ff682b7e..c084dd2205ac --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@@ -734,11 -734,12 +734,12 @@@ struct key_parse bool def_uni, def_multi; }; - static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) + static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key, + struct key_parse *k) { struct nlattr *tb[NL80211_KEY_MAX + 1]; int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, - nl80211_key_policy, NULL); + nl80211_key_policy, info->extack); if (err) return err; @@@ -771,7 -772,8 +772,8 @@@ if (tb[NL80211_KEY_TYPE]) { k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) - return -EINVAL; + return genl_err_attr(info, -EINVAL, + tb[NL80211_KEY_TYPE]); } if (tb[NL80211_KEY_DEFAULT_TYPES]) { @@@ -779,7 -781,8 +781,8 @@@ err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, tb[NL80211_KEY_DEFAULT_TYPES], - nl80211_key_default_policy, NULL); + nl80211_key_default_policy, + info->extack); if (err) return err; @@@ -820,8 -823,10 +823,10 @@@ static int nl80211_parse_key_old(struc if (info->attrs[NL80211_ATTR_KEY_TYPE]) { k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); - if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) + if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) { + GENL_SET_ERR_MSG(info, "key type out of range"); return -EINVAL; + } } if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { @@@ -850,31 -855,42 +855,42 @@@ static int nl80211_parse_key(struct gen k->type = -1; if (info->attrs[NL80211_ATTR_KEY]) - err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); + err = nl80211_parse_key_new(info, info->attrs[NL80211_ATTR_KEY], k); else err = nl80211_parse_key_old(info, k); if (err) return err; - if (k->def && k->defmgmt) + if (k->def && k->defmgmt) { + GENL_SET_ERR_MSG(info, "key with def && defmgmt is invalid"); return -EINVAL; + } if (k->defmgmt) { - if (k->def_uni || !k->def_multi) + if (k->def_uni || !k->def_multi) { + GENL_SET_ERR_MSG(info, "defmgmt key must be mcast"); return -EINVAL; + } } if (k->idx != -1) { if (k->defmgmt) { - if (k->idx < 4 || k->idx > 5) + if (k->idx < 4 || k->idx > 5) { + GENL_SET_ERR_MSG(info, + "defmgmt key idx not 4 or 5"); return -EINVAL; + } } else if (k->def) { - if (k->idx < 0 || k->idx > 3) + if (k->idx < 0 || k->idx > 3) { + GENL_SET_ERR_MSG(info, "def key idx not 0-3"); return -EINVAL; + } } else { - if (k->idx < 0 || k->idx > 5) + if (k->idx < 0 || k->idx > 5) { + GENL_SET_ERR_MSG(info, "key idx not 0-5"); return -EINVAL; + } } } @@@ -883,8 -899,9 +899,9 @@@ static struct cfg80211_cached_keys * nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, - struct nlattr *keys, bool *no_ht) + struct genl_info *info, bool *no_ht) { + struct nlattr *keys = info->attrs[NL80211_ATTR_KEYS]; struct key_parse parse; struct nlattr *key; struct cfg80211_cached_keys *result; @@@ -909,17 -926,22 +926,22 @@@ memset(&parse, 0, sizeof(parse)); parse.idx = -1; - err = nl80211_parse_key_new(key, &parse); + err = nl80211_parse_key_new(info, key, &parse); if (err) goto error; err = -EINVAL; if (!parse.p.key) goto error; - if (parse.idx < 0 || parse.idx > 3) + if (parse.idx < 0 || parse.idx > 3) { + GENL_SET_ERR_MSG(info, "key index out of range [0-3]"); goto error; + } if (parse.def) { - if (def) + if (def) { + GENL_SET_ERR_MSG(info, + "only one key can be default"); goto error; + } def = 1; result->def = parse.idx; if (!parse.def_uni || !parse.def_multi) @@@ -932,6 -954,7 +954,7 @@@ goto error; if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 && parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) { + GENL_SET_ERR_MSG(info, "connect key must be WEP"); err = -EINVAL; goto error; } @@@ -947,6 -970,7 +970,7 @@@ if (result->def < 0) { err = -EINVAL; + GENL_SET_ERR_MSG(info, "need a default/TX key"); goto error; } @@@ -7817,6 -7841,11 +7841,11 @@@ static int nl80211_send_bss(struct sk_b intbss->ts_boottime, NL80211_BSS_PAD)) goto nla_put_failure; + if (!nl80211_put_signal(msg, intbss->pub.chains, + intbss->pub.chain_signal, + NL80211_BSS_CHAIN_SIGNAL)) + goto nla_put_failure; + switch (rdev->wiphy.signal_type) { case CFG80211_SIGNAL_TYPE_MBM: if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) @@@ -8613,9 -8642,7 +8642,7 @@@ static int nl80211_join_ibss(struct sk_ if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { bool no_ht = false; - connkeys = nl80211_parse_connkeys(rdev, - info->attrs[NL80211_ATTR_KEYS], - &no_ht); + connkeys = nl80211_parse_connkeys(rdev, info, &no_ht); if (IS_ERR(connkeys)) return PTR_ERR(connkeys); @@@ -9019,8 -9046,7 +9046,7 @@@ static int nl80211_connect(struct sk_bu } if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { - connkeys = nl80211_parse_connkeys(rdev, - info->attrs[NL80211_ATTR_KEYS], NULL); + connkeys = nl80211_parse_connkeys(rdev, info, NULL); if (IS_ERR(connkeys)) return PTR_ERR(connkeys); } @@@ -11361,8 -11387,7 +11387,8 @@@ static int nl80211_nan_add_func(struct break; case NL80211_NAN_FUNC_FOLLOW_UP: if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] || - !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]) { + !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] || + !tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) { err = -EINVAL; goto out; } @@@ -13945,7 -13970,7 +13971,7 @@@ void nl80211_send_disconnected(struct c if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || - (from_ap && reason && + (reason && nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || (from_ap && nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || diff --combined net/xfrm/xfrm_policy.c index 2ef6db98e9ba,d8a8129b9232..26f56e64654a --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@@ -54,7 -54,7 +54,7 @@@ static struct xfrm_policy_afinfo const static struct kmem_cache *xfrm_dst_cache __read_mostly; static __read_mostly seqcount_t xfrm_policy_hash_generation; - static void xfrm_init_pmtu(struct dst_entry *dst); + static void xfrm_init_pmtu(struct xfrm_dst **bundle, int nr); static int stale_bundle(struct dst_entry *dst); static int xfrm_bundle_ok(struct xfrm_dst *xdst); static void xfrm_policy_queue_process(struct timer_list *t); @@@ -609,8 -609,7 +609,8 @@@ static void xfrm_hash_rebuild(struct wo /* re-insert all policies by order of creation */ list_for_each_entry_reverse(policy, &net->xfrm.policy_all, walk.all) { - if (xfrm_policy_id2dir(policy->index) >= XFRM_POLICY_MAX) { + if (policy->walk.dead || + xfrm_policy_id2dir(policy->index) >= XFRM_POLICY_MAX) { /* skip socket policies */ continue; } @@@ -1258,7 -1257,7 +1258,7 @@@ EXPORT_SYMBOL(xfrm_policy_delete) int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol) { - struct net *net = xp_net(pol); + struct net *net = sock_net(sk); struct xfrm_policy *old_pol; #ifdef CONFIG_XFRM_SUB_POLICY @@@ -1545,7 -1544,9 +1545,9 @@@ static inline int xfrm_fill_dst(struct */ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy, - struct xfrm_state **xfrm, int nx, + struct xfrm_state **xfrm, + struct xfrm_dst **bundle, + int nx, const struct flowi *fl, struct dst_entry *dst) { @@@ -1553,8 -1554,8 +1555,8 @@@ unsigned long now = jiffies; struct net_device *dev; struct xfrm_mode *inner_mode; - struct dst_entry *dst_prev = NULL; - struct dst_entry *dst0 = NULL; + struct xfrm_dst *xdst_prev = NULL; + struct xfrm_dst *xdst0 = NULL; int i = 0; int err; int header_len = 0; @@@ -1580,13 -1581,14 +1582,14 @@@ goto put_states; } - if (!dst_prev) - dst0 = dst1; + bundle[i] = xdst; + if (!xdst_prev) + xdst0 = xdst; else /* Ref count is taken during xfrm_alloc_dst() * No need to do dst_clone() on dst1 */ - dst_prev->child = dst1; + xfrm_dst_set_child(xdst_prev, &xdst->u.dst); if (xfrm[i]->sel.family == AF_UNSPEC) { inner_mode = xfrm_ip2inner_mode(xfrm[i], @@@ -1623,8 -1625,7 +1626,7 @@@ dst1->input = dst_discard; dst1->output = inner_mode->afinfo->output; - dst1->next = dst_prev; - dst_prev = dst1; + xdst_prev = xdst; header_len += xfrm[i]->props.header_len; if (xfrm[i]->type->flags & XFRM_TYPE_NON_FRAGMENT) @@@ -1632,40 -1633,39 +1634,39 @@@ trailer_len += xfrm[i]->props.trailer_len; } - dst_prev->child = dst; - dst0->path = dst; + xfrm_dst_set_child(xdst_prev, dst); + xdst0->path = dst; err = -ENODEV; dev = dst->dev; if (!dev) goto free_dst; - xfrm_init_path((struct xfrm_dst *)dst0, dst, nfheader_len); - xfrm_init_pmtu(dst_prev); - - for (dst_prev = dst0; dst_prev != dst; dst_prev = dst_prev->child) { - struct xfrm_dst *xdst = (struct xfrm_dst *)dst_prev; + xfrm_init_path(xdst0, dst, nfheader_len); + xfrm_init_pmtu(bundle, nx); - err = xfrm_fill_dst(xdst, dev, fl); + for (xdst_prev = xdst0; xdst_prev != (struct xfrm_dst *)dst; + xdst_prev = (struct xfrm_dst *) xfrm_dst_child(&xdst_prev->u.dst)) { + err = xfrm_fill_dst(xdst_prev, dev, fl); if (err) goto free_dst; - dst_prev->header_len = header_len; - dst_prev->trailer_len = trailer_len; - header_len -= xdst->u.dst.xfrm->props.header_len; - trailer_len -= xdst->u.dst.xfrm->props.trailer_len; + xdst_prev->u.dst.header_len = header_len; + xdst_prev->u.dst.trailer_len = trailer_len; + header_len -= xdst_prev->u.dst.xfrm->props.header_len; + trailer_len -= xdst_prev->u.dst.xfrm->props.trailer_len; } out: - return dst0; + return &xdst0->u.dst; put_states: for (; i < nx; i++) xfrm_state_put(xfrm[i]); free_dst: - if (dst0) - dst_release_immediate(dst0); - dst0 = ERR_PTR(err); + if (xdst0) + dst_release_immediate(&xdst0->u.dst); + xdst0 = ERR_PTR(err); goto out; } @@@ -1807,7 -1807,7 +1808,7 @@@ static bool xfrm_xdst_can_reuse(struct for (i = 0; i < num; i++) { if (!dst || dst->xfrm != xfrm[i]) return false; - dst = dst->child; + dst = xfrm_dst_child(dst); } return xfrm_bundle_ok(xdst); @@@ -1820,6 -1820,7 +1821,7 @@@ xfrm_resolve_and_create_bundle(struct x { struct net *net = xp_net(pols[0]); struct xfrm_state *xfrm[XFRM_MAX_DEPTH]; + struct xfrm_dst *bundle[XFRM_MAX_DEPTH]; struct xfrm_dst *xdst, *old; struct dst_entry *dst; int err; @@@ -1848,7 -1849,7 +1850,7 @@@ old = xdst; - dst = xfrm_bundle_create(pols[0], xfrm, err, fl, dst_orig); + dst = xfrm_bundle_create(pols[0], xfrm, bundle, err, fl, dst_orig); if (IS_ERR(dst)) { XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTBUNDLEGENERROR); return ERR_CAST(dst); @@@ -1888,8 -1889,8 +1890,8 @@@ static void xfrm_policy_queue_process(s xfrm_decode_session(skb, &fl, dst->ops->family); spin_unlock(&pq->hold_queue.lock); - dst_hold(dst->path); - dst = xfrm_lookup(net, dst->path, &fl, sk, 0); + dst_hold(xfrm_dst_path(dst)); + dst = xfrm_lookup(net, xfrm_dst_path(dst), &fl, sk, 0); if (IS_ERR(dst)) goto purge_queue; @@@ -1918,8 -1919,8 +1920,8 @@@ skb = __skb_dequeue(&list); xfrm_decode_session(skb, &fl, skb_dst(skb)->ops->family); - dst_hold(skb_dst(skb)->path); - dst = xfrm_lookup(net, skb_dst(skb)->path, &fl, skb->sk, 0); + dst_hold(xfrm_dst_path(skb_dst(skb))); + dst = xfrm_lookup(net, xfrm_dst_path(skb_dst(skb)), &fl, skb->sk, 0); if (IS_ERR(dst)) { kfree_skb(skb); continue; @@@ -2020,8 -2021,8 +2022,8 @@@ static struct xfrm_dst *xfrm_create_dum dst1->output = xdst_queue_output; dst_hold(dst); - dst1->child = dst; - dst1->path = dst; + xfrm_dst_set_child(xdst, dst); + xdst->path = dst; xfrm_init_path((struct xfrm_dst *)dst1, dst, 0); @@@ -2584,7 -2585,7 +2586,7 @@@ static int stale_bundle(struct dst_entr void xfrm_dst_ifdown(struct dst_entry *dst, struct net_device *dev) { - while ((dst = dst->child) && dst->xfrm && dst->dev == dev) { + while ((dst = xfrm_dst_child(dst)) && dst->xfrm && dst->dev == dev) { dst->dev = dev_net(dev)->loopback_dev; dev_hold(dst->dev); dev_put(dev); @@@ -2608,13 -2609,15 +2610,15 @@@ static struct dst_entry *xfrm_negative_ return dst; } - static void xfrm_init_pmtu(struct dst_entry *dst) + static void xfrm_init_pmtu(struct xfrm_dst **bundle, int nr) { - do { - struct xfrm_dst *xdst = (struct xfrm_dst *)dst; + while (nr--) { + struct xfrm_dst *xdst = bundle[nr]; u32 pmtu, route_mtu_cached; + struct dst_entry *dst; - pmtu = dst_mtu(dst->child); + dst = &xdst->u.dst; + pmtu = dst_mtu(xfrm_dst_child(dst)); xdst->child_mtu_cached = pmtu; pmtu = xfrm_state_mtu(dst->xfrm, pmtu); @@@ -2626,7 -2629,7 +2630,7 @@@ pmtu = route_mtu_cached; dst_metric_set(dst, RTAX_MTU, pmtu); - } while ((dst = dst->next)); + } } /* Check that the bundle accepts the flow and its components are @@@ -2635,19 -2638,20 +2639,20 @@@ static int xfrm_bundle_ok(struct xfrm_dst *first) { + struct xfrm_dst *bundle[XFRM_MAX_DEPTH]; struct dst_entry *dst = &first->u.dst; - struct xfrm_dst *last; + struct xfrm_dst *xdst; + int start_from, nr; u32 mtu; - if (!dst_check(dst->path, ((struct xfrm_dst *)dst)->path_cookie) || + if (!dst_check(xfrm_dst_path(dst), ((struct xfrm_dst *)dst)->path_cookie) || (dst->dev && !netif_running(dst->dev))) return 0; if (dst->flags & DST_XFRM_QUEUE) return 1; - last = NULL; - + start_from = nr = 0; do { struct xfrm_dst *xdst = (struct xfrm_dst *)dst; @@@ -2659,9 -2663,11 +2664,11 @@@ xdst->policy_genid != atomic_read(&xdst->pols[0]->genid)) return 0; - mtu = dst_mtu(dst->child); + bundle[nr++] = xdst; + + mtu = dst_mtu(xfrm_dst_child(dst)); if (xdst->child_mtu_cached != mtu) { - last = xdst; + start_from = nr; xdst->child_mtu_cached = mtu; } @@@ -2669,30 -2675,30 +2676,30 @@@ return 0; mtu = dst_mtu(xdst->route); if (xdst->route_mtu_cached != mtu) { - last = xdst; + start_from = nr; xdst->route_mtu_cached = mtu; } - dst = dst->child; + dst = xfrm_dst_child(dst); } while (dst->xfrm); - if (likely(!last)) + if (likely(!start_from)) return 1; - mtu = last->child_mtu_cached; - for (;;) { - dst = &last->u.dst; + xdst = bundle[start_from - 1]; + mtu = xdst->child_mtu_cached; + while (start_from--) { + dst = &xdst->u.dst; mtu = xfrm_state_mtu(dst->xfrm, mtu); - if (mtu > last->route_mtu_cached) - mtu = last->route_mtu_cached; + if (mtu > xdst->route_mtu_cached) + mtu = xdst->route_mtu_cached; dst_metric_set(dst, RTAX_MTU, mtu); - - if (last == first) + if (!start_from) break; - last = (struct xfrm_dst *)last->u.dst.next; - last->child_mtu_cached = mtu; + xdst = bundle[start_from - 1]; + xdst->child_mtu_cached = mtu; } return 1; @@@ -2700,22 -2706,20 +2707,20 @@@ static unsigned int xfrm_default_advmss(const struct dst_entry *dst) { - return dst_metric_advmss(dst->path); + return dst_metric_advmss(xfrm_dst_path(dst)); } static unsigned int xfrm_mtu(const struct dst_entry *dst) { unsigned int mtu = dst_metric_raw(dst, RTAX_MTU); - return mtu ? : dst_mtu(dst->path); + return mtu ? : dst_mtu(xfrm_dst_path(dst)); } static const void *xfrm_get_dst_nexthop(const struct dst_entry *dst, const void *daddr) { - const struct dst_entry *path = dst->path; - - for (; dst != path; dst = dst->child) { + while (dst->xfrm) { const struct xfrm_state *xfrm = dst->xfrm; if (xfrm->props.mode == XFRM_MODE_TRANSPORT) @@@ -2724,6 -2728,8 +2729,8 @@@ daddr = xfrm->coaddr; else if (!(xfrm->type->flags & XFRM_TYPE_LOCAL_COADDR)) daddr = &xfrm->id.daddr; + + dst = xfrm_dst_child(dst); } return daddr; } @@@ -2732,7 -2738,7 +2739,7 @@@ static struct neighbour *xfrm_neigh_loo struct sk_buff *skb, const void *daddr) { - const struct dst_entry *path = dst->path; + const struct dst_entry *path = xfrm_dst_path(dst); if (!skb) daddr = xfrm_get_dst_nexthop(dst, daddr); @@@ -2741,7 -2747,7 +2748,7 @@@ static void xfrm_confirm_neigh(const struct dst_entry *dst, const void *daddr) { - const struct dst_entry *path = dst->path; + const struct dst_entry *path = xfrm_dst_path(dst); daddr = xfrm_get_dst_nexthop(dst, daddr); path->ops->confirm_neigh(path, daddr); diff --combined net/xfrm/xfrm_state.c index 429957412633,cc4c519cad76..20b1e414dbee --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@@ -313,14 -313,13 +313,14 @@@ retry if ((type && !try_module_get(type->owner))) type = NULL; + rcu_read_unlock(); + if (!type && try_load) { request_module("xfrm-offload-%d-%d", family, proto); try_load = 0; goto retry; } - rcu_read_unlock(); return type; } @@@ -1535,12 -1534,8 +1535,12 @@@ out err = -EINVAL; spin_lock_bh(&x1->lock); if (likely(x1->km.state == XFRM_STATE_VALID)) { - if (x->encap && x1->encap) + if (x->encap && x1->encap && + x->encap->encap_type == x1->encap->encap_type) memcpy(x1->encap, x->encap, sizeof(*x1->encap)); + else if (x->encap || x1->encap) + goto fail; + if (x->coaddr && x1->coaddr) { memcpy(x1->coaddr, x->coaddr, sizeof(*x1->coaddr)); } @@@ -1557,8 -1552,6 +1557,8 @@@ x->km.state = XFRM_STATE_DEAD; __xfrm_state_put(x); } + +fail: spin_unlock_bh(&x1->lock); xfrm_state_put(x1); @@@ -2056,6 -2049,13 +2056,13 @@@ int xfrm_user_policy(struct sock *sk, i struct xfrm_mgr *km; struct xfrm_policy *pol = NULL; + if (!optval && !optlen) { + xfrm_sk_policy_insert(sk, XFRM_POLICY_IN, NULL); + xfrm_sk_policy_insert(sk, XFRM_POLICY_OUT, NULL); + __sk_dst_reset(sk); + return 0; + } + if (optlen <= 0 || optlen > PAGE_SIZE) return -EMSGSIZE; -- LinuxNextTracking

1 0

[linux-next] LinuxNextTracking branch, master, updated. next-20180105
by batman＠open-mesh.org 05 Jan '18

05 Jan '18

The following commit has been merged in the master branch: commit b3ddd83a50ffbba2d37e5b252ee4f88e4a0ab8c4 Merge: 2e2c394f9a626eb654e7572393dbb81485d34b64 416d20e8c31107f5dfd45d1d80d1e6c8e4871180 Author: Stephen Rothwell <sfr(a)canb.auug.org.au> Date: Fri Jan 5 09:47:59 2018 +1100 Merge remote-tracking branch 'vfs/for-next' diff --combined arch/alpha/include/uapi/asm/Kbuild index 14a2e9af97e9,574fe90c8b58..9afaba5e5503 --- a/arch/alpha/include/uapi/asm/Kbuild +++ b/arch/alpha/include/uapi/asm/Kbuild @@@ -1,4 -1,4 +1,5 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h + generic-y += poll.h diff --combined arch/ia64/include/uapi/asm/Kbuild index f5c6967a93bb,4c9825edd4a3..c0527cfc48f0 --- a/arch/ia64/include/uapi/asm/Kbuild +++ b/arch/ia64/include/uapi/asm/Kbuild @@@ -1,5 -1,5 +1,6 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h generic-y += kvm_para.h + generic-y += poll.h diff --combined arch/m32r/include/uapi/asm/Kbuild index 451bf6071c6e,21f241553a2e..c3df55aeefe7 --- a/arch/m32r/include/uapi/asm/Kbuild +++ b/arch/m32r/include/uapi/asm/Kbuild @@@ -1,6 -1,6 +1,7 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h generic-y += kvm_para.h + generic-y += poll.h generic-y += siginfo.h diff --combined arch/mn10300/include/uapi/asm/Kbuild index 81271d3af47c,162fbdbb5fd5..b04fd1632051 --- a/arch/mn10300/include/uapi/asm/Kbuild +++ b/arch/mn10300/include/uapi/asm/Kbuild @@@ -1,5 -1,5 +1,6 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h + generic-y += poll.h generic-y += siginfo.h diff --combined arch/powerpc/kvm/book3s_xive.c index 0d750d274c4e,8f016ccf5424..6882bc94eba8 --- a/arch/powerpc/kvm/book3s_xive.c +++ b/arch/powerpc/kvm/book3s_xive.c @@@ -16,7 -16,7 +16,7 @@@ #include <linux/delay.h> #include <linux/percpu.h> #include <linux/cpumask.h> - #include <asm/uaccess.h> + #include <linux/uaccess.h> #include <asm/kvm_book3s.h> #include <asm/kvm_ppc.h> #include <asm/hvcall.h> @@@ -725,8 -725,7 +725,8 @@@ u64 kvmppc_xive_get_icp(struct kvm_vcp /* Return the per-cpu state for state saving/migration */ return (u64)xc->cppr << KVM_REG_PPC_ICP_CPPR_SHIFT | - (u64)xc->mfrr << KVM_REG_PPC_ICP_MFRR_SHIFT; + (u64)xc->mfrr << KVM_REG_PPC_ICP_MFRR_SHIFT | + (u64)0xff << KVM_REG_PPC_ICP_PPRI_SHIFT; } int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) @@@ -1559,7 -1558,7 +1559,7 @@@ static int xive_set_source(struct kvmpp /* * Restore P and Q. If the interrupt was pending, we - * force both P and Q, which will trigger a resend. + * force Q and !P, which will trigger a resend. * * That means that a guest that had both an interrupt * pending (queued) and Q set will restore with only @@@ -1567,7 -1566,7 +1567,7 @@@ * is perfectly fine as coalescing interrupts that haven't * been presented yet is always allowed. */ - if (val & KVM_XICS_PRESENTED || val & KVM_XICS_PENDING) + if (val & KVM_XICS_PRESENTED && !(val & KVM_XICS_PENDING)) state->old_p = true; if (val & KVM_XICS_QUEUED || val & KVM_XICS_PENDING) state->old_q = true; diff --combined arch/score/include/uapi/asm/Kbuild index 81271d3af47c,162fbdbb5fd5..b04fd1632051 --- a/arch/score/include/uapi/asm/Kbuild +++ b/arch/score/include/uapi/asm/Kbuild @@@ -1,5 -1,5 +1,6 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h + generic-y += poll.h generic-y += siginfo.h diff --combined arch/x86/include/uapi/asm/Kbuild index 1e901e421f2d,e9f6b8e332bd..322681622d1e --- a/arch/x86/include/uapi/asm/Kbuild +++ b/arch/x86/include/uapi/asm/Kbuild @@@ -1,7 -1,7 +1,8 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h generated-y += unistd_32.h generated-y += unistd_64.h generated-y += unistd_x32.h + generic-y += poll.h diff --combined crypto/af_alg.c index 35d4dcea381f,a00a8171b4f6..f41047ab60f5 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@@ -664,7 -664,7 +664,7 @@@ void af_alg_free_areq_sgls(struct af_al unsigned int i; list_for_each_entry_safe(rsgl, tmp, &areq->rsgl_list, list) { - ctx->rcvused -= rsgl->sg_num_bytes; + atomic_sub(rsgl->sg_num_bytes, &ctx->rcvused); af_alg_free_sg(&rsgl->sgl); list_del(&rsgl->list); if (rsgl != &areq->first_rsgl) @@@ -672,15 -672,14 +672,15 @@@ } tsgl = areq->tsgl; - for_each_sg(tsgl, sg, areq->tsgl_entries, i) { - if (!sg_page(sg)) - continue; - put_page(sg_page(sg)); - } + if (tsgl) { + for_each_sg(tsgl, sg, areq->tsgl_entries, i) { + if (!sg_page(sg)) + continue; + put_page(sg_page(sg)); + } - if (areq->tsgl && areq->tsgl_entries) sock_kfree_s(sk, tsgl, areq->tsgl_entries * sizeof(*tsgl)); + } } EXPORT_SYMBOL_GPL(af_alg_free_areq_sgls); @@@ -1022,18 -1021,6 +1022,18 @@@ unlock EXPORT_SYMBOL_GPL(af_alg_sendpage); /** + * af_alg_free_resources - release resources required for crypto request + */ +void af_alg_free_resources(struct af_alg_async_req *areq) +{ + struct sock *sk = areq->sk; + + af_alg_free_areq_sgls(areq); + sock_kfree_s(sk, areq, areq->areqlen); +} +EXPORT_SYMBOL_GPL(af_alg_free_resources); + +/** * af_alg_async_cb - AIO callback handler * * This handler cleans up the struct af_alg_async_req upon completion of the @@@ -1049,26 -1036,31 +1049,26 @@@ void af_alg_async_cb(struct crypto_asyn struct kiocb *iocb = areq->iocb; unsigned int resultlen; - lock_sock(sk); - /* Buffer size written by crypto operation. */ resultlen = areq->outlen; - af_alg_free_areq_sgls(areq); - sock_kfree_s(sk, areq, areq->areqlen); - __sock_put(sk); + af_alg_free_resources(areq); + sock_put(sk); iocb->ki_complete(iocb, err ? err : resultlen, 0); - - release_sock(sk); } EXPORT_SYMBOL_GPL(af_alg_async_cb); /** * af_alg_poll - poll system call handler */ - unsigned int af_alg_poll(struct file *file, struct socket *sock, + __poll_t af_alg_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct alg_sock *ask = alg_sk(sk); struct af_alg_ctx *ctx = ask->private; - unsigned int mask; + __poll_t mask; sock_poll_wait(file, sk_sleep(sk), wait); mask = 0; @@@ -1138,6 -1130,12 +1138,6 @@@ int af_alg_get_rsgl(struct sock *sk, st if (!af_alg_readable(sk)) break; - if (!ctx->used) { - err = af_alg_wait_for_data(sk, flags); - if (err) - return err; - } - seglen = min_t(size_t, (maxsize - len), msg_data_left(msg)); @@@ -1163,7 -1161,7 +1163,7 @@@ areq->last_rsgl = rsgl; len += err; - ctx->rcvused += err; + atomic_add(err, &ctx->rcvused); rsgl->sg_num_bytes = err; iov_iter_advance(&msg->msg_iter, err); } diff --combined crypto/algif_skcipher.c index c5c47b680152,c86207f267e2..f50907430c92 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@@ -72,12 -72,6 +72,12 @@@ static int _skcipher_recvmsg(struct soc int err = 0; size_t len = 0; + if (!ctx->used) { + err = af_alg_wait_for_data(sk, flags); + if (err) + return err; + } + /* Allocate cipher request for current operation. */ areq = af_alg_alloc_areq(sk, sizeof(struct af_alg_async_req) + crypto_skcipher_reqsize(tfm)); @@@ -123,24 -117,13 +123,24 @@@ if (msg->msg_iocb && !is_sync_kiocb(msg->msg_iocb)) { /* AIO operation */ + sock_hold(sk); areq->iocb = msg->msg_iocb; + + /* Remember output size that will be generated. */ + areq->outlen = len; + skcipher_request_set_callback(&areq->cra_u.skcipher_req, CRYPTO_TFM_REQ_MAY_SLEEP, af_alg_async_cb, areq); err = ctx->enc ? crypto_skcipher_encrypt(&areq->cra_u.skcipher_req) : crypto_skcipher_decrypt(&areq->cra_u.skcipher_req); + + /* AIO operation in progress */ + if (err == -EINPROGRESS || err == -EBUSY) + return -EIOCBQUEUED; + + sock_put(sk); } else { /* Synchronous operation */ skcipher_request_set_callback(&areq->cra_u.skcipher_req, @@@ -153,9 -136,19 +153,9 @@@ &ctx->wait); } - /* AIO operation in progress */ - if (err == -EINPROGRESS) { - sock_hold(sk); - - /* Remember output size that will be generated. */ - areq->outlen = len; - - return -EIOCBQUEUED; - } free: - af_alg_free_areq_sgls(areq); - sock_kfree_s(sk, areq, areq->areqlen); + af_alg_free_resources(areq); return err ? err : len; } @@@ -193,7 -186,6 +193,6 @@@ out return ret; } - static struct proto_ops algif_skcipher_ops = { .family = PF_ALG, @@@ -390,7 -382,7 +389,7 @@@ static int skcipher_accept_parent_nokey INIT_LIST_HEAD(&ctx->tsgl_list); ctx->len = len; ctx->used = 0; - ctx->rcvused = 0; + atomic_set(&ctx->rcvused, 0); ctx->more = 0; ctx->merge = 0; ctx->enc = 0; diff --combined drivers/android/binder.c index a7ecfde66b7b,fdc951083b07..cc89d0d2b965 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@@ -482,8 -482,7 +482,8 @@@ enum binder_deferred_state * @tsk task_struct for group_leader of process * (invariant after initialized) * @files files_struct for process - * (invariant after initialized) + * (protected by @files_lock) + * @files_lock mutex to protect @files * @deferred_work_node: element for binder_deferred_list * (protected by binder_deferred_lock) * @deferred_work: bitmap of deferred work to perform @@@ -531,7 -530,6 +531,7 @@@ struct binder_proc int pid; struct task_struct *tsk; struct files_struct *files; + struct mutex files_lock; struct hlist_node deferred_work_node; int deferred_work; bool is_dead; @@@ -879,26 -877,20 +879,26 @@@ static void binder_inc_node_tmpref_iloc static int task_get_unused_fd_flags(struct binder_proc *proc, int flags) { - struct files_struct *files = proc->files; unsigned long rlim_cur; unsigned long irqs; + int ret; - if (files == NULL) - return -ESRCH; - - if (!lock_task_sighand(proc->tsk, &irqs)) - return -EMFILE; - + mutex_lock(&proc->files_lock); + if (proc->files == NULL) { + ret = -ESRCH; + goto err; + } + if (!lock_task_sighand(proc->tsk, &irqs)) { + ret = -EMFILE; + goto err; + } rlim_cur = task_rlimit(proc->tsk, RLIMIT_NOFILE); unlock_task_sighand(proc->tsk, &irqs); - return __alloc_fd(files, 0, rlim_cur, flags); + ret = __alloc_fd(proc->files, 0, rlim_cur, flags); +err: + mutex_unlock(&proc->files_lock); + return ret; } /* @@@ -907,10 -899,8 +907,10 @@@ static void task_fd_install( struct binder_proc *proc, unsigned int fd, struct file *file) { + mutex_lock(&proc->files_lock); if (proc->files) __fd_install(proc->files, fd, file); + mutex_unlock(&proc->files_lock); } /* @@@ -920,11 -910,9 +920,11 @@@ static long task_close_fd(struct binder { int retval; - if (proc->files == NULL) - return -ESRCH; - + mutex_lock(&proc->files_lock); + if (proc->files == NULL) { + retval = -ESRCH; + goto err; + } retval = __close_fd(proc->files, fd); /* can't restart close syscall because file table entry was cleared */ if (unlikely(retval == -ERESTARTSYS || @@@ -932,8 -920,7 +932,8 @@@ retval == -ERESTARTNOHAND || retval == -ERESTART_RESTARTBLOCK)) retval = -EINTR; - +err: + mutex_unlock(&proc->files_lock); return retval; } @@@ -1961,26 -1948,6 +1961,26 @@@ static void binder_send_failed_reply(st } /** + * binder_cleanup_transaction() - cleans up undelivered transaction + * @t: transaction that needs to be cleaned up + * @reason: reason the transaction wasn't delivered + * @error_code: error to return to caller (if synchronous call) + */ +static void binder_cleanup_transaction(struct binder_transaction *t, + const char *reason, + uint32_t error_code) +{ + if (t->buffer->target_node && !(t->flags & TF_ONE_WAY)) { + binder_send_failed_reply(t, error_code); + } else { + binder_debug(BINDER_DEBUG_DEAD_TRANSACTION, + "undelivered transaction %d, %s\n", + t->debug_id, reason); + binder_free_transaction(t); + } +} + +/** * binder_validate_object() - checks for a valid metadata object in a buffer. * @buffer: binder_buffer that we're parsing. * @offset: offset in the buffer at which to validate an object. @@@ -4048,20 -4015,12 +4048,20 @@@ retry if (put_user(cmd, (uint32_t __user *)ptr)) { if (t_from) binder_thread_dec_tmpref(t_from); + + binder_cleanup_transaction(t, "put_user failed", + BR_FAILED_REPLY); + return -EFAULT; } ptr += sizeof(uint32_t); if (copy_to_user(ptr, &tr, sizeof(tr))) { if (t_from) binder_thread_dec_tmpref(t_from); + + binder_cleanup_transaction(t, "copy_to_user failed", + BR_FAILED_REPLY); + return -EFAULT; } ptr += sizeof(tr); @@@ -4131,9 -4090,15 +4131,9 @@@ static void binder_release_work(struct struct binder_transaction *t; t = container_of(w, struct binder_transaction, work); - if (t->buffer->target_node && - !(t->flags & TF_ONE_WAY)) { - binder_send_failed_reply(t, BR_DEAD_REPLY); - } else { - binder_debug(BINDER_DEBUG_DEAD_TRANSACTION, - "undelivered transaction %d\n", - t->debug_id); - binder_free_transaction(t); - } + + binder_cleanup_transaction(t, "process died.", + BR_DEAD_REPLY); } break; case BINDER_WORK_RETURN_ERROR: { struct binder_error *e = container_of( @@@ -4311,7 -4276,7 +4311,7 @@@ static int binder_thread_release(struc return active_transactions; } - static unsigned int binder_poll(struct file *filp, + static __poll_t binder_poll(struct file *filp, struct poll_table_struct *wait) { struct binder_proc *proc = filp->private_data; @@@ -4640,9 -4605,7 +4640,9 @@@ static int binder_mmap(struct file *fil ret = binder_alloc_mmap_handler(&proc->alloc, vma); if (ret) return ret; + mutex_lock(&proc->files_lock); proc->files = get_files_struct(current); + mutex_unlock(&proc->files_lock); return 0; err_bad_arg: @@@ -4666,7 -4629,6 +4666,7 @@@ static int binder_open(struct inode *no spin_lock_init(&proc->outer_lock); get_task_struct(current->group_leader); proc->tsk = current->group_leader; + mutex_init(&proc->files_lock); INIT_LIST_HEAD(&proc->todo); proc->default_priority = task_nice(current); binder_dev = container_of(filp->private_data, struct binder_device, @@@ -4919,11 -4881,9 +4919,11 @@@ static void binder_deferred_func(struc files = NULL; if (defer & BINDER_DEFERRED_PUT_FILES) { + mutex_lock(&proc->files_lock); files = proc->files; if (files) proc->files = NULL; + mutex_unlock(&proc->files_lock); } if (defer & BINDER_DEFERRED_FLUSH) diff --combined drivers/gpio/gpiolib.c index 44332b793718,46824c486e1e..a751fa4c722e --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@@ -73,8 -73,7 +73,8 @@@ LIST_HEAD(gpio_devices) static void gpiochip_free_hogs(struct gpio_chip *chip); static int gpiochip_add_irqchip(struct gpio_chip *gpiochip, - struct lock_class_key *key); + struct lock_class_key *lock_key, + struct lock_class_key *request_key); static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip); static int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gpiochip); static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gpiochip); @@@ -604,11 -603,11 +604,11 @@@ struct lineevent_state (GPIOEVENT_REQUEST_RISING_EDGE | \ GPIOEVENT_REQUEST_FALLING_EDGE) - static unsigned int lineevent_poll(struct file *filep, + static __poll_t lineevent_poll(struct file *filep, struct poll_table_struct *wait) { struct lineevent_state *le = filep->private_data; - unsigned int events = 0; + __poll_t events = 0; poll_wait(filep, &le->wait, wait); @@@ -1101,8 -1100,7 +1101,8 @@@ static void gpiochip_setup_devs(void } int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data, - struct lock_class_key *key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { unsigned long flags; int status = 0; @@@ -1248,7 -1246,7 +1248,7 @@@ if (status) goto err_remove_from_list; - status = gpiochip_add_irqchip(chip, key); + status = gpiochip_add_irqchip(chip, lock_key, request_key); if (status) goto err_remove_chip; @@@ -1634,7 -1632,7 +1634,7 @@@ int gpiochip_irq_map(struct irq_domain * This lock class tells lockdep that GPIO irqs are in a different * category than their parents, so it won't report false recursion. */ - irq_set_lockdep_class(irq, chip->irq.lock_key); + irq_set_lockdep_class(irq, chip->irq.lock_key, chip->irq.request_key); irq_set_chip_and_handler(irq, chip->irq.chip, chip->irq.handler); /* Chips that use nested thread handlers have them marked */ if (chip->irq.threaded) @@@ -1714,12 -1712,10 +1714,12 @@@ static int gpiochip_to_irq(struct gpio_ /** * gpiochip_add_irqchip() - adds an IRQ chip to a GPIO chip * @gpiochip: the GPIO chip to add the IRQ chip to - * @lock_key: lockdep class + * @lock_key: lockdep class for IRQ lock + * @request_key: lockdep class for IRQ request */ static int gpiochip_add_irqchip(struct gpio_chip *gpiochip, - struct lock_class_key *lock_key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { struct irq_chip *irqchip = gpiochip->irq.chip; const struct irq_domain_ops *ops; @@@ -1757,7 -1753,6 +1757,7 @@@ gpiochip->to_irq = gpiochip_to_irq; gpiochip->irq.default_type = type; gpiochip->irq.lock_key = lock_key; + gpiochip->irq.request_key = request_key; if (gpiochip->irq.domain_ops) ops = gpiochip->irq.domain_ops; @@@ -1855,8 -1850,7 +1855,8 @@@ static void gpiochip_irqchip_remove(str * @type: the default type for IRQs on this irqchip, pass IRQ_TYPE_NONE * to have the core avoid setting up any default type in the hardware. * @threaded: whether this irqchip uses a nested thread handler - * @lock_key: lockdep class + * @lock_key: lockdep class for IRQ lock + * @request_key: lockdep class for IRQ request * * This function closely associates a certain irqchip with a certain * gpiochip, providing an irq domain to translate the local IRQs to @@@ -1878,8 -1872,7 +1878,8 @@@ int gpiochip_irqchip_add_key(struct gpi irq_flow_handler_t handler, unsigned int type, bool threaded, - struct lock_class_key *lock_key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { struct device_node *of_node; @@@ -1920,7 -1913,6 +1920,7 @@@ gpiochip->irq.default_type = type; gpiochip->to_irq = gpiochip_to_irq; gpiochip->irq.lock_key = lock_key; + gpiochip->irq.request_key = request_key; gpiochip->irq.domain = irq_domain_add_simple(of_node, gpiochip->ngpio, first_irq, &gpiochip_domain_ops, gpiochip); @@@ -1948,8 -1940,7 +1948,8 @@@ EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_ #else /* CONFIG_GPIOLIB_IRQCHIP */ static inline int gpiochip_add_irqchip(struct gpio_chip *gpiochip, - struct lock_class_key *key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { return 0; } diff --combined drivers/md/md.c index 4e4dee0ec2de,e638d7199bd4..cb1476214f3f --- a/drivers/md/md.c +++ b/drivers/md/md.c @@@ -7605,9 -7605,7 +7605,9 @@@ static int status_resync(struct seq_fil if (test_bit(MD_RECOVERY_DONE, &mddev->recovery)) /* Still cleaning up */ resync = max_sectors; - } else + } else if (resync > max_sectors) + resync = max_sectors; + else resync -= atomic_read(&mddev->recovery_active); if (resync == 0) { @@@ -7871,10 -7869,10 +7871,10 @@@ static int md_seq_open(struct inode *in } static int md_unloading; - static unsigned int mdstat_poll(struct file *filp, poll_table *wait) + static __poll_t mdstat_poll(struct file *filp, poll_table *wait) { struct seq_file *seq = filp->private_data; - int mask; + __poll_t mask; if (md_unloading) return POLLIN|POLLRDNORM|POLLERR|POLLPRI; diff --combined drivers/media/dvb-core/dvb_ca_en50221.c index d48b61eb01f4,dbb527a2befc..3f6c8bd8f869 --- a/drivers/media/dvb-core/dvb_ca_en50221.c +++ b/drivers/media/dvb-core/dvb_ca_en50221.c @@@ -206,7 -206,7 +206,7 @@@ static int dvb_ca_en50221_write_data(st * @hlen: Number of bytes in haystack. * @needle: Buffer to find. * @nlen: Number of bytes in needle. - * @return Pointer into haystack needle was found at, or NULL if not found. + * return: Pointer into haystack needle was found at, or NULL if not found. */ static char *findstr(char *haystack, int hlen, char *needle, int nlen) { @@@ -226,7 -226,7 +226,7 @@@ /* ************************************************************************** */ /* EN50221 physical interface functions */ -/** +/* * dvb_ca_en50221_check_camstatus - Check CAM status. */ static int dvb_ca_en50221_check_camstatus(struct dvb_ca_private *ca, int slot) @@@ -275,9 -275,9 +275,9 @@@ * @ca: CA instance. * @slot: Slot on interface. * @waitfor: Flags to wait for. - * @timeout_ms: Timeout in milliseconds. + * @timeout_hz: Timeout in milliseconds. * - * @return 0 on success, nonzero on error. + * return: 0 on success, nonzero on error. */ static int dvb_ca_en50221_wait_if_status(struct dvb_ca_private *ca, int slot, u8 waitfor, int timeout_hz) @@@ -325,7 -325,7 +325,7 @@@ * @ca: CA instance. * @slot: Slot id. * - * @return 0 on success, nonzero on failure. + * return: 0 on success, nonzero on failure. */ static int dvb_ca_en50221_link_init(struct dvb_ca_private *ca, int slot) { @@@ -397,11 -397,11 +397,11 @@@ * @ca: CA instance. * @slot: Slot id. * @address: Address to read from. Updated. - * @tupleType: Tuple id byte. Updated. - * @tupleLength: Tuple length. Updated. + * @tuple_type: Tuple id byte. Updated. + * @tuple_length: Tuple length. Updated. * @tuple: Dest buffer for tuple (must be 256 bytes). Updated. * - * @return 0 on success, nonzero on error. + * return: 0 on success, nonzero on error. */ static int dvb_ca_en50221_read_tuple(struct dvb_ca_private *ca, int slot, int *address, int *tuple_type, @@@ -455,7 -455,7 +455,7 @@@ * @ca: CA instance. * @slot: Slot id. * - * @return 0 on success, <0 on failure. + * return: 0 on success, <0 on failure. */ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private *ca, int slot) { @@@ -632,11 -632,10 +632,11 @@@ static int dvb_ca_en50221_set_configopt * @ca: CA instance. * @slot: Slot to read from. * @ebuf: If non-NULL, the data will be written to this buffer. If NULL, - * the data will be added into the buffering system as a normal fragment. + * the data will be added into the buffering system as a normal + * fragment. * @ecount: Size of ebuf. Ignored if ebuf is NULL. * - * @return Number of bytes read, or < 0 on error + * return: Number of bytes read, or < 0 on error */ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot, u8 *ebuf, int ecount) @@@ -785,11 -784,11 +785,11 @@@ exit * * @ca: CA instance. * @slot: Slot to write to. - * @ebuf: The data in this buffer is treated as a complete link-level packet to - * be written. - * @count: Size of ebuf. + * @buf: The data in this buffer is treated as a complete link-level packet to + * be written. + * @bytes_write: Size of ebuf. * - * @return Number of bytes written, or < 0 on error. + * return: Number of bytes written, or < 0 on error. */ static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot, u8 *buf, int bytes_write) @@@ -934,7 -933,7 +934,7 @@@ static int dvb_ca_en50221_slot_shutdown /** * dvb_ca_en50221_camchange_irq - A CAMCHANGE IRQ has occurred. * - * @ca: CA instance. + * @pubca: CA instance. * @slot: Slot concerned. * @change_type: One of the DVB_CA_CAMCHANGE_* values. */ @@@ -964,7 -963,7 +964,7 @@@ EXPORT_SYMBOL(dvb_ca_en50221_camchange_ /** * dvb_ca_en50221_camready_irq - A CAMREADY IRQ has occurred. * - * @ca: CA instance. + * @pubca: CA instance. * @slot: Slot concerned. */ void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221 *pubca, int slot) @@@ -984,7 -983,7 +984,7 @@@ EXPORT_SYMBOL(dvb_ca_en50221_camready_i /** * dvb_ca_en50221_frda_irq - An FR or DA IRQ has occurred. * - * @ca: CA instance. + * @pubca: CA instance. * @slot: Slot concerned. */ void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221 *pubca, int slot) @@@ -1092,7 -1091,7 +1092,7 @@@ static void dvb_ca_en50221_thread_updat * * @ca: CA instance. * @slot: Slot to process. - * @return: 0 .. no change + * return:: 0 .. no change * 1 .. CAM state changed */ @@@ -1297,7 -1296,7 +1297,7 @@@ static void dvb_ca_en50221_thread_state mutex_unlock(&sl->slot_lock); } -/** +/* * Kernel thread which monitors CA slots for CAM changes, and performs data * transfers. */ @@@ -1337,11 -1336,12 +1337,11 @@@ static int dvb_ca_en50221_thread(void * * Real ioctl implementation. * NOTE: CA_SEND_MSG/CA_GET_MSG ioctls have userspace buffers passed to them. * - * @inode: Inode concerned. * @file: File concerned. * @cmd: IOCTL command. - * @arg: Associated argument. + * @parg: Associated argument. * - * @return 0 on success, <0 on error. + * return: 0 on success, <0 on error. */ static int dvb_ca_en50221_io_do_ioctl(struct file *file, unsigned int cmd, void *parg) @@@ -1420,11 -1420,12 +1420,11 @@@ out_unlock /** * Wrapper for ioctl implementation. * - * @inode: Inode concerned. * @file: File concerned. * @cmd: IOCTL command. * @arg: Associated argument. * - * @return 0 on success, <0 on error. + * return: 0 on success, <0 on error. */ static long dvb_ca_en50221_io_ioctl(struct file *file, unsigned int cmd, unsigned long arg) @@@ -1440,7 -1441,7 +1440,7 @@@ * @count: Size of source buffer. * @ppos: Position in file (ignored). * - * @return Number of bytes read, or <0 on error. + * return: Number of bytes read, or <0 on error. */ static ssize_t dvb_ca_en50221_io_write(struct file *file, const char __user *buf, size_t count, @@@ -1535,7 -1536,7 +1535,7 @@@ exit return status; } -/** +/* * Condition for waking up in dvb_ca_en50221_io_read_condition */ static int dvb_ca_en50221_io_read_condition(struct dvb_ca_private *ca, @@@ -1592,7 -1593,7 +1592,7 @@@ nextslot * @count: Size of destination buffer. * @ppos: Position in file (ignored). * - * @return Number of bytes read, or <0 on error. + * return: Number of bytes read, or <0 on error. */ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) @@@ -1701,7 -1702,7 +1701,7 @@@ exit * @inode: Inode concerned. * @file: File concerned. * - * @return 0 on success, <0 on failure. + * return: 0 on success, <0 on failure. */ static int dvb_ca_en50221_io_open(struct inode *inode, struct file *file) { @@@ -1751,7 -1752,7 +1751,7 @@@ * @inode: Inode concerned. * @file: File concerned. * - * @return 0 on success, <0 on failure. + * return: 0 on success, <0 on failure. */ static int dvb_ca_en50221_io_release(struct inode *inode, struct file *file) { @@@ -1780,13 -1781,13 +1780,13 @@@ * @file: File concerned. * @wait: poll wait table. * - * @return Standard poll mask. + * return: Standard poll mask. */ - static unsigned int dvb_ca_en50221_io_poll(struct file *file, poll_table *wait) + static __poll_t dvb_ca_en50221_io_poll(struct file *file, poll_table *wait) { struct dvb_device *dvbdev = file->private_data; struct dvb_ca_private *ca = dvbdev->priv; - unsigned int mask = 0; + __poll_t mask = 0; int slot; int result = 0; @@@ -1837,11 -1838,11 +1837,11 @@@ static const struct dvb_device dvbdev_c * Initialise a new DVB CA EN50221 interface device. * * @dvb_adapter: DVB adapter to attach the new CA device to. - * @ca: The dvb_ca instance. + * @pubca: The dvb_ca instance. * @flags: Flags describing the CA device (DVB_CA_FLAG_*). * @slot_count: Number of slots supported. * - * @return 0 on success, nonzero on failure + * return: 0 on success, nonzero on failure */ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, struct dvb_ca_en50221 *pubca, int flags, int slot_count) @@@ -1928,7 -1929,8 +1928,7 @@@ EXPORT_SYMBOL(dvb_ca_en50221_init) /** * Release a DVB CA EN50221 interface device. * - * @ca_dev: The dvb_device_t instance for the CA device. - * @ca: The associated dvb_ca instance. + * @pubca: The associated dvb_ca instance. */ void dvb_ca_en50221_release(struct dvb_ca_en50221 *pubca) { diff --combined drivers/media/dvb-core/dvb_frontend.c index 2afaa8226342,92e2433415f0..48e16fd003a7 --- a/drivers/media/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb-core/dvb_frontend.c @@@ -369,14 -369,11 +369,14 @@@ static void dvb_frontend_swzigzag_updat } /** - * Performs automatic twiddling of frontend parameters. + * dvb_frontend_swzigzag_autotune - Performs automatic twiddling of frontend + * parameters. * - * @param fe The frontend concerned. - * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT - * @returns Number of complete iterations that have been performed. + * @fe: The frontend concerned. + * @check_wrapped: Checks if an iteration has completed. + * DO NOT SET ON THE FIRST ATTEMPT. + * + * return: Number of complete iterations that have been performed. */ static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) { @@@ -1256,7 -1253,7 +1256,7 @@@ dtv_property_legacy_params_sync(struct * dtv_get_frontend - calls a callback for retrieving DTV parameters * @fe: struct dvb_frontend pointer * @c: struct dtv_frontend_properties pointer (DVBv5 cache) - * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) + * @p_out: struct dvb_frontend_parameters pointer (DVBv3 FE struct) * * This routine calls either the DVBv3 or DVBv5 get_frontend call. * If c is not null, it will update the DVBv5 cache struct pointed by it. @@@ -2470,7 -2467,7 +2470,7 @@@ static int dvb_frontend_handle_ioctl(st } - static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) + static __poll_t dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) { struct dvb_device *dvbdev = file->private_data; struct dvb_frontend *fe = dvbdev->priv; diff --combined drivers/media/platform/sh_veu.c index dedc1b024f6f,15cf51f5d280..976ea0bb5b6c --- a/drivers/media/platform/sh_veu.c +++ b/drivers/media/platform/sh_veu.c @@@ -267,7 -267,7 +267,7 @@@ static void sh_veu_process(struct sh_ve sh_veu_reg_write(veu, VEU_EIER, 1); /* enable interrupt in VEU */ } -/** +/* * sh_veu_device_run() - prepares and starts the device * * This will be called by the framework when it decides to schedule a particular @@@ -1016,7 -1016,7 +1016,7 @@@ static int sh_veu_release(struct file * return 0; } - static unsigned int sh_veu_poll(struct file *file, + static __poll_t sh_veu_poll(struct file *file, struct poll_table_struct *wait) { struct sh_veu_file *veu_file = file->private_data; diff --combined drivers/media/radio/radio-si476x.c index 540ac887a63c,248bd0ffc978..49293dd707b9 --- a/drivers/media/radio/radio-si476x.c +++ b/drivers/media/radio/radio-si476x.c @@@ -158,7 -158,7 +158,7 @@@ enum si476x_ctrl_idx }; static struct v4l2_ctrl_config si476x_ctrls[] = { - /** + /* * SI476X during its station seeking(or tuning) process uses several * parameters to detrmine if "the station" is valid: * @@@ -197,7 -197,7 +197,7 @@@ .step = 2, }, - /** + /* * #V4L2_CID_SI476X_HARMONICS_COUNT -- number of harmonics * built-in power-line noise supression filter is to reject * during AM-mode operation. @@@ -213,7 -213,7 +213,7 @@@ .step = 1, }, - /** + /* * #V4L2_CID_SI476X_DIVERSITY_MODE -- configuration which * two tuners working in diversity mode are to work in. * @@@ -237,7 -237,7 +237,7 @@@ .max = ARRAY_SIZE(phase_diversity_modes) - 1, }, - /** + /* * #V4L2_CID_SI476X_INTERCHIP_LINK -- inter-chip link in * diversity mode indicator. Allows user to determine if two * chips working in diversity mode have established a link @@@ -296,15 -296,11 +296,15 @@@ struct si476x_radio_ops /** * struct si476x_radio - radio device * - * @core: Pointer to underlying core device + * @v4l2dev: Pointer to V4L2 device created by V4L2 subsystem * @videodev: Pointer to video device created by V4L2 subsystem + * @ctrl_handler: V4L2 controls handler + * @core: Pointer to underlying core device * @ops: Vtable of functions. See struct si476x_radio_ops for details - * @kref: Reference counter - * @core_lock: An r/w semaphore to brebvent the deletion of underlying + * @debugfs: pointer to &strucd dentry for debugfs + * @audmode: audio mode, as defined for the rxsubchans field + * at videodev2.h + * * core structure is the radio device is being used */ struct si476x_radio { @@@ -1153,12 -1149,12 +1153,12 @@@ static ssize_t si476x_radio_fops_read(s return rval; } - static unsigned int si476x_radio_fops_poll(struct file *file, + static __poll_t si476x_radio_fops_poll(struct file *file, struct poll_table_struct *pts) { struct si476x_radio *radio = video_drvdata(file); - unsigned long req_events = poll_requested_events(pts); - unsigned int err = v4l2_ctrl_poll(file, pts); + __poll_t req_events = poll_requested_events(pts); + __poll_t err = v4l2_ctrl_poll(file, pts); if (req_events & (POLLIN | POLLRDNORM)) { if (atomic_read(&radio->core->is_alive)) diff --combined drivers/media/radio/radio-wl1273.c index 3cbdc085c65d,4cd4241fc7be..f92b0f9241a9 --- a/drivers/media/radio/radio-wl1273.c +++ b/drivers/media/radio/radio-wl1273.c @@@ -1089,7 -1089,7 +1089,7 @@@ out return r; } - static unsigned int wl1273_fm_fops_poll(struct file *file, + static __poll_t wl1273_fm_fops_poll(struct file *file, struct poll_table_struct *pts) { struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); @@@ -1330,7 -1330,7 +1330,7 @@@ static int wl1273_fm_vidioc_s_input(str /** * wl1273_fm_set_tx_power() - Set the transmission power value. - * @core: A pointer to the device struct. + * @radio: A pointer to the device struct. * @power: The new power value. */ static int wl1273_fm_set_tx_power(struct wl1273_device *radio, u16 power) diff --combined drivers/media/v4l2-core/v4l2-mem2mem.c index bc580fbe18fa,a879d11866bd..186156f8952a --- a/drivers/media/v4l2-core/v4l2-mem2mem.c +++ b/drivers/media/v4l2-core/v4l2-mem2mem.c @@@ -183,7 -183,6 +183,7 @@@ EXPORT_SYMBOL(v4l2_m2m_get_curr_priv) /** * v4l2_m2m_try_run() - select next job to perform and run it if possible + * @m2m_dev: per-device context * * Get next transaction (if present) from the waiting jobs list and run it. */ @@@ -282,7 -281,6 +282,7 @@@ EXPORT_SYMBOL_GPL(v4l2_m2m_try_schedule /** * v4l2_m2m_cancel_job() - cancel pending jobs for the context + * @m2m_ctx: m2m context with jobs to be canceled * * In case of streamoff or release called on any context, * 1] If the context is currently running, then abort job will be called @@@ -500,14 -498,14 +500,14 @@@ int v4l2_m2m_streamoff(struct file *fil } EXPORT_SYMBOL_GPL(v4l2_m2m_streamoff); - unsigned int v4l2_m2m_poll(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, + __poll_t v4l2_m2m_poll(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, struct poll_table_struct *wait) { struct video_device *vfd = video_devdata(file); - unsigned long req_events = poll_requested_events(wait); + __poll_t req_events = poll_requested_events(wait); struct vb2_queue *src_q, *dst_q; struct vb2_buffer *src_vb = NULL, *dst_vb = NULL; - unsigned int rc = 0; + __poll_t rc = 0; unsigned long flags; if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { @@@ -794,11 -792,11 +794,11 @@@ int v4l2_m2m_fop_mmap(struct file *file } EXPORT_SYMBOL_GPL(v4l2_m2m_fop_mmap); - unsigned int v4l2_m2m_fop_poll(struct file *file, poll_table *wait) + __poll_t v4l2_m2m_fop_poll(struct file *file, poll_table *wait) { struct v4l2_fh *fh = file->private_data; struct v4l2_m2m_ctx *m2m_ctx = fh->m2m_ctx; - unsigned int ret; + __poll_t ret; if (m2m_ctx->q_lock) mutex_lock(m2m_ctx->q_lock); diff --combined drivers/media/v4l2-core/videobuf-core.c index e87fb13b22dc,0c5b12b8bb52..9a89d3ae170f --- a/drivers/media/v4l2-core/videobuf-core.c +++ b/drivers/media/v4l2-core/videobuf-core.c @@@ -222,7 -222,7 +222,7 @@@ int videobuf_queue_is_busy(struct video } EXPORT_SYMBOL_GPL(videobuf_queue_is_busy); -/** +/* * __videobuf_free() - free all the buffers and their control structures * * This function can only be called if streaming/reading is off, i.e. no buffers @@@ -1118,13 -1118,13 +1118,13 @@@ done } EXPORT_SYMBOL_GPL(videobuf_read_stream); - unsigned int videobuf_poll_stream(struct file *file, + __poll_t videobuf_poll_stream(struct file *file, struct videobuf_queue *q, poll_table *wait) { - unsigned long req_events = poll_requested_events(wait); + __poll_t req_events = poll_requested_events(wait); struct videobuf_buffer *buf = NULL; - unsigned int rc = 0; + __poll_t rc = 0; videobuf_queue_lock(q); if (q->streaming) { diff --combined drivers/media/v4l2-core/videobuf2-core.c index a8589d96ef72,dc1f683c3b71..0d9f772d6d03 --- a/drivers/media/v4l2-core/videobuf2-core.c +++ b/drivers/media/v4l2-core/videobuf2-core.c @@@ -188,7 -188,7 +188,7 @@@ module_param(debug, int, 0644) static void __vb2_queue_cancel(struct vb2_queue *q); static void __enqueue_in_driver(struct vb2_buffer *vb); -/** +/* * __vb2_buf_mem_alloc() - allocate video memory for the given buffer */ static int __vb2_buf_mem_alloc(struct vb2_buffer *vb) @@@ -229,7 -229,7 +229,7 @@@ free return ret; } -/** +/* * __vb2_buf_mem_free() - free memory of the given buffer */ static void __vb2_buf_mem_free(struct vb2_buffer *vb) @@@ -243,7 -243,7 +243,7 @@@ } } -/** +/* * __vb2_buf_userptr_put() - release userspace memory associated with * a USERPTR buffer */ @@@ -258,7 -258,7 +258,7 @@@ static void __vb2_buf_userptr_put(struc } } -/** +/* * __vb2_plane_dmabuf_put() - release memory associated with * a DMABUF shared plane */ @@@ -277,7 -277,7 +277,7 @@@ static void __vb2_plane_dmabuf_put(stru p->dbuf_mapped = 0; } -/** +/* * __vb2_buf_dmabuf_put() - release memory associated with * a DMABUF shared buffer */ @@@ -289,7 -289,7 +289,7 @@@ static void __vb2_buf_dmabuf_put(struc __vb2_plane_dmabuf_put(vb, &vb->planes[plane]); } -/** +/* * __setup_offsets() - setup unique offsets ("cookies") for every plane in * the buffer. */ @@@ -317,7 -317,7 +317,7 @@@ static void __setup_offsets(struct vb2_ } } -/** +/* * __vb2_queue_alloc() - allocate videobuf buffer structures and (for MMAP type) * video buffer memory for all buffers/planes on the queue and initializes the * queue @@@ -386,7 -386,7 +386,7 @@@ static int __vb2_queue_alloc(struct vb2 return buffer; } -/** +/* * __vb2_free_mem() - release all video buffer memory for a given queue */ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers) @@@ -410,7 -410,7 +410,7 @@@ } } -/** +/* * __vb2_queue_free() - free buffers at the end of the queue - video memory and * related information, if no buffers are left return the queue to an * uninitialized state. Might be called even if the queue has already been freed. @@@ -544,7 -544,7 +544,7 @@@ bool vb2_buffer_in_use(struct vb2_queu } EXPORT_SYMBOL(vb2_buffer_in_use); -/** +/* * __buffers_in_use() - return true if any buffers on the queue are in use and * the queue cannot be freed (by the means of REQBUFS(0)) call */ @@@ -564,7 -564,7 +564,7 @@@ void vb2_core_querybuf(struct vb2_queu } EXPORT_SYMBOL_GPL(vb2_core_querybuf); -/** +/* * __verify_userptr_ops() - verify that all memory operations required for * USERPTR queue type have been provided */ @@@ -577,7 -577,7 +577,7 @@@ static int __verify_userptr_ops(struct return 0; } -/** +/* * __verify_mmap_ops() - verify that all memory operations required for * MMAP queue type have been provided */ @@@ -590,7 -590,7 +590,7 @@@ static int __verify_mmap_ops(struct vb2 return 0; } -/** +/* * __verify_dmabuf_ops() - verify that all memory operations required for * DMABUF queue type have been provided */ @@@ -953,7 -953,7 +953,7 @@@ void vb2_discard_done(struct vb2_queue } EXPORT_SYMBOL_GPL(vb2_discard_done); -/** +/* * __prepare_mmap() - prepare an MMAP buffer */ static int __prepare_mmap(struct vb2_buffer *vb, const void *pb) @@@ -966,7 -966,7 +966,7 @@@ return ret ? ret : call_vb_qop(vb, buf_prepare, vb); } -/** +/* * __prepare_userptr() - prepare a USERPTR buffer */ static int __prepare_userptr(struct vb2_buffer *vb, const void *pb) @@@ -1082,7 -1082,7 +1082,7 @@@ err return ret; } -/** +/* * __prepare_dmabuf() - prepare a DMABUF buffer */ static int __prepare_dmabuf(struct vb2_buffer *vb, const void *pb) @@@ -1215,7 -1215,7 +1215,7 @@@ err return ret; } -/** +/* * __enqueue_in_driver() - enqueue a vb2_buffer in driver for processing */ static void __enqueue_in_driver(struct vb2_buffer *vb) @@@ -1298,7 -1298,7 +1298,7 @@@ int vb2_core_prepare_buf(struct vb2_que } EXPORT_SYMBOL_GPL(vb2_core_prepare_buf); -/** +/* * vb2_start_streaming() - Attempt to start streaming. * @q: videobuf2 queue * @@@ -1427,7 -1427,7 +1427,7 @@@ int vb2_core_qbuf(struct vb2_queue *q, } EXPORT_SYMBOL_GPL(vb2_core_qbuf); -/** +/* * __vb2_wait_for_done_vb() - wait for a buffer to become available * for dequeuing * @@@ -1502,7 -1502,7 +1502,7 @@@ static int __vb2_wait_for_done_vb(struc return 0; } -/** +/* * __vb2_get_done_vb() - get a buffer ready for dequeuing * * Will sleep if required for nonblocking == false. @@@ -1553,7 -1553,7 +1553,7 @@@ int vb2_wait_for_all_buffers(struct vb2 } EXPORT_SYMBOL_GPL(vb2_wait_for_all_buffers); -/** +/* * __vb2_dqbuf() - bring back the buffer to the DEQUEUED state */ static void __vb2_dqbuf(struct vb2_buffer *vb) @@@ -1625,7 -1625,7 +1625,7 @@@ int vb2_core_dqbuf(struct vb2_queue *q } EXPORT_SYMBOL_GPL(vb2_core_dqbuf); -/** +/* * __vb2_queue_cancel() - cancel and stop (pause) streaming * * Removes all queued buffers from driver's queue and all buffers queued by @@@ -1773,7 -1773,7 +1773,7 @@@ int vb2_core_streamoff(struct vb2_queu } EXPORT_SYMBOL_GPL(vb2_core_streamoff); -/** +/* * __find_plane_by_offset() - find plane associated with the given offset off */ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off, @@@ -2018,10 -2018,10 +2018,10 @@@ void vb2_core_queue_release(struct vb2_ } EXPORT_SYMBOL_GPL(vb2_core_queue_release); - unsigned int vb2_core_poll(struct vb2_queue *q, struct file *file, + __poll_t vb2_core_poll(struct vb2_queue *q, struct file *file, poll_table *wait) { - unsigned long req_events = poll_requested_events(wait); + __poll_t req_events = poll_requested_events(wait); struct vb2_buffer *vb = NULL; unsigned long flags; @@@ -2104,7 -2104,7 +2104,7 @@@ } EXPORT_SYMBOL_GPL(vb2_core_poll); -/** +/* * struct vb2_fileio_buf - buffer context used by file io emulator * * vb2 provides a compatibility layer and emulator of file io (read and @@@ -2118,7 -2118,7 +2118,7 @@@ struct vb2_fileio_buf unsigned int queued:1; }; -/** +/* * struct vb2_fileio_data - queue context used by file io emulator * * @cur_index: the index of the buffer currently being read from or @@@ -2155,7 -2155,7 +2155,7 @@@ struct vb2_fileio_data unsigned write_immediately:1; }; -/** +/* * __vb2_init_fileio() - initialize file io emulator * @q: videobuf2 queue * @read: mode selector (1 means read, 0 means write) @@@ -2274,7 -2274,7 +2274,7 @@@ err_kfree return ret; } -/** +/* * __vb2_cleanup_fileio() - free resourced used by file io emulator * @q: videobuf2 queue */ @@@ -2293,7 -2293,7 +2293,7 @@@ static int __vb2_cleanup_fileio(struct return 0; } -/** +/* * __vb2_perform_fileio() - perform a single file io (read or write) operation * @q: videobuf2 queue * @data: pointed to target userspace buffer diff --combined drivers/media/v4l2-core/videobuf2-v4l2.c index 4075314a6989,d2b3a74d14fd..a49f7eb98c2e --- a/drivers/media/v4l2-core/videobuf2-v4l2.c +++ b/drivers/media/v4l2-core/videobuf2-v4l2.c @@@ -49,7 -49,7 +49,7 @@@ module_param(debug, int, 0644) #define V4L2_BUFFER_OUT_FLAGS (V4L2_BUF_FLAG_PFRAME | V4L2_BUF_FLAG_BFRAME | \ V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_TIMECODE) -/** +/* * __verify_planes_array() - verify that the planes array passed in struct * v4l2_buffer from userspace can be safely used */ @@@ -78,7 -78,7 +78,7 @@@ static int __verify_planes_array_core(s return __verify_planes_array(vb, pb); } -/** +/* * __verify_length() - Verify that the bytesused value for each plane fits in * the plane length and that the data offset doesn't exceed the bytesused value. */ @@@ -181,7 -181,7 +181,7 @@@ static int vb2_queue_or_prepare_buf(str return __verify_planes_array(q->bufs[b->index], b); } -/** +/* * __fill_v4l2_buffer() - fill in a struct v4l2_buffer with information to be * returned to userspace */ @@@ -286,7 -286,7 +286,7 @@@ static void __fill_v4l2_buffer(struct v q->last_buffer_dequeued = true; } -/** +/* * __fill_vb2_buffer() - fill a vb2_buffer with information provided in a * v4l2_buffer by the userspace. It also verifies that struct * v4l2_buffer has a valid number of planes. @@@ -446,7 -446,7 +446,7 @@@ static const struct vb2_buf_ops v4l2_bu .copy_timestamp = __copy_timestamp, }; -/** +/* * vb2_querybuf() - query video buffer information * @q: videobuf queue * @b: buffer struct passed from userspace to vidioc_querybuf handler @@@ -671,11 -671,11 +671,11 @@@ void vb2_queue_release(struct vb2_queu } EXPORT_SYMBOL_GPL(vb2_queue_release); - unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait) + __poll_t vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait) { struct video_device *vfd = video_devdata(file); - unsigned long req_events = poll_requested_events(wait); - unsigned int res = 0; + __poll_t req_events = poll_requested_events(wait); + __poll_t res = 0; if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { struct v4l2_fh *fh = file->private_data; @@@ -904,12 -904,12 +904,12 @@@ exit } EXPORT_SYMBOL_GPL(vb2_fop_read); - unsigned int vb2_fop_poll(struct file *file, poll_table *wait) + __poll_t vb2_fop_poll(struct file *file, poll_table *wait) { struct video_device *vdev = video_devdata(file); struct vb2_queue *q = vdev->queue; struct mutex *lock = q->lock ? q->lock : vdev->lock; - unsigned res; + __poll_t res; void *fileio; /* diff --combined drivers/net/ethernet/broadcom/tg3.c index 8995cfefbfcf,5bd4a65a45dd..86ff8b49ee57 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@@ -4,13 -4,11 +4,13 @@@ * Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem(a)redhat.com) * Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik(a)pobox.com) * Copyright (C) 2004 Sun Microsystems Inc. - * Copyright (C) 2005-2014 Broadcom Corporation. + * Copyright (C) 2005-2016 Broadcom Corporation. + * Copyright (C) 2016-2017 Broadcom Limited. * * Firmware is: * Derived from proprietary unpublished source code, - * Copyright (C) 2000-2003 Broadcom Corporation. + * Copyright (C) 2000-2016 Broadcom Corporation. + * Copyright (C) 2016-2017 Broadcom Ltd. * * Permission is hereby granted for the distribution of this firmware * data in hexadecimal or equivalent format, provided this copyright @@@ -3744,7 -3742,7 +3744,7 @@@ static int tg3_load_firmware_cpu(struc } do { - u32 *fw_data = (u32 *)(fw_hdr + 1); + __be32 *fw_data = (__be32 *)(fw_hdr + 1); for (i = 0; i < tg3_fw_data_len(tp, fw_hdr); i++) write_op(tp, cpu_scratch_base + (be32_to_cpu(fw_hdr->base_addr) & 0xffff) + @@@ -10054,16 -10052,6 +10054,16 @@@ static int tg3_reset_hw(struct tg3 *tp tw32(GRC_MODE, tp->grc_mode | val); + /* On one of the AMD platform, MRRS is restricted to 4000 because of + * south bridge limitation. As a workaround, Driver is setting MRRS + * to 2048 instead of default 4096. + */ + if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL && + tp->pdev->subsystem_device == TG3PCI_SUBDEVICE_ID_DELL_5762) { + val = tr32(TG3PCI_DEV_STATUS_CTRL) & ~MAX_READ_REQ_MASK; + tw32(TG3PCI_DEV_STATUS_CTRL, val | MAX_READ_REQ_SIZE_2048); + } + /* Setup the timer prescalar register. Clock is always 66Mhz. */ val = tr32(GRC_MISC_CFG); val &= ~0xff; @@@ -14237,10 -14225,7 +14237,10 @@@ static int tg3_change_mtu(struct net_de /* Reset PHY, otherwise the read DMA engine will be in a mode that * breaks all requests to 256 bytes. */ - if (tg3_asic_rev(tp) == ASIC_REV_57766) + if (tg3_asic_rev(tp) == ASIC_REV_57766 || + tg3_asic_rev(tp) == ASIC_REV_5717 || + tg3_asic_rev(tp) == ASIC_REV_5719 || + tg3_asic_rev(tp) == ASIC_REV_5720) reset_phy = true; err = tg3_restart_hw(tp, reset_phy); diff --combined drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c index 7e089bf906b4,5532a14de82b..5bbcaf8298f6 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c @@@ -241,12 -241,13 +241,13 @@@ static int dwmac4_rx_check_timestamp(vo u32 own, ctxt; int ret = 1; - own = p->des3 & RDES3_OWN; - ctxt = ((p->des3 & RDES3_CONTEXT_DESCRIPTOR) + own = le32_to_cpu(p->des3) & RDES3_OWN; + ctxt = ((le32_to_cpu(p->des3) & RDES3_CONTEXT_DESCRIPTOR) >> RDES3_CONTEXT_DESCRIPTOR_SHIFT); if (likely(!own && ctxt)) { - if ((p->des0 == 0xffffffff) && (p->des1 == 0xffffffff)) + if ((p->des0 == cpu_to_le32(0xffffffff)) && + (p->des1 == cpu_to_le32(0xffffffff))) /* Corrupted value */ ret = -EINVAL; else @@@ -258,20 -259,19 +259,20 @@@ return ret; } -static int dwmac4_wrback_get_rx_timestamp_status(void *desc, u32 ats) +static int dwmac4_wrback_get_rx_timestamp_status(void *desc, void *next_desc, + u32 ats) { struct dma_desc *p = (struct dma_desc *)desc; int ret = -EINVAL; /* Get the status from normal w/b descriptor */ - if (likely(p->des3 & TDES3_RS1V)) { + if (likely(p->des3 & cpu_to_le32(TDES3_RS1V))) { if (likely(le32_to_cpu(p->des1) & RDES1_TIMESTAMP_AVAILABLE)) { int i = 0; /* Check if timestamp is OK from context descriptor */ do { - ret = dwmac4_rx_check_timestamp(desc); + ret = dwmac4_rx_check_timestamp(next_desc); if (ret < 0) goto exit; i++; diff --combined drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index c0af0bc4e714,0a7ae94b5e00..323464576fc0 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@@ -364,15 -364,9 +364,15 @@@ static void stmmac_eee_ctrl_timer(struc bool stmmac_eee_init(struct stmmac_priv *priv) { struct net_device *ndev = priv->dev; + int interface = priv->plat->interface; unsigned long flags; bool ret = false; + if ((interface != PHY_INTERFACE_MODE_MII) && + (interface != PHY_INTERFACE_MODE_GMII) && + !phy_interface_mode_is_rgmii(interface)) + goto out; + /* Using PCS we cannot dial with the phy registers at this stage * so we do not support extra feature like EEE. */ @@@ -488,7 -482,7 +488,7 @@@ static void stmmac_get_rx_hwtstamp(stru desc = np; /* Check if timestamp is available */ - if (priv->hw->desc->get_rx_timestamp_status(desc, priv->adv_ts)) { + if (priv->hw->desc->get_rx_timestamp_status(p, np, priv->adv_ts)) { ns = priv->hw->desc->get_timestamp(desc, priv->adv_ts); netdev_dbg(priv->dev, "get valid RX hw timestamp %llu\n", ns); shhwtstamp = skb_hwtstamps(skb); @@@ -2539,7 -2533,7 +2539,7 @@@ static int stmmac_hw_setup(struct net_d } if (priv->hw->pcs && priv->hw->mac->pcs_ctrl_ane) - priv->hw->mac->pcs_ctrl_ane(priv->hw, 1, priv->hw->ps, 0); + priv->hw->mac->pcs_ctrl_ane(priv->ioaddr, 1, priv->hw->ps, 0); /* set TX and RX rings length */ stmmac_set_rings_length(priv); @@@ -2594,7 -2588,6 +2594,7 @@@ static int stmmac_open(struct net_devic priv->dma_buf_sz = STMMAC_ALIGN(buf_sz); priv->rx_copybreak = STMMAC_RX_COPYBREAK; + priv->mss = 0; ret = alloc_dma_desc_resources(priv); if (ret < 0) { diff --combined drivers/net/ethernet/via/via-rhine.c index 33949248c829,4a70091c16b7..f1fde0b7cda3 --- a/drivers/net/ethernet/via/via-rhine.c +++ b/drivers/net/ethernet/via/via-rhine.c @@@ -995,7 -995,7 +995,7 @@@ static int rhine_init_one_common(struc else name = "Rhine III"; - netdev_info(dev, "VIA %s at 0x%p, %pM, IRQ %d\n", + netdev_info(dev, "VIA %s at %p, %pM, IRQ %d\n", name, ioaddr, dev->dev_addr, rp->irq); dev_set_drvdata(hwdev, dev); @@@ -1150,7 -1150,7 +1150,7 @@@ static int rhine_init_one_platform(stru return -EINVAL; return rhine_init_one_common(&pdev->dev, *quirks, - (long)ioaddr, ioaddr, irq); + (unsigned long)ioaddr, ioaddr, irq); } static int alloc_ring(struct net_device* dev) diff --combined drivers/net/tap.c index 0a886fda0129,c4e91c73568e..f39c6f876e67 --- a/drivers/net/tap.c +++ b/drivers/net/tap.c @@@ -572,10 -572,10 +572,10 @@@ static int tap_release(struct inode *in return 0; } - static unsigned int tap_poll(struct file *file, poll_table *wait) + static __poll_t tap_poll(struct file *file, poll_table *wait) { struct tap_queue *q = file->private_data; - unsigned int mask = POLLERR; + __poll_t mask = POLLERR; if (!q) goto out; @@@ -829,11 -829,8 +829,11 @@@ static ssize_t tap_do_read(struct tap_q DEFINE_WAIT(wait); ssize_t ret = 0; - if (!iov_iter_count(to)) + if (!iov_iter_count(to)) { + if (skb) + kfree_skb(skb); return 0; + } if (skb) goto put; @@@ -1157,14 -1154,11 +1157,14 @@@ static int tap_recvmsg(struct socket *s size_t total_len, int flags) { struct tap_queue *q = container_of(sock, struct tap_queue, sock); + struct sk_buff *skb = m->msg_control; int ret; - if (flags & ~(MSG_DONTWAIT|MSG_TRUNC)) + if (flags & ~(MSG_DONTWAIT|MSG_TRUNC)) { + if (skb) + kfree_skb(skb); return -EINVAL; - ret = tap_do_read(q, &m->msg_iter, flags & MSG_DONTWAIT, - m->msg_control); + } + ret = tap_do_read(q, &m->msg_iter, flags & MSG_DONTWAIT, skb); if (ret > total_len) { m->msg_flags |= MSG_TRUNC; ret = flags & MSG_TRUNC ? ret : total_len; diff --combined drivers/net/tun.c index 4f4a842a1c9c,130b049ac3da..2ffe5dba7e09 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@@ -1248,12 -1248,12 +1248,12 @@@ static void tun_net_init(struct net_dev /* Character device part */ /* Poll */ - static unsigned int tun_chr_poll(struct file *file, poll_table *wait) + static __poll_t tun_chr_poll(struct file *file, poll_table *wait) { struct tun_file *tfile = file->private_data; struct tun_struct *tun = tun_get(tfile); struct sock *sk; - unsigned int mask = 0; + __poll_t mask = 0; if (!tun) return POLLERR; @@@ -1952,11 -1952,8 +1952,11 @@@ static ssize_t tun_do_read(struct tun_s tun_debug(KERN_INFO, tun, "tun_do_read\n"); - if (!iov_iter_count(to)) + if (!iov_iter_count(to)) { + if (skb) + kfree_skb(skb); return 0; + } if (!skb) { /* Read frames from ring */ @@@ -2072,24 -2069,22 +2072,24 @@@ static int tun_recvmsg(struct socket *s { struct tun_file *tfile = container_of(sock, struct tun_file, socket); struct tun_struct *tun = tun_get(tfile); + struct sk_buff *skb = m->msg_control; int ret; - if (!tun) - return -EBADFD; + if (!tun) { + ret = -EBADFD; + goto out_free_skb; + } if (flags & ~(MSG_DONTWAIT|MSG_TRUNC|MSG_ERRQUEUE)) { ret = -EINVAL; - goto out; + goto out_put_tun; } if (flags & MSG_ERRQUEUE) { ret = sock_recv_errqueue(sock->sk, m, total_len, SOL_PACKET, TUN_TX_TIMESTAMP); goto out; } - ret = tun_do_read(tun, tfile, &m->msg_iter, flags & MSG_DONTWAIT, - m->msg_control); + ret = tun_do_read(tun, tfile, &m->msg_iter, flags & MSG_DONTWAIT, skb); if (ret > (ssize_t)total_len) { m->msg_flags |= MSG_TRUNC; ret = flags & MSG_TRUNC ? ret : total_len; @@@ -2097,13 -2092,6 +2097,13 @@@ out: tun_put(tun); return ret; + +out_put_tun: + tun_put(tun); +out_free_skb: + if (skb) + kfree_skb(skb); + return ret; } static int tun_peek_len(struct socket *sock) diff --combined drivers/s390/char/monreader.c index bf4ab4efed73,de7b169004a2..956f662908a6 --- a/drivers/s390/char/monreader.c +++ b/drivers/s390/char/monreader.c @@@ -1,4 -1,3 +1,4 @@@ +// SPDX-License-Identifier: GPL-2.0 /* * Character device driver for reading z/VM *MONITOR service records. * @@@ -429,7 -428,7 +429,7 @@@ out_copy return count; } - static unsigned int mon_poll(struct file *filp, struct poll_table_struct *p) + static __poll_t mon_poll(struct file *filp, struct poll_table_struct *p) { struct mon_private *monpriv = filp->private_data; diff --combined drivers/staging/lustre/lnet/lnet/lib-socket.c index 7d49d4865298,984d76843b19..ed46aaca0ba3 --- a/drivers/staging/lustre/lnet/lnet/lib-socket.c +++ b/drivers/staging/lustre/lnet/lnet/lib-socket.c @@@ -71,12 -71,16 +71,12 @@@ lnet_sock_ioctl(int cmd, unsigned long } sock_filp = sock_alloc_file(sock, 0, NULL); - if (IS_ERR(sock_filp)) { - sock_release(sock); - rc = PTR_ERR(sock_filp); - goto out; - } + if (IS_ERR(sock_filp)) + return PTR_ERR(sock_filp); rc = kernel_sock_unlocked_ioctl(sock_filp, cmd, arg); fput(sock_filp); -out: return rc; } @@@ -314,19 -318,20 +314,20 @@@ lnet_sock_read(struct socket *sock, voi long jiffies_left = timeout * msecs_to_jiffies(MSEC_PER_SEC); unsigned long then; struct timeval tv; + struct kvec iov = { + .iov_base = buffer, + .iov_len = nob + }; + struct msghdr msg = { + .msg_flags = 0 + }; LASSERT(nob > 0); LASSERT(jiffies_left > 0); - for (;;) { - struct kvec iov = { - .iov_base = buffer, - .iov_len = nob - }; - struct msghdr msg = { - .msg_flags = 0 - }; + iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &iov, 1, nob); + for (;;) { /* Set receive timeout to remaining time */ jiffies_to_timeval(jiffies_left, &tv); rc = kernel_setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, @@@ -338,7 -343,7 +339,7 @@@ } then = jiffies; - rc = kernel_recvmsg(sock, &msg, &iov, 1, nob, 0); + rc = sock_recvmsg(sock, &msg, 0); jiffies_left -= jiffies - then; if (rc < 0) @@@ -347,10 -352,7 +348,7 @@@ if (!rc) return -ECONNRESET; - buffer = ((char *)buffer) + rc; - nob -= rc; - - if (!nob) + if (!msg_data_left(&msg)) return 0; if (jiffies_left <= 0) diff --combined drivers/tty/n_tty.c index 539b49adb6af,081bbbb7d49c..478a9b40fd03 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@@ -1762,7 -1762,7 +1762,7 @@@ static void n_tty_set_termios(struct tt { struct n_tty_data *ldata = tty->disc_data; - if (!old || (old->c_lflag ^ tty->termios.c_lflag) & ICANON) { + if (!old || (old->c_lflag ^ tty->termios.c_lflag) & (ICANON | EXTPROC)) { bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE); ldata->line_start = ldata->read_tail; if (!L_ICANON(tty) || !read_cnt(ldata)) { @@@ -2368,10 -2368,10 +2368,10 @@@ break_out * Called without the kernel lock held - fine */ - static unsigned int n_tty_poll(struct tty_struct *tty, struct file *file, + static __poll_t n_tty_poll(struct tty_struct *tty, struct file *file, poll_table *wait) { - unsigned int mask = 0; + __poll_t mask = 0; poll_wait(file, &tty->read_wait, wait); poll_wait(file, &tty->write_wait, wait); @@@ -2425,7 -2425,7 +2425,7 @@@ static int n_tty_ioctl(struct tty_struc return put_user(tty_chars_in_buffer(tty), (int __user *) arg); case TIOCINQ: down_write(&tty->termios_rwsem); - if (L_ICANON(tty)) + if (L_ICANON(tty) && !L_EXTPROC(tty)) retval = inq_canon(ldata); else retval = read_cnt(ldata); diff --combined drivers/usb/core/devio.c index a3fad4ec9870,929a7380be66..31404fc93d99 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@@ -1442,18 -1442,14 +1442,18 @@@ static int proc_do_submiturb(struct usb int number_of_packets = 0; unsigned int stream_id = 0; void *buf; - - if (uurb->flags & ~(USBDEVFS_URB_ISO_ASAP | - USBDEVFS_URB_SHORT_NOT_OK | + unsigned long mask = USBDEVFS_URB_SHORT_NOT_OK | USBDEVFS_URB_BULK_CONTINUATION | USBDEVFS_URB_NO_FSBR | USBDEVFS_URB_ZERO_PACKET | - USBDEVFS_URB_NO_INTERRUPT)) - return -EINVAL; + USBDEVFS_URB_NO_INTERRUPT; + /* USBDEVFS_URB_ISO_ASAP is a special case */ + if (uurb->type == USBDEVFS_URB_TYPE_ISO) + mask |= USBDEVFS_URB_ISO_ASAP; + + if (uurb->flags & ~mask) + return -EINVAL; + if ((unsigned int)uurb->buffer_length >= USBFS_XFER_MAX) return -EINVAL; if (uurb->buffer_length > 0 && !uurb->buffer) @@@ -2572,11 -2568,11 +2572,11 @@@ static long usbdev_compat_ioctl(struct #endif /* No kernel lock - fine */ - static unsigned int usbdev_poll(struct file *file, + static __poll_t usbdev_poll(struct file *file, struct poll_table_struct *wait) { struct usb_dev_state *ps = file->private_data; - unsigned int mask = 0; + __poll_t mask = 0; poll_wait(file, &ps->wait, wait); if (file->f_mode & FMODE_WRITE && !list_empty(&ps->async_completed)) diff --combined drivers/usb/gadget/function/f_fs.c index b6cf5ab5a0a1,17efadd6b395..b540935891af --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@@ -638,10 -638,10 +638,10 @@@ static long ffs_ep0_ioctl(struct file * return ret; } - static unsigned int ffs_ep0_poll(struct file *file, poll_table *wait) + static __poll_t ffs_ep0_poll(struct file *file, poll_table *wait) { struct ffs_data *ffs = file->private_data; - unsigned int mask = POLLWRNORM; + __poll_t mask = POLLWRNORM; int ret; poll_wait(file, &ffs->ev.waitq, wait); @@@ -1012,7 -1012,7 +1012,7 @@@ static ssize_t ffs_epfile_io(struct fil else ret = ep->status; goto error_mutex; - } else if (!(req = usb_ep_alloc_request(ep->ep, GFP_KERNEL))) { + } else if (!(req = usb_ep_alloc_request(ep->ep, GFP_ATOMIC))) { ret = -ENOMEM; } else { req->buf = data; @@@ -2282,18 -2282,9 +2282,18 @@@ static int __ffs_data_do_os_desc(enum f int i; if (len < sizeof(*d) || - d->bFirstInterfaceNumber >= ffs->interfaces_count || - !d->Reserved1) + d->bFirstInterfaceNumber >= ffs->interfaces_count) return -EINVAL; + if (d->Reserved1 != 1) { + /* + * According to the spec, Reserved1 must be set to 1 + * but older kernels incorrectly rejected non-zero + * values. We fix it here to avoid returning EINVAL + * in response to values we used to accept. + */ + pr_debug("usb_ext_compat_desc::Reserved1 forced to 1\n"); + d->Reserved1 = 1; + } for (i = 0; i < ARRAY_SIZE(d->Reserved2); ++i) if (d->Reserved2[i]) return -EINVAL; diff --combined drivers/vhost/net.c index c7bdeb655646,0ed445a17c54..9524ee16878a --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@@ -778,6 -778,16 +778,6 @@@ static void handle_rx(struct vhost_net /* On error, stop handling until the next kick. */ if (unlikely(headcount < 0)) goto out; - if (nvq->rx_array) - msg.msg_control = vhost_net_buf_consume(&nvq->rxq); - /* On overrun, truncate and discard */ - if (unlikely(headcount > UIO_MAXIOV)) { - iov_iter_init(&msg.msg_iter, READ, vq->iov, 1, 1); - err = sock->ops->recvmsg(sock, &msg, - 1, MSG_DONTWAIT | MSG_TRUNC); - pr_debug("Discarded rx packet: len %zd\n", sock_len); - continue; - } /* OK, now we need to know about added descriptors. */ if (!headcount) { if (unlikely(vhost_enable_notify(&net->dev, vq))) { @@@ -790,16 -800,6 +790,16 @@@ * they refilled. */ goto out; } + if (nvq->rx_array) + msg.msg_control = vhost_net_buf_consume(&nvq->rxq); + /* On overrun, truncate and discard */ + if (unlikely(headcount > UIO_MAXIOV)) { + iov_iter_init(&msg.msg_iter, READ, vq->iov, 1, 1); + err = sock->ops->recvmsg(sock, &msg, + 1, MSG_DONTWAIT | MSG_TRUNC); + pr_debug("Discarded rx packet: len %zd\n", sock_len); + continue; + } /* We don't need to be notified again. */ iov_iter_init(&msg.msg_iter, READ, vq->iov, in, vhost_len); fixup = msg.msg_iter; @@@ -1353,7 -1353,7 +1353,7 @@@ static ssize_t vhost_net_chr_write_iter return vhost_chr_write_iter(dev, from); } - static unsigned int vhost_net_chr_poll(struct file *file, poll_table *wait) + static __poll_t vhost_net_chr_poll(struct file *file, poll_table *wait) { struct vhost_net *n = file->private_data; struct vhost_dev *dev = &n->dev; diff --combined drivers/xen/pvcalls-front.c index d1e1d8d2b9d5,74c854955a6b..59fdd347561c --- a/drivers/xen/pvcalls-front.c +++ b/drivers/xen/pvcalls-front.c @@@ -878,7 -878,7 +878,7 @@@ received return ret; } - static unsigned int pvcalls_front_poll_passive(struct file *file, + static __poll_t pvcalls_front_poll_passive(struct file *file, struct pvcalls_bedata *bedata, struct sock_mapping *map, poll_table *wait) @@@ -935,12 -935,12 +935,12 @@@ return 0; } - static unsigned int pvcalls_front_poll_active(struct file *file, + static __poll_t pvcalls_front_poll_active(struct file *file, struct pvcalls_bedata *bedata, struct sock_mapping *map, poll_table *wait) { - unsigned int mask = 0; + __poll_t mask = 0; int32_t in_error, out_error; struct pvcalls_data_intf *intf = map->active.ring; @@@ -958,12 -958,12 +958,12 @@@ return mask; } - unsigned int pvcalls_front_poll(struct file *file, struct socket *sock, + __poll_t pvcalls_front_poll(struct file *file, struct socket *sock, poll_table *wait) { struct pvcalls_bedata *bedata; struct sock_mapping *map; - int ret; + __poll_t ret; pvcalls_enter(); if (!pvcalls_front_dev) { @@@ -1103,7 -1103,7 +1103,7 @@@ static int pvcalls_front_remove(struct kfree(map); } } - if (bedata->ref >= 0) + if (bedata->ref != -1) gnttab_end_foreign_access(bedata->ref, 0, 0); kfree(bedata->ring.sring); kfree(bedata); @@@ -1128,8 -1128,6 +1128,8 @@@ static int pvcalls_front_probe(struct x } versions = xenbus_read(XBT_NIL, dev->otherend, "versions", &len); + if (IS_ERR(versions)) + return PTR_ERR(versions); if (!len) return -EINVAL; if (strcmp(versions, "1")) { diff --combined fs/namei.c index 9cc91fb7f156,bc8f76fb5513..1c0fb97c9425 --- a/fs/namei.c +++ b/fs/namei.c @@@ -1129,9 -1129,18 +1129,9 @@@ static int follow_automount(struct pat * of the daemon to instantiate them before they can be used. */ if (!(nd->flags & (LOOKUP_PARENT | LOOKUP_DIRECTORY | - LOOKUP_OPEN | LOOKUP_CREATE | - LOOKUP_AUTOMOUNT))) { - /* Positive dentry that isn't meant to trigger an - * automount, EISDIR will allow it to be used, - * otherwise there's no mount here "now" so return - * ENOENT. - */ - if (path->dentry->d_inode) - return -EISDIR; - else - return -ENOENT; - } + LOOKUP_OPEN | LOOKUP_CREATE | LOOKUP_AUTOMOUNT)) && + path->dentry->d_inode) + return -EISDIR; if (path->dentry->d_sb->s_user_ns != &init_user_ns) return -EACCES; @@@ -2898,6 -2907,27 +2898,27 @@@ int vfs_create(struct inode *dir, struc } EXPORT_SYMBOL(vfs_create); + int vfs_mkobj(struct dentry *dentry, umode_t mode, + int (*f)(struct dentry *, umode_t, void *), + void *arg) + { + struct inode *dir = dentry->d_parent->d_inode; + int error = may_create(dir, dentry); + if (error) + return error; + + mode &= S_IALLUGO; + mode |= S_IFREG; + error = security_inode_create(dir, dentry, mode); + if (error) + return error; + error = f(dentry, mode, arg); + if (!error) + fsnotify_create(dir, dentry); + return error; + } + EXPORT_SYMBOL(vfs_mkobj); + bool may_open_dev(const struct path *path) { return !(path->mnt->mnt_flags & MNT_NODEV) && diff --combined fs/proc/inode.c index dd0f82622427,5e6f160d96a2..8dacaabb9f37 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@@ -234,11 -234,11 +234,11 @@@ static ssize_t proc_reg_write(struct fi return rv; } - static unsigned int proc_reg_poll(struct file *file, struct poll_table_struct *pts) + static __poll_t proc_reg_poll(struct file *file, struct poll_table_struct *pts) { struct proc_dir_entry *pde = PDE(file_inode(file)); - unsigned int rv = DEFAULT_POLLMASK; - unsigned int (*poll)(struct file *, struct poll_table_struct *); + __poll_t rv = DEFAULT_POLLMASK; + __poll_t (*poll)(struct file *, struct poll_table_struct *); if (use_pde(pde)) { poll = pde->proc_fops->poll; if (poll) @@@ -483,7 -483,7 +483,7 @@@ int proc_fill_super(struct super_block /* User space would break if executables or devices appear on proc */ s->s_iflags |= SB_I_USERNS_VISIBLE | SB_I_NOEXEC | SB_I_NODEV; - s->s_flags |= MS_NODIRATIME | MS_NOSUID | MS_NOEXEC; + s->s_flags |= SB_NODIRATIME | SB_NOSUID | SB_NOEXEC; s->s_blocksize = 1024; s->s_blocksize_bits = 10; s->s_magic = PROC_SUPER_MAGIC; diff --combined fs/proc_namespace.c index b786840facd9,7a3d0ff9b7a8..c8528d587e09 --- a/fs/proc_namespace.c +++ b/fs/proc_namespace.c @@@ -18,12 -18,12 +18,12 @@@ #include "pnode.h" #include "internal.h" - static unsigned mounts_poll(struct file *file, poll_table *wait) + static __poll_t mounts_poll(struct file *file, poll_table *wait) { struct seq_file *m = file->private_data; struct proc_mounts *p = m->private; struct mnt_namespace *ns = p->ns; - unsigned res = POLLIN | POLLRDNORM; + __poll_t res = POLLIN | POLLRDNORM; int event; poll_wait(file, &p->ns->poll, wait); @@@ -45,10 -45,10 +45,10 @@@ struct proc_fs_info static int show_sb_opts(struct seq_file *m, struct super_block *sb) { static const struct proc_fs_info fs_info[] = { - { MS_SYNCHRONOUS, ",sync" }, - { MS_DIRSYNC, ",dirsync" }, - { MS_MANDLOCK, ",mand" }, - { MS_LAZYTIME, ",lazytime" }, + { SB_SYNCHRONOUS, ",sync" }, + { SB_DIRSYNC, ",dirsync" }, + { SB_MANDLOCK, ",mand" }, + { SB_LAZYTIME, ",lazytime" }, { 0, NULL } }; const struct proc_fs_info *fs_infop; diff --combined include/crypto/if_alg.h index f38227a78eae,c670b30e405a..482461d8931d --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@@ -18,7 -18,6 +18,7 @@@ #include <linux/if_alg.h> #include <linux/scatterlist.h> #include <linux/types.h> +#include <linux/atomic.h> #include <net/sock.h> #include <crypto/aead.h> @@@ -151,7 -150,7 +151,7 @@@ struct af_alg_ctx struct crypto_wait wait; size_t used; - size_t rcvused; + atomic_t rcvused; bool more; bool merge; @@@ -216,7 -215,7 +216,7 @@@ static inline int af_alg_rcvbuf(struct struct af_alg_ctx *ctx = ask->private; return max_t(int, max_t(int, sk->sk_rcvbuf & PAGE_MASK, PAGE_SIZE) - - ctx->rcvused, 0); + atomic_read(&ctx->rcvused), 0); } /** @@@ -243,9 -242,8 +243,9 @@@ int af_alg_sendmsg(struct socket *sock unsigned int ivsize); ssize_t af_alg_sendpage(struct socket *sock, struct page *page, int offset, size_t size, int flags); +void af_alg_free_resources(struct af_alg_async_req *areq); void af_alg_async_cb(struct crypto_async_request *_req, int err); - unsigned int af_alg_poll(struct file *file, struct socket *sock, + __poll_t af_alg_poll(struct file *file, struct socket *sock, poll_table *wait); struct af_alg_async_req *af_alg_alloc_areq(struct sock *sk, unsigned int areqlen); diff --combined include/linux/fs.h index 0cd0a7dae99e,03f33d969f99..dccbe0fd38de --- a/include/linux/fs.h +++ b/include/linux/fs.h @@@ -1309,6 -1309,7 +1309,6 @@@ extern int send_sigurg(struct fown_stru #define UMOUNT_UNUSED 0x80000000 /* Flag guaranteed to be unused */ /* sb->s_iflags */ -#define SB_I_CGROUPWB 0x00000001 /* cgroup-aware writeback enabled */ #define SB_I_NOEXEC 0x00000002 /* Ignore executables on this fs */ #define SB_I_NODEV 0x00000004 /* Ignore devices on this fs */ @@@ -1358,7 -1359,7 +1358,7 @@@ struct super_block const struct fscrypt_operations *s_cop; - struct hlist_bl_head s_anon; /* anonymous dentries for (nfs) exporting */ + struct hlist_bl_head s_roots; /* alternate root dentries for NFS */ struct list_head s_mounts; /* list of mounts; _not_ for fs use */ struct block_device *s_bdev; struct backing_dev_info *s_bdi; @@@ -1607,6 -1608,10 +1607,10 @@@ extern int vfs_whiteout(struct inode * extern struct dentry *vfs_tmpfile(struct dentry *dentry, umode_t mode, int open_flag); + int vfs_mkobj(struct dentry *, umode_t, + int (*f)(struct dentry *, umode_t, void *), + void *); + /* * VFS file helper functions. */ @@@ -1697,7 -1702,7 +1701,7 @@@ struct file_operations ssize_t (*write_iter) (struct kiocb *, struct iov_iter *); int (*iterate) (struct file *, struct dir_context *); int (*iterate_shared) (struct file *, struct dir_context *); - unsigned int (*poll) (struct file *, struct poll_table_struct *); + __poll_t (*poll) (struct file *, struct poll_table_struct *); long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); long (*compat_ioctl) (struct file *, unsigned int, unsigned long); int (*mmap) (struct file *, struct vm_area_struct *); @@@ -1855,7 -1860,6 +1859,7 @@@ struct super_operations #define S_DAX 0 /* Make all the DAX code disappear */ #endif #define S_ENCRYPTED 16384 /* Encrypted file (using fs/crypto/) */ +#define S_CGROUPWB 32768 /* Enable cgroup writeback for this inode */ /* * Note that nosuid etc flags are inode-specific: setting some file-system @@@ -1872,7 -1876,7 +1876,7 @@@ */ #define __IS_FLG(inode, flg) ((inode)->i_sb->s_flags & (flg)) -static inline bool sb_rdonly(const struct super_block *sb) { return sb->s_flags & MS_RDONLY; } +static inline bool sb_rdonly(const struct super_block *sb) { return sb->s_flags & SB_RDONLY; } #define IS_RDONLY(inode) sb_rdonly((inode)->i_sb) #define IS_SYNC(inode) (__IS_FLG(inode, SB_SYNCHRONOUS) || \ ((inode)->i_flags & S_SYNC)) @@@ -1896,7 -1900,6 +1900,7 @@@ #define IS_NOSEC(inode) ((inode)->i_flags & S_NOSEC) #define IS_DAX(inode) ((inode)->i_flags & S_DAX) #define IS_ENCRYPTED(inode) ((inode)->i_flags & S_ENCRYPTED) +#define IS_CGROUPWB(inode) ((inode)->i_flags & S_CGROUPWB) #define IS_WHITEOUT(inode) (S_ISCHR(inode->i_mode) && \ (inode)->i_rdev == WHITEOUT_DEV) @@@ -3089,8 -3092,7 +3093,8 @@@ static inline int vfs_lstat(const char static inline int vfs_fstatat(int dfd, const char __user *filename, struct kstat *stat, int flags) { - return vfs_statx(dfd, filename, flags, stat, STATX_BASIC_STATS); + return vfs_statx(dfd, filename, flags | AT_NO_AUTOMOUNT, + stat, STATX_BASIC_STATS); } static inline int vfs_fstat(int fd, struct kstat *stat) { @@@ -3196,20 -3198,6 +3200,20 @@@ static inline bool vma_is_dax(struct vm return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host); } +static inline bool vma_is_fsdax(struct vm_area_struct *vma) +{ + struct inode *inode; + + if (!vma->vm_file) + return false; + if (!vma_is_dax(vma)) + return false; + inode = file_inode(vma->vm_file); + if (inode->i_mode == S_IFCHR) + return false; /* device-dax */ + return true; +} + static inline int iocb_flags(struct file *file) { int res = 0; diff --combined include/linux/skbuff.h index a38c80e9f91e,07564bb28c1f..a87e43d16f44 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@@ -1406,7 -1406,8 +1406,7 @@@ static inline struct sk_buff *skb_get(s } /* - * If users == 1, we are the only owner and are can avoid redundant - * atomic change. + * If users == 1, we are the only owner and can avoid redundant atomic changes. */ /** @@@ -3241,7 -3242,7 +3241,7 @@@ struct sk_buff *__skb_recv_datagram(str int *peeked, int *off, int *err); struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock, int *err); - unsigned int datagram_poll(struct file *file, struct socket *sock, + __poll_t datagram_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); int skb_copy_datagram_iter(const struct sk_buff *from, int offset, struct iov_iter *to, int size); diff --combined include/net/sctp/sctp.h index 906a9c0efa71,6b765de288d8..608d123ef25f --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@@ -107,7 -107,7 +107,7 @@@ int sctp_backlog_rcv(struct sock *sk, s int sctp_inet_listen(struct socket *sock, int backlog); void sctp_write_space(struct sock *sk); void sctp_data_ready(struct sock *sk); - unsigned int sctp_poll(struct file *file, struct socket *sock, + __poll_t sctp_poll(struct file *file, struct socket *sock, poll_table *wait); void sctp_sock_rfree(struct sk_buff *skb); void sctp_copy_sock(struct sock *newsk, struct sock *sk, @@@ -195,11 -195,6 +195,11 @@@ void sctp_remaddr_proc_exit(struct net int sctp_offload_init(void); /* + * sctp/stream_sched.c + */ +void sctp_sched_ops_init(void); + +/* * sctp/stream.c */ int sctp_send_reset_streams(struct sctp_association *asoc, diff --combined include/net/sock.h index 7a7b14e9628a,b33078333518..4fd74e0d1bbb --- a/include/net/sock.h +++ b/include/net/sock.h @@@ -685,7 -685,11 +685,7 @@@ static inline void sk_add_node_rcu(stru static inline void __sk_nulls_add_node_rcu(struct sock *sk, struct hlist_nulls_head *list) { - if (IS_ENABLED(CONFIG_IPV6) && sk->sk_reuseport && - sk->sk_family == AF_INET6) - hlist_nulls_add_tail_rcu(&sk->sk_nulls_node, list); - else - hlist_nulls_add_head_rcu(&sk->sk_nulls_node, list); + hlist_nulls_add_head_rcu(&sk->sk_nulls_node, list); } static inline void sk_nulls_add_node_rcu(struct sock *sk, struct hlist_nulls_head *list) @@@ -1514,11 -1518,6 +1514,11 @@@ static inline bool sock_owned_by_user(c return sk->sk_lock.owned; } +static inline bool sock_owned_by_user_nocheck(const struct sock *sk) +{ + return sk->sk_lock.owned; +} + /* no reclassification while locks are held */ static inline bool sock_allow_reclassification(const struct sock *csk) { @@@ -1583,7 -1582,7 +1583,7 @@@ int sock_no_connect(struct socket *, st int sock_no_socketpair(struct socket *, struct socket *); int sock_no_accept(struct socket *, struct socket *, int, bool); int sock_no_getname(struct socket *, struct sockaddr *, int *, int); - unsigned int sock_no_poll(struct file *, struct socket *, + __poll_t sock_no_poll(struct file *, struct socket *, struct poll_table_struct *); int sock_no_ioctl(struct socket *, unsigned int, unsigned long); int sock_no_listen(struct socket *, int); diff --combined include/net/tcp.h index 6da880d2f022,a6343271c629..50b21a49d870 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@@ -387,7 -387,7 +387,7 @@@ bool tcp_peer_is_proven(struct request_ void tcp_close(struct sock *sk, long timeout); void tcp_init_sock(struct sock *sk); void tcp_init_transfer(struct sock *sk, int bpf_op); - unsigned int tcp_poll(struct file *file, struct socket *sock, + __poll_t tcp_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); @@@ -844,11 -844,12 +844,11 @@@ static inline int tcp_v6_sdif(const str } #endif -/* TCP_SKB_CB reference means this can not be used from early demux */ static inline bool inet_exact_dif_match(struct net *net, struct sk_buff *skb) { #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) if (!net->ipv4.sysctl_tcp_l3mdev_accept && - skb && ipv4_l3mdev_skb(TCP_SKB_CB(skb)->header.h4.flags)) + skb && ipv4_l3mdev_skb(IPCB(skb)->flags)) return true; #endif return false; @@@ -1055,7 -1056,7 +1055,7 @@@ void tcp_rate_skb_sent(struct sock *sk void tcp_rate_skb_delivered(struct sock *sk, struct sk_buff *skb, struct rate_sample *rs); void tcp_rate_gen(struct sock *sk, u32 delivered, u32 lost, - struct rate_sample *rs); + bool is_sack_reneg, struct rate_sample *rs); void tcp_rate_check_app_limited(struct sock *sk); /* These functions determine how the current flow behaves in respect of SACK diff --combined ipc/mqueue.c index 9649ecd8a73a,0cc314a9af97..0d4fe665d638 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@@ -270,13 -270,30 +270,30 @@@ static struct inode *mqueue_get_inode(s * that means the min(mq_maxmsg, max_priorities) * struct * posix_msg_tree_node. */ + + ret = -EINVAL; + if (info->attr.mq_maxmsg <= 0 || info->attr.mq_msgsize <= 0) + goto out_inode; + if (capable(CAP_SYS_RESOURCE)) { + if (info->attr.mq_maxmsg > HARD_MSGMAX || + info->attr.mq_msgsize > HARD_MSGSIZEMAX) + goto out_inode; + } else { + if (info->attr.mq_maxmsg > ipc_ns->mq_msg_max || + info->attr.mq_msgsize > ipc_ns->mq_msgsize_max) + goto out_inode; + } + ret = -EOVERFLOW; + /* check for overflow */ + if (info->attr.mq_msgsize > ULONG_MAX/info->attr.mq_maxmsg) + goto out_inode; mq_treesize = info->attr.mq_maxmsg * sizeof(struct msg_msg) + min_t(unsigned int, info->attr.mq_maxmsg, MQ_PRIO_MAX) * sizeof(struct posix_msg_tree_node); - - mq_bytes = mq_treesize + (info->attr.mq_maxmsg * - info->attr.mq_msgsize); - + mq_bytes = info->attr.mq_maxmsg * info->attr.mq_msgsize; + if (mq_bytes + mq_treesize < mq_bytes) + goto out_inode; + mq_bytes += mq_treesize; spin_lock(&mq_lock); if (u->mq_bytes + mq_bytes < u->mq_bytes || u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) { @@@ -308,8 -325,9 +325,9 @@@ err static int mqueue_fill_super(struct super_block *sb, void *data, int silent) { struct inode *inode; - struct ipc_namespace *ns = sb->s_fs_info; + struct ipc_namespace *ns = data; + sb->s_fs_info = ns; sb->s_iflags |= SB_I_NOEXEC | SB_I_NODEV; sb->s_blocksize = PAGE_SIZE; sb->s_blocksize_bits = PAGE_SHIFT; @@@ -326,18 -344,44 +344,44 @@@ return 0; } + static struct file_system_type mqueue_fs_type; + /* + * Return value is pinned only by reference in ->mq_mnt; it will + * live until ipcns dies. Caller does not need to drop it. + */ + static struct vfsmount *mq_internal_mount(void) + { + struct ipc_namespace *ns = current->nsproxy->ipc_ns; + struct vfsmount *m = ns->mq_mnt; + if (m) + return m; + m = kern_mount_data(&mqueue_fs_type, ns); + spin_lock(&mq_lock); + if (unlikely(ns->mq_mnt)) { + spin_unlock(&mq_lock); + if (!IS_ERR(m)) + kern_unmount(m); + return ns->mq_mnt; + } + if (!IS_ERR(m)) + ns->mq_mnt = m; + spin_unlock(&mq_lock); + return m; + } + static struct dentry *mqueue_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) { - struct ipc_namespace *ns; - if (flags & SB_KERNMOUNT) { - ns = data; - data = NULL; - } else { - ns = current->nsproxy->ipc_ns; - } - return mount_ns(fs_type, flags, data, ns, ns->user_ns, mqueue_fill_super); + struct vfsmount *m; - if (flags & MS_KERNMOUNT) ++ if (flags & SB_KERNMOUNT) + return mount_nodev(fs_type, flags, data, mqueue_fill_super); + m = mq_internal_mount(); + if (IS_ERR(m)) + return ERR_CAST(m); + atomic_inc(&m->mnt_sb->s_active); + down_write(&m->mnt_sb->s_umount); + return dget(m->mnt_root); } static void init_once(void *foo) @@@ -416,11 -460,11 +460,11 @@@ static void mqueue_evict_inode(struct i put_ipc_ns(ipc_ns); } - static int mqueue_create(struct inode *dir, struct dentry *dentry, - umode_t mode, bool excl) + static int mqueue_create_attr(struct dentry *dentry, umode_t mode, void *arg) { + struct inode *dir = dentry->d_parent->d_inode; struct inode *inode; - struct mq_attr *attr = dentry->d_fsdata; + struct mq_attr *attr = arg; int error; struct ipc_namespace *ipc_ns; @@@ -461,6 -505,12 +505,12 @@@ out_unlock return error; } + static int mqueue_create(struct inode *dir, struct dentry *dentry, + umode_t mode, bool excl) + { + return mqueue_create_attr(dentry, mode, NULL); + } + static int mqueue_unlink(struct inode *dir, struct dentry *dentry) { struct inode *inode = d_inode(dentry); @@@ -519,10 -569,10 +569,10 @@@ static int mqueue_flush_file(struct fil return 0; } - static unsigned int mqueue_poll_file(struct file *filp, struct poll_table_struct *poll_tab) + static __poll_t mqueue_poll_file(struct file *filp, struct poll_table_struct *poll_tab) { struct mqueue_inode_info *info = MQUEUE_I(file_inode(filp)); - int retval = 0; + __poll_t retval = 0; poll_wait(filp, &info->wait_q, poll_tab); @@@ -690,96 -740,46 +740,46 @@@ static void remove_notification(struct info->notify_user_ns = NULL; } - static int mq_attr_ok(struct ipc_namespace *ipc_ns, struct mq_attr *attr) - { - int mq_treesize; - unsigned long total_size; - - if (attr->mq_maxmsg <= 0 || attr->mq_msgsize <= 0) - return -EINVAL; - if (capable(CAP_SYS_RESOURCE)) { - if (attr->mq_maxmsg > HARD_MSGMAX || - attr->mq_msgsize > HARD_MSGSIZEMAX) - return -EINVAL; - } else { - if (attr->mq_maxmsg > ipc_ns->mq_msg_max || - attr->mq_msgsize > ipc_ns->mq_msgsize_max) - return -EINVAL; - } - /* check for overflow */ - if (attr->mq_msgsize > ULONG_MAX/attr->mq_maxmsg) - return -EOVERFLOW; - mq_treesize = attr->mq_maxmsg * sizeof(struct msg_msg) + - min_t(unsigned int, attr->mq_maxmsg, MQ_PRIO_MAX) * - sizeof(struct posix_msg_tree_node); - total_size = attr->mq_maxmsg * attr->mq_msgsize; - if (total_size + mq_treesize < total_size) - return -EOVERFLOW; - return 0; - } - - /* - * Invoked when creating a new queue via sys_mq_open - */ - static struct file *do_create(struct ipc_namespace *ipc_ns, struct inode *dir, - struct path *path, int oflag, umode_t mode, + static int prepare_open(struct dentry *dentry, int oflag, int ro, + umode_t mode, struct filename *name, struct mq_attr *attr) { - const struct cred *cred = current_cred(); - int ret; - - if (attr) { - ret = mq_attr_ok(ipc_ns, attr); - if (ret) - return ERR_PTR(ret); - /* store for use during create */ - path->dentry->d_fsdata = attr; - } else { - struct mq_attr def_attr; - - def_attr.mq_maxmsg = min(ipc_ns->mq_msg_max, - ipc_ns->mq_msg_default); - def_attr.mq_msgsize = min(ipc_ns->mq_msgsize_max, - ipc_ns->mq_msgsize_default); - ret = mq_attr_ok(ipc_ns, &def_attr); - if (ret) - return ERR_PTR(ret); - } - - mode &= ~current_umask(); - ret = vfs_create(dir, path->dentry, mode, true); - path->dentry->d_fsdata = NULL; - if (ret) - return ERR_PTR(ret); - return dentry_open(path, oflag, cred); - } - - /* Opens existing queue */ - static struct file *do_open(struct path *path, int oflag) - { static const int oflag2acc[O_ACCMODE] = { MAY_READ, MAY_WRITE, MAY_READ | MAY_WRITE }; int acc; + + if (d_really_is_negative(dentry)) { + if (!(oflag & O_CREAT)) + return -ENOENT; + if (ro) + return ro; + audit_inode_parent_hidden(name, dentry->d_parent); + return vfs_mkobj(dentry, mode & ~current_umask(), + mqueue_create_attr, attr); + } + /* it already existed */ + audit_inode(name, dentry, 0); + if ((oflag & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL)) + return -EEXIST; if ((oflag & O_ACCMODE) == (O_RDWR | O_WRONLY)) - return ERR_PTR(-EINVAL); + return -EINVAL; acc = oflag2acc[oflag & O_ACCMODE]; - if (inode_permission(d_inode(path->dentry), acc)) - return ERR_PTR(-EACCES); - return dentry_open(path, oflag, current_cred()); + return inode_permission(d_inode(dentry), acc); } static int do_mq_open(const char __user *u_name, int oflag, umode_t mode, struct mq_attr *attr) { - struct path path; - struct file *filp; + struct vfsmount *mnt = mq_internal_mount(); + struct dentry *root; struct filename *name; + struct path path; int fd, error; - struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns; - struct vfsmount *mnt = ipc_ns->mq_mnt; - struct dentry *root = mnt->mnt_root; int ro; + if (IS_ERR(mnt)) + return PTR_ERR(mnt); + audit_mq_open(oflag, mode, attr); if (IS_ERR(name = getname(u_name))) @@@ -790,7 -790,7 +790,7 @@@ goto out_putname; ro = mnt_want_write(mnt); /* we'll drop it in any case */ - error = 0; + root = mnt->mnt_root; inode_lock(d_inode(root)); path.dentry = lookup_one_len(name->name, root, strlen(name->name)); if (IS_ERR(path.dentry)) { @@@ -798,38 -798,14 +798,14 @@@ goto out_putfd; } path.mnt = mntget(mnt); - - if (oflag & O_CREAT) { - if (d_really_is_positive(path.dentry)) { /* entry already exists */ - audit_inode(name, path.dentry, 0); - if (oflag & O_EXCL) { - error = -EEXIST; - goto out; - } - filp = do_open(&path, oflag); - } else { - if (ro) { - error = ro; - goto out; - } - audit_inode_parent_hidden(name, root); - filp = do_create(ipc_ns, d_inode(root), &path, - oflag, mode, attr); - } - } else { - if (d_really_is_negative(path.dentry)) { - error = -ENOENT; - goto out; - } - audit_inode(name, path.dentry, 0); - filp = do_open(&path, oflag); + error = prepare_open(path.dentry, oflag, ro, mode, name, attr); + if (!error) { + struct file *file = dentry_open(&path, oflag, current_cred()); + if (!IS_ERR(file)) + fd_install(fd, file); + else + error = PTR_ERR(file); } - - if (!IS_ERR(filp)) - fd_install(fd, filp); - else - error = PTR_ERR(filp); - out: path_put(&path); out_putfd: if (error) { @@@ -863,6 -839,9 +839,9 @@@ SYSCALL_DEFINE1(mq_unlink, const char _ struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns; struct vfsmount *mnt = ipc_ns->mq_mnt; + if (!mnt) + return -ENOENT; + name = getname(u_name); if (IS_ERR(name)) return PTR_ERR(name); @@@ -1589,28 -1568,26 +1568,26 @@@ int mq_init_ns(struct ipc_namespace *ns ns->mq_msgsize_max = DFLT_MSGSIZEMAX; ns->mq_msg_default = DFLT_MSG; ns->mq_msgsize_default = DFLT_MSGSIZE; + ns->mq_mnt = NULL; - ns->mq_mnt = kern_mount_data(&mqueue_fs_type, ns); - if (IS_ERR(ns->mq_mnt)) { - int err = PTR_ERR(ns->mq_mnt); - ns->mq_mnt = NULL; - return err; - } return 0; } void mq_clear_sbinfo(struct ipc_namespace *ns) { - ns->mq_mnt->mnt_sb->s_fs_info = NULL; + if (ns->mq_mnt) + ns->mq_mnt->mnt_sb->s_fs_info = NULL; } void mq_put_mnt(struct ipc_namespace *ns) { - kern_unmount(ns->mq_mnt); + if (ns->mq_mnt) + kern_unmount(ns->mq_mnt); } static int __init init_mqueue_fs(void) { + struct vfsmount *m; int error; mqueue_inode_cachep = kmem_cache_create("mqueue_inode_cache", @@@ -1632,6 -1609,10 +1609,10 @@@ if (error) goto out_filesystem; + m = kern_mount_data(&mqueue_fs_type, &init_ipc_ns); + if (IS_ERR(m)) + goto out_filesystem; + init_ipc_ns.mq_mnt = m; return 0; out_filesystem: diff --combined kernel/events/core.c index 4df5b695bf0d,857c40d98d2c..4dd0e1ea876d --- a/kernel/events/core.c +++ b/kernel/events/core.c @@@ -4511,11 -4511,11 +4511,11 @@@ perf_read(struct file *file, char __use return ret; } - static unsigned int perf_poll(struct file *file, poll_table *wait) + static __poll_t perf_poll(struct file *file, poll_table *wait) { struct perf_event *event = file->private_data; struct ring_buffer *rb; - unsigned int events = POLLHUP; + __poll_t events = POLLHUP; poll_wait(file, &event->waitq, wait); @@@ -6639,7 -6639,6 +6639,7 @@@ static void perf_event_namespaces_outpu struct perf_namespaces_event *namespaces_event = data; struct perf_output_handle handle; struct perf_sample_data sample; + u16 header_size = namespaces_event->event_id.header.size; int ret; if (!perf_event_namespaces_match(event)) @@@ -6650,7 -6649,7 +6650,7 @@@ ret = perf_output_begin(&handle, event, namespaces_event->event_id.header.size); if (ret) - return; + goto out; namespaces_event->event_id.pid = perf_event_pid(event, namespaces_event->task); @@@ -6662,8 -6661,6 +6662,8 @@@ perf_event__output_id_sample(event, &handle, &sample); perf_output_end(&handle); +out: + namespaces_event->event_id.header.size = header_size; } static void perf_fill_ns_link_info(struct perf_ns_link_info *ns_link_info, @@@ -7990,11 -7987,11 +7990,11 @@@ static void bpf_overflow_handler(struc { struct bpf_perf_event_data_kern ctx = { .data = data, - .regs = regs, .event = event, }; int ret = 0; + ctx.regs = perf_arch_bpf_user_pt_regs(regs); preempt_disable(); if (unlikely(__this_cpu_inc_return(bpf_prog_active) != 1)) goto out; diff --combined kernel/printk/printk.c index b9006617710f,8aa27be96012..c2e713f6ae2e --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@@ -920,10 -920,10 +920,10 @@@ static loff_t devkmsg_llseek(struct fil return ret; } - static unsigned int devkmsg_poll(struct file *file, poll_table *wait) + static __poll_t devkmsg_poll(struct file *file, poll_table *wait) { struct devkmsg_user *user = file->private_data; - int ret = 0; + __poll_t ret = 0; if (!user) return POLLERR|POLLNVAL; @@@ -3141,6 -3141,9 +3141,6 @@@ void dump_stack_print_info(const char * void show_regs_print_info(const char *log_lvl) { dump_stack_print_info(log_lvl); - - printk("%stask: %p task.stack: %p\n", - log_lvl, current, task_stack_page(current)); } #endif diff --combined kernel/trace/ring_buffer.c index 9ab18995ff1e,d24d48713ef3..d399b4072951 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@@ -280,8 -280,6 +280,8 @@@ EXPORT_SYMBOL_GPL(ring_buffer_event_dat /* Missed count stored at end */ #define RB_MISSED_STORED (1 << 30) +#define RB_MISSED_FLAGS (RB_MISSED_EVENTS|RB_MISSED_STORED) + struct buffer_data_page { u64 time_stamp; /* page time stamp */ local_t commit; /* write committed index */ @@@ -333,9 -331,7 +333,9 @@@ static void rb_init_page(struct buffer_ */ size_t ring_buffer_page_len(void *page) { - return local_read(&((struct buffer_data_page *)page)->commit) + struct buffer_data_page *bpage = page; + + return (local_read(&bpage->commit) & ~RB_MISSED_FLAGS) + BUF_PAGE_HDR_SIZE; } @@@ -630,7 -626,7 +630,7 @@@ int ring_buffer_wait(struct ring_buffe * Returns POLLIN | POLLRDNORM if data exists in the buffers, * zero otherwise. */ - int ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu, + __poll_t ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu, struct file *filp, poll_table *poll_table) { struct ring_buffer_per_cpu *cpu_buffer; @@@ -1803,6 -1799,12 +1803,6 @@@ void ring_buffer_change_overwrite(struc } EXPORT_SYMBOL_GPL(ring_buffer_change_overwrite); -static __always_inline void * -__rb_data_page_index(struct buffer_data_page *bpage, unsigned index) -{ - return bpage->data + index; -} - static __always_inline void *__rb_page_index(struct buffer_page *bpage, unsigned index) { return bpage->page->data + index; @@@ -4404,13 -4406,8 +4404,13 @@@ void ring_buffer_free_read_page(struct { struct ring_buffer_per_cpu *cpu_buffer = buffer->buffers[cpu]; struct buffer_data_page *bpage = data; + struct page *page = virt_to_page(bpage); unsigned long flags; + /* If the page is still in use someplace else, we can't reuse it */ + if (page_ref_count(page) > 1) + goto out; + local_irq_save(flags); arch_spin_lock(&cpu_buffer->lock); @@@ -4422,7 -4419,6 +4422,7 @@@ arch_spin_unlock(&cpu_buffer->lock); local_irq_restore(flags); + out: free_page((unsigned long)bpage); } EXPORT_SYMBOL_GPL(ring_buffer_free_read_page); diff --combined kernel/trace/trace.c index 2a8d8a294345,1e2a45e87b93..ec54e2e14b71 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@@ -362,7 -362,7 +362,7 @@@ trace_ignore_this_task(struct trace_pid } /** - * trace_pid_filter_add_remove - Add or remove a task from a pid_list + * trace_pid_filter_add_remove_task - Add or remove a task from a pid_list * @pid_list: The list to modify * @self: The current task for fork or NULL for exit * @task: The task to add or remove @@@ -925,7 -925,7 +925,7 @@@ static void tracing_snapshot_instance(s } /** - * trace_snapshot - take a snapshot of the current buffer. + * tracing_snapshot - take a snapshot of the current buffer. * * This causes a swap between the snapshot buffer and the current live * tracing buffer. You can use this to take snapshots of the live @@@ -1004,9 -1004,9 +1004,9 @@@ int tracing_alloc_snapshot(void EXPORT_SYMBOL_GPL(tracing_alloc_snapshot); /** - * trace_snapshot_alloc - allocate and take a snapshot of the current buffer. + * tracing_snapshot_alloc - allocate and take a snapshot of the current buffer. * - * This is similar to trace_snapshot(), but it will allocate the + * This is similar to tracing_snapshot(), but it will allocate the * snapshot buffer if it isn't already allocated. Use this only * where it is safe to sleep, as the allocation may sleep. * @@@ -1303,7 -1303,7 +1303,7 @@@ unsigned long __read_mostly tracing_thr /* * Copy the new maximum trace into the separate maximum-trace * structure. (this way the maximum trace is permanently saved, - * for later retrieval via /sys/kernel/debug/tracing/latency_trace) + * for later retrieval via /sys/kernel/tracing/tracing_max_latency) */ static void __update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu) @@@ -2415,7 -2415,7 +2415,7 @@@ trace_process_export(struct trace_expor entry = ring_buffer_event_data(event); size = ring_buffer_event_length(event); - export->write(entry, size); + export->write(export, entry, size); } static DEFINE_MUTEX(ftrace_export_lock); @@@ -4178,30 -4178,37 +4178,30 @@@ static const struct file_operations sho .llseek = seq_lseek, }; -/* - * The tracer itself will not take this lock, but still we want - * to provide a consistent cpumask to user-space: - */ -static DEFINE_MUTEX(tracing_cpumask_update_lock); - -/* - * Temporary storage for the character representation of the - * CPU bitmask (and one more byte for the newline): - */ -static char mask_str[NR_CPUS + 1]; - static ssize_t tracing_cpumask_read(struct file *filp, char __user *ubuf, size_t count, loff_t *ppos) { struct trace_array *tr = file_inode(filp)->i_private; + char *mask_str; int len; - mutex_lock(&tracing_cpumask_update_lock); + len = snprintf(NULL, 0, "%*pb\n", + cpumask_pr_args(tr->tracing_cpumask)) + 1; + mask_str = kmalloc(len, GFP_KERNEL); + if (!mask_str) + return -ENOMEM; - len = snprintf(mask_str, count, "%*pb\n", + len = snprintf(mask_str, len, "%*pb\n", cpumask_pr_args(tr->tracing_cpumask)); if (len >= count) { count = -EINVAL; goto out_err; } - count = simple_read_from_buffer(ubuf, count, ppos, mask_str, NR_CPUS+1); + count = simple_read_from_buffer(ubuf, count, ppos, mask_str, len); out_err: - mutex_unlock(&tracing_cpumask_update_lock); + kfree(mask_str); return count; } @@@ -4221,6 -4228,8 +4221,6 @@@ tracing_cpumask_write(struct file *filp if (err) goto err_unlock; - mutex_lock(&tracing_cpumask_update_lock); - local_irq_disable(); arch_spin_lock(&tr->max_lock); for_each_tracing_cpu(cpu) { @@@ -4243,6 -4252,8 +4243,6 @@@ local_irq_enable(); cpumask_copy(tr->tracing_cpumask, tracing_cpumask_new); - - mutex_unlock(&tracing_cpumask_update_lock); free_cpumask_var(tracing_cpumask_new); return count; @@@ -5621,7 -5632,7 +5621,7 @@@ static int tracing_release_pipe(struct return 0; } - static unsigned int + static __poll_t trace_poll(struct trace_iterator *iter, struct file *filp, poll_table *poll_table) { struct trace_array *tr = iter->tr; @@@ -5640,7 -5651,7 +5640,7 @@@ filp, poll_table); } - static unsigned int + static __poll_t tracing_poll_pipe(struct file *filp, poll_table *poll_table) { struct trace_iterator *iter = filp->private_data; @@@ -6594,7 -6605,7 +6594,7 @@@ static int tracing_buffers_open(struct return ret; } - static unsigned int + static __poll_t tracing_buffers_poll(struct file *filp, poll_table *poll_table) { struct ftrace_buffer_info *info = filp->private_data; @@@ -6769,7 -6780,7 +6769,7 @@@ tracing_buffers_splice_read(struct fil .spd_release = buffer_spd_release, }; struct buffer_ref *ref; - int entries, size, i; + int entries, i; ssize_t ret = 0; #ifdef CONFIG_TRACER_MAX_TRACE @@@ -6823,6 -6834,14 +6823,6 @@@ break; } - /* - * zero out any left over data, this is going to - * user land. - */ - size = ring_buffer_page_len(ref->page); - if (size < PAGE_SIZE) - memset(ref->page + size, 0, PAGE_SIZE - size); - page = virt_to_page(ref->page); spd.pages[i] = page; @@@ -7580,7 -7599,6 +7580,7 @@@ allocate_trace_buffer(struct trace_arra buf->data = alloc_percpu(struct trace_array_cpu); if (!buf->data) { ring_buffer_free(buf->buffer); + buf->buffer = NULL; return -ENOMEM; } @@@ -7604,9 -7622,7 +7604,9 @@@ static int allocate_trace_buffers(struc allocate_snapshot ? size : 1); if (WARN_ON(ret)) { ring_buffer_free(tr->trace_buffer.buffer); + tr->trace_buffer.buffer = NULL; free_percpu(tr->trace_buffer.data); + tr->trace_buffer.data = NULL; return -ENOMEM; } tr->allocated_snapshot = allocate_snapshot; diff --combined mm/gup.c index e0d82b6706d7,61015793f952..9e17d8db2d6b --- a/mm/gup.c +++ b/mm/gup.c @@@ -848,7 -848,7 +848,7 @@@ static __always_inline long __get_user_ unsigned long nr_pages, struct page **pages, struct vm_area_struct **vmas, - int *locked, bool notify_drop, + int *locked, unsigned int flags) { long ret, pages_done; @@@ -922,7 -922,7 +922,7 @@@ pages++; start += PAGE_SIZE; } - if (notify_drop && lock_dropped && *locked) { + if (lock_dropped && *locked) { /* * We must let the caller know we temporarily dropped the lock * and so the critical section protected by it was lost. @@@ -959,36 -959,12 +959,12 @@@ long get_user_pages_locked(unsigned lon int *locked) { return __get_user_pages_locked(current, current->mm, start, nr_pages, - pages, NULL, locked, true, + pages, NULL, locked, gup_flags | FOLL_TOUCH); } EXPORT_SYMBOL(get_user_pages_locked); /* - * Same as get_user_pages_unlocked(...., FOLL_TOUCH) but it allows for - * tsk, mm to be specified. - * - * NOTE: here FOLL_TOUCH is not set implicitly and must be set by the - * caller if required (just like with __get_user_pages). "FOLL_GET" - * is set implicitly if "pages" is non-NULL. - */ - static __always_inline long __get_user_pages_unlocked(struct task_struct *tsk, - struct mm_struct *mm, unsigned long start, - unsigned long nr_pages, struct page **pages, - unsigned int gup_flags) - { - long ret; - int locked = 1; - - down_read(&mm->mmap_sem); - ret = __get_user_pages_locked(tsk, mm, start, nr_pages, pages, NULL, - &locked, false, gup_flags); - if (locked) - up_read(&mm->mmap_sem); - return ret; - } - - /* * get_user_pages_unlocked() is suitable to replace the form: * * down_read(&mm->mmap_sem); @@@ -1006,8 -982,16 +982,16 @@@ long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages, struct page **pages, unsigned int gup_flags) { - return __get_user_pages_unlocked(current, current->mm, start, nr_pages, - pages, gup_flags | FOLL_TOUCH); + struct mm_struct *mm = current->mm; + int locked = 1; + long ret; + + down_read(&mm->mmap_sem); + ret = __get_user_pages_locked(current, mm, start, nr_pages, pages, NULL, + &locked, gup_flags | FOLL_TOUCH); + if (locked) + up_read(&mm->mmap_sem); + return ret; } EXPORT_SYMBOL(get_user_pages_unlocked); @@@ -1073,7 -1057,7 +1057,7 @@@ long get_user_pages_remote(struct task_ struct vm_area_struct **vmas, int *locked) { return __get_user_pages_locked(tsk, mm, start, nr_pages, pages, vmas, - locked, true, + locked, gup_flags | FOLL_TOUCH | FOLL_REMOTE); } EXPORT_SYMBOL(get_user_pages_remote); @@@ -1090,75 -1074,11 +1074,75 @@@ long get_user_pages(unsigned long start struct vm_area_struct **vmas) { return __get_user_pages_locked(current, current->mm, start, nr_pages, - pages, vmas, NULL, false, + pages, vmas, NULL, gup_flags | FOLL_TOUCH); } EXPORT_SYMBOL(get_user_pages); +#ifdef CONFIG_FS_DAX +/* + * This is the same as get_user_pages() in that it assumes we are + * operating on the current task's mm, but it goes further to validate + * that the vmas associated with the address range are suitable for + * longterm elevated page reference counts. For example, filesystem-dax + * mappings are subject to the lifetime enforced by the filesystem and + * we need guarantees that longterm users like RDMA and V4L2 only + * establish mappings that have a kernel enforced revocation mechanism. + * + * "longterm" == userspace controlled elevated page count lifetime. + * Contrast this to iov_iter_get_pages() usages which are transient. + */ +long get_user_pages_longterm(unsigned long start, unsigned long nr_pages, + unsigned int gup_flags, struct page **pages, + struct vm_area_struct **vmas_arg) +{ + struct vm_area_struct **vmas = vmas_arg; + struct vm_area_struct *vma_prev = NULL; + long rc, i; + + if (!pages) + return -EINVAL; + + if (!vmas) { + vmas = kcalloc(nr_pages, sizeof(struct vm_area_struct *), + GFP_KERNEL); + if (!vmas) + return -ENOMEM; + } + + rc = get_user_pages(start, nr_pages, gup_flags, pages, vmas); + + for (i = 0; i < rc; i++) { + struct vm_area_struct *vma = vmas[i]; + + if (vma == vma_prev) + continue; + + vma_prev = vma; + + if (vma_is_fsdax(vma)) + break; + } + + /* + * Either get_user_pages() failed, or the vma validation + * succeeded, in either case we don't need to put_page() before + * returning. + */ + if (i >= rc) + goto out; + + for (i = 0; i < rc; i++) + put_page(pages[i]); + rc = -EOPNOTSUPP; +out: + if (vmas != vmas_arg) + kfree(vmas); + return rc; +} +EXPORT_SYMBOL(get_user_pages_longterm); +#endif /* CONFIG_FS_DAX */ + /** * populate_vma_page_range() - populate a range of pages in the vma. * @vma: target vma diff --combined mm/memcontrol.c index ac2ffd5e02b9,006aa27f4fb4..9011997d8a5c --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@@ -3777,7 -3777,7 +3777,7 @@@ static int memcg_event_wake(wait_queue_ struct mem_cgroup_event *event = container_of(wait, struct mem_cgroup_event, wait); struct mem_cgroup *memcg = event->memcg; - unsigned long flags = (unsigned long)key; + __poll_t flags = key_to_poll(key); if (flags & POLLHUP) { /* @@@ -6044,7 -6044,7 +6044,7 @@@ void mem_cgroup_swapout(struct page *pa memcg_check_events(memcg, page); if (!mem_cgroup_is_root(memcg)) - css_put(&memcg->css); + css_put_many(&memcg->css, nr_entries); } /** diff --combined net/9p/trans_fd.c index 80f5c79053a4,439014113a5c..d6f7f7cb79c4 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@@ -228,32 -228,31 +228,31 @@@ static void p9_conn_cancel(struct p9_co } } - static int - p9_fd_poll(struct p9_client *client, struct poll_table_struct *pt) + static __poll_t + p9_fd_poll(struct p9_client *client, struct poll_table_struct *pt, int *err) { - int ret, n; + __poll_t ret, n; struct p9_trans_fd *ts = NULL; if (client && client->status == Connected) ts = client->trans; - if (!ts) - return -EREMOTEIO; + if (!ts) { + if (err) + *err = -EREMOTEIO; + return POLLERR; + } if (!ts->rd->f_op->poll) - return -EIO; - - if (!ts->wr->f_op->poll) - return -EIO; - - ret = ts->rd->f_op->poll(ts->rd, pt); - if (ret < 0) - return ret; + ret = DEFAULT_POLLMASK; + else + ret = ts->rd->f_op->poll(ts->rd, pt); if (ts->rd != ts->wr) { - n = ts->wr->f_op->poll(ts->wr, pt); - if (n < 0) - return n; + if (!ts->wr->f_op->poll) + n = DEFAULT_POLLMASK; + else + n = ts->wr->f_op->poll(ts->wr, pt); ret = (ret & ~POLLOUT) | (n & ~POLLIN); } @@@ -298,7 -297,8 +297,8 @@@ static int p9_fd_read(struct p9_client static void p9_read_work(struct work_struct *work) { - int n, err; + __poll_t n; + int err; struct p9_conn *m; int status = REQ_STATUS_ERROR; @@@ -398,7 -398,7 +398,7 @@@ end_clear if (test_and_clear_bit(Rpending, &m->wsched)) n = POLLIN; else - n = p9_fd_poll(m->client, NULL); + n = p9_fd_poll(m->client, NULL, NULL); if ((n & POLLIN) && !test_and_set_bit(Rworksched, &m->wsched)) { p9_debug(P9_DEBUG_TRANS, "sched read work %p\n", m); @@@ -448,7 -448,8 +448,8 @@@ static int p9_fd_write(struct p9_clien static void p9_write_work(struct work_struct *work) { - int n, err; + __poll_t n; + int err; struct p9_conn *m; struct p9_req_t *req; @@@ -506,7 -507,7 +507,7 @@@ end_clear if (test_and_clear_bit(Wpending, &m->wsched)) n = POLLOUT; else - n = p9_fd_poll(m->client, NULL); + n = p9_fd_poll(m->client, NULL, NULL); if ((n & POLLOUT) && !test_and_set_bit(Wworksched, &m->wsched)) { @@@ -581,7 -582,7 +582,7 @@@ p9_pollwait(struct file *filp, wait_que static void p9_conn_create(struct p9_client *client) { - int n; + __poll_t n; struct p9_trans_fd *ts = client->trans; struct p9_conn *m = &ts->conn; @@@ -597,7 -598,7 +598,7 @@@ INIT_LIST_HEAD(&m->poll_pending_link); init_poll_funcptr(&m->pt, p9_pollwait); - n = p9_fd_poll(client, &m->pt); + n = p9_fd_poll(client, &m->pt, NULL); if (n & POLLIN) { p9_debug(P9_DEBUG_TRANS, "mux %p can read\n", m); set_bit(Rpending, &m->wsched); @@@ -617,17 -618,16 +618,16 @@@ static void p9_poll_mux(struct p9_conn *m) { - int n; + __poll_t n; + int err = -ECONNRESET; if (m->err < 0) return; - n = p9_fd_poll(m->client, NULL); - if (n < 0 || n & (POLLERR | POLLHUP | POLLNVAL)) { + n = p9_fd_poll(m->client, NULL, &err); + if (n & (POLLERR | POLLHUP | POLLNVAL)) { p9_debug(P9_DEBUG_TRANS, "error mux %p err %d\n", m, n); - if (n >= 0) - n = -ECONNRESET; - p9_conn_cancel(m, n); + p9_conn_cancel(m, err); } if (n & POLLIN) { @@@ -663,7 -663,7 +663,7 @@@ static int p9_fd_request(struct p9_client *client, struct p9_req_t *req) { - int n; + __poll_t n; struct p9_trans_fd *ts = client->trans; struct p9_conn *m = &ts->conn; @@@ -680,7 -680,7 +680,7 @@@ if (test_and_clear_bit(Wpending, &m->wsched)) n = POLLOUT; else - n = p9_fd_poll(m->client, NULL); + n = p9_fd_poll(m->client, NULL, NULL); if (n & POLLOUT && !test_and_set_bit(Wworksched, &m->wsched)) schedule_work(&m->wq); @@@ -839,6 -839,7 +839,6 @@@ static int p9_socket_open(struct p9_cli if (IS_ERR(file)) { pr_err("%s (%d): failed to map fd\n", __func__, task_pid_nr(current)); - sock_release(csocket); kfree(p); return PTR_ERR(file); } diff --combined net/dccp/proto.c index 9d43c1f40274,cfa9ca9939ce..8b8db3d481bd --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@@ -259,7 -259,6 +259,7 @@@ int dccp_disconnect(struct sock *sk, in { struct inet_connection_sock *icsk = inet_csk(sk); struct inet_sock *inet = inet_sk(sk); + struct dccp_sock *dp = dccp_sk(sk); int err = 0; const int old_state = sk->sk_state; @@@ -279,10 -278,6 +279,10 @@@ sk->sk_err = ECONNRESET; dccp_clear_xmit_timers(sk); + ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk); + ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk); + dp->dccps_hc_rx_ccid = NULL; + dp->dccps_hc_tx_ccid = NULL; __skb_queue_purge(&sk->sk_receive_queue); __skb_queue_purge(&sk->sk_write_queue); @@@ -318,10 -313,10 +318,10 @@@ EXPORT_SYMBOL_GPL(dccp_disconnect) * take care of normal races (between the test and the event) and we don't * go look at any of the socket buffers directly. */ - unsigned int dccp_poll(struct file *file, struct socket *sock, + __poll_t dccp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask; + __poll_t mask; struct sock *sk = sock->sk; sock_poll_wait(file, sk_sleep(sk), wait); diff --combined net/ipv4/tcp.c index f08eebe60446,0b8ca689353b..c4a7ee7f6721 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@@ -493,9 -493,9 +493,9 @@@ static void tcp_tx_timestamp(struct soc * take care of normal races (between the test and the event) and we don't * go look at any of the socket buffers directly. */ - unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) + __poll_t tcp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask; + __poll_t mask; struct sock *sk = sock->sk; const struct tcp_sock *tp = tcp_sk(sk); int state; @@@ -2412,7 -2412,6 +2412,7 @@@ int tcp_disconnect(struct sock *sk, in tp->snd_cwnd_cnt = 0; tp->window_clamp = 0; tcp_set_ca_state(sk, TCP_CA_Open); + tp->is_sack_reneg = 0; tcp_clear_retrans(tp); inet_csk_delack_init(sk); /* Initialize rcv_mss to TCP_MIN_MSS to avoid division by 0 diff --combined net/netfilter/xt_bpf.c index 1f7fbd3c7e5a,fa2ca0a13619..39809253a670 --- a/net/netfilter/xt_bpf.c +++ b/net/netfilter/xt_bpf.c @@@ -27,9 -27,6 +27,9 @@@ static int __bpf_mt_check_bytecode(stru { struct sock_fprog_kern program; + if (len > XT_BPF_MAX_NUM_INSTR) + return -EINVAL; + program.len = len; program.filter = insns; @@@ -55,21 -52,8 +55,8 @@@ static int __bpf_mt_check_fd(int fd, st static int __bpf_mt_check_path(const char *path, struct bpf_prog **ret) { - mm_segment_t oldfs = get_fs(); - int retval, fd; - - if (strnlen(path, XT_BPF_PATH_MAX) == XT_BPF_PATH_MAX) - return -EINVAL; - - set_fs(KERNEL_DS); - fd = bpf_obj_get_user(path, 0); - set_fs(oldfs); - if (fd < 0) - return fd; - - retval = __bpf_mt_check_fd(fd, ret); - sys_close(fd); - return retval; + *ret = bpf_prog_get_type_path(path, BPF_PROG_TYPE_SOCKET_FILTER); + return PTR_ERR_OR_ZERO(*ret); } static int bpf_mt_check(const struct xt_mtchk_param *par) diff --combined net/packet/af_packet.c index da215e5c1399,ef6340e2406a..3b4d6a3cf190 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@@ -1687,6 -1687,7 +1687,6 @@@ static int fanout_add(struct sock *sk, atomic_long_set(&rollover->num, 0); atomic_long_set(&rollover->num_huge, 0); atomic_long_set(&rollover->num_failed, 0); - po->rollover = rollover; } if (type_flags & PACKET_FANOUT_FLAG_UNIQUEID) { @@@ -1744,8 -1745,6 +1744,8 @@@ if (refcount_read(&match->sk_ref) < PACKET_FANOUT_MAX) { __dev_remove_pack(&po->prot_hook); po->fanout = match; + po->rollover = rollover; + rollover = NULL; refcount_set(&match->sk_ref, refcount_read(&match->sk_ref) + 1); __fanout_link(sk, po); err = 0; @@@ -1759,7 -1758,10 +1759,7 @@@ } out: - if (err && rollover) { - kfree_rcu(rollover, rcu); - po->rollover = NULL; - } + kfree(rollover); mutex_unlock(&fanout_mutex); return err; } @@@ -1783,6 -1785,11 +1783,6 @@@ static struct packet_fanout *fanout_rel list_del(&f->list); else f = NULL; - - if (po->rollover) { - kfree_rcu(po->rollover, rcu); - po->rollover = NULL; - } } mutex_unlock(&fanout_mutex); @@@ -3022,7 -3029,6 +3022,7 @@@ static int packet_release(struct socke synchronize_net(); if (f) { + kfree(po->rollover); fanout_release_data(f); kfree(f); } @@@ -3091,10 -3097,6 +3091,10 @@@ static int packet_do_bind(struct sock * if (need_rehook) { if (po->running) { rcu_read_unlock(); + /* prevents packet_notifier() from calling + * register_prot_hook() + */ + po->num = 0; __unregister_prot_hook(sk, true); rcu_read_lock(); dev_curr = po->prot_hook.dev; @@@ -3103,7 -3105,6 +3103,7 @@@ dev->ifindex); } + BUG_ON(po->running); po->num = proto; po->prot_hook.type = proto; @@@ -3842,6 -3843,7 +3842,6 @@@ static int packet_getsockopt(struct soc void *data = &val; union tpacket_stats_u st; struct tpacket_rollover_stats rstats; - struct packet_rollover *rollover; if (level != SOL_PACKET) return -ENOPROTOOPT; @@@ -3920,13 -3922,18 +3920,13 @@@ 0); break; case PACKET_ROLLOVER_STATS: - rcu_read_lock(); - rollover = rcu_dereference(po->rollover); - if (rollover) { - rstats.tp_all = atomic_long_read(&rollover->num); - rstats.tp_huge = atomic_long_read(&rollover->num_huge); - rstats.tp_failed = atomic_long_read(&rollover->num_failed); - data = &rstats; - lv = sizeof(rstats); - } - rcu_read_unlock(); - if (!rollover) + if (!po->rollover) return -EINVAL; + rstats.tp_all = atomic_long_read(&po->rollover->num); + rstats.tp_huge = atomic_long_read(&po->rollover->num_huge); + rstats.tp_failed = atomic_long_read(&po->rollover->num_failed); + data = &rstats; + lv = sizeof(rstats); break; case PACKET_TX_HAS_OFF: val = po->tp_tx_has_off; @@@ -4073,12 -4080,12 +4073,12 @@@ static int packet_ioctl(struct socket * return 0; } - static unsigned int packet_poll(struct file *file, struct socket *sock, + static __poll_t packet_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct packet_sock *po = pkt_sk(sk); - unsigned int mask = datagram_poll(file, sock, wait); + __poll_t mask = datagram_poll(file, sock, wait); spin_lock_bh(&sk->sk_receive_queue.lock); if (po->rx_ring.pg_vec) { diff --combined net/rxrpc/af_rxrpc.c index dcd818fa837e,f8c8953d9295..21ad6a3a465c --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@@ -285,7 -285,6 +285,7 @@@ struct rxrpc_call *rxrpc_kernel_begin_c bool upgrade) { struct rxrpc_conn_parameters cp; + struct rxrpc_call_params p; struct rxrpc_call *call; struct rxrpc_sock *rx = rxrpc_sk(sock->sk); int ret; @@@ -303,10 -302,6 +303,10 @@@ if (key && !key->payload.data[0]) key = NULL; /* a no-security key */ + memset(&p, 0, sizeof(p)); + p.user_call_ID = user_call_ID; + p.tx_total_len = tx_total_len; + memset(&cp, 0, sizeof(cp)); cp.local = rx->local; cp.key = key; @@@ -314,7 -309,8 +314,7 @@@ cp.exclusive = false; cp.upgrade = upgrade; cp.service_id = srx->srx_service; - call = rxrpc_new_client_call(rx, &cp, srx, user_call_ID, tx_total_len, - gfp); + call = rxrpc_new_client_call(rx, &cp, srx, &p, gfp); /* The socket has been unlocked. */ if (!IS_ERR(call)) { call->notify_rx = notify_rx; @@@ -729,12 -725,12 +729,12 @@@ static int rxrpc_getsockopt(struct sock /* * permit an RxRPC socket to be polled */ - static unsigned int rxrpc_poll(struct file *file, struct socket *sock, + static __poll_t rxrpc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct rxrpc_sock *rx = rxrpc_sk(sk); - unsigned int mask; + __poll_t mask; sock_poll_wait(file, sk_sleep(sk), wait); mask = 0; @@@ -860,7 -856,6 +860,7 @@@ static void rxrpc_sock_destructor(struc static int rxrpc_release_sock(struct sock *sk) { struct rxrpc_sock *rx = rxrpc_sk(sk); + struct rxrpc_net *rxnet = rxrpc_net(sock_net(&rx->sk)); _enter("%p{%d,%d}", sk, sk->sk_state, refcount_read(&sk->sk_refcnt)); @@@ -868,19 -863,6 +868,19 @@@ sock_orphan(sk); sk->sk_shutdown = SHUTDOWN_MASK; + /* We want to kill off all connections from a service socket + * as fast as possible because we can't share these; client + * sockets, on the other hand, can share an endpoint. + */ + switch (sk->sk_state) { + case RXRPC_SERVER_BOUND: + case RXRPC_SERVER_BOUND2: + case RXRPC_SERVER_LISTENING: + case RXRPC_SERVER_LISTEN_DISABLED: + rx->local->service_closed = true; + break; + } + spin_lock_bh(&sk->sk_receive_queue.lock); sk->sk_state = RXRPC_CLOSE; spin_unlock_bh(&sk->sk_receive_queue.lock); @@@ -896,8 -878,6 +896,8 @@@ rxrpc_release_calls_on_socket(rx); flush_workqueue(rxrpc_workqueue); rxrpc_purge_queue(&sk->sk_receive_queue); + rxrpc_queue_work(&rxnet->service_conn_reaper); + rxrpc_queue_work(&rxnet->client_conn_reaper); rxrpc_put_local(rx->local); rx->local = NULL; diff --combined net/sctp/socket.c index b4fb6e4886d2,8d3ac79f82e5..8f7536de5f41 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@@ -188,13 -188,13 +188,13 @@@ static void sctp_for_each_tx_datachunk( list_for_each_entry(chunk, &t->transmitted, transmitted_list) cb(chunk); - list_for_each_entry(chunk, &q->retransmit, list) + list_for_each_entry(chunk, &q->retransmit, transmitted_list) cb(chunk); - list_for_each_entry(chunk, &q->sacked, list) + list_for_each_entry(chunk, &q->sacked, transmitted_list) cb(chunk); - list_for_each_entry(chunk, &q->abandoned, list) + list_for_each_entry(chunk, &q->abandoned, transmitted_list) cb(chunk); list_for_each_entry(chunk, &q->out_chunk_list, list) @@@ -3891,17 -3891,13 +3891,17 @@@ static int sctp_setsockopt_reset_stream struct sctp_association *asoc; int retval = -EINVAL; - if (optlen < sizeof(struct sctp_reset_streams)) + if (optlen < sizeof(*params)) return -EINVAL; params = memdup_user(optval, optlen); if (IS_ERR(params)) return PTR_ERR(params); + if (params->srs_number_streams * sizeof(__u16) > + optlen - sizeof(*params)) + goto out; + asoc = sctp_id2assoc(sk, params->srs_assoc_id); if (!asoc) goto out; @@@ -4498,7 -4494,7 +4498,7 @@@ static int sctp_init_sock(struct sock * SCTP_DBG_OBJCNT_INC(sock); local_bh_disable(); - percpu_counter_inc(&sctp_sockets_allocated); + sk_sockets_allocated_inc(sk); sock_prot_inuse_add(net, sk->sk_prot, 1); /* Nothing can fail after this block, otherwise @@@ -4542,7 -4538,7 +4542,7 @@@ static void sctp_destroy_sock(struct so } sctp_endpoint_free(sp->ep); local_bh_disable(); - percpu_counter_dec(&sctp_sockets_allocated); + sk_sockets_allocated_dec(sk); sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); local_bh_enable(); } @@@ -5084,6 -5080,7 +5084,6 @@@ static int sctp_getsockopt_peeloff_comm *newfile = sock_alloc_file(newsock, 0, NULL); if (IS_ERR(*newfile)) { put_unused_fd(retval); - sock_release(newsock); retval = PTR_ERR(*newfile); *newfile = NULL; return retval; @@@ -7500,11 -7497,11 +7500,11 @@@ out * here, again, by modeling the current TCP/UDP code. We don't have * a good way to test with it yet. */ - unsigned int sctp_poll(struct file *file, struct socket *sock, poll_table *wait) + __poll_t sctp_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct sctp_sock *sp = sctp_sk(sk); - unsigned int mask; + __poll_t mask; poll_wait(file, sk_sleep(sk), wait); diff --combined net/socket.c index 05f361faec45,3e5e4f13046c..092baa464afc --- a/net/socket.c +++ b/net/socket.c @@@ -118,7 -118,7 +118,7 @@@ static ssize_t sock_write_iter(struct k static int sock_mmap(struct file *file, struct vm_area_struct *vma); static int sock_close(struct inode *inode, struct file *file); - static unsigned int sock_poll(struct file *file, + static __poll_t sock_poll(struct file *file, struct poll_table_struct *wait); static long sock_ioctl(struct file *file, unsigned int cmd, unsigned long arg); #ifdef CONFIG_COMPAT @@@ -406,10 -406,8 +406,10 @@@ struct file *sock_alloc_file(struct soc name.len = strlen(name.name); } path.dentry = d_alloc_pseudo(sock_mnt->mnt_sb, &name); - if (unlikely(!path.dentry)) + if (unlikely(!path.dentry)) { + sock_release(sock); return ERR_PTR(-ENOMEM); + } path.mnt = mntget(sock_mnt); d_instantiate(path.dentry, SOCK_INODE(sock)); @@@ -417,11 -415,9 +417,11 @@@ file = alloc_file(&path, FMODE_READ | FMODE_WRITE, &socket_file_ops); if (IS_ERR(file)) { - /* drop dentry, keep inode */ + /* drop dentry, keep inode for a bit */ ihold(d_inode(path.dentry)); path_put(&path); + /* ... and now kill it properly */ + sock_release(sock); return file; } @@@ -1095,9 -1091,9 +1095,9 @@@ out_release EXPORT_SYMBOL(sock_create_lite); /* No kernel lock held - perfect */ - static unsigned int sock_poll(struct file *file, poll_table *wait) + static __poll_t sock_poll(struct file *file, poll_table *wait) { - unsigned int busy_flag = 0; + __poll_t busy_flag = 0; struct socket *sock; /* @@@ -1334,9 -1330,19 +1334,9 @@@ SYSCALL_DEFINE3(socket, int, family, in retval = sock_create(family, type, protocol, &sock); if (retval < 0) - goto out; - - retval = sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK)); - if (retval < 0) - goto out_release; - -out: - /* It may be already another descriptor 8) Not kernel problem. */ - return retval; + return retval; -out_release: - sock_release(sock); - return retval; + return sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK)); } /* @@@ -1360,72 -1366,87 +1360,72 @@@ SYSCALL_DEFINE4(socketpair, int, family flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; /* + * reserve descriptors and make sure we won't fail + * to return them to userland. + */ + fd1 = get_unused_fd_flags(flags); + if (unlikely(fd1 < 0)) + return fd1; + + fd2 = get_unused_fd_flags(flags); + if (unlikely(fd2 < 0)) { + put_unused_fd(fd1); + return fd2; + } + + err = put_user(fd1, &usockvec[0]); + if (err) + goto out; + + err = put_user(fd2, &usockvec[1]); + if (err) + goto out; + + /* * Obtain the first socket and check if the underlying protocol * supports the socketpair call. */ err = sock_create(family, type, protocol, &sock1); - if (err < 0) + if (unlikely(err < 0)) goto out; err = sock_create(family, type, protocol, &sock2); - if (err < 0) - goto out_release_1; - - err = sock1->ops->socketpair(sock1, sock2); - if (err < 0) - goto out_release_both; - - fd1 = get_unused_fd_flags(flags); - if (unlikely(fd1 < 0)) { - err = fd1; - goto out_release_both; + if (unlikely(err < 0)) { + sock_release(sock1); + goto out; } - fd2 = get_unused_fd_flags(flags); - if (unlikely(fd2 < 0)) { - err = fd2; - goto out_put_unused_1; + err = sock1->ops->socketpair(sock1, sock2); + if (unlikely(err < 0)) { + sock_release(sock2); + sock_release(sock1); + goto out; } newfile1 = sock_alloc_file(sock1, flags, NULL); if (IS_ERR(newfile1)) { err = PTR_ERR(newfile1); - goto out_put_unused_both; + sock_release(sock2); + goto out; } newfile2 = sock_alloc_file(sock2, flags, NULL); if (IS_ERR(newfile2)) { err = PTR_ERR(newfile2); - goto out_fput_1; + fput(newfile1); + goto out; } - err = put_user(fd1, &usockvec[0]); - if (err) - goto out_fput_both; - - err = put_user(fd2, &usockvec[1]); - if (err) - goto out_fput_both; - audit_fd_pair(fd1, fd2); fd_install(fd1, newfile1); fd_install(fd2, newfile2); - /* fd1 and fd2 may be already another descriptors. - * Not kernel problem. - */ - return 0; -out_fput_both: - fput(newfile2); - fput(newfile1); - put_unused_fd(fd2); - put_unused_fd(fd1); - goto out; - -out_fput_1: - fput(newfile1); - put_unused_fd(fd2); - put_unused_fd(fd1); - sock_release(sock2); - goto out; - -out_put_unused_both: +out: put_unused_fd(fd2); -out_put_unused_1: put_unused_fd(fd1); -out_release_both: - sock_release(sock2); -out_release_1: - sock_release(sock1); -out: return err; } @@@ -1541,6 -1562,7 +1541,6 @@@ SYSCALL_DEFINE4(accept4, int, fd, struc if (IS_ERR(newfile)) { err = PTR_ERR(newfile); put_unused_fd(newfd); - sock_release(newsock); goto out_put; } diff --combined net/sunrpc/cache.c index e68943895be4,c20ac7af7a4c..aa36dad32db1 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@@ -930,10 -930,10 +930,10 @@@ out static DECLARE_WAIT_QUEUE_HEAD(queue_wait); - static unsigned int cache_poll(struct file *filp, poll_table *wait, + static __poll_t cache_poll(struct file *filp, poll_table *wait, struct cache_detail *cd) { - unsigned int mask; + __poll_t mask; struct cache_reader *rp = filp->private_data; struct cache_queue *cq; @@@ -1501,7 -1501,7 +1501,7 @@@ static ssize_t cache_write_procfs(struc return cache_write(filp, buf, count, ppos, cd); } - static unsigned int cache_poll_procfs(struct file *filp, poll_table *wait) + static __poll_t cache_poll_procfs(struct file *filp, poll_table *wait) { struct cache_detail *cd = PDE_DATA(file_inode(filp)); @@@ -1674,7 -1674,7 +1674,7 @@@ void cache_unregister_net(struct cache_ } EXPORT_SYMBOL_GPL(cache_unregister_net); -struct cache_detail *cache_create_net(struct cache_detail *tmpl, struct net *net) +struct cache_detail *cache_create_net(const struct cache_detail *tmpl, struct net *net) { struct cache_detail *cd; int i; @@@ -1720,7 -1720,7 +1720,7 @@@ static ssize_t cache_write_pipefs(struc return cache_write(filp, buf, count, ppos, cd); } - static unsigned int cache_poll_pipefs(struct file *filp, poll_table *wait) + static __poll_t cache_poll_pipefs(struct file *filp, poll_table *wait) { struct cache_detail *cd = RPC_I(file_inode(filp))->private; diff --combined net/tipc/server.c index d60c30342327,0c3b74d1e722..78a292a84afc --- a/net/tipc/server.c +++ b/net/tipc/server.c @@@ -264,8 -264,8 +264,8 @@@ static int tipc_receive_from_sock(struc iov.iov_base = buf; iov.iov_len = s->max_rcvbuf_size; msg.msg_name = &addr; - ret = kernel_recvmsg(con->sock, &msg, &iov, 1, iov.iov_len, - MSG_DONTWAIT); + iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &iov, 1, iov.iov_len); + ret = sock_recvmsg(con->sock, &msg, MSG_DONTWAIT); if (ret <= 0) { kmem_cache_free(s->rcvbuf_cache, buf); goto out_close; @@@ -314,7 -314,6 +314,7 @@@ static int tipc_accept_from_sock(struc newcon->usr_data = s->tipc_conn_new(newcon->conid); if (!newcon->usr_data) { sock_release(newsock); + conn_put(newcon); return -ENOMEM; } @@@ -512,7 -511,7 +512,7 @@@ bool tipc_topsrv_kern_subscr(struct ne s = con->server; scbr = s->tipc_conn_new(*conid); if (!scbr) { - tipc_close_conn(con); + conn_put(con); return false; } diff --combined net/tipc/socket.c index 3b4084480377,d94d25855190..2aa46e8cd8fe --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@@ -710,13 -710,13 +710,13 @@@ static int tipc_getname(struct socket * * imply that the operation will succeed, merely that it should be performed * and will not block. */ - static unsigned int tipc_poll(struct file *file, struct socket *sock, + static __poll_t tipc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct tipc_sock *tsk = tipc_sk(sk); struct tipc_group *grp = tsk->group; - u32 revents = 0; + __poll_t revents = 0; sock_poll_wait(file, sk_sleep(sk), wait); @@@ -727,11 -727,11 +727,11 @@@ switch (sk->sk_state) { case TIPC_ESTABLISHED: + case TIPC_CONNECTING: if (!tsk->cong_link_cnt && !tsk_conn_cong(tsk)) revents |= POLLOUT; /* fall thru' */ case TIPC_LISTEN: - case TIPC_CONNECTING: if (!skb_queue_empty(&sk->sk_receive_queue)) revents |= POLLIN | POLLRDNORM; break; @@@ -1140,7 -1140,7 +1140,7 @@@ void tipc_sk_mcast_rcv(struct net *net __skb_dequeue(arrvq); __skb_queue_tail(inputq, skb); } - refcount_dec(&skb->users); + kfree_skb(skb); spin_unlock_bh(&inputq->lock); continue; } diff --combined security/apparmor/apparmorfs.c index d4fa04d91439,77d30a821b85..4d202b73a0e1 --- a/security/apparmor/apparmorfs.c +++ b/security/apparmor/apparmorfs.c @@@ -571,10 -571,10 +571,10 @@@ static int ns_revision_open(struct inod return 0; } - static unsigned int ns_revision_poll(struct file *file, poll_table *pt) + static __poll_t ns_revision_poll(struct file *file, poll_table *pt) { struct aa_revision *rev = file->private_data; - unsigned int mask = 0; + __poll_t mask = 0; if (rev) { mutex_lock_nested(&rev->ns->lock, rev->ns->level); @@@ -2451,7 -2451,7 +2451,7 @@@ static int __init aa_create_aafs(void aafs_mnt = kern_mount(&aafs_ops); if (IS_ERR(aafs_mnt)) panic("can't set apparmorfs up\n"); - aafs_mnt->mnt_sb->s_flags &= ~MS_NOUSER; + aafs_mnt->mnt_sb->s_flags &= ~SB_NOUSER; /* Populate fs tree. */ error = entry_create_dir(&aa_sfs_entry, NULL); diff --combined sound/core/oss/pcm_oss.c index ceaa51f76591,caa4d0c949bf..eea99b677441 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@@ -455,6 -455,7 +455,6 @@@ static int snd_pcm_hw_param_near(struc v = snd_pcm_hw_param_last(pcm, params, var, dir); else v = snd_pcm_hw_param_first(pcm, params, var, dir); - snd_BUG_ON(v < 0); return v; } @@@ -2672,10 -2673,10 +2672,10 @@@ static int snd_pcm_oss_capture_ready(st runtime->oss.period_frames; } - static unsigned int snd_pcm_oss_poll(struct file *file, poll_table * wait) + static __poll_t snd_pcm_oss_poll(struct file *file, poll_table * wait) { struct snd_pcm_oss_file *pcm_oss_file; - unsigned int mask; + __poll_t mask; struct snd_pcm_substream *psubstream = NULL, *csubstream = NULL; pcm_oss_file = file->private_data; diff --combined sound/core/pcm_native.c index f08772568c17,6077dd6a0901..3f13e8da0812 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@@ -2580,7 -2580,7 +2580,7 @@@ static snd_pcm_sframes_t forward_appl_p return ret < 0 ? ret : frames; } -/* decrease the appl_ptr; returns the processed frames or a negative error */ +/* decrease the appl_ptr; returns the processed frames or zero for error */ static snd_pcm_sframes_t rewind_appl_ptr(struct snd_pcm_substream *substream, snd_pcm_uframes_t frames, snd_pcm_sframes_t avail) @@@ -2597,12 -2597,7 +2597,12 @@@ if (appl_ptr < 0) appl_ptr += runtime->boundary; ret = pcm_lib_apply_appl_ptr(substream, appl_ptr); - return ret < 0 ? ret : frames; + /* NOTE: we return zero for errors because PulseAudio gets depressed + * upon receiving an error from rewind ioctl and stops processing + * any longer. Returning zero means that no rewind is done, so + * it's not absolutely wrong to answer like that. + */ + return ret < 0 ? 0 : frames; } static snd_pcm_sframes_t snd_pcm_playback_rewind(struct snd_pcm_substream *substream, @@@ -3135,12 -3130,12 +3135,12 @@@ static ssize_t snd_pcm_writev(struct ki return result; } - static unsigned int snd_pcm_playback_poll(struct file *file, poll_table * wait) + static __poll_t snd_pcm_playback_poll(struct file *file, poll_table * wait) { struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; - unsigned int mask; + __poll_t mask; snd_pcm_uframes_t avail; pcm_file = file->private_data; @@@ -3174,12 -3169,12 +3174,12 @@@ return mask; } - static unsigned int snd_pcm_capture_poll(struct file *file, poll_table * wait) + static __poll_t snd_pcm_capture_poll(struct file *file, poll_table * wait) { struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; - unsigned int mask; + __poll_t mask; snd_pcm_uframes_t avail; pcm_file = file->private_data; diff --combined sound/core/rawmidi.c index f055ca10bbc1,e7e4930732a3..fae21311723f --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@@ -579,14 -579,15 +579,14 @@@ static int snd_rawmidi_info_user(struc return 0; } -int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info) +static int __snd_rawmidi_info_select(struct snd_card *card, + struct snd_rawmidi_info *info) { struct snd_rawmidi *rmidi; struct snd_rawmidi_str *pstr; struct snd_rawmidi_substream *substream; - mutex_lock(&register_mutex); rmidi = snd_rawmidi_search(card, info->device); - mutex_unlock(&register_mutex); if (!rmidi) return -ENXIO; if (info->stream < 0 || info->stream > 1) @@@ -602,16 -603,6 +602,16 @@@ } return -ENXIO; } + +int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info) +{ + int ret; + + mutex_lock(&register_mutex); + ret = __snd_rawmidi_info_select(card, info); + mutex_unlock(&register_mutex); + return ret; +} EXPORT_SYMBOL(snd_rawmidi_info_select); static int snd_rawmidi_info_select_user(struct snd_card *card, @@@ -1366,11 -1357,11 +1366,11 @@@ static ssize_t snd_rawmidi_write(struc return result; } - static unsigned int snd_rawmidi_poll(struct file *file, poll_table * wait) + static __poll_t snd_rawmidi_poll(struct file *file, poll_table * wait) { struct snd_rawmidi_file *rfile; struct snd_rawmidi_runtime *runtime; - unsigned int mask; + __poll_t mask; rfile = file->private_data; if (rfile->input != NULL) { diff --combined virt/kvm/kvm_main.c index 210bf820385a,ae4985bc8a8a..d6b9370806f8 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@@ -135,11 -135,6 +135,11 @@@ static void kvm_uevent_notify_change(un static unsigned long long kvm_createvm_count; static unsigned long long kvm_active_vms; +__weak void kvm_arch_mmu_notifier_invalidate_range(struct kvm *kvm, + unsigned long start, unsigned long end) +{ +} + bool kvm_is_reserved_pfn(kvm_pfn_t pfn) { if (pfn_valid(pfn)) @@@ -365,9 -360,6 +365,9 @@@ static void kvm_mmu_notifier_invalidate kvm_flush_remote_tlbs(kvm); spin_unlock(&kvm->mmu_lock); + + kvm_arch_mmu_notifier_invalidate_range(kvm, start, end); + srcu_read_unlock(&kvm->srcu, idx); } @@@ -1322,17 -1314,6 +1322,6 @@@ unsigned long kvm_vcpu_gfn_to_hva_prot( return gfn_to_hva_memslot_prot(slot, gfn, writable); } - static int get_user_page_nowait(unsigned long start, int write, - struct page **page) - { - int flags = FOLL_NOWAIT | FOLL_HWPOISON; - - if (write) - flags |= FOLL_WRITE; - - return get_user_pages(start, 1, flags, page, NULL); - } - static inline int check_user_page_hwpoison(unsigned long addr) { int rc, flags = FOLL_HWPOISON | FOLL_WRITE; @@@ -1381,7 -1362,8 +1370,8 @@@ static bool hva_to_pfn_fast(unsigned lo static int hva_to_pfn_slow(unsigned long addr, bool *async, bool write_fault, bool *writable, kvm_pfn_t *pfn) { - struct page *page[1]; + unsigned int flags = FOLL_HWPOISON; + struct page *page; int npages = 0; might_sleep(); @@@ -1389,35 -1371,26 +1379,26 @@@ if (writable) *writable = write_fault; - if (async) { - down_read(&current->mm->mmap_sem); - npages = get_user_page_nowait(addr, write_fault, page); - up_read(&current->mm->mmap_sem); - } else { - unsigned int flags = FOLL_HWPOISON; - - if (write_fault) - flags |= FOLL_WRITE; + if (write_fault) + flags |= FOLL_WRITE; + if (async) + flags |= FOLL_NOWAIT; - npages = get_user_pages_unlocked(addr, 1, page, flags); - } + npages = get_user_pages_unlocked(addr, 1, &page, flags); if (npages != 1) return npages; /* map read fault as writable if possible */ if (unlikely(!write_fault) && writable) { - struct page *wpage[1]; + struct page *wpage; - npages = __get_user_pages_fast(addr, 1, 1, wpage); - if (npages == 1) { + if (__get_user_pages_fast(addr, 1, 1, &wpage) == 1) { *writable = true; - put_page(page[0]); - page[0] = wpage[0]; + put_page(page); + page = wpage; } - - npages = 1; } - *pfn = page_to_pfn(page[0]); + *pfn = page_to_pfn(page); return npages; } @@@ -2073,29 -2046,6 +2054,29 @@@ void kvm_vcpu_mark_page_dirty(struct kv } EXPORT_SYMBOL_GPL(kvm_vcpu_mark_page_dirty); +void kvm_sigset_activate(struct kvm_vcpu *vcpu) +{ + if (!vcpu->sigset_active) + return; + + /* + * This does a lockless modification of ->real_blocked, which is fine + * because, only current can change ->real_blocked and all readers of + * ->real_blocked don't care as long ->real_blocked is always a subset + * of ->blocked. + */ + sigprocmask(SIG_SETMASK, &vcpu->sigset, &current->real_blocked); +} + +void kvm_sigset_deactivate(struct kvm_vcpu *vcpu) +{ + if (!vcpu->sigset_active) + return; + + sigprocmask(SIG_SETMASK, &current->real_blocked, NULL); + sigemptyset(&current->real_blocked); +} + static void grow_halt_poll_ns(struct kvm_vcpu *vcpu) { unsigned int old, val, grow; -- LinuxNextTracking

1 0

Build check errors found: 2018-01-05
by postmaster＠open-mesh.org 05 Jan '18

05 Jan '18

Name of failed tests ==================== master ------ * checkpatch ./net/batman-adv/main.h * checkpatch ./net/batman-adv/sysfs.c * difference between net-next and batadv master Output of different failed tests ================================ master: checkpatch ./net/batman-adv/main.h ------------------------------------------ WARNING: Statements should start on a tabstop #335: FILE: ./net/batman-adv/main.h:335: + typeof(y)_d2 = (y); \ WARNING: Statements should start on a tabstop #336: FILE: ./net/batman-adv/main.h:336: + typeof(x)_dummy = (_d1 - _d2); \ total: 0 errors, 2 warnings, 0 checks, 395 lines checked master: checkpatch ./net/batman-adv/sysfs.c ------------------------------------------- WARNING: Statements should start on a tabstop #919: FILE: ./net/batman-adv/sysfs.c:919: + char ifname[IFNAMSIZ]) total: 0 errors, 1 warnings, 0 checks, 1251 lines checked master: difference between net-next and batadv master ----------------------------------------------------- netnext/include/uapi/linux/batman_adv.h | 2 +- netnext/net/batman-adv/Kconfig | 2 +- netnext/net/batman-adv/Makefile | 2 +- netnext/net/batman-adv/bat_algo.c | 2 +- netnext/net/batman-adv/bat_algo.h | 2 +- netnext/net/batman-adv/bat_iv_ogm.c | 2 +- netnext/net/batman-adv/bat_iv_ogm.h | 2 +- netnext/net/batman-adv/bat_v.c | 2 +- netnext/net/batman-adv/bat_v.h | 2 +- netnext/net/batman-adv/bat_v_elp.c | 2 +- netnext/net/batman-adv/bat_v_elp.h | 2 +- netnext/net/batman-adv/bat_v_ogm.c | 2 +- netnext/net/batman-adv/bat_v_ogm.h | 2 +- netnext/net/batman-adv/bitarray.c | 2 +- netnext/net/batman-adv/bitarray.h | 2 +- netnext/net/batman-adv/bridge_loop_avoidance.c | 2 +- netnext/net/batman-adv/bridge_loop_avoidance.h | 2 +- netnext/net/batman-adv/debugfs.c | 2 +- netnext/net/batman-adv/debugfs.h | 2 +- netnext/net/batman-adv/distributed-arp-table.c | 2 +- netnext/net/batman-adv/distributed-arp-table.h | 2 +- netnext/net/batman-adv/fragmentation.c | 2 +- netnext/net/batman-adv/fragmentation.h | 2 +- netnext/net/batman-adv/gateway_client.c | 2 +- netnext/net/batman-adv/gateway_client.h | 2 +- netnext/net/batman-adv/gateway_common.c | 2 +- netnext/net/batman-adv/gateway_common.h | 2 +- netnext/net/batman-adv/hard-interface.c | 2 +- netnext/net/batman-adv/hard-interface.h | 2 +- netnext/net/batman-adv/hash.c | 2 +- netnext/net/batman-adv/hash.h | 2 +- netnext/net/batman-adv/icmp_socket.c | 2 +- netnext/net/batman-adv/icmp_socket.h | 2 +- netnext/net/batman-adv/log.c | 2 +- netnext/net/batman-adv/log.h | 2 +- netnext/net/batman-adv/main.c | 2 +- netnext/net/batman-adv/main.h | 2 +- netnext/net/batman-adv/multicast.c | 2 +- netnext/net/batman-adv/multicast.h | 2 +- netnext/net/batman-adv/netlink.c | 2 +- netnext/net/batman-adv/netlink.h | 2 +- netnext/net/batman-adv/network-coding.c | 2 +- netnext/net/batman-adv/network-coding.h | 2 +- netnext/net/batman-adv/originator.c | 2 +- netnext/net/batman-adv/originator.h | 2 +- netnext/net/batman-adv/routing.c | 2 +- netnext/net/batman-adv/routing.h | 2 +- netnext/net/batman-adv/send.c | 2 +- netnext/net/batman-adv/send.h | 2 +- netnext/net/batman-adv/soft-interface.c | 2 +- netnext/net/batman-adv/soft-interface.h | 2 +- netnext/net/batman-adv/sysfs.c | 2 +- netnext/net/batman-adv/sysfs.h | 2 +- netnext/net/batman-adv/tp_meter.c | 2 +- netnext/net/batman-adv/tp_meter.h | 2 +- netnext/net/batman-adv/translation-table.c | 2 +- netnext/net/batman-adv/translation-table.h | 2 +- netnext/net/batman-adv/tvlv.c | 2 +- netnext/net/batman-adv/tvlv.h | 2 +- netnext/net/batman-adv/types.h | 2 +- 60 files changed, 60 insertions(+), 60 deletions(-) Statistics ========== maint ----- Failed tests: 0 Started build tests: 73 Tested Linux versions: 29 Tested configs: 54 master ------ Failed tests: 3 Started build tests: 76 Tested Linux versions: 29 Tested configs: 59

1 0

[linux-next] LinuxNextTracking branch, master, updated. next-20180104
by batman＠open-mesh.org 04 Jan '18

04 Jan '18

The following commit has been merged in the master branch: commit 1c618955dc961f162d0157113eea0b770e79a26d Merge: 7b1229c3c471ff2641c028dc9a72dce2166f533a 4b24dd8022801ef75f1ce322ff2f83a51900ab5b Author: Stephen Rothwell <sfr(a)canb.auug.org.au> Date: Thu Jan 4 10:53:26 2018 +1100 Merge remote-tracking branch 'net-next/master' diff --combined MAINTAINERS index 45a716b6b92f,753799d24cd9..d923dd3469e3 --- a/MAINTAINERS +++ b/MAINTAINERS @@@ -321,7 -321,7 +321,7 @@@ F: drivers/acpi/apei ACPI COMPONENT ARCHITECTURE (ACPICA) M: Robert Moore <robert.moore(a)intel.com> -M: Lv Zheng <lv.zheng(a)intel.com> +M: Erik Schmauss <erik.schmauss(a)intel.com> M: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> L: linux-acpi(a)vger.kernel.org L: devel(a)acpica.org @@@ -1255,12 -1255,6 +1255,12 @@@ L: linux-arm-kernel(a)lists.infradead.or S: Supported F: drivers/net/ethernet/cavium/thunder/ +ARM/CIRRUS LOGIC BK3 MACHINE SUPPORT +M: Lukasz Majewski <lukma(a)denx.de> +L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) +S: Maintained +F: arch/arm/mach-ep93xx/ts72xx.c + ARM/CIRRUS LOGIC CLPS711X ARM ARCHITECTURE M: Alexander Shiyan <shc_work(a)mail.ru> L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) @@@ -1589,7 -1583,6 +1589,7 @@@ F: arch/arm/boot/dts/kirkwood F: arch/arm/configs/mvebu_*_defconfig F: arch/arm/mach-mvebu/ F: arch/arm64/boot/dts/marvell/armada* +F: drivers/cpufreq/armada-37xx-cpufreq.c F: drivers/cpufreq/mvebu-cpufreq.c F: drivers/irqchip/irq-armada-370-xp.c F: drivers/irqchip/irq-mvebu-* @@@ -1642,38 -1635,14 +1642,38 @@@ ARM/NEC MOBILEPRO 900/c MACHINE SUPPOR M: Michael Petchkovsky <mkpetch(a)internode.on.net> S: Maintained -ARM/NOMADIK ARCHITECTURE -M: Alessandro Rubini <rubini(a)unipv.it> +ARM/NOMADIK/U300/Ux500 ARCHITECTURES M: Linus Walleij <linus.walleij(a)linaro.org> L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) S: Maintained F: arch/arm/mach-nomadik/ -F: drivers/pinctrl/nomadik/ +F: arch/arm/mach-u300/ +F: arch/arm/mach-ux500/ +F: arch/arm/boot/dts/ste-* +F: drivers/clk/clk-nomadik.c +F: drivers/clk/clk-u300.c +F: drivers/clocksource/clksrc-dbx500-prcmu.c +F: drivers/clocksource/timer-u300.c +F: drivers/dma/coh901318* +F: drivers/dma/ste_dma40* +F: drivers/hwspinlock/u8500_hsem.c F: drivers/i2c/busses/i2c-nomadik.c +F: drivers/i2c/busses/i2c-stu300.c +F: drivers/mfd/ab3100* +F: drivers/mfd/ab8500* +F: drivers/mfd/abx500* +F: drivers/mfd/dbx500* +F: drivers/mfd/db8500* +F: drivers/pinctrl/nomadik/ +F: drivers/pinctrl/pinctrl-coh901* +F: drivers/pinctrl/pinctrl-u300.c +F: drivers/rtc/rtc-ab3100.c +F: drivers/rtc/rtc-ab8500.c +F: drivers/rtc/rtc-coh901331.c +F: drivers/rtc/rtc-pl031.c +F: drivers/watchdog/coh901327_wdt.c +F: Documentation/devicetree/bindings/arm/ste-* +F: Documentation/devicetree/bindings/arm/ux500/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git ARM/NUVOTON W90X900 ARM ARCHITECTURE @@@ -2053,6 -2022,21 +2053,6 @@@ M: Dmitry Eremin-Solenikov <dbaryshkov@ M: Dirk Opfer <dirk(a)opfer-online.de> S: Maintained -ARM/U300 MACHINE SUPPORT -M: Linus Walleij <linus.walleij(a)linaro.org> -L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) -S: Supported -F: arch/arm/mach-u300/ -F: drivers/clocksource/timer-u300.c -F: drivers/i2c/busses/i2c-stu300.c -F: drivers/rtc/rtc-coh901331.c -F: drivers/watchdog/coh901327_wdt.c -F: drivers/dma/coh901318* -F: drivers/mfd/ab3100* -F: drivers/rtc/rtc-ab3100.c -F: drivers/rtc/rtc-coh901331.c -T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson.git - ARM/UNIPHIER ARCHITECTURE M: Masahiro Yamada <yamada.masahiro(a)socionext.com> L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) @@@ -2074,6 -2058,24 +2074,6 @@@ F: drivers/reset/reset-uniphier. F: drivers/tty/serial/8250/8250_uniphier.c N: uniphier -ARM/Ux500 ARM ARCHITECTURE -M: Linus Walleij <linus.walleij(a)linaro.org> -L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) -S: Maintained -F: arch/arm/mach-ux500/ -F: drivers/clocksource/clksrc-dbx500-prcmu.c -F: drivers/dma/ste_dma40* -F: drivers/hwspinlock/u8500_hsem.c -F: drivers/mfd/abx500* -F: drivers/mfd/ab8500* -F: drivers/mfd/dbx500* -F: drivers/mfd/db8500* -F: drivers/pinctrl/nomadik/pinctrl-ab* -F: drivers/pinctrl/nomadik/pinctrl-nomadik* -F: drivers/rtc/rtc-ab8500.c -F: drivers/rtc/rtc-pl031.c -T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson.git - ARM/Ux500 CLOCK FRAMEWORK SUPPORT M: Ulf Hansson <ulf.hansson(a)linaro.org> L: linux-arm-kernel(a)lists.infradead.org (moderated for non-subscribers) @@@ -2200,6 -2202,14 +2200,6 @@@ L: linux-leds(a)vger.kernel.or S: Maintained F: drivers/leds/leds-as3645a.c -AS3645A LED FLASH CONTROLLER DRIVER -M: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> -L: linux-media(a)vger.kernel.org -T: git git://linuxtv.org/media_tree.git -S: Maintained -F: drivers/media/i2c/as3645a.c -F: include/media/i2c/as3645a.h - ASAHI KASEI AK8974 DRIVER M: Linus Walleij <linus.walleij(a)linaro.org> L: linux-iio(a)vger.kernel.org @@@ -2491,8 -2501,6 +2491,8 @@@ L: linux-arm-kernel(a)lists.infradead.or S: Maintained F: Documentation/devicetree/bindings/arm/axentia.txt F: arch/arm/boot/dts/at91-linea.dtsi +F: arch/arm/boot/dts/at91-natte.dtsi +F: arch/arm/boot/dts/at91-nattis-2-natte-2.dts F: arch/arm/boot/dts/at91-tse850-3.dts AXENTIA ASOC DRIVERS @@@ -2556,6 -2564,7 +2556,7 @@@ S: Maintaine F: Documentation/ABI/testing/sysfs-class-net-batman-adv F: Documentation/ABI/testing/sysfs-class-net-mesh F: Documentation/networking/batman-adv.rst + F: include/uapi/linux/batadv_packet.h F: include/uapi/linux/batman_adv.h F: net/batman-adv/ @@@ -2613,22 -2622,24 +2614,22 @@@ F: fs/bfs F: include/uapi/linux/bfs_fs.h BLACKFIN ARCHITECTURE -M: Steven Miao <realmz6(a)gmail.com> L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) T: git git://git.code.sf.net/p/adi-linux/code W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: arch/blackfin/ BLACKFIN EMAC DRIVER L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: drivers/net/ethernet/adi/ BLACKFIN MEDIA DRIVER -M: Scott Jiang <scott.jiang.linux(a)gmail.com> L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org/ -S: Supported +S: Orphan F: drivers/media/platform/blackfin/ F: drivers/media/i2c/adv7183* F: drivers/media/i2c/vs6624* @@@ -2636,25 -2647,25 +2637,25 @@@ BLACKFIN RTC DRIVER L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: drivers/rtc/rtc-bfin.c BLACKFIN SDH DRIVER L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: drivers/mmc/host/bfin_sdh.c BLACKFIN SERIAL DRIVER L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: drivers/tty/serial/bfin_uart.c BLACKFIN WATCHDOG DRIVER L: adi-buildroot-devel(a)lists.sourceforge.net (moderated for non-subscribers) W: http://blackfin.uclinux.org -S: Supported +S: Orphan F: drivers/watchdog/bfin_wdt.c BLINKM RGB LED DRIVER @@@ -2679,7 -2690,6 +2680,6 @@@ F: drivers/mtd/devices/block2mtd. BLUETOOTH DRIVERS M: Marcel Holtmann <marcel(a)holtmann.org> - M: Gustavo Padovan <gustavo(a)padovan.org> M: Johan Hedberg <johan.hedberg(a)gmail.com> L: linux-bluetooth(a)vger.kernel.org W: http://www.bluez.org/ @@@ -2690,7 -2700,6 +2690,6 @@@ F: drivers/bluetooth BLUETOOTH SUBSYSTEM M: Marcel Holtmann <marcel(a)holtmann.org> - M: Gustavo Padovan <gustavo(a)padovan.org> M: Johan Hedberg <johan.hedberg(a)gmail.com> L: linux-bluetooth(a)vger.kernel.org W: http://www.bluez.org/ @@@ -2715,12 -2724,16 +2714,16 @@@ M: Alexei Starovoitov <ast(a)kernel.org M: Daniel Borkmann <daniel(a)iogearbox.net> L: netdev(a)vger.kernel.org L: linux-kernel(a)vger.kernel.org + T: git git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git + T: git git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git S: Supported F: arch/x86/net/bpf_jit* F: Documentation/networking/filter.txt F: Documentation/bpf/ F: include/linux/bpf* F: include/linux/filter.h + F: include/trace/events/bpf.h + F: include/trace/events/xdp.h F: include/uapi/linux/bpf* F: include/uapi/linux/filter.h F: kernel/bpf/ @@@ -2824,8 -2837,6 +2827,8 @@@ S: Maintaine F: arch/arm/mach-bcm/*brcmstb* F: arch/arm/boot/dts/bcm7*.dts* F: drivers/bus/brcmstb_gisb.c +F: arch/arm/mm/cache-b15-rac.c +F: arch/arm/include/asm/hardware/cache-b15-rac.h N: brcmstb BROADCOM BMIPS CPUFREQ DRIVER @@@ -7068,14 -7079,6 +7071,14 @@@ R: Dan Williams <dan.j.williams(a)intel.c S: Odd fixes F: drivers/dma/iop-adma.c +INTEL IPU3 CSI-2 CIO2 DRIVER +M: Yong Zhi <yong.zhi(a)intel.com> +M: Sakari Ailus <sakari.ailus(a)linux.intel.com> +L: linux-media(a)vger.kernel.org +S: Maintained +F: drivers/media/pci/intel/ipu3/ +F: Documentation/media/uapi/v4l/pixfmt-srggb10-ipu3.rst + INTEL IXP4XX QMGR, NPE, ETHERNET and HSS SUPPORT M: Krzysztof Halasa <khalasa(a)piap.pl> S: Maintained @@@ -8681,15 -8684,6 +8684,15 @@@ T: git git://linuxtv.org/media_tree.gi S: Maintained F: drivers/media/dvb-frontends/stv6111* +MEDIA DRIVERS FOR NVIDIA TEGRA - VDE +M: Dmitry Osipenko <digetx(a)gmail.com> +L: linux-media(a)vger.kernel.org +L: linux-tegra(a)vger.kernel.org +T: git git://linuxtv.org/media_tree.git +S: Maintained +F: Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt +F: drivers/staging/media/tegra-vde/ + MEDIA INPUT INFRASTRUCTURE (V4L/DVB) M: Mauro Carvalho Chehab <mchehab(a)s-opensource.com> M: Mauro Carvalho Chehab <mchehab(a)kernel.org> @@@ -8733,6 -8727,13 +8736,13 @@@ L: netdev(a)vger.kernel.or S: Maintained F: drivers/net/ethernet/mediatek/ + MEDIATEK SWITCH DRIVER + M: Sean Wang <sean.wang(a)mediatek.com> + L: netdev(a)vger.kernel.org + S: Maintained + F: drivers/net/dsa/mt7530.* + F: net/dsa/tag_mtk.c + MEDIATEK JPEG DRIVER M: Rick Chang <rick.chang(a)mediatek.com> M: Bin Liu <bin.liu(a)mediatek.com> @@@ -9105,7 -9106,6 +9115,7 @@@ S: Supporte F: Documentation/devicetree/bindings/mips/ F: Documentation/mips/ F: arch/mips/ +F: drivers/platform/mips/ MIPS BOSTON DEVELOPMENT BOARD M: Paul Burton <paul.burton(a)mips.com> @@@ -9133,25 -9133,6 +9143,25 @@@ F: arch/mips/include/asm/mach-loongson3 F: drivers/*/*loongson1* F: drivers/*/*/*loongson1* +MIPS/LOONGSON2 ARCHITECTURE +M: Jiaxun Yang <jiaxun.yang(a)flygoat.com> +L: linux-mips(a)linux-mips.org +S: Maintained +F: arch/mips/loongson64/*{2e/2f}* +F: arch/mips/include/asm/mach-loongson64/ +F: drivers/*/*loongson2* +F: drivers/*/*/*loongson2* + +MIPS/LOONGSON3 ARCHITECTURE +M: Huacai Chen <chenhc(a)lemote.com> +L: linux-mips(a)linux-mips.org +S: Maintained +F: arch/mips/loongson64/ +F: arch/mips/include/asm/mach-loongson64/ +F: drivers/platform/mips/cpu_hwmon.c +F: drivers/*/*loongson3* +F: drivers/*/*/*loongson3* + MIPS RINT INSTRUCTION EMULATION M: Aleksandar Markovic <aleksandar.markovic(a)mips.com> L: linux-mips(a)linux-mips.org @@@ -9629,6 -9610,11 +9639,11 @@@ NETWORKING [WIRELESS L: linux-wireless(a)vger.kernel.org Q: http://patchwork.kernel.org/project/linux-wireless/list/ + NETDEVSIM + M: Jakub Kicinski <jakub.kicinski(a)netronome.com> + S: Maintained + F: drivers/net/netdevsim/* + NETXEN (1/10) GbE SUPPORT M: Manish Chopra <manish.chopra(a)cavium.com> M: Rahul Verma <rahul.verma(a)cavium.com> @@@ -10581,12 -10567,8 +10596,12 @@@ T: git git://git.kernel.org/pub/scm/lin S: Supported F: Documentation/devicetree/bindings/pci/ F: Documentation/PCI/ +F: drivers/acpi/pci* F: drivers/pci/ +F: include/asm-generic/pci* F: include/linux/pci* +F: include/uapi/linux/pci* +F: lib/pci* F: arch/x86/pci/ F: arch/x86/kernel/quirks.c @@@ -10925,7 -10907,6 +10940,7 @@@ F: include/linux/pm. F: include/linux/pm_* F: include/linux/powercap.h F: drivers/powercap/ +F: kernel/configs/nopm.config POWER STATE COORDINATION INTERFACE (PSCI) M: Mark Rutland <mark.rutland(a)arm.com> @@@ -12373,14 -12354,6 +12388,14 @@@ T: git git://linuxtv.org/anttip/media_t S: Maintained F: drivers/media/tuners/si2157* +SI2165 MEDIA DRIVER +M: Matthias Schwarzott <zzam(a)gentoo.org> +L: linux-media(a)vger.kernel.org +W: https://linuxtv.org +Q: http://patchwork.linuxtv.org/project/linux-media/list/ +S: Maintained +F: drivers/media/dvb-frontends/si2165* + SI2168 MEDIA DRIVER M: Antti Palosaari <crope(a)iki.fi> L: linux-media(a)vger.kernel.org @@@ -12911,6 -12884,12 +12926,6 @@@ S: Odd Fixe F: Documentation/devicetree/bindings/staging/iio/ F: drivers/staging/iio/ -STAGING - LIRC (LINUX INFRARED REMOTE CONTROL) DRIVERS -M: Jarod Wilson <jarod(a)wilsonet.com> -W: http://www.lirc.org/ -S: Odd Fixes -F: drivers/staging/media/lirc/ - STAGING - LUSTRE PARALLEL FILESYSTEM M: Oleg Drokin <oleg.drokin(a)intel.com> M: Andreas Dilger <andreas.dilger(a)intel.com> @@@ -13292,15 -13271,6 +13307,15 @@@ T: git git://linuxtv.org/anttip/media_t S: Maintained F: drivers/media/tuners/tda18218* +TDA18250 MEDIA DRIVER +M: Olli Salonen <olli.salonen(a)iki.fi> +L: linux-media(a)vger.kernel.org +W: https://linuxtv.org +Q: http://patchwork.linuxtv.org/project/linux-media/list/ +T: git git://linuxtv.org/media_tree.git +S: Maintained +F: drivers/media/tuners/tda18250* + TDA18271 MEDIA DRIVER M: Michael Krufky <mkrufky(a)linuxtv.org> L: linux-media(a)vger.kernel.org @@@ -13538,7 -13508,6 +13553,7 @@@ M: Mika Westerberg <mika.westerberg@lin M: Yehezkel Bernat <yehezkel.bernat(a)intel.com> T: git git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt.git S: Maintained +F: Documentation/admin-guide/thunderbolt.rst F: drivers/thunderbolt/ F: include/linux/thunderbolt.h diff --combined arch/arm/boot/dts/imx25.dtsi index c43cf704b768,fcaff1c66bcb..9445f8e1473c --- a/arch/arm/boot/dts/imx25.dtsi +++ b/arch/arm/boot/dts/imx25.dtsi @@@ -122,7 -122,7 +122,7 @@@ }; can1: can@43f88000 { - compatible = "fsl,imx25-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx25-flexcan"; reg = <0x43f88000 0x4000>; interrupts = <43>; clocks = <&clks 75>, <&clks 75>; @@@ -131,7 -131,7 +131,7 @@@ }; can2: can@43f8c000 { - compatible = "fsl,imx25-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx25-flexcan"; reg = <0x43f8c000 0x4000>; interrupts = <44>; clocks = <&clks 76>, <&clks 76>; @@@ -628,13 -628,11 +628,13 @@@ usbphy0: usb-phy@0 { reg = <0>; compatible = "usb-nop-xceiv"; + #phy-cells = <0>; }; usbphy1: usb-phy@1 { reg = <1>; compatible = "usb-nop-xceiv"; + #phy-cells = <0>; }; }; }; diff --combined arch/arm/boot/dts/imx35.dtsi index f049c692c6b0,1f0e2203b576..e08c0c193767 --- a/arch/arm/boot/dts/imx35.dtsi +++ b/arch/arm/boot/dts/imx35.dtsi @@@ -303,7 -303,7 +303,7 @@@ }; can1: can@53fe4000 { - compatible = "fsl,imx35-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx35-flexcan"; reg = <0x53fe4000 0x1000>; clocks = <&clks 33>, <&clks 33>; clock-names = "ipg", "per"; @@@ -312,7 -312,7 +312,7 @@@ }; can2: can@53fe8000 { - compatible = "fsl,imx35-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx35-flexcan"; reg = <0x53fe8000 0x1000>; clocks = <&clks 34>, <&clks 34>; clock-names = "ipg", "per"; @@@ -402,13 -402,11 +402,13 @@@ usbphy0: usb-phy@0 { reg = <0>; compatible = "usb-nop-xceiv"; + #phy-cells = <0>; }; usbphy1: usb-phy@1 { reg = <1>; compatible = "usb-nop-xceiv"; + #phy-cells = <0>; }; }; }; diff --combined arch/arm/boot/dts/imx53.dtsi index 38b31a37339b,85071ff8c639..1040251f2951 --- a/arch/arm/boot/dts/imx53.dtsi +++ b/arch/arm/boot/dts/imx53.dtsi @@@ -116,28 -116,6 +116,28 @@@ }; }; + pmu { + compatible = "arm,cortex-a8-pmu"; + interrupt-parent = <&tzic>; + interrupts = <77>; + }; + + usbphy0: usbphy-0 { + compatible = "usb-nop-xceiv"; + clocks = <&clks IMX5_CLK_USB_PHY1_GATE>; + clock-names = "main_clk"; + #phy-cells = <0>; + status = "okay"; + }; + + usbphy1: usbphy-1 { + compatible = "usb-nop-xceiv"; + clocks = <&clks IMX5_CLK_USB_PHY2_GATE>; + clock-names = "main_clk"; + #phy-cells = <0>; + status = "okay"; + }; + soc { #address-cells = <1>; #size-cells = <1>; @@@ -321,6 -299,20 +321,6 @@@ reg = <0x53f00000 0x60>; }; - usbphy0: usbphy-0 { - compatible = "usb-nop-xceiv"; - clocks = <&clks IMX5_CLK_USB_PHY1_GATE>; - clock-names = "main_clk"; - status = "okay"; - }; - - usbphy1: usbphy-1 { - compatible = "usb-nop-xceiv"; - clocks = <&clks IMX5_CLK_USB_PHY2_GATE>; - clock-names = "main_clk"; - status = "okay"; - }; - usbotg: usb@53f80000 { compatible = "fsl,imx53-usb", "fsl,imx27-usb"; reg = <0x53f80000 0x0200>; @@@ -441,13 -433,6 +441,13 @@@ clock-names = "ipg", "per"; }; + srtc: rtc@53fa4000 { + compatible = "fsl,imx53-rtc"; + reg = <0x53fa4000 0x4000>; + interrupts = <24>; + clocks = <&clks IMX5_CLK_SRTC_GATE>; + }; + iomuxc: iomuxc@53fa8000 { compatible = "fsl,imx53-iomuxc"; reg = <0x53fa8000 0x4000>; @@@ -551,7 -536,7 +551,7 @@@ }; can1: can@53fc8000 { - compatible = "fsl,imx53-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx53-flexcan"; reg = <0x53fc8000 0x4000>; interrupts = <82>; clocks = <&clks IMX5_CLK_CAN1_IPG_GATE>, @@@ -561,7 -546,7 +561,7 @@@ }; can2: can@53fcc000 { - compatible = "fsl,imx53-flexcan", "fsl,p1010-flexcan"; + compatible = "fsl,imx53-flexcan"; reg = <0x53fcc000 0x4000>; interrupts = <83>; clocks = <&clks IMX5_CLK_CAN2_IPG_GATE>, @@@ -828,5 -813,10 +828,5 @@@ reg = <0xf8000000 0x20000>; clocks = <&clks IMX5_CLK_OCRAM>; }; - - pmu { - compatible = "arm,cortex-a8-pmu"; - interrupts = <77>; - }; }; }; diff --combined arch/arm/boot/dts/ls1021a-qds.dts index bf15dc27ca53,4f211e3c903a..499f41a2c6f0 --- a/arch/arm/boot/dts/ls1021a-qds.dts +++ b/arch/arm/boot/dts/ls1021a-qds.dts @@@ -215,7 -215,7 +215,7 @@@ reg = <0x2a>; VDDA-supply = <&reg_3p3v>; VDDIO-supply = <&reg_3p3v>; - clocks = <&sys_mclk 1>; + clocks = <&sys_mclk>; }; }; }; @@@ -239,11 -239,6 +239,11 @@@ device-width = <1>; }; + nand@2,0 { + compatible = "fsl,ifc-nand"; + reg = <0x2 0x0 0x10000>; + }; + fpga: board-control@3,0 { #address-cells = <1>; #size-cells = <1>; @@@ -336,3 -331,19 +336,19 @@@ &uart1 { status = "okay"; }; + + &can0 { + status = "okay"; + }; + + &can1 { + status = "okay"; + }; + + &can2 { + status = "disabled"; + }; + + &can3 { + status = "disabled"; + }; diff --combined arch/arm/boot/dts/ls1021a-twr.dts index b186c370ad54,7202d9c504be..f0c949d74833 --- a/arch/arm/boot/dts/ls1021a-twr.dts +++ b/arch/arm/boot/dts/ls1021a-twr.dts @@@ -187,7 -187,7 +187,7 @@@ reg = <0x0a>; VDDA-supply = <&reg_3p3v>; VDDIO-supply = <&reg_3p3v>; - clocks = <&sys_mclk 1>; + clocks = <&sys_mclk>; }; }; @@@ -228,10 -228,6 +228,10 @@@ }; }; +&esdhc { + status = "okay"; +}; + &sai1 { status = "okay"; }; @@@ -247,3 -243,19 +247,19 @@@ &uart1 { status = "okay"; }; + + &can0 { + status = "okay"; + }; + + &can1 { + status = "okay"; + }; + + &can2 { + status = "disabled"; + }; + + &can3 { + status = "disabled"; + }; diff --combined arch/arm/boot/dts/ls1021a.dtsi index c5edfa9a68a6,7789031898b0..c31dad98f989 --- a/arch/arm/boot/dts/ls1021a.dtsi +++ b/arch/arm/boot/dts/ls1021a.dtsi @@@ -106,14 -106,6 +106,14 @@@ compatible = "arm,cortex-a7-pmu"; interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>; + interrupt-affinity = <&cpu0>, <&cpu1>; + }; + + reboot { + compatible = "syscon-reboot"; + regmap = <&dcfg>; + offset = <0xb0>; + mask = <0x02>; }; soc { @@@ -162,22 -154,8 +162,22 @@@ big-endian; }; + qspi: quadspi@1550000 { + compatible = "fsl,ls1021a-qspi"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x0 0x1550000 0x0 0x10000>, + <0x0 0x40000000 0x0 0x40000000>; + reg-names = "QuadSPI", "QuadSPI-memory"; + interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>; + clock-names = "qspi_en", "qspi"; + clocks = <&clockgen 4 1>, <&clockgen 4 1>; + big-endian; + status = "disabled"; + }; + esdhc: esdhc@1560000 { - compatible = "fsl,esdhc"; + compatible = "fsl,ls1021a-esdhc", "fsl,esdhc"; reg = <0x0 0x1560000 0x0 0x10000>; interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>; clock-frequency = <0>; @@@ -597,7 -575,7 +597,7 @@@ fsl,tclk-period = <5>; fsl,tmr-prsc = <2>; fsl,tmr-add = <0xaaaaaaab>; - fsl,tmr-fiper1 = <999999990>; + fsl,tmr-fiper1 = <999999995>; fsl,tmr-fiper2 = <99990>; fsl,max-adj = <499999999>; }; @@@ -690,7 -668,7 +690,7 @@@ }; }; - usb@8600000 { + usb2: usb@8600000 { compatible = "fsl-usb2-dr-v2.5", "fsl-usb2-dr"; reg = <0x0 0x8600000 0x0 0x1000>; interrupts = <GIC_SPI 171 IRQ_TYPE_LEVEL_HIGH>; @@@ -698,7 -676,7 +698,7 @@@ phy_type = "ulpi"; }; - usb3@3100000 { + usb3: usb3@3100000 { compatible = "snps,dwc3"; reg = <0x0 0x3100000 0x0 0x10000>; interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>; @@@ -752,5 -730,41 +752,41 @@@ <0000 0 0 3 &gic GIC_SPI 191 IRQ_TYPE_LEVEL_HIGH>, <0000 0 0 4 &gic GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>; }; + + can0: can@2a70000 { + compatible = "fsl,ls1021ar2-flexcan"; + reg = <0x0 0x2a70000 0x0 0x1000>; + interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clockgen 4 1>, <&clockgen 4 1>; + clock-names = "ipg", "per"; + big-endian; + }; + + can1: can@2a80000 { + compatible = "fsl,ls1021ar2-flexcan"; + reg = <0x0 0x2a80000 0x0 0x1000>; + interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clockgen 4 1>, <&clockgen 4 1>; + clock-names = "ipg", "per"; + big-endian; + }; + + can2: can@2a90000 { + compatible = "fsl,ls1021ar2-flexcan"; + reg = <0x0 0x2a90000 0x0 0x1000>; + interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clockgen 4 1>, <&clockgen 4 1>; + clock-names = "ipg", "per"; + big-endian; + }; + + can3: can@2aa0000 { + compatible = "fsl,ls1021ar2-flexcan"; + reg = <0x0 0x2aa0000 0x0 0x1000>; + interrupts = <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clockgen 4 1>, <&clockgen 4 1>; + clock-names = "ipg", "per"; + big-endian; + }; }; }; diff --combined drivers/net/ethernet/amazon/ena/ena_netdev.c index fbe21a817bd8,a6f283232cb7..6975150d144e --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@@ -75,9 -75,6 +75,9 @@@ static struct workqueue_struct *ena_wq MODULE_DEVICE_TABLE(pci, ena_pci_tbl); static int ena_rss_init_default(struct ena_adapter *adapter); +static void check_for_admin_com_state(struct ena_adapter *adapter); +static void ena_destroy_device(struct ena_adapter *adapter); +static int ena_restore_device(struct ena_adapter *adapter); static void ena_tx_timeout(struct net_device *dev) { @@@ -161,6 -158,8 +161,8 @@@ static void ena_init_io_rings_common(st ring->per_napi_packets = 0; ring->per_napi_bytes = 0; ring->cpu = 0; + ring->first_interrupt = false; + ring->no_interrupt_event_cnt = 0; u64_stats_init(&ring->syncp); } @@@ -1277,6 -1276,9 +1279,9 @@@ static irqreturn_t ena_intr_msix_io(in { struct ena_napi *ena_napi = data; + ena_napi->tx_ring->first_interrupt = true; + ena_napi->rx_ring->first_interrupt = true; + napi_schedule_irqoff(&ena_napi->napi); return IRQ_HANDLED; @@@ -1568,7 -1570,7 +1573,7 @@@ static int ena_rss_configure(struct ena static int ena_up_complete(struct ena_adapter *adapter) { - int rc, i; + int rc; rc = ena_rss_configure(adapter); if (rc) @@@ -1587,6 -1589,17 +1592,6 @@@ ena_napi_enable_all(adapter); - /* Enable completion queues interrupt */ - for (i = 0; i < adapter->num_queues; i++) - ena_unmask_interrupt(&adapter->tx_ring[i], - &adapter->rx_ring[i]); - - /* schedule napi in case we had pending packets - * from the last time we disable napi - */ - for (i = 0; i < adapter->num_queues; i++) - napi_schedule(&adapter->ena_napi[i].napi); - return 0; } @@@ -1723,7 -1736,7 +1728,7 @@@ create_err static int ena_up(struct ena_adapter *adapter) { - int rc; + int rc, i; netdev_dbg(adapter->netdev, "%s\n", __func__); @@@ -1766,17 -1779,6 +1771,17 @@@ set_bit(ENA_FLAG_DEV_UP, &adapter->flags); + /* Enable completion queues interrupt */ + for (i = 0; i < adapter->num_queues; i++) + ena_unmask_interrupt(&adapter->tx_ring[i], + &adapter->rx_ring[i]); + + /* schedule napi in case we had pending packets + * from the last time we disable napi + */ + for (i = 0; i < adapter->num_queues; i++) + napi_schedule(&adapter->ena_napi[i].napi); + return rc; err_up: @@@ -1887,17 -1889,6 +1892,17 @@@ static int ena_close(struct net_device if (test_bit(ENA_FLAG_DEV_UP, &adapter->flags)) ena_down(adapter); + /* Check for device status and issue reset if needed*/ + check_for_admin_com_state(adapter); + if (unlikely(test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags))) { + netif_err(adapter, ifdown, adapter->netdev, + "Destroy failure, restarting device\n"); + ena_dump_stats_to_dmesg(adapter); + /* rtnl lock already obtained in dev_ioctl() layer */ + ena_destroy_device(adapter); + ena_restore_device(adapter); + } + return 0; } @@@ -2558,12 -2549,11 +2563,12 @@@ static void ena_destroy_device(struct e ena_com_set_admin_running_state(ena_dev, false); - ena_close(netdev); + if (test_bit(ENA_FLAG_DEV_UP, &adapter->flags)) + ena_down(adapter); /* Before releasing the ENA resources, a device reset is required. * (to prevent the device from accessing them). - * In case the reset flag is set and the device is up, ena_close + * In case the reset flag is set and the device is up, ena_down() * already perform the reset, so it can be skipped. */ if (!(test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags) && dev_up)) @@@ -2663,8 -2653,32 +2668,32 @@@ static void ena_fw_reset_device(struct rtnl_unlock(); } - static int check_missing_comp_in_queue(struct ena_adapter *adapter, - struct ena_ring *tx_ring) + static int check_for_rx_interrupt_queue(struct ena_adapter *adapter, + struct ena_ring *rx_ring) + { + if (likely(rx_ring->first_interrupt)) + return 0; + + if (ena_com_cq_empty(rx_ring->ena_com_io_cq)) + return 0; + + rx_ring->no_interrupt_event_cnt++; + + if (rx_ring->no_interrupt_event_cnt == ENA_MAX_NO_INTERRUPT_ITERATIONS) { + netif_err(adapter, rx_err, adapter->netdev, + "Potential MSIX issue on Rx side Queue = %d. Reset the device\n", + rx_ring->qid); + adapter->reset_reason = ENA_REGS_RESET_MISS_INTERRUPT; + smp_mb__before_atomic(); + set_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags); + return -EIO; + } + + return 0; + } + + static int check_missing_comp_in_tx_queue(struct ena_adapter *adapter, + struct ena_ring *tx_ring) { struct ena_tx_buffer *tx_buf; unsigned long last_jiffies; @@@ -2674,8 -2688,27 +2703,27 @@@ for (i = 0; i < tx_ring->ring_size; i++) { tx_buf = &tx_ring->tx_buffer_info[i]; last_jiffies = tx_buf->last_jiffies; - if (unlikely(last_jiffies && - time_is_before_jiffies(last_jiffies + adapter->missing_tx_completion_to))) { + + if (last_jiffies == 0) + /* no pending Tx at this location */ + continue; + + if (unlikely(!tx_ring->first_interrupt && time_is_before_jiffies(last_jiffies + + 2 * adapter->missing_tx_completion_to))) { + /* If after graceful period interrupt is still not + * received, we schedule a reset + */ + netif_err(adapter, tx_err, adapter->netdev, + "Potential MSIX issue on Tx side Queue = %d. Reset the device\n", + tx_ring->qid); + adapter->reset_reason = ENA_REGS_RESET_MISS_INTERRUPT; + smp_mb__before_atomic(); + set_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags); + return -EIO; + } + + if (unlikely(time_is_before_jiffies(last_jiffies + + adapter->missing_tx_completion_to))) { if (!tx_buf->print_once) netif_notice(adapter, tx_err, adapter->netdev, "Found a Tx that wasn't completed on time, qid %d, index %d.\n", @@@ -2704,9 -2737,10 +2752,10 @@@ return rc; } - static void check_for_missing_tx_completions(struct ena_adapter *adapter) + static void check_for_missing_completions(struct ena_adapter *adapter) { struct ena_ring *tx_ring; + struct ena_ring *rx_ring; int i, budget, rc; /* Make sure the driver doesn't turn the device in other process */ @@@ -2725,8 -2759,13 +2774,13 @@@ for (i = adapter->last_monitored_tx_qid; i < adapter->num_queues; i++) { tx_ring = &adapter->tx_ring[i]; + rx_ring = &adapter->rx_ring[i]; + + rc = check_missing_comp_in_tx_queue(adapter, tx_ring); + if (unlikely(rc)) + return; - rc = check_missing_comp_in_queue(adapter, tx_ring); + rc = check_for_rx_interrupt_queue(adapter, rx_ring); if (unlikely(rc)) return; @@@ -2885,7 -2924,7 +2939,7 @@@ static void ena_timer_service(struct ti check_for_admin_com_state(adapter); - check_for_missing_tx_completions(adapter); + check_for_missing_completions(adapter); check_for_empty_rx_ring(adapter); diff --combined drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index d8424ed16c33,69d0b64e6986..1ff71825868c --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@@ -77,7 -77,8 +77,8 @@@ enum MEM_EDC1, MEM_MC, MEM_MC0 = MEM_MC, - MEM_MC1 + MEM_MC1, + MEM_HMA, }; enum { @@@ -344,6 -345,7 +345,6 @@@ struct adapter_params unsigned int sf_size; /* serial flash size in bytes */ unsigned int sf_nsec; /* # of flash sectors */ - unsigned int sf_fw_start; /* start of FW image in flash */ unsigned int fw_vers; /* firmware version */ unsigned int bs_vers; /* bootstrap version */ @@@ -1422,6 -1424,21 +1423,21 @@@ static inline void init_rspq(struct ada q->size = size; } + /** + * t4_is_inserted_mod_type - is a plugged in Firmware Module Type + * @fw_mod_type: the Firmware Mofule Type + * + * Return whether the Firmware Module Type represents a real Transceiver + * Module/Cable Module Type which has been inserted. + */ + static inline bool t4_is_inserted_mod_type(unsigned int fw_mod_type) + { + return (fw_mod_type != FW_PORT_MOD_TYPE_NONE && + fw_mod_type != FW_PORT_MOD_TYPE_NOTSUPPORTED && + fw_mod_type != FW_PORT_MOD_TYPE_UNKNOWN && + fw_mod_type != FW_PORT_MOD_TYPE_ERROR); + } + void t4_write_indirect(struct adapter *adap, unsigned int addr_reg, unsigned int data_reg, const u32 *vals, unsigned int nregs, unsigned int start_idx); @@@ -1511,6 -1528,7 +1527,7 @@@ int t4_init_portinfo(struct port_info * int port, int pf, int vf, u8 mac[]); int t4_port_init(struct adapter *adap, int mbox, int pf, int vf); void t4_fatal_err(struct adapter *adapter); + unsigned int t4_chip_rss_size(struct adapter *adapter); int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid, int start, int n, const u16 *rspq, unsigned int nrspq); int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode, @@@ -1652,7 -1670,7 +1669,7 @@@ int t4_ctrl_eq_free(struct adapter *ada unsigned int vf, unsigned int eqid); int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, unsigned int vf, unsigned int eqid); - int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox); + int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox, int ctxt_type); void t4_handle_get_port_info(struct port_info *pi, const __be64 *rpl); int t4_update_port_info(struct port_info *pi); int t4_get_link_params(struct port_info *pi, unsigned int *link_okp, @@@ -1695,6 -1713,9 +1712,9 @@@ void t4_uld_mem_free(struct adapter *ad int t4_uld_mem_alloc(struct adapter *adap); void t4_uld_clean_up(struct adapter *adap); void t4_register_netevent_notifier(void); + int t4_i2c_rd(struct adapter *adap, unsigned int mbox, int port, + unsigned int devid, unsigned int offset, + unsigned int len, u8 *buf); void free_rspq_fl(struct adapter *adap, struct sge_rspq *rq, struct sge_fl *fl); void free_tx_desc(struct adapter *adap, struct sge_txq *q, unsigned int n, bool unmap); diff --combined drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 375ef86a84da,f2a60e01d563..0e9f64a46ac5 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@@ -524,11 -524,14 +524,14 @@@ int t4_memory_rw(struct adapter *adap, * MEM_EDC1 = 1 * MEM_MC = 2 -- MEM_MC for chips with only 1 memory controller * MEM_MC1 = 3 -- for chips with 2 memory controllers (e.g. T5) + * MEM_HMA = 4 */ edc_size = EDRAM0_SIZE_G(t4_read_reg(adap, MA_EDRAM0_BAR_A)); - if (mtype != MEM_MC1) + if (mtype == MEM_HMA) { + memoffset = 2 * (edc_size * 1024 * 1024); + } else if (mtype != MEM_MC1) { memoffset = (mtype * (edc_size * 1024 * 1024)); - else { + } else { mc_size = EXT_MEM0_SIZE_G(t4_read_reg(adap, MA_EXT_MEMORY0_BAR_A)); memoffset = (MEM_MC0 * edc_size + mc_size) * 1024 * 1024; @@@ -2844,6 -2847,8 +2847,6 @@@ enum SF_RD_DATA_FAST = 0xb, /* read flash */ SF_RD_ID = 0x9f, /* read ID */ SF_ERASE_SECTOR = 0xd8, /* erase sector */ - - FW_MAX_SIZE = 16 * SF_SEC_SIZE, }; /** @@@ -3556,9 -3561,8 +3559,9 @@@ int t4_load_fw(struct adapter *adap, co const __be32 *p = (const __be32 *)fw_data; const struct fw_hdr *hdr = (const struct fw_hdr *)fw_data; unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec; - unsigned int fw_img_start = adap->params.sf_fw_start; - unsigned int fw_start_sec = fw_img_start / sf_sec_size; + unsigned int fw_start_sec = FLASH_FW_START_SEC; + unsigned int fw_size = FLASH_FW_MAX_SIZE; + unsigned int fw_start = FLASH_FW_START; if (!size) { dev_err(adap->pdev_dev, "FW image has no data\n"); @@@ -3574,9 -3578,9 +3577,9 @@@ "FW image size differs from size in FW header\n"); return -EINVAL; } - if (size > FW_MAX_SIZE) { + if (size > fw_size) { dev_err(adap->pdev_dev, "FW image too large, max is %u bytes\n", - FW_MAX_SIZE); + fw_size); return -EFBIG; } if (!t4_fw_matches_chip(adap, hdr)) @@@ -3603,11 -3607,11 +3606,11 @@@ */ memcpy(first_page, fw_data, SF_PAGE_SIZE); ((struct fw_hdr *)first_page)->fw_ver = cpu_to_be32(0xffffffff); - ret = t4_write_flash(adap, fw_img_start, SF_PAGE_SIZE, first_page); + ret = t4_write_flash(adap, fw_start, SF_PAGE_SIZE, first_page); if (ret) goto out; - addr = fw_img_start; + addr = fw_start; for (size -= SF_PAGE_SIZE; size; size -= SF_PAGE_SIZE) { addr += SF_PAGE_SIZE; fw_data += SF_PAGE_SIZE; @@@ -3617,7 -3621,7 +3620,7 @@@ } ret = t4_write_flash(adap, - fw_img_start + offsetof(struct fw_hdr, fw_ver), + fw_start + offsetof(struct fw_hdr, fw_ver), sizeof(hdr->fw_ver), (const u8 *)&hdr->fw_ver); out: if (ret) @@@ -4923,6 -4927,14 +4926,14 @@@ void t4_intr_disable(struct adapter *ad t4_set_reg_field(adapter, PL_INT_MAP0_A, 1 << pf, 0); } + unsigned int t4_chip_rss_size(struct adapter *adap) + { + if (CHELSIO_CHIP_VERSION(adap->params.chip) <= CHELSIO_T5) + return RSS_NENTRIES; + else + return T6_RSS_NENTRIES; + } + /** * t4_config_rss_range - configure a portion of the RSS mapping table * @adapter: the adapter @@@ -5061,10 -5073,11 +5072,11 @@@ static int rd_rss_row(struct adapter *a */ int t4_read_rss(struct adapter *adapter, u16 *map) { + int i, ret, nentries; u32 val; - int i, ret; - for (i = 0; i < RSS_NENTRIES / 2; ++i) { + nentries = t4_chip_rss_size(adapter); + for (i = 0; i < nentries / 2; ++i) { ret = rd_rss_row(adapter, i, &val); if (ret) return ret; @@@ -6071,6 -6084,7 +6083,7 @@@ const char *t4_get_port_type_descriptio "CR2_QSFP", "SFP28", "KR_SFP28", + "KR_XLAUI" }; if (port_type < ARRAY_SIZE(port_type_description)) @@@ -6526,18 -6540,21 +6539,21 @@@ void t4_sge_decode_idma_state(struct ad * t4_sge_ctxt_flush - flush the SGE context cache * @adap: the adapter * @mbox: mailbox to use for the FW command + * @ctx_type: Egress or Ingress * * Issues a FW command through the given mailbox to flush the * SGE context cache. */ - int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox) + int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox, int ctxt_type) { int ret; u32 ldst_addrspace; struct fw_ldst_cmd c; memset(&c, 0, sizeof(c)); - ldst_addrspace = FW_LDST_CMD_ADDRSPACE_V(FW_LDST_ADDRSPC_SGE_EGRC); + ldst_addrspace = FW_LDST_CMD_ADDRSPACE_V(ctxt_type == CTXT_EGRESS ? + FW_LDST_ADDRSPC_SGE_EGRC : + FW_LDST_ADDRSPC_SGE_INGC); c.op_to_addrspace = cpu_to_be32(FW_CMD_OP_V(FW_LDST_CMD) | FW_CMD_REQUEST_F | FW_CMD_READ_F | ldst_addrspace); @@@ -8491,22 -8508,6 +8507,6 @@@ found return 0; } - static void set_pcie_completion_timeout(struct adapter *adapter, u8 range) - { - u16 val; - u32 pcie_cap; - - pcie_cap = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP); - if (pcie_cap) { - pci_read_config_word(adapter->pdev, - pcie_cap + PCI_EXP_DEVCTL2, &val); - val &= ~PCI_EXP_DEVCTL2_COMP_TIMEOUT; - val |= range; - pci_write_config_word(adapter->pdev, - pcie_cap + PCI_EXP_DEVCTL2, val); - } - } - /** * t4_prep_adapter - prepare SW and HW for operation * @adapter: the adapter @@@ -8592,8 -8593,9 +8592,9 @@@ int t4_prep_adapter(struct adapter *ada adapter->params.portvec = 1; adapter->params.vpd.cclk = 50000; - /* Set pci completion timeout value to 4 seconds. */ - set_pcie_completion_timeout(adapter, 0xd); + /* Set PCIe completion timeout to 4 seconds. */ + pcie_capability_clear_and_set_word(adapter->pdev, PCI_EXP_DEVCTL2, + PCI_EXP_DEVCTL2_COMP_TIMEOUT, 0xd); return 0; } @@@ -9736,3 -9738,59 +9737,59 @@@ int t4_sched_params(struct adapter *ada return t4_wr_mbox_meat(adapter, adapter->mbox, &cmd, sizeof(cmd), NULL, 1); } + + /** + * t4_i2c_rd - read I2C data from adapter + * @adap: the adapter + * @port: Port number if per-port device; <0 if not + * @devid: per-port device ID or absolute device ID + * @offset: byte offset into device I2C space + * @len: byte length of I2C space data + * @buf: buffer in which to return I2C data + * + * Reads the I2C data from the indicated device and location. + */ + int t4_i2c_rd(struct adapter *adap, unsigned int mbox, int port, + unsigned int devid, unsigned int offset, + unsigned int len, u8 *buf) + { + struct fw_ldst_cmd ldst_cmd, ldst_rpl; + unsigned int i2c_max = sizeof(ldst_cmd.u.i2c.data); + int ret = 0; + + if (len > I2C_PAGE_SIZE) + return -EINVAL; + + /* Dont allow reads that spans multiple pages */ + if (offset < I2C_PAGE_SIZE && offset + len > I2C_PAGE_SIZE) + return -EINVAL; + + memset(&ldst_cmd, 0, sizeof(ldst_cmd)); + ldst_cmd.op_to_addrspace = + cpu_to_be32(FW_CMD_OP_V(FW_LDST_CMD) | + FW_CMD_REQUEST_F | + FW_CMD_READ_F | + FW_LDST_CMD_ADDRSPACE_V(FW_LDST_ADDRSPC_I2C)); + ldst_cmd.cycles_to_len16 = cpu_to_be32(FW_LEN16(ldst_cmd)); + ldst_cmd.u.i2c.pid = (port < 0 ? 0xff : port); + ldst_cmd.u.i2c.did = devid; + + while (len > 0) { + unsigned int i2c_len = (len < i2c_max) ? len : i2c_max; + + ldst_cmd.u.i2c.boffset = offset; + ldst_cmd.u.i2c.blen = i2c_len; + + ret = t4_wr_mbox(adap, mbox, &ldst_cmd, sizeof(ldst_cmd), + &ldst_rpl); + if (ret) + break; + + memcpy(buf, ldst_rpl.u.i2c.data, i2c_len); + offset += i2c_len; + buf += i2c_len; + len -= i2c_len; + } + + return ret; + } diff --combined drivers/net/ethernet/freescale/fec_main.c index 19f198e22e15,e17d10b8b041..feed3836685c --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@@ -1868,6 -1868,8 +1868,8 @@@ static int fec_enet_clk_enable(struct n ret = clk_prepare_enable(fep->clk_ref); if (ret) goto failed_clk_ref; + + phy_reset_after_clk_enable(ndev->phydev); } else { clk_disable_unprepare(fep->clk_ahb); clk_disable_unprepare(fep->clk_enet_out); @@@ -2840,6 -2842,7 +2842,7 @@@ fec_enet_open(struct net_device *ndev { struct fec_enet_private *fep = netdev_priv(ndev); int ret; + bool reset_again; ret = pm_runtime_get_sync(&fep->pdev->dev); if (ret < 0) @@@ -2850,6 -2853,17 +2853,17 @@@ if (ret) goto clk_enable; + /* During the first fec_enet_open call the PHY isn't probed at this + * point. Therefore the phy_reset_after_clk_enable() call within + * fec_enet_clk_enable() fails. As we need this reset in order to be + * sure the PHY is working correctly we check if we need to reset again + * later when the PHY is probed + */ + if (ndev->phydev && ndev->phydev->drv) + reset_again = false; + else + reset_again = true; + /* I should reset the ring buffers here, but I don't yet know * a simple way to do that. */ @@@ -2866,6 -2880,12 +2880,12 @@@ if (ret) goto err_enet_mii_probe; + /* Call phy_reset_after_clk_enable() again if it failed during + * phy_reset_after_clk_enable() before because the PHY wasn't probed. + */ + if (reset_again) + phy_reset_after_clk_enable(ndev->phydev); + if (fep->quirks & FEC_QUIRK_ERR006687) imx6q_cpuidle_fec_irqs_used(); @@@ -3469,10 -3489,6 +3489,10 @@@ fec_probe(struct platform_device *pdev goto failed_regulator; } } else { + if (PTR_ERR(fep->reg_phy) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto failed_regulator; + } fep->reg_phy = NULL; } @@@ -3560,7 -3576,6 +3580,7 @@@ failed_phy of_node_put(phy_node); failed_ioremap: free_netdev(ndev); + dev_id--; return ret; } diff --combined drivers/net/ethernet/mellanox/mlxsw/spectrum.c index c3837ca7a705,d373df7b11bd..aa96cc6a0fa6 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@@ -1571,14 -1571,11 +1571,11 @@@ mlxsw_sp_port_add_cls_matchall_mirror(s const struct tc_action *a, bool ingress) { - struct net *net = dev_net(mlxsw_sp_port->dev); enum mlxsw_sp_span_type span_type; struct mlxsw_sp_port *to_port; struct net_device *to_dev; - int ifindex; - ifindex = tcf_mirred_ifindex(a); - to_dev = __dev_get_by_index(net, ifindex); + to_dev = tcf_mirred_dev(a); if (!to_dev) { netdev_err(mlxsw_sp_port->dev, "Could not find requested device\n"); return -EINVAL; @@@ -1838,6 -1835,54 +1835,54 @@@ static int mlxsw_sp_setup_tc(struct net } } + + static int mlxsw_sp_feature_hw_tc(struct net_device *dev, bool enable) + { + struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); + + if (!enable && (mlxsw_sp_port->acl_rule_count || + !list_empty(&mlxsw_sp_port->mall_tc_list))) { + netdev_err(dev, "Active offloaded tc filters, can't turn hw_tc_offload off\n"); + return -EINVAL; + } + return 0; + } + + typedef int (*mlxsw_sp_feature_handler)(struct net_device *dev, bool enable); + + static int mlxsw_sp_handle_feature(struct net_device *dev, + netdev_features_t wanted_features, + netdev_features_t feature, + mlxsw_sp_feature_handler feature_handler) + { + netdev_features_t changes = wanted_features ^ dev->features; + bool enable = !!(wanted_features & feature); + int err; + + if (!(changes & feature)) + return 0; + + err = feature_handler(dev, enable); + if (err) { + netdev_err(dev, "%s feature %pNF failed, err %d\n", + enable ? "Enable" : "Disable", &feature, err); + return err; + } + + if (enable) + dev->features |= feature; + else + dev->features &= ~feature; + + return 0; + } + static int mlxsw_sp_set_features(struct net_device *dev, + netdev_features_t features) + { + return mlxsw_sp_handle_feature(dev, features, NETIF_F_HW_TC, + mlxsw_sp_feature_hw_tc); + } + static const struct net_device_ops mlxsw_sp_port_netdev_ops = { .ndo_open = mlxsw_sp_port_open, .ndo_stop = mlxsw_sp_port_stop, @@@ -1852,6 -1897,7 +1897,7 @@@ .ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid, .ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid, .ndo_get_phys_port_name = mlxsw_sp_port_get_phys_port_name, + .ndo_set_features = mlxsw_sp_set_features, }; static void mlxsw_sp_port_get_drvinfo(struct net_device *dev, @@@ -4376,10 -4422,7 +4422,10 @@@ static int mlxsw_sp_netdevice_port_uppe } if (!info->linking) break; - if (netdev_has_any_upper_dev(upper_dev)) { + if (netdev_has_any_upper_dev(upper_dev) && + (!netif_is_bridge_master(upper_dev) || + !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, + upper_dev))) { NL_SET_ERR_MSG(extack, "spectrum: Enslaving a port to a device that already has an upper device is not supported"); return -EINVAL; @@@ -4507,7 -4550,6 +4553,7 @@@ static int mlxsw_sp_netdevice_port_vlan u16 vid) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct netdev_notifier_changeupper_info *info = ptr; struct netlink_ext_ack *extack; struct net_device *upper_dev; @@@ -4524,10 -4566,7 +4570,10 @@@ } if (!info->linking) break; - if (netdev_has_any_upper_dev(upper_dev)) { + if (netdev_has_any_upper_dev(upper_dev) && + (!netif_is_bridge_master(upper_dev) || + !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, + upper_dev))) { NL_SET_ERR_MSG(extack, "spectrum: Enslaving a port to a device that already has an upper device is not supported"); return -EINVAL; } diff --combined drivers/net/ethernet/mellanox/mlxsw/spectrum.h index 05ce1befd9b3,a0adcd886589..346b8b688b6f --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@@ -270,6 -270,7 +270,7 @@@ struct mlxsw_sp_port struct mlxsw_sp_port_sample *sample; struct list_head vlans_list; struct mlxsw_sp_qdisc root_qdisc; + unsigned acl_rule_count; }; static inline bool @@@ -365,8 -366,6 +366,8 @@@ int mlxsw_sp_port_bridge_join(struct ml void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *brport_dev, struct net_device *br_dev); +bool mlxsw_sp_bridge_device_is_offloaded(const struct mlxsw_sp *mlxsw_sp, + const struct net_device *br_dev); /* spectrum.c */ int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port, diff --combined drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c index 5bbcaf8298f6,2fd8456999f6..b419229d7457 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c @@@ -241,13 -241,12 +241,13 @@@ static int dwmac4_rx_check_timestamp(vo u32 own, ctxt; int ret = 1; - own = p->des3 & RDES3_OWN; - ctxt = ((p->des3 & RDES3_CONTEXT_DESCRIPTOR) + own = le32_to_cpu(p->des3) & RDES3_OWN; + ctxt = ((le32_to_cpu(p->des3) & RDES3_CONTEXT_DESCRIPTOR) >> RDES3_CONTEXT_DESCRIPTOR_SHIFT); if (likely(!own && ctxt)) { - if ((p->des0 == 0xffffffff) && (p->des1 == 0xffffffff)) + if ((p->des0 == cpu_to_le32(0xffffffff)) && + (p->des1 == cpu_to_le32(0xffffffff))) /* Corrupted value */ ret = -EINVAL; else @@@ -266,7 -265,7 +266,7 @@@ static int dwmac4_wrback_get_rx_timesta int ret = -EINVAL; /* Get the status from normal w/b descriptor */ - if (likely(p->des3 & TDES3_RS1V)) { + if (likely(p->des3 & cpu_to_le32(TDES3_RS1V))) { if (likely(le32_to_cpu(p->des1) & RDES1_TIMESTAMP_AVAILABLE)) { int i = 0; @@@ -407,7 -406,7 +407,7 @@@ static void dwmac4_display_ring(void *h pr_info("%s descriptor ring:\n", rx ? "RX" : "TX"); for (i = 0; i < size; i++) { - pr_info("%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n", + pr_info("%03d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n", i, (unsigned int)virt_to_phys(p), le32_to_cpu(p->des0), le32_to_cpu(p->des1), le32_to_cpu(p->des2), le32_to_cpu(p->des3)); diff --combined drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index f1063dc00398,d9c98fd810bb..68ed903f0ac8 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@@ -1997,22 -1997,60 +1997,60 @@@ static void stmmac_set_dma_operation_mo static void stmmac_dma_interrupt(struct stmmac_priv *priv) { u32 tx_channel_count = priv->plat->tx_queues_to_use; - int status; + u32 rx_channel_count = priv->plat->rx_queues_to_use; + u32 channels_to_check = tx_channel_count > rx_channel_count ? + tx_channel_count : rx_channel_count; u32 chan; + bool poll_scheduled = false; + int status[channels_to_check]; + + /* Each DMA channel can be used for rx and tx simultaneously, yet + * napi_struct is embedded in struct stmmac_rx_queue rather than in a + * stmmac_channel struct. + * Because of this, stmmac_poll currently checks (and possibly wakes) + * all tx queues rather than just a single tx queue. + */ + for (chan = 0; chan < channels_to_check; chan++) + status[chan] = priv->hw->dma->dma_interrupt(priv->ioaddr, + &priv->xstats, + chan); - for (chan = 0; chan < tx_channel_count; chan++) { - struct stmmac_rx_queue *rx_q = &priv->rx_queue[chan]; + for (chan = 0; chan < rx_channel_count; chan++) { + if (likely(status[chan] & handle_rx)) { + struct stmmac_rx_queue *rx_q = &priv->rx_queue[chan]; - status = priv->hw->dma->dma_interrupt(priv->ioaddr, - &priv->xstats, chan); - if (likely((status & handle_rx)) || (status & handle_tx)) { if (likely(napi_schedule_prep(&rx_q->napi))) { stmmac_disable_dma_irq(priv, chan); __napi_schedule(&rx_q->napi); + poll_scheduled = true; } } + } - if (unlikely(status & tx_hard_error_bump_tc)) { + /* If we scheduled poll, we already know that tx queues will be checked. + * If we didn't schedule poll, see if any DMA channel (used by tx) has a + * completed transmission, if so, call stmmac_poll (once). + */ + if (!poll_scheduled) { + for (chan = 0; chan < tx_channel_count; chan++) { + if (status[chan] & handle_tx) { + /* It doesn't matter what rx queue we choose + * here. We use 0 since it always exists. + */ + struct stmmac_rx_queue *rx_q = + &priv->rx_queue[0]; + + if (likely(napi_schedule_prep(&rx_q->napi))) { + stmmac_disable_dma_irq(priv, chan); + __napi_schedule(&rx_q->napi); + } + break; + } + } + } + + for (chan = 0; chan < tx_channel_count; chan++) { + if (unlikely(status[chan] & tx_hard_error_bump_tc)) { /* Try to bump up the dma threshold on this failure */ if (unlikely(priv->xstats.threshold != SF_DMA_MODE) && (tc <= 256)) { @@@ -2029,7 -2067,7 +2067,7 @@@ chan); priv->xstats.threshold = tc; } - } else if (unlikely(status == tx_hard_error)) { + } else if (unlikely(status[chan] == tx_hard_error)) { stmmac_tx_err(priv, chan); } } @@@ -2533,7 -2571,7 +2571,7 @@@ static int stmmac_hw_setup(struct net_d } if (priv->hw->pcs && priv->hw->mac->pcs_ctrl_ane) - priv->hw->mac->pcs_ctrl_ane(priv->hw, 1, priv->hw->ps, 0); + priv->hw->mac->pcs_ctrl_ane(priv->ioaddr, 1, priv->hw->ps, 0); /* set TX and RX rings length */ stmmac_set_rings_length(priv); @@@ -3398,9 -3436,8 +3436,8 @@@ static int stmmac_rx(struct stmmac_pri if (netif_msg_rx_status(priv)) { netdev_dbg(priv->dev, "\tdesc: %p [entry %d] buff=0x%x\n", p, entry, des); - if (frame_len > ETH_FRAME_LEN) - netdev_dbg(priv->dev, "frame size %d, COE: %d\n", - frame_len, status); + netdev_dbg(priv->dev, "frame size %d, COE: %d\n", + frame_len, status); } /* The zero-copy is always used for all the sizes diff --combined drivers/net/geneve.c index 0a48b3073d3d,667c44f68dbc..195e0d0add8d --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@@ -825,13 -825,6 +825,13 @@@ static int geneve_xmit_skb(struct sk_bu if (IS_ERR(rt)) return PTR_ERR(rt); + if (skb_dst(skb)) { + int mtu = dst_mtu(&rt->dst) - sizeof(struct iphdr) - + GENEVE_BASE_HLEN - info->options_len - 14; + + skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu); + } + sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); if (geneve->collect_md) { tos = ip_tunnel_ecn_encap(key->tos, ip_hdr(skb), skb); @@@ -871,13 -864,6 +871,13 @@@ static int geneve6_xmit_skb(struct sk_b if (IS_ERR(dst)) return PTR_ERR(dst); + if (skb_dst(skb)) { + int mtu = dst_mtu(dst) - sizeof(struct ipv6hdr) - + GENEVE_BASE_HLEN - info->options_len - 14; + + skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu); + } + sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); if (geneve->collect_md) { prio = ip_tunnel_ecn_encap(key->tos, ip_hdr(skb), skb); @@@ -1652,19 -1638,16 +1652,16 @@@ static __net_init int geneve_init_net(s return 0; } - static void __net_exit geneve_exit_net(struct net *net) + static void geneve_destroy_tunnels(struct net *net, struct list_head *head) { struct geneve_net *gn = net_generic(net, geneve_net_id); struct geneve_dev *geneve, *next; struct net_device *dev, *aux; - LIST_HEAD(list); - - rtnl_lock(); /* gather any geneve devices that were moved into this ns */ for_each_netdev_safe(net, dev, aux) if (dev->rtnl_link_ops == &geneve_link_ops) - unregister_netdevice_queue(dev, &list); + unregister_netdevice_queue(dev, head); /* now gather any other geneve devices that were created in this ns */ list_for_each_entry_safe(geneve, next, &gn->geneve_list, next) { @@@ -1672,18 -1655,29 +1669,29 @@@ * to the list by the previous loop. */ if (!net_eq(dev_net(geneve->dev), net)) - unregister_netdevice_queue(geneve->dev, &list); + unregister_netdevice_queue(geneve->dev, head); } + WARN_ON_ONCE(!list_empty(&gn->sock_list)); + } + + static void __net_exit geneve_exit_batch_net(struct list_head *net_list) + { + struct net *net; + LIST_HEAD(list); + + rtnl_lock(); + list_for_each_entry(net, net_list, exit_list) + geneve_destroy_tunnels(net, &list); + /* unregister the devices gathered above */ unregister_netdevice_many(&list); rtnl_unlock(); - WARN_ON_ONCE(!list_empty(&gn->sock_list)); } static struct pernet_operations geneve_net_ops = { .init = geneve_init_net, - .exit = geneve_exit_net, + .exit_batch = geneve_exit_batch_net, .id = &geneve_net_id, .size = sizeof(struct geneve_net), }; diff --combined drivers/net/phy/phylink.c index 150cd95a6e1e,d1f9466f2fbf..4e8c459bf062 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@@ -36,7 -36,11 +36,11 @@@ enum PHYLINK_DISABLE_LINK, }; + /** + * struct phylink - internal data type for phylink + */ struct phylink { + /* private: */ struct net_device *netdev; const struct phylink_mac_ops *ops; @@@ -50,6 -54,8 +54,8 @@@ /* The link configuration settings */ struct phylink_link_state link_config; struct gpio_desc *link_gpio; + void (*get_fixed_state)(struct net_device *dev, + struct phylink_link_state *s); struct mutex state_mutex; struct phylink_link_state phy_state; @@@ -87,6 -93,13 +93,13 @@@ static inline bool linkmode_empty(cons return bitmap_empty(src, __ETHTOOL_LINK_MODE_MASK_NBITS); } + /** + * phylink_set_port_modes() - set the port type modes in the ethtool mask + * @mask: ethtool link mode mask + * + * Sets all the port type modes in the ethtool mask. MAC drivers should + * use this in their 'validate' callback. + */ void phylink_set_port_modes(unsigned long *mask) { phylink_set(mask, TP); @@@ -117,8 -130,7 +130,7 @@@ static const char *phylink_an_mode_str( static const char *modestr[] = { [MLO_AN_PHY] = "phy", [MLO_AN_FIXED] = "fixed", - [MLO_AN_SGMII] = "SGMII", - [MLO_AN_8023Z] = "802.3z", + [MLO_AN_INBAND] = "inband", }; return mode < ARRAY_SIZE(modestr) ? modestr[mode] : "unknown"; @@@ -132,59 -144,64 +144,64 @@@ static int phylink_validate(struct phyl return phylink_is_empty_linkmode(supported) ? -EINVAL : 0; } - static int phylink_parse_fixedlink(struct phylink *pl, struct device_node *np) + static int phylink_parse_fixedlink(struct phylink *pl, + struct fwnode_handle *fwnode) { - struct device_node *fixed_node; + struct fwnode_handle *fixed_node; const struct phy_setting *s; struct gpio_desc *desc; - const __be32 *fixed_prop; u32 speed; - int ret, len; + int ret; - fixed_node = of_get_child_by_name(np, "fixed-link"); + fixed_node = fwnode_get_named_child_node(fwnode, "fixed-link"); if (fixed_node) { - ret = of_property_read_u32(fixed_node, "speed", &speed); + ret = fwnode_property_read_u32(fixed_node, "speed", &speed); pl->link_config.speed = speed; pl->link_config.duplex = DUPLEX_HALF; - if (of_property_read_bool(fixed_node, "full-duplex")) + if (fwnode_property_read_bool(fixed_node, "full-duplex")) pl->link_config.duplex = DUPLEX_FULL; /* We treat the "pause" and "asym-pause" terminology as * defining the link partner's ability. */ - if (of_property_read_bool(fixed_node, "pause")) + if (fwnode_property_read_bool(fixed_node, "pause")) pl->link_config.pause |= MLO_PAUSE_SYM; - if (of_property_read_bool(fixed_node, "asym-pause")) + if (fwnode_property_read_bool(fixed_node, "asym-pause")) pl->link_config.pause |= MLO_PAUSE_ASYM; if (ret == 0) { - desc = fwnode_get_named_gpiod(&fixed_node->fwnode, - "link-gpios", 0, - GPIOD_IN, "?"); + desc = fwnode_get_named_gpiod(fixed_node, "link-gpios", + 0, GPIOD_IN, "?"); if (!IS_ERR(desc)) pl->link_gpio = desc; else if (desc == ERR_PTR(-EPROBE_DEFER)) ret = -EPROBE_DEFER; } - of_node_put(fixed_node); + fwnode_handle_put(fixed_node); if (ret) return ret; } else { - fixed_prop = of_get_property(np, "fixed-link", &len); - if (!fixed_prop) { + u32 prop[5]; + + ret = fwnode_property_read_u32_array(fwnode, "fixed-link", + NULL, 0); + if (ret != ARRAY_SIZE(prop)) { netdev_err(pl->netdev, "broken fixed-link?\n"); return -EINVAL; } - if (len == 5 * sizeof(*fixed_prop)) { - pl->link_config.duplex = be32_to_cpu(fixed_prop[1]) ? + + ret = fwnode_property_read_u32_array(fwnode, "fixed-link", + prop, ARRAY_SIZE(prop)); + if (!ret) { + pl->link_config.duplex = prop[1] ? DUPLEX_FULL : DUPLEX_HALF; - pl->link_config.speed = be32_to_cpu(fixed_prop[2]); - if (be32_to_cpu(fixed_prop[3])) + pl->link_config.speed = prop[2]; + if (prop[3]) pl->link_config.pause |= MLO_PAUSE_SYM; - if (be32_to_cpu(fixed_prop[4])) + if (prop[4]) pl->link_config.pause |= MLO_PAUSE_ASYM; } } @@@ -220,17 -237,17 +237,17 @@@ return 0; } - static int phylink_parse_mode(struct phylink *pl, struct device_node *np) + static int phylink_parse_mode(struct phylink *pl, struct fwnode_handle *fwnode) { - struct device_node *dn; + struct fwnode_handle *dn; const char *managed; - dn = of_get_child_by_name(np, "fixed-link"); - if (dn || of_find_property(np, "fixed-link", NULL)) + dn = fwnode_get_named_child_node(fwnode, "fixed-link"); + if (dn || fwnode_property_present(fwnode, "fixed-link")) pl->link_an_mode = MLO_AN_FIXED; - of_node_put(dn); + fwnode_handle_put(dn); - if (of_property_read_string(np, "managed", &managed) == 0 && + if (fwnode_property_read_string(fwnode, "managed", &managed) == 0 && strcmp(managed, "in-band-status") == 0) { if (pl->link_an_mode == MLO_AN_FIXED) { netdev_err(pl->netdev, @@@ -244,6 -261,7 +261,7 @@@ phylink_set(pl->supported, Asym_Pause); phylink_set(pl->supported, Pause); pl->link_config.an_enabled = true; + pl->link_an_mode = MLO_AN_INBAND; switch (pl->link_config.interface) { case PHY_INTERFACE_MODE_SGMII: @@@ -253,17 -271,14 +271,14 @@@ phylink_set(pl->supported, 100baseT_Full); phylink_set(pl->supported, 1000baseT_Half); phylink_set(pl->supported, 1000baseT_Full); - pl->link_an_mode = MLO_AN_SGMII; break; case PHY_INTERFACE_MODE_1000BASEX: phylink_set(pl->supported, 1000baseX_Full); - pl->link_an_mode = MLO_AN_8023Z; break; case PHY_INTERFACE_MODE_2500BASEX: phylink_set(pl->supported, 2500baseX_Full); - pl->link_an_mode = MLO_AN_8023Z; break; case PHY_INTERFACE_MODE_10GKR: @@@ -280,7 -295,6 +295,6 @@@ phylink_set(pl->supported, 10000baseLR_Full); phylink_set(pl->supported, 10000baseLRM_Full); phylink_set(pl->supported, 10000baseER_Full); - pl->link_an_mode = MLO_AN_SGMII; break; default: @@@ -320,8 -334,7 +334,7 @@@ static void phylink_mac_config(struct p static void phylink_mac_an_restart(struct phylink *pl) { if (pl->link_config.an_enabled && - (pl->link_config.interface == PHY_INTERFACE_MODE_1000BASEX || - pl->link_config.interface == PHY_INTERFACE_MODE_2500BASEX)) + phy_interface_mode_is_8023z(pl->link_config.interface)) pl->ops->mac_an_restart(pl->netdev); } @@@ -339,12 -352,14 +352,14 @@@ static int phylink_get_mac_state(struc } /* The fixed state is... fixed except for the link state, - * which may be determined by a GPIO. + * which may be determined by a GPIO or a callback. */ static void phylink_get_fixed_state(struct phylink *pl, struct phylink_link_state *state) { *state = pl->link_config; - if (pl->link_gpio) + if (pl->get_fixed_state) + pl->get_fixed_state(pl->netdev, state); + else if (pl->link_gpio) state->link = !!gpiod_get_value(pl->link_gpio); } @@@ -423,7 -438,7 +438,7 @@@ static void phylink_resolve(struct work phylink_mac_config(pl, &link_state); break; - case MLO_AN_SGMII: + case MLO_AN_INBAND: phylink_get_mac_state(pl, &link_state); if (pl->phydev) { bool changed = false; @@@ -449,10 -464,6 +464,6 @@@ } } break; - - case MLO_AN_8023Z: - phylink_get_mac_state(pl, &link_state); - break; } } @@@ -489,15 -500,27 +500,27 @@@ static void phylink_run_resolve(struct static const struct sfp_upstream_ops sfp_phylink_ops; - static int phylink_register_sfp(struct phylink *pl, struct device_node *np) + static int phylink_register_sfp(struct phylink *pl, + struct fwnode_handle *fwnode) { - struct device_node *sfp_np; + struct fwnode_reference_args ref; + int ret; - sfp_np = of_parse_phandle(np, "sfp", 0); - if (!sfp_np) + if (!fwnode) return 0; - pl->sfp_bus = sfp_register_upstream(sfp_np, pl->netdev, pl, + ret = fwnode_property_get_reference_args(fwnode, "sfp", NULL, + 0, 0, &ref); + if (ret < 0) { + if (ret == -ENOENT) + return 0; + + netdev_err(pl->netdev, "unable to parse \"sfp\" node: %d\n", + ret); + return ret; + } + + pl->sfp_bus = sfp_register_upstream(ref.fwnode, pl->netdev, pl, &sfp_phylink_ops); if (!pl->sfp_bus) return -ENOMEM; @@@ -505,7 -528,22 +528,22 @@@ return 0; } - struct phylink *phylink_create(struct net_device *ndev, struct device_node *np, + /** + * phylink_create() - create a phylink instance + * @ndev: a pointer to the &struct net_device + * @fwnode: a pointer to a &struct fwnode_handle describing the network + * interface + * @iface: the desired link mode defined by &typedef phy_interface_t + * @ops: a pointer to a &struct phylink_mac_ops for the MAC. + * + * Create a new phylink instance, and parse the link parameters found in @np. + * This will parse in-band modes, fixed-link or SFP configuration. + * + * Returns a pointer to a &struct phylink, or an error-pointer value. Users + * must use IS_ERR() to check for errors from this function. + */ + struct phylink *phylink_create(struct net_device *ndev, + struct fwnode_handle *fwnode, phy_interface_t iface, const struct phylink_mac_ops *ops) { @@@ -521,7 -559,10 +559,10 @@@ pl->netdev = ndev; pl->phy_state.interface = iface; pl->link_interface = iface; - pl->link_port = PORT_MII; + if (iface == PHY_INTERFACE_MODE_MOCA) + pl->link_port = PORT_BNC; + else + pl->link_port = PORT_MII; pl->link_config.interface = iface; pl->link_config.pause = MLO_PAUSE_AN; pl->link_config.speed = SPEED_UNKNOWN; @@@ -534,21 -575,21 +575,21 @@@ linkmode_copy(pl->link_config.advertising, pl->supported); phylink_validate(pl, pl->supported, &pl->link_config); - ret = phylink_parse_mode(pl, np); + ret = phylink_parse_mode(pl, fwnode); if (ret < 0) { kfree(pl); return ERR_PTR(ret); } if (pl->link_an_mode == MLO_AN_FIXED) { - ret = phylink_parse_fixedlink(pl, np); + ret = phylink_parse_fixedlink(pl, fwnode); if (ret < 0) { kfree(pl); return ERR_PTR(ret); } } - ret = phylink_register_sfp(pl, np); + ret = phylink_register_sfp(pl, fwnode); if (ret < 0) { kfree(pl); return ERR_PTR(ret); @@@ -558,6 -599,13 +599,13 @@@ } EXPORT_SYMBOL_GPL(phylink_create); + /** + * phylink_destroy() - cleanup and destroy the phylink instance + * @pl: a pointer to a &struct phylink returned from phylink_create() + * + * Destroy a phylink instance. Any PHY that has been attached must have been + * cleaned up via phylink_disconnect_phy() prior to calling this function. + */ void phylink_destroy(struct phylink *pl) { if (pl->sfp_bus) @@@ -654,10 -702,39 +702,39 @@@ static int phylink_bringup_phy(struct p return 0; } + /** + * phylink_connect_phy() - connect a PHY to the phylink instance + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @phy: a pointer to a &struct phy_device. + * + * Connect @phy to the phylink instance specified by @pl by calling + * phy_attach_direct(). Configure the @phy according to the MAC driver's + * capabilities, start the PHYLIB state machine and enable any interrupts + * that the PHY supports. + * + * This updates the phylink's ethtool supported and advertising link mode + * masks. + * + * Returns 0 on success or a negative errno. + */ int phylink_connect_phy(struct phylink *pl, struct phy_device *phy) { int ret; + if (WARN_ON(pl->link_an_mode == MLO_AN_FIXED || + (pl->link_an_mode == MLO_AN_INBAND && + phy_interface_mode_is_8023z(pl->link_interface)))) + return -EINVAL; + + if (pl->phydev) + return -EBUSY; + + /* Use PHY device/driver interface */ + if (pl->link_interface == PHY_INTERFACE_MODE_NA) { + pl->link_interface = phy->interface; + pl->link_config.interface = pl->link_interface; + } + ret = phy_attach_direct(pl->netdev, phy, 0, pl->link_interface); if (ret) return ret; @@@ -670,14 -747,29 +747,29 @@@ } EXPORT_SYMBOL_GPL(phylink_connect_phy); - int phylink_of_phy_connect(struct phylink *pl, struct device_node *dn) + /** + * phylink_of_phy_connect() - connect the PHY specified in the DT mode. + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @dn: a pointer to a &struct device_node. + * @flags: PHY-specific flags to communicate to the PHY device driver + * + * Connect the phy specified in the device node @dn to the phylink instance + * specified by @pl. Actions specified in phylink_connect_phy() will be + * performed. + * + * Returns 0 on success or a negative errno. + */ + int phylink_of_phy_connect(struct phylink *pl, struct device_node *dn, + u32 flags) { struct device_node *phy_node; struct phy_device *phy_dev; int ret; - /* Fixed links are handled without needing a PHY */ - if (pl->link_an_mode == MLO_AN_FIXED) + /* Fixed links and 802.3z are handled without needing a PHY */ + if (pl->link_an_mode == MLO_AN_FIXED || + (pl->link_an_mode == MLO_AN_INBAND && + phy_interface_mode_is_8023z(pl->link_interface))) return 0; phy_node = of_parse_phandle(dn, "phy-handle", 0); @@@ -687,14 -779,13 +779,13 @@@ phy_node = of_parse_phandle(dn, "phy-device", 0); if (!phy_node) { - if (pl->link_an_mode == MLO_AN_PHY) { - netdev_err(pl->netdev, "unable to find PHY node\n"); + if (pl->link_an_mode == MLO_AN_PHY) return -ENODEV; - } return 0; } - phy_dev = of_phy_attach(pl->netdev, phy_node, 0, pl->link_interface); + phy_dev = of_phy_attach(pl->netdev, phy_node, flags, + pl->link_interface); /* We're done with the phy_node handle */ of_node_put(phy_node); @@@ -709,11 -800,18 +800,18 @@@ } EXPORT_SYMBOL_GPL(phylink_of_phy_connect); + /** + * phylink_disconnect_phy() - disconnect any PHY attached to the phylink + * instance. + * @pl: a pointer to a &struct phylink returned from phylink_create() + * + * Disconnect any current PHY from the phylink instance described by @pl. + */ void phylink_disconnect_phy(struct phylink *pl) { struct phy_device *phy; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); phy = pl->phydev; if (phy) { @@@ -730,6 -828,40 +828,40 @@@ } EXPORT_SYMBOL_GPL(phylink_disconnect_phy); + /** + * phylink_fixed_state_cb() - allow setting a fixed link callback + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @cb: callback to execute to determine the fixed link state. + * + * The MAC driver should call this driver when the state of its link + * can be determined through e.g: an out of band MMIO register. + */ + int phylink_fixed_state_cb(struct phylink *pl, + void (*cb)(struct net_device *dev, + struct phylink_link_state *state)) + { + /* It does not make sense to let the link be overriden unless we use + * MLO_AN_FIXED + */ + if (pl->link_an_mode != MLO_AN_FIXED) + return -EINVAL; + + mutex_lock(&pl->state_mutex); + pl->get_fixed_state = cb; + mutex_unlock(&pl->state_mutex); + + return 0; + } + EXPORT_SYMBOL_GPL(phylink_fixed_state_cb); + + /** + * phylink_mac_change() - notify phylink of a change in MAC state + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @up: indicates whether the link is currently up. + * + * The MAC driver should call this driver when the state of its link + * changes (eg, link failure, new negotiation results, etc.) + */ void phylink_mac_change(struct phylink *pl, bool up) { if (!up) @@@ -739,9 -871,17 +871,17 @@@ } EXPORT_SYMBOL_GPL(phylink_mac_change); + /** + * phylink_start() - start a phylink instance + * @pl: a pointer to a &struct phylink returned from phylink_create() + * + * Start the phylink instance specified by @pl, configuring the MAC for the + * desired link mode(s) and negotiation style. This should be called from the + * network device driver's &struct net_device_ops ndo_open() method. + */ void phylink_start(struct phylink *pl) { - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); netdev_info(pl->netdev, "configuring for %s/%s link mode\n", phylink_an_mode_str(pl->link_an_mode), @@@ -754,6 -894,12 +894,12 @@@ phylink_resolve_flow(pl, &pl->link_config); phylink_mac_config(pl, &pl->link_config); + /* Restart autonegotiation if using 802.3z to ensure that the link + * parameters are properly negotiated. This is necessary for DSA + * switches using 802.3z negotiation to ensure they see our modes. + */ + phylink_mac_an_restart(pl); + clear_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state); phylink_run_resolve(pl); @@@ -764,9 -910,18 +910,18 @@@ } EXPORT_SYMBOL_GPL(phylink_start); + /** + * phylink_stop() - stop a phylink instance + * @pl: a pointer to a &struct phylink returned from phylink_create() + * + * Stop the phylink instance specified by @pl. This should be called from the + * network device driver's &struct net_device_ops ndo_stop() method. The + * network device's carrier state should not be changed prior to calling this + * function. + */ void phylink_stop(struct phylink *pl) { - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) phy_stop(pl->phydev); @@@ -779,9 -934,18 +934,18 @@@ } EXPORT_SYMBOL_GPL(phylink_stop); + /** + * phylink_ethtool_get_wol() - get the wake on lan parameters for the PHY + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @wol: a pointer to &struct ethtool_wolinfo to hold the read parameters + * + * Read the wake on lan parameters from the PHY attached to the phylink + * instance specified by @pl. If no PHY is currently attached, report no + * support for wake on lan. + */ void phylink_ethtool_get_wol(struct phylink *pl, struct ethtool_wolinfo *wol) { - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); wol->supported = 0; wol->wolopts = 0; @@@ -791,11 -955,22 +955,22 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_get_wol); + /** + * phylink_ethtool_set_wol() - set wake on lan parameters + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @wol: a pointer to &struct ethtool_wolinfo for the desired parameters + * + * Set the wake on lan parameters for the PHY attached to the phylink + * instance specified by @pl. If no PHY is attached, returns %EOPNOTSUPP + * error. + * + * Returns zero on success or negative errno code. + */ int phylink_ethtool_set_wol(struct phylink *pl, struct ethtool_wolinfo *wol) { int ret = -EOPNOTSUPP; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) ret = phy_ethtool_set_wol(pl->phydev, wol); @@@ -826,12 -1001,21 +1001,21 @@@ static void phylink_get_ksettings(cons AUTONEG_DISABLE; } + /** + * phylink_ethtool_ksettings_get() - get the current link settings + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @kset: a pointer to a &struct ethtool_link_ksettings to hold link settings + * + * Read the current link settings for the phylink instance specified by @pl. + * This will be the link settings read from the MAC, PHY or fixed link + * settings depending on the current negotiation mode. + */ int phylink_ethtool_ksettings_get(struct phylink *pl, struct ethtool_link_ksettings *kset) { struct phylink_link_state link_state; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) { phy_ethtool_ksettings_get(pl->phydev, kset); @@@ -851,14 -1035,13 +1035,13 @@@ phylink_get_ksettings(&link_state, kset); break; - case MLO_AN_SGMII: + case MLO_AN_INBAND: /* If there is a phy attached, then use the reported * settings from the phy with no modification. */ if (pl->phydev) break; - case MLO_AN_8023Z: phylink_get_mac_state(pl, &link_state); /* The MAC is reporting the link results from its own PCS @@@ -873,6 -1056,11 +1056,11 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_ksettings_get); + /** + * phylink_ethtool_ksettings_set() - set the link settings + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @kset: a pointer to a &struct ethtool_link_ksettings for the desired modes + */ int phylink_ethtool_ksettings_set(struct phylink *pl, const struct ethtool_link_ksettings *kset) { @@@ -880,7 -1068,7 +1068,7 @@@ struct phylink_link_state config; int ret; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (kset->base.autoneg != AUTONEG_DISABLE && kset->base.autoneg != AUTONEG_ENABLE) @@@ -967,11 -1155,22 +1155,22 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_ksettings_set); + /** + * phylink_ethtool_nway_reset() - restart negotiation + * @pl: a pointer to a &struct phylink returned from phylink_create() + * + * Restart negotiation for the phylink instance specified by @pl. This will + * cause any attached phy to restart negotiation with the link partner, and + * if the MAC is in a BaseX mode, the MAC will also be requested to restart + * negotiation. + * + * Returns zero on success, or negative error code. + */ int phylink_ethtool_nway_reset(struct phylink *pl) { int ret = 0; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) ret = phy_restart_aneg(pl->phydev); @@@ -981,10 -1180,15 +1180,15 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_nway_reset); + /** + * phylink_ethtool_get_pauseparam() - get the current pause parameters + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @pause: a pointer to a &struct ethtool_pauseparam + */ void phylink_ethtool_get_pauseparam(struct phylink *pl, struct ethtool_pauseparam *pause) { - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); pause->autoneg = !!(pl->link_config.pause & MLO_PAUSE_AN); pause->rx_pause = !!(pl->link_config.pause & MLO_PAUSE_RX); @@@ -992,12 -1196,17 +1196,17 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_get_pauseparam); + /** + * phylink_ethtool_set_pauseparam() - set the current pause parameters + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @pause: a pointer to a &struct ethtool_pauseparam + */ int phylink_ethtool_set_pauseparam(struct phylink *pl, struct ethtool_pauseparam *pause) { struct phylink_link_state *config = &pl->link_config; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (!phylink_test(pl->supported, Pause) && !phylink_test(pl->supported, Asym_Pause)) @@@ -1030,8 -1239,7 +1239,7 @@@ phylink_mac_config(pl, config); break; - case MLO_AN_SGMII: - case MLO_AN_8023Z: + case MLO_AN_INBAND: phylink_mac_config(pl, config); phylink_mac_an_restart(pl); break; @@@ -1070,24 -1278,21 +1278,21 @@@ int phylink_ethtool_get_module_eeprom(s } EXPORT_SYMBOL_GPL(phylink_ethtool_get_module_eeprom); - int phylink_init_eee(struct phylink *pl, bool clk_stop_enable) - { - int ret = -EPROTONOSUPPORT; - - WARN_ON(!lockdep_rtnl_is_held()); - - if (pl->phydev) - ret = phy_init_eee(pl->phydev, clk_stop_enable); - - return ret; - } - EXPORT_SYMBOL_GPL(phylink_init_eee); - + /** + * phylink_ethtool_get_eee_err() - read the energy efficient ethernet error + * counter + * @pl: a pointer to a &struct phylink returned from phylink_create(). + * + * Read the Energy Efficient Ethernet error counter from the PHY associated + * with the phylink instance specified by @pl. + * + * Returns positive error counter value, or negative error code. + */ int phylink_get_eee_err(struct phylink *pl) { int ret = 0; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) ret = phy_get_eee_err(pl->phydev); @@@ -1096,11 -1301,16 +1301,16 @@@ } EXPORT_SYMBOL_GPL(phylink_get_eee_err); + /** + * phylink_ethtool_get_eee() - read the energy efficient ethernet parameters + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @eee: a pointer to a &struct ethtool_eee for the read parameters + */ int phylink_ethtool_get_eee(struct phylink *pl, struct ethtool_eee *eee) { int ret = -EOPNOTSUPP; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) ret = phy_ethtool_get_eee(pl->phydev, eee); @@@ -1109,11 -1319,16 +1319,16 @@@ } EXPORT_SYMBOL_GPL(phylink_ethtool_get_eee); + /** + * phylink_ethtool_set_eee() - set the energy efficient ethernet parameters + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @eee: a pointer to a &struct ethtool_eee for the desired parameters + */ int phylink_ethtool_set_eee(struct phylink *pl, struct ethtool_eee *eee) { int ret = -EOPNOTSUPP; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) ret = phy_ethtool_set_eee(pl->phydev, eee); @@@ -1248,9 -1463,7 +1463,7 @@@ static int phylink_mii_read(struct phyl case MLO_AN_PHY: return -EOPNOTSUPP; - case MLO_AN_SGMII: - /* No phy, fall through to 8023z method */ - case MLO_AN_8023Z: + case MLO_AN_INBAND: if (phy_id == 0) { val = phylink_get_mac_state(pl, &state); if (val < 0) @@@ -1275,24 -1488,40 +1488,40 @@@ static int phylink_mii_write(struct phy case MLO_AN_PHY: return -EOPNOTSUPP; - case MLO_AN_SGMII: - /* No phy, fall through to 8023z method */ - case MLO_AN_8023Z: + case MLO_AN_INBAND: break; } return 0; } + /** + * phylink_mii_ioctl() - generic mii ioctl interface + * @pl: a pointer to a &struct phylink returned from phylink_create() + * @ifr: a pointer to a &struct ifreq for socket ioctls + * @cmd: ioctl cmd to execute + * + * Perform the specified MII ioctl on the PHY attached to the phylink instance + * specified by @pl. If no PHY is attached, emulate the presence of the PHY. + * + * Returns: zero on success or negative error code. + * + * %SIOCGMIIPHY: + * read register from the current PHY. + * %SIOCGMIIREG: + * read register from the specified PHY. + * %SIOCSMIIREG: + * set a register on the specified PHY. + */ int phylink_mii_ioctl(struct phylink *pl, struct ifreq *ifr, int cmd) { struct mii_ioctl_data *mii = if_mii(ifr); int ret; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); if (pl->phydev) { - /* PHYs only exist for MLO_AN_PHY and MLO_AN_SGMII */ + /* PHYs only exist for MLO_AN_PHY and SGMII */ switch (cmd) { case SIOCGMIIPHY: mii->phy_id = pl->phydev->mdio.addr; @@@ -1349,7 -1578,7 +1578,7 @@@ static int phylink_sfp_module_insert(vo __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, }; struct phylink_link_state config; phy_interface_t iface; - int mode, ret = 0; + int ret = 0; bool changed; u8 port; @@@ -1357,14 -1586,13 +1586,13 @@@ port = sfp_parse_port(pl->sfp_bus, id, support); iface = sfp_parse_interface(pl->sfp_bus, id); - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); switch (iface) { case PHY_INTERFACE_MODE_SGMII: - mode = MLO_AN_SGMII; - break; case PHY_INTERFACE_MODE_1000BASEX: - mode = MLO_AN_8023Z; + case PHY_INTERFACE_MODE_2500BASEX: + case PHY_INTERFACE_MODE_10GKR: break; default: return -EINVAL; @@@ -1382,16 -1610,18 +1610,18 @@@ ret = phylink_validate(pl, support, &config); if (ret) { netdev_err(pl->netdev, "validation of %s/%s with support %*pb failed: %d\n", - phylink_an_mode_str(mode), phy_modes(config.interface), + phylink_an_mode_str(MLO_AN_INBAND), + phy_modes(config.interface), __ETHTOOL_LINK_MODE_MASK_NBITS, support, ret); return ret; } netdev_dbg(pl->netdev, "requesting link mode %s/%s with support %*pb\n", - phylink_an_mode_str(mode), phy_modes(config.interface), + phylink_an_mode_str(MLO_AN_INBAND), + phy_modes(config.interface), __ETHTOOL_LINK_MODE_MASK_NBITS, support); - if (mode == MLO_AN_8023Z && pl->phydev) + if (phy_interface_mode_is_8023z(iface) && pl->phydev) return -EINVAL; changed = !bitmap_equal(pl->supported, support, @@@ -1401,15 -1631,15 +1631,15 @@@ linkmode_copy(pl->link_config.advertising, config.advertising); } - if (pl->link_an_mode != mode || + if (pl->link_an_mode != MLO_AN_INBAND || pl->link_config.interface != config.interface) { pl->link_config.interface = config.interface; - pl->link_an_mode = mode; + pl->link_an_mode = MLO_AN_INBAND; changed = true; netdev_info(pl->netdev, "switched to %s/%s link mode\n", - phylink_an_mode_str(mode), + phylink_an_mode_str(MLO_AN_INBAND), phy_modes(config.interface)); } @@@ -1426,18 -1656,19 +1656,18 @@@ static void phylink_sfp_link_down(void { struct phylink *pl = upstream; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); set_bit(PHYLINK_DISABLE_LINK, &pl->phylink_disable_state); + queue_work(system_power_efficient_wq, &pl->resolve); flush_work(&pl->resolve); - - netif_carrier_off(pl->netdev); } static void phylink_sfp_link_up(void *upstream) { struct phylink *pl = upstream; - WARN_ON(!lockdep_rtnl_is_held()); + ASSERT_RTNL(); clear_bit(PHYLINK_DISABLE_LINK, &pl->phylink_disable_state); phylink_run_resolve(pl); diff --combined drivers/net/phy/sfp-bus.c index ab64a142b832,3ecc378e0716..bdc4bb3c8288 --- a/drivers/net/phy/sfp-bus.c +++ b/drivers/net/phy/sfp-bus.c @@@ -8,10 -8,14 +8,14 @@@ #include "sfp.h" + /** + * struct sfp_bus - internal representation of a sfp bus + */ struct sfp_bus { + /* private: */ struct kref kref; struct list_head node; - struct device_node *device_node; + struct fwnode_handle *fwnode; const struct sfp_socket_ops *socket_ops; struct device *sfp_dev; @@@ -26,6 -30,20 +30,20 @@@ bool started; }; + /** + * sfp_parse_port() - Parse the EEPROM base ID, setting the port type + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * @id: a pointer to the module's &struct sfp_eeprom_id + * @support: optional pointer to an array of unsigned long for the + * ethtool support mask + * + * Parse the EEPROM identification given in @id, and return one of + * %PORT_TP, %PORT_FIBRE or %PORT_OTHER. If @support is non-%NULL, + * also set the ethtool %ETHTOOL_LINK_MODE_xxx_BIT corresponding with + * the connector type. + * + * If the port type is not known, returns %PORT_OTHER. + */ int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id, unsigned long *support) { @@@ -39,21 -57,19 +57,19 @@@ case SFP_CONNECTOR_MT_RJ: case SFP_CONNECTOR_MU: case SFP_CONNECTOR_OPTICAL_PIGTAIL: - if (support) - phylink_set(support, FIBRE); port = PORT_FIBRE; break; case SFP_CONNECTOR_RJ45: - if (support) - phylink_set(support, TP); port = PORT_TP; break; + case SFP_CONNECTOR_COPPER_PIGTAIL: + port = PORT_DA; + break; + case SFP_CONNECTOR_UNSPEC: if (id->base.e1000_base_t) { - if (support) - phylink_set(support, TP); port = PORT_TP; break; } @@@ -62,7 -78,6 +78,6 @@@ case SFP_CONNECTOR_MPO_1X12: case SFP_CONNECTOR_MPO_2X16: case SFP_CONNECTOR_HSSDC_II: - case SFP_CONNECTOR_COPPER_PIGTAIL: case SFP_CONNECTOR_NOSEPARATE: case SFP_CONNECTOR_MXC_2X16: port = PORT_OTHER; @@@ -74,10 -89,40 +89,40 @@@ break; } + if (support) { + switch (port) { + case PORT_FIBRE: + phylink_set(support, FIBRE); + break; + + case PORT_TP: + phylink_set(support, TP); + break; + } + } + return port; } EXPORT_SYMBOL_GPL(sfp_parse_port); + /** + * sfp_parse_interface() - Parse the phy_interface_t + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * @id: a pointer to the module's &struct sfp_eeprom_id + * + * Derive the phy_interface_t mode for the information found in the + * module's identifying EEPROM. There is no standard or defined way + * to derive this information, so we use some heuristics. + * + * If the encoding is 64b66b, then the module must be >= 10G, so + * return %PHY_INTERFACE_MODE_10GKR. + * + * If it's 8b10b, then it's 1G or slower. If it's definitely a fibre + * module, return %PHY_INTERFACE_MODE_1000BASEX mode, otherwise return + * %PHY_INTERFACE_MODE_SGMII mode. + * + * If the encoding is not known, return %PHY_INTERFACE_MODE_NA. + */ phy_interface_t sfp_parse_interface(struct sfp_bus *bus, const struct sfp_eeprom_id *id) { @@@ -107,6 -152,11 +152,11 @@@ break; default: + if (id->base.e1000_base_cx) { + iface = PHY_INTERFACE_MODE_1000BASEX; + break; + } + iface = PHY_INTERFACE_MODE_NA; dev_err(bus->sfp_dev, "SFP module encoding does not support 8b10b nor 64b66b\n"); @@@ -117,13 -167,38 +167,38 @@@ } EXPORT_SYMBOL_GPL(sfp_parse_interface); + /** + * sfp_parse_support() - Parse the eeprom id for supported link modes + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * @id: a pointer to the module's &struct sfp_eeprom_id + * @support: pointer to an array of unsigned long for the ethtool support mask + * + * Parse the EEPROM identification information and derive the supported + * ethtool link modes for the module. + */ void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id, unsigned long *support) { + unsigned int br_min, br_nom, br_max; + phylink_set(support, Autoneg); phylink_set(support, Pause); phylink_set(support, Asym_Pause); + /* Decode the bitrate information to MBd */ + br_min = br_nom = br_max = 0; + if (id->base.br_nominal) { + if (id->base.br_nominal != 255) { + br_nom = id->base.br_nominal * 100; + br_min = br_nom + id->base.br_nominal * id->ext.br_min; + br_max = br_nom + id->base.br_nominal * id->ext.br_max; + } else if (id->ext.br_max) { + br_nom = 250 * id->ext.br_max; + br_max = br_nom + br_nom * id->ext.br_min / 100; + br_min = br_nom - br_nom * id->ext.br_min / 100; + } + } + /* Set ethtool support from the compliance fields. */ if (id->base.e10g_base_sr) phylink_set(support, 10000baseSR_Full); @@@ -142,6 -217,34 +217,34 @@@ phylink_set(support, 1000baseT_Full); } + /* 1000Base-PX or 1000Base-BX10 */ + if ((id->base.e_base_px || id->base.e_base_bx10) && + br_min <= 1300 && br_max >= 1200) + phylink_set(support, 1000baseX_Full); + + /* For active or passive cables, select the link modes + * based on the bit rates and the cable compliance bytes. + */ + if ((id->base.sfp_ct_passive || id->base.sfp_ct_active) && br_nom) { + /* This may look odd, but some manufacturers use 12000MBd */ + if (br_min <= 12000 && br_max >= 10300) + phylink_set(support, 10000baseCR_Full); + if (br_min <= 3200 && br_max >= 3100) + phylink_set(support, 2500baseX_Full); + if (br_min <= 1300 && br_max >= 1200) + phylink_set(support, 1000baseX_Full); + } + if (id->base.sfp_ct_passive) { + if (id->base.passive.sff8431_app_e) + phylink_set(support, 10000baseCR_Full); + } + if (id->base.sfp_ct_active) { + if (id->base.active.sff8431_app_e || + id->base.active.sff8431_lim) { + phylink_set(support, 10000baseCR_Full); + } + } + switch (id->base.extended_cc) { case 0x00: /* Unspecified */ break; @@@ -175,35 -278,6 +278,6 @@@ if (id->base.br_nominal >= 12) phylink_set(support, 1000baseX_Full); } - - switch (id->base.connector) { - case SFP_CONNECTOR_SC: - case SFP_CONNECTOR_FIBERJACK: - case SFP_CONNECTOR_LC: - case SFP_CONNECTOR_MT_RJ: - case SFP_CONNECTOR_MU: - case SFP_CONNECTOR_OPTICAL_PIGTAIL: - break; - - case SFP_CONNECTOR_UNSPEC: - if (id->base.e1000_base_t) - break; - - case SFP_CONNECTOR_SG: /* guess */ - case SFP_CONNECTOR_MPO_1X12: - case SFP_CONNECTOR_MPO_2X16: - case SFP_CONNECTOR_HSSDC_II: - case SFP_CONNECTOR_COPPER_PIGTAIL: - case SFP_CONNECTOR_NOSEPARATE: - case SFP_CONNECTOR_MXC_2X16: - default: - /* a guess at the supported link modes */ - dev_warn(bus->sfp_dev, - "Guessing link modes, please report...\n"); - phylink_set(support, 1000baseT_Half); - phylink_set(support, 1000baseT_Full); - break; - } } EXPORT_SYMBOL_GPL(sfp_parse_support); @@@ -215,7 -289,7 +289,7 @@@ static const struct sfp_upstream_ops *s return bus->registered ? bus->upstream_ops : NULL; } - static struct sfp_bus *sfp_bus_get(struct device_node *np) + static struct sfp_bus *sfp_bus_get(struct fwnode_handle *fwnode) { struct sfp_bus *sfp, *new, *found = NULL; @@@ -224,7 -298,7 +298,7 @@@ mutex_lock(&sfp_mutex); list_for_each_entry(sfp, &sfp_buses, node) { - if (sfp->device_node == np) { + if (sfp->fwnode == fwnode) { kref_get(&sfp->kref); found = sfp; break; @@@ -233,7 -307,7 +307,7 @@@ if (!found && new) { kref_init(&new->kref); - new->device_node = np; + new->fwnode = fwnode; list_add(&new->node, &sfp_buses); found = new; new = NULL; @@@ -246,7 -320,7 +320,7 @@@ return found; } - static void sfp_bus_release(struct kref *kref) __releases(sfp_mutex) + static void sfp_bus_release(struct kref *kref) { struct sfp_bus *bus = container_of(kref, struct sfp_bus, kref); @@@ -293,6 -367,16 +367,16 @@@ static void sfp_unregister_bus(struct s bus->registered = false; } + /** + * sfp_get_module_info() - Get the ethtool_modinfo for a SFP module + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * @modinfo: a &struct ethtool_modinfo + * + * Fill in the type and eeprom_len parameters in @modinfo for a module on + * the sfp bus specified by @bus. + * + * Returns 0 on success or a negative errno number. + */ int sfp_get_module_info(struct sfp_bus *bus, struct ethtool_modinfo *modinfo) { if (!bus->registered) @@@ -301,6 -385,17 +385,17 @@@ } EXPORT_SYMBOL_GPL(sfp_get_module_info); + /** + * sfp_get_module_eeprom() - Read the SFP module EEPROM + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * @ee: a &struct ethtool_eeprom + * @data: buffer to contain the EEPROM data (must be at least @ee->len bytes) + * + * Read the EEPROM as specified by the supplied @ee. See the documentation + * for &struct ethtool_eeprom for the region to be read. + * + * Returns 0 on success or a negative errno number. + */ int sfp_get_module_eeprom(struct sfp_bus *bus, struct ethtool_eeprom *ee, u8 *data) { @@@ -310,6 -405,15 +405,15 @@@ } EXPORT_SYMBOL_GPL(sfp_get_module_eeprom); + /** + * sfp_upstream_start() - Inform the SFP that the network device is up + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * + * Inform the SFP socket that the network device is now up, so that the + * module can be enabled by allowing TX_DISABLE to be deasserted. This + * should be called from the network device driver's &struct net_device_ops + * ndo_open() method. + */ void sfp_upstream_start(struct sfp_bus *bus) { if (bus->registered) @@@ -318,6 -422,15 +422,15 @@@ } EXPORT_SYMBOL_GPL(sfp_upstream_start); + /** + * sfp_upstream_stop() - Inform the SFP that the network device is down + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * + * Inform the SFP socket that the network device is now up, so that the + * module can be disabled by asserting TX_DISABLE, disabling the laser + * in optical modules. This should be called from the network device + * driver's &struct net_device_ops ndo_stop() method. + */ void sfp_upstream_stop(struct sfp_bus *bus) { if (bus->registered) @@@ -326,11 -439,24 +439,24 @@@ } EXPORT_SYMBOL_GPL(sfp_upstream_stop); - struct sfp_bus *sfp_register_upstream(struct device_node *np, + /** + * sfp_register_upstream() - Register the neighbouring device + * @np: device node for the SFP bus + * @ndev: network device associated with the interface + * @upstream: the upstream private data + * @ops: the upstream's &struct sfp_upstream_ops + * + * Register the upstream device (eg, PHY) with the SFP bus. MAC drivers + * should use phylink, which will call this function for them. Returns + * a pointer to the allocated &struct sfp_bus. + * + * On error, returns %NULL. + */ + struct sfp_bus *sfp_register_upstream(struct fwnode_handle *fwnode, struct net_device *ndev, void *upstream, const struct sfp_upstream_ops *ops) { - struct sfp_bus *bus = sfp_bus_get(np); + struct sfp_bus *bus = sfp_bus_get(fwnode); int ret = 0; if (bus) { @@@ -353,11 -479,17 +479,18 @@@ } EXPORT_SYMBOL_GPL(sfp_register_upstream); + /** + * sfp_unregister_upstream() - Unregister sfp bus + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * + * Unregister a previously registered upstream connection for the SFP + * module. @bus is returned from sfp_register_upstream(). + */ void sfp_unregister_upstream(struct sfp_bus *bus) { rtnl_lock(); - sfp_unregister_bus(bus); + if (bus->sfp) + sfp_unregister_bus(bus); bus->upstream = NULL; bus->netdev = NULL; rtnl_unlock(); @@@ -434,7 -566,7 +567,7 @@@ EXPORT_SYMBOL_GPL(sfp_module_remove) struct sfp_bus *sfp_register_socket(struct device *dev, struct sfp *sfp, const struct sfp_socket_ops *ops) { - struct sfp_bus *bus = sfp_bus_get(dev->of_node); + struct sfp_bus *bus = sfp_bus_get(dev->fwnode); int ret = 0; if (bus) { @@@ -460,8 -592,7 +593,8 @@@ EXPORT_SYMBOL_GPL(sfp_register_socket) void sfp_unregister_socket(struct sfp_bus *bus) { rtnl_lock(); - sfp_unregister_bus(bus); + if (bus->netdev) + sfp_unregister_bus(bus); bus->sfp_dev = NULL; bus->sfp = NULL; bus->socket_ops = NULL; diff --combined drivers/net/tun.c index 2ffe5dba7e09,e367d6310353..164fef1d1cf3 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@@ -195,6 -195,11 +195,11 @@@ struct tun_flow_entry #define TUN_NUM_FLOW_ENTRIES 1024 + struct tun_steering_prog { + struct rcu_head rcu; + struct bpf_prog *prog; + }; + /* Since the socket were moved to tun_file, to preserve the behavior of persist * device, socket filter, sndbuf and vnet header size were restore when the * file were attached to a persist device. @@@ -232,6 -237,7 +237,7 @@@ struct tun_struct u32 rx_batched; struct tun_pcpu_stats __percpu *pcpu_stats; struct bpf_prog __rcu *xdp_prog; + struct tun_steering_prog __rcu *steering_prog; }; static int tun_napi_receive(struct napi_struct *napi, int budget) @@@ -537,15 -543,12 +543,12 @@@ static inline void tun_flow_save_rps_rx * different rxq no. here. If we could not get rxhash, then we would * hope the rxq no. may help here. */ - static u16 tun_select_queue(struct net_device *dev, struct sk_buff *skb, - void *accel_priv, select_queue_fallback_t fallback) + static u16 tun_automq_select_queue(struct tun_struct *tun, struct sk_buff *skb) { - struct tun_struct *tun = netdev_priv(dev); struct tun_flow_entry *e; u32 txq = 0; u32 numqueues = 0; - rcu_read_lock(); numqueues = READ_ONCE(tun->numqueues); txq = __skb_get_hash_symmetric(skb); @@@ -563,10 -566,37 +566,37 @@@ txq -= numqueues; } - rcu_read_unlock(); return txq; } + static u16 tun_ebpf_select_queue(struct tun_struct *tun, struct sk_buff *skb) + { + struct tun_steering_prog *prog; + u16 ret = 0; + + prog = rcu_dereference(tun->steering_prog); + if (prog) + ret = bpf_prog_run_clear_cb(prog->prog, skb); + + return ret % tun->numqueues; + } + + static u16 tun_select_queue(struct net_device *dev, struct sk_buff *skb, + void *accel_priv, select_queue_fallback_t fallback) + { + struct tun_struct *tun = netdev_priv(dev); + u16 ret; + + rcu_read_lock(); + if (rcu_dereference(tun->steering_prog)) + ret = tun_ebpf_select_queue(tun, skb); + else + ret = tun_automq_select_queue(tun, skb); + rcu_read_unlock(); + + return ret; + } + static inline bool tun_not_capable(struct tun_struct *tun) { const struct cred *cred = current_cred(); @@@ -673,7 -703,6 +703,6 @@@ static void tun_detach(struct tun_file static void tun_detach_all(struct net_device *dev) { struct tun_struct *tun = netdev_priv(dev); - struct bpf_prog *xdp_prog = rtnl_dereference(tun->xdp_prog); struct tun_file *tfile, *tmp; int i, n = tun->numqueues; @@@ -708,9 -737,6 +737,6 @@@ } BUG_ON(tun->numdisabled != 0); - if (xdp_prog) - bpf_prog_put(xdp_prog); - if (tun->flags & IFF_PERSIST) module_put(THIS_MODULE); } @@@ -937,23 -963,10 +963,10 @@@ static int tun_net_close(struct net_dev } /* Net device start xmit */ - static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev) + static void tun_automq_xmit(struct tun_struct *tun, struct sk_buff *skb) { - struct tun_struct *tun = netdev_priv(dev); - int txq = skb->queue_mapping; - struct tun_file *tfile; - u32 numqueues = 0; - - rcu_read_lock(); - tfile = rcu_dereference(tun->tfiles[txq]); - numqueues = READ_ONCE(tun->numqueues); - - /* Drop packet if interface is not attached */ - if (txq >= numqueues) - goto drop; - #ifdef CONFIG_RPS - if (numqueues == 1 && static_key_false(&rps_needed)) { + if (tun->numqueues == 1 && static_key_false(&rps_needed)) { /* Select queue was not called for the skbuff, so we extract the * RPS hash and save it into the flow_table here. */ @@@ -969,6 -982,24 +982,24 @@@ } } #endif + } + + /* Net device start xmit */ + static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev) + { + struct tun_struct *tun = netdev_priv(dev); + int txq = skb->queue_mapping; + struct tun_file *tfile; + + rcu_read_lock(); + tfile = rcu_dereference(tun->tfiles[txq]); + + /* Drop packet if interface is not attached */ + if (txq >= tun->numqueues) + goto drop; + + if (!rcu_dereference(tun->steering_prog)) + tun_automq_xmit(tun, skb); tun_debug(KERN_INFO, tun, "tun_net_xmit %d\n", skb->len); @@@ -1248,12 -1279,12 +1279,12 @@@ static void tun_net_init(struct net_dev /* Character device part */ /* Poll */ -static unsigned int tun_chr_poll(struct file *file, poll_table *wait) +static __poll_t tun_chr_poll(struct file *file, poll_table *wait) { struct tun_file *tfile = file->private_data; struct tun_struct *tun = tun_get(tfile); struct sock *sk; - unsigned int mask = 0; + __poll_t mask = 0; if (!tun) return POLLERR; @@@ -1551,7 -1582,7 +1582,7 @@@ static ssize_t tun_get_user(struct tun_ int copylen; bool zerocopy = false; int err; - u32 rxhash; + u32 rxhash = 0; int skb_xdp = 1; bool frags = tun_napi_frags_enabled(tun); @@@ -1739,7 -1770,10 +1770,10 @@@ rcu_read_unlock(); } - rxhash = __skb_get_hash_symmetric(skb); + rcu_read_lock(); + if (!rcu_dereference(tun->steering_prog)) + rxhash = __skb_get_hash_symmetric(skb); + rcu_read_unlock(); if (frags) { /* Exercise flow dissector code path. */ @@@ -1783,7 -1817,9 +1817,9 @@@ u64_stats_update_end(&stats->syncp); put_cpu_ptr(stats); - tun_flow_update(tun, rxhash, tfile); + if (rxhash) + tun_flow_update(tun, rxhash, tfile); + return total_len; } @@@ -1991,6 -2027,39 +2027,39 @@@ static ssize_t tun_chr_read_iter(struc return ret; } + static void tun_steering_prog_free(struct rcu_head *rcu) + { + struct tun_steering_prog *prog = container_of(rcu, + struct tun_steering_prog, rcu); + + bpf_prog_destroy(prog->prog); + kfree(prog); + } + + static int __tun_set_steering_ebpf(struct tun_struct *tun, + struct bpf_prog *prog) + { + struct tun_steering_prog *old, *new = NULL; + + if (prog) { + new = kmalloc(sizeof(*new), GFP_KERNEL); + if (!new) + return -ENOMEM; + new->prog = prog; + } + + spin_lock_bh(&tun->lock); + old = rcu_dereference_protected(tun->steering_prog, + lockdep_is_held(&tun->lock)); + rcu_assign_pointer(tun->steering_prog, new); + spin_unlock_bh(&tun->lock); + + if (old) + call_rcu(&old->rcu, tun_steering_prog_free); + + return 0; + } + static void tun_free_netdev(struct net_device *dev) { struct tun_struct *tun = netdev_priv(dev); @@@ -1999,6 -2068,7 +2068,7 @@@ free_percpu(tun->pcpu_stats); tun_flow_uninit(tun); security_tun_dev_free_security(tun->security); + __tun_set_steering_ebpf(tun, NULL); } static void tun_setup(struct net_device *dev) @@@ -2287,6 -2357,7 +2357,7 @@@ static int tun_set_iff(struct net *net tun->filter_attached = false; tun->sndbuf = tfile->socket.sk->sk_sndbuf; tun->rx_batched = 0; + RCU_INIT_POINTER(tun->steering_prog, NULL); tun->pcpu_stats = netdev_alloc_pcpu_stats(struct tun_pcpu_stats); if (!tun->pcpu_stats) { @@@ -2479,6 -2550,25 +2550,25 @@@ unlock return ret; } + static int tun_set_steering_ebpf(struct tun_struct *tun, void __user *data) + { + struct bpf_prog *prog; + int fd; + + if (copy_from_user(&fd, data, sizeof(fd))) + return -EFAULT; + + if (fd == -1) { + prog = NULL; + } else { + prog = bpf_prog_get_type(fd, BPF_PROG_TYPE_SOCKET_FILTER); + if (IS_ERR(prog)) + return PTR_ERR(prog); + } + + return __tun_set_steering_ebpf(tun, prog); + } + static long __tun_chr_ioctl(struct file *file, unsigned int cmd, unsigned long arg, int ifreq_len) { @@@ -2755,6 -2845,10 +2845,10 @@@ ret = 0; break; + case TUNSETSTEERINGEBPF: + ret = tun_set_steering_ebpf(tun, argp); + break; + default: ret = -EINVAL; break; diff --combined drivers/net/usb/qmi_wwan.c index 728819feab44,cfaa07f230e5..ae0580b577b8 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@@ -826,7 -826,7 +826,7 @@@ err static const struct driver_info qmi_wwan_info = { .description = "WWAN/QMI device", - .flags = FLAG_WWAN, + .flags = FLAG_WWAN | FLAG_SEND_ZLP, .bind = qmi_wwan_bind, .unbind = qmi_wwan_unbind, .manage_power = qmi_wwan_manage_power, @@@ -835,7 -835,7 +835,7 @@@ static const struct driver_info qmi_wwan_info_quirk_dtr = { .description = "WWAN/QMI device", - .flags = FLAG_WWAN, + .flags = FLAG_WWAN | FLAG_SEND_ZLP, .bind = qmi_wwan_bind, .unbind = qmi_wwan_unbind, .manage_power = qmi_wwan_manage_power, @@@ -1100,7 -1100,6 +1100,7 @@@ static const struct usb_device_id produ {QMI_FIXED_INTF(0x05c6, 0x9084, 4)}, {QMI_FIXED_INTF(0x05c6, 0x920d, 0)}, {QMI_FIXED_INTF(0x05c6, 0x920d, 5)}, + {QMI_QUIRK_SET_DTR(0x05c6, 0x9625, 4)}, /* YUGA CLM920-NC5 */ {QMI_FIXED_INTF(0x0846, 0x68a2, 8)}, {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */ {QMI_FIXED_INTF(0x12d1, 0x14ac, 1)}, /* Huawei E1820 */ diff --combined fs/btrfs/disk-io.c index f334d4eaa644,5da18ebc9222..ed93324ec9f0 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@@ -30,6 -30,7 +30,7 @@@ #include <linux/ratelimit.h> #include <linux/uuid.h> #include <linux/semaphore.h> + #include <linux/bpf.h> #include <asm/unaligned.h> #include "ctree.h" #include "disk-io.h" @@@ -220,7 -221,7 +221,7 @@@ void btrfs_set_buffer_lockdep_class(u6 * extents on the btree inode are pretty simple, there's one extent * that covers the entire device */ -static struct extent_map *btree_get_extent(struct btrfs_inode *inode, +struct extent_map *btree_get_extent(struct btrfs_inode *inode, struct page *page, size_t pg_offset, u64 start, u64 len, int create) { @@@ -285,7 -286,7 +286,7 @@@ static int csum_tree_block(struct btrfs int verify) { u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); - char *result = NULL; + char result[BTRFS_CSUM_SIZE]; unsigned long len; unsigned long cur_len; unsigned long offset = BTRFS_CSUM_SIZE; @@@ -294,6 -295,7 +295,6 @@@ unsigned long map_len; int err; u32 crc = ~(u32)0; - unsigned long inline_result; len = buf->len - offset; while (len > 0) { @@@ -307,7 -309,13 +308,7 @@@ len -= cur_len; offset += cur_len; } - if (csum_size > sizeof(inline_result)) { - result = kzalloc(csum_size, GFP_NOFS); - if (!result) - return -ENOMEM; - } else { - result = (char *)&inline_result; - } + memset(result, 0, BTRFS_CSUM_SIZE); btrfs_csum_final(crc, result); @@@ -322,12 -330,15 +323,12 @@@ "%s checksum verify failed on %llu wanted %X found %X level %d", fs_info->sb->s_id, buf->start, val, found, btrfs_header_level(buf)); - if (result != (char *)&inline_result) - kfree(result); return -EUCLEAN; } } else { write_extent_buffer(buf, result, 0, csum_size); } - if (result != (char *)&inline_result) - kfree(result); + return 0; } @@@ -381,7 -392,7 +382,7 @@@ static int verify_parent_transid(struc clear_extent_buffer_uptodate(eb); out: unlock_extent_cached(io_tree, eb->start, eb->start + eb->len - 1, - &cached_state, GFP_NOFS); + &cached_state); if (need_lock) btrfs_tree_read_unlock_blocking(eb); return ret; @@@ -445,7 -456,7 +446,7 @@@ static int btree_read_extent_buffer_pag io_tree = &BTRFS_I(fs_info->btree_inode)->io_tree; while (1) { ret = read_extent_buffer_pages(io_tree, eb, WAIT_COMPLETE, - btree_get_extent, mirror_num); + mirror_num); if (!ret) { if (!verify_parent_transid(io_tree, eb, parent_transid, 0)) @@@ -855,8 -866,6 +856,8 @@@ static blk_status_t btree_submit_bio_ho int async = check_async_write(BTRFS_I(inode)); blk_status_t ret; + bio_associate_blkcg(bio, blkcg_root_css); + if (bio_op(bio) != REQ_OP_WRITE) { /* * called for a read, do the setup so that checksum validation @@@ -1004,7 -1013,7 +1005,7 @@@ void readahead_tree_block(struct btrfs_ if (IS_ERR(buf)) return; read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree, - buf, WAIT_NONE, btree_get_extent, 0); + buf, WAIT_NONE, 0); free_extent_buffer(buf); } @@@ -1023,7 -1032,7 +1024,7 @@@ int reada_tree_block_flagged(struct btr set_bit(EXTENT_BUFFER_READAHEAD, &buf->bflags); ret = read_extent_buffer_pages(io_tree, buf, WAIT_PAGE_LOCK, - btree_get_extent, mirror_num); + mirror_num); if (ret) { free_extent_buffer(buf); return ret; @@@ -1160,7 -1169,6 +1161,7 @@@ static void __setup_root(struct btrfs_r spin_lock_init(&root->accounting_lock); spin_lock_init(&root->log_extents_lock[0]); spin_lock_init(&root->log_extents_lock[1]); + spin_lock_init(&root->qgroup_meta_rsv_lock); mutex_init(&root->objectid_mutex); mutex_init(&root->log_mutex); mutex_init(&root->ordered_extent_mutex); @@@ -1177,6 -1185,7 +1178,6 @@@ atomic_set(&root->orphan_inodes, 0); refcount_set(&root->refs, 1); atomic_set(&root->will_be_snapshotted, 0); - atomic64_set(&root->qgroup_meta_rsv, 0); root->log_transid = 0; root->log_transid_committed = -1; root->last_log_commit = 0; @@@ -1235,7 -1244,7 +1236,7 @@@ struct btrfs_root *btrfs_create_tree(st struct btrfs_root *root; struct btrfs_key key; int ret = 0; - uuid_le uuid; + uuid_le uuid = { 0 }; root = btrfs_alloc_root(fs_info, GFP_KERNEL); if (!root) @@@ -1276,8 -1285,7 +1277,8 @@@ btrfs_set_root_used(&root->root_item, leaf->len); btrfs_set_root_last_snapshot(&root->root_item, 0); btrfs_set_root_dirid(&root->root_item, 0); - uuid_le_gen(&uuid); + if (is_fstree(objectid)) + uuid_le_gen(&uuid); memcpy(root->root_item.uuid, uuid.b, BTRFS_UUID_SIZE); root->root_item.drop_level = 0; @@@ -2868,7 -2876,7 +2869,7 @@@ retry_root_backup goto fail_sysfs; } - if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info)) { + if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info, NULL)) { btrfs_warn(fs_info, "writeable mount is not allowed due to too many missing devices"); goto fail_sysfs; @@@ -3116,6 -3124,7 +3117,7 @@@ recovery_tree_root goto fail_block_groups; goto retry_root_backup; } + BPF_ALLOW_ERROR_INJECTION(open_ctree); static void btrfs_end_buffer_write_sync(struct buffer_head *bh, int uptodate) { @@@ -3343,8 -3352,6 +3345,8 @@@ static void write_dev_flush(struct btrf return; bio_reset(bio); + bio_associate_blkcg(bio, blkcg_root_css); + bio->bi_end_io = btrfs_end_empty_barrier; bio_set_dev(bio, device->bdev); bio->bi_opf = REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH; @@@ -3352,7 -3359,7 +3354,7 @@@ bio->bi_private = &device->flush_wait; btrfsic_submit_bio(bio); - device->flush_bio_sent = 1; + set_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state); } /* @@@ -3362,10 -3369,10 +3364,10 @@@ static blk_status_t wait_dev_flush(stru { struct bio *bio = device->flush_bio; - if (!device->flush_bio_sent) + if (!test_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state)) return BLK_STS_OK; - device->flush_bio_sent = 0; + clear_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state); wait_for_completion_io(&device->flush_wait); return bio->bi_status; @@@ -3373,7 -3380,7 +3375,7 @@@ static int check_barrier_error(struct btrfs_fs_info *fs_info) { - if (!btrfs_check_rw_degradable(fs_info)) + if (!btrfs_check_rw_degradable(fs_info, NULL)) return -EIO; return 0; } @@@ -3389,16 -3396,14 +3391,16 @@@ static int barrier_all_devices(struct b int errors_wait = 0; blk_status_t ret; + lockdep_assert_held(&info->fs_devices->device_list_mutex); /* send down all the barriers */ head = &info->fs_devices->devices; - list_for_each_entry_rcu(dev, head, dev_list) { - if (dev->missing) + list_for_each_entry(dev, head, dev_list) { + if (test_bit(BTRFS_DEV_STATE_MISSING, &dev->dev_state)) continue; if (!dev->bdev) continue; - if (!dev->in_fs_metadata || !dev->writeable) + if (!test_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &dev->dev_state) || + !test_bit(BTRFS_DEV_STATE_WRITEABLE, &dev->dev_state)) continue; write_dev_flush(dev); @@@ -3406,15 -3411,14 +3408,15 @@@ } /* wait for all the barriers */ - list_for_each_entry_rcu(dev, head, dev_list) { - if (dev->missing) + list_for_each_entry(dev, head, dev_list) { + if (test_bit(BTRFS_DEV_STATE_MISSING, &dev->dev_state)) continue; if (!dev->bdev) { errors_wait++; continue; } - if (!dev->in_fs_metadata || !dev->writeable) + if (!test_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &dev->dev_state) || + !test_bit(BTRFS_DEV_STATE_WRITEABLE, &dev->dev_state)) continue; ret = wait_dev_flush(dev); @@@ -3506,13 -3510,12 +3508,13 @@@ int write_all_supers(struct btrfs_fs_in } } - list_for_each_entry_rcu(dev, head, dev_list) { + list_for_each_entry(dev, head, dev_list) { if (!dev->bdev) { total_errors++; continue; } - if (!dev->in_fs_metadata || !dev->writeable) + if (!test_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &dev->dev_state) || + !test_bit(BTRFS_DEV_STATE_WRITEABLE, &dev->dev_state)) continue; btrfs_set_stack_device_generation(dev_item, 0); @@@ -3548,11 -3551,10 +3550,11 @@@ } total_errors = 0; - list_for_each_entry_rcu(dev, head, dev_list) { + list_for_each_entry(dev, head, dev_list) { if (!dev->bdev) continue; - if (!dev->in_fs_metadata || !dev->writeable) + if (!test_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &dev->dev_state) || + !test_bit(BTRFS_DEV_STATE_WRITEABLE, &dev->dev_state)) continue; ret = wait_dev_supers(dev, max_mirrors); diff --combined fs/btrfs/free-space-cache.c index 9e8c1f046e02,fb1382893bfc..9088b0b0d10f --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@@ -22,6 -22,7 +22,7 @@@ #include <linux/slab.h> #include <linux/math64.h> #include <linux/ratelimit.h> + #include <linux/bpf.h> #include "ctree.h" #include "free-space-cache.h" #include "transaction.h" @@@ -332,6 -333,7 +333,7 @@@ static int io_ctl_init(struct btrfs_io_ return 0; } + BPF_ALLOW_ERROR_INJECTION(io_ctl_init); static void io_ctl_free(struct btrfs_io_ctl *io_ctl) { @@@ -993,7 -995,8 +995,7 @@@ update_cache_item(struct btrfs_trans_ha ret = btrfs_search_slot(trans, root, &key, path, 0, 1); if (ret < 0) { clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, inode->i_size - 1, - EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, NULL, - GFP_NOFS); + EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, NULL); goto fail; } leaf = path->nodes[0]; @@@ -1007,7 -1010,7 +1009,7 @@@ clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, inode->i_size - 1, EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, - NULL, GFP_NOFS); + NULL); btrfs_release_path(path); goto fail; } @@@ -1104,7 -1107,8 +1106,7 @@@ static int flush_dirty_cache(struct ino ret = btrfs_wait_ordered_range(inode, 0, (u64)-1); if (ret) clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, inode->i_size - 1, - EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, NULL, - GFP_NOFS); + EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, NULL); return ret; } @@@ -1125,7 -1129,8 +1127,7 @@@ cleanup_write_cache_enospc(struct inod { io_ctl_drop_pages(io_ctl); unlock_extent_cached(&BTRFS_I(inode)->io_tree, 0, - i_size_read(inode) - 1, cached_state, - GFP_NOFS); + i_size_read(inode) - 1, cached_state); } static int __btrfs_wait_cache_io(struct btrfs_root *root, @@@ -1319,7 -1324,7 +1321,7 @@@ static int __btrfs_write_out_cache(stru io_ctl_drop_pages(io_ctl); unlock_extent_cached(&BTRFS_I(inode)->io_tree, 0, - i_size_read(inode) - 1, &cached_state, GFP_NOFS); + i_size_read(inode) - 1, &cached_state); /* * at this point the pages are under IO and we're happy, @@@ -3545,7 -3550,7 +3547,7 @@@ int btrfs_write_out_ino_cache(struct bt if (ret) { if (release_metadata) btrfs_delalloc_release_metadata(BTRFS_I(inode), - inode->i_size); + inode->i_size, true); #ifdef DEBUG btrfs_err(fs_info, "failed to write free ino cache for root %llu", diff --combined include/linux/bpf.h index b63a592ad29d,da54ef644fcd..0dcd1d7c9825 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@@ -200,6 -200,9 +200,9 @@@ struct bpf_prog_aux u32 max_ctx_offset; u32 stack_depth; u32 id; + u32 func_cnt; + struct bpf_prog **func; + void *jit_data; /* JIT specific data. arch dependent */ struct latch_tree_node ksym_tnode; struct list_head ksym_lnode; const struct bpf_prog_ops *ops; @@@ -285,6 -288,9 +288,9 @@@ int bpf_prog_array_copy_to_user(struct void bpf_prog_array_delete_safe(struct bpf_prog_array __rcu *progs, struct bpf_prog *old_prog); + int bpf_prog_array_copy_info(struct bpf_prog_array __rcu *array, + __u32 __user *prog_ids, u32 request_cnt, + __u32 __user *prog_cnt); int bpf_prog_array_copy(struct bpf_prog_array __rcu *old_array, struct bpf_prog *exclude_prog, struct bpf_prog *include_prog, @@@ -399,6 -405,7 +405,7 @@@ static inline void bpf_long_memcpy(voi /* verify correctness of eBPF program */ int bpf_check(struct bpf_prog **fp, union bpf_attr *attr); + void bpf_patch_call_args(struct bpf_insn *insn, u32 stack_depth); /* Map specifics */ struct net_device *__dev_map_lookup_elem(struct bpf_map *map, u32 key); @@@ -419,8 -426,6 +426,8 @@@ static inline int bpf_map_attr_numa_nod attr->numa_node : NUMA_NO_NODE; } +struct bpf_prog *bpf_prog_get_type_path(const char *name, enum bpf_prog_type type); + #else /* !CONFIG_BPF_SYSCALL */ static inline struct bpf_prog *bpf_prog_get(u32 ufd) { @@@ -508,12 -513,6 +515,12 @@@ static inline int cpu_map_enqueue(struc { return 0; } + +static inline struct bpf_prog *bpf_prog_get_type_path(const char *name, + enum bpf_prog_type type) +{ + return ERR_PTR(-EOPNOTSUPP); +} #endif /* CONFIG_BPF_SYSCALL */ static inline struct bpf_prog *bpf_prog_get_type(u32 ufd, @@@ -522,8 -521,6 +529,8 @@@ return bpf_prog_get_type_dev(ufd, type, false); } +bool bpf_prog_get_ok(struct bpf_prog *, enum bpf_prog_type *, bool); + int bpf_prog_offload_compile(struct bpf_prog *prog); void bpf_prog_offload_destroy(struct bpf_prog *prog); @@@ -586,4 -583,15 +593,15 @@@ extern const struct bpf_func_proto bpf_ void bpf_user_rnd_init_once(void); u64 bpf_user_rnd_u32(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5); + #if defined(__KERNEL__) && !defined(__ASSEMBLY__) + #ifdef CONFIG_BPF_KPROBE_OVERRIDE + #define BPF_ALLOW_ERROR_INJECTION(fname) \ + static unsigned long __used \ + __attribute__((__section__("_kprobe_error_inject_list"))) \ + _eil_addr_##fname = (unsigned long)fname; + #else + #define BPF_ALLOW_ERROR_INJECTION(fname) + #endif + #endif + #endif /* _LINUX_BPF_H */ diff --combined include/linux/module.h index e6249795f9e2,548fa09fa806..0fd65481c045 --- a/include/linux/module.h +++ b/include/linux/module.h @@@ -475,6 -475,11 +475,11 @@@ struct module ctor_fn_t *ctors; unsigned int num_ctors; #endif + + #ifdef CONFIG_BPF_KPROBE_OVERRIDE + unsigned int num_kprobe_ei_funcs; + unsigned long *kprobe_ei_funcs; + #endif } ____cacheline_aligned __randomize_layout; #ifndef MODULE_ARCH_INIT #define MODULE_ARCH_INIT {} @@@ -606,9 -611,6 +611,9 @@@ int ref_module(struct module *a, struc __mod ? __mod->name : "kernel"; \ }) +/* Dereference module function descriptor */ +void *dereference_module_function_descriptor(struct module *mod, void *ptr); + /* For kallsyms to ask for address resolution. namebuf should be at * least KSYM_NAME_LEN long: a pointer to namebuf is returned if * found, otherwise NULL. */ @@@ -763,13 -765,6 +768,13 @@@ static inline bool is_module_sig_enforc return false; } +/* Dereference module function descriptor */ +static inline +void *dereference_module_function_descriptor(struct module *mod, void *ptr) +{ + return ptr; +} + #endif /* CONFIG_MODULES */ #ifdef CONFIG_SYSFS diff --combined include/linux/pci.h index 95807535d175,0314e0716c30..66cca1c6f742 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@@ -48,17 -48,17 +48,17 @@@ * In the interest of not exposing interfaces to user-space unnecessarily, * the following kernel-only defines are being added here. */ -#define PCI_DEVID(bus, devfn) ((((u16)(bus)) << 8) | (devfn)) +#define PCI_DEVID(bus, devfn) ((((u16)(bus)) << 8) | (devfn)) /* return bus from PCI devid = ((u16)bus_number) << 8) | devfn */ #define PCI_BUS_NUM(x) (((x) >> 8) & 0xff) /* pci_slot represents a physical slot */ struct pci_slot { - struct pci_bus *bus; /* The bus this slot is on */ - struct list_head list; /* node in list of slots on this bus */ - struct hotplug_slot *hotplug; /* Hotplug info (migrate over time) */ - unsigned char number; /* PCI_SLOT(pci_dev->devfn) */ - struct kobject kobj; + struct pci_bus *bus; /* Bus this slot is on */ + struct list_head list; /* Node in list of slots */ + struct hotplug_slot *hotplug; /* Hotplug info (move here) */ + unsigned char number; /* PCI_SLOT(pci_dev->devfn) */ + struct kobject kobj; }; static inline const char *pci_slot_name(const struct pci_slot *slot) @@@ -72,7 -72,9 +72,7 @@@ enum pci_mmap_state pci_mmap_mem }; -/* - * For PCI devices, the region numbers are assigned this way: - */ +/* For PCI devices, the region numbers are assigned this way: */ enum { /* #0-5: standard PCI resources */ PCI_STD_RESOURCES, @@@ -81,23 -83,23 +81,23 @@@ /* #6: expansion ROM resource */ PCI_ROM_RESOURCE, - /* device specific resources */ + /* Device-specific resources */ #ifdef CONFIG_PCI_IOV PCI_IOV_RESOURCES, PCI_IOV_RESOURCE_END = PCI_IOV_RESOURCES + PCI_SRIOV_NUM_BARS - 1, #endif - /* resources assigned to buses behind the bridge */ + /* Resources assigned to buses behind the bridge */ #define PCI_BRIDGE_RESOURCE_NUM 4 PCI_BRIDGE_RESOURCES, PCI_BRIDGE_RESOURCE_END = PCI_BRIDGE_RESOURCES + PCI_BRIDGE_RESOURCE_NUM - 1, - /* total resources associated with a PCI device */ + /* Total resources associated with a PCI device */ PCI_NUM_RESOURCES, - /* preserve this for compatibility */ + /* Preserve this for compatibility */ DEVICE_COUNT_RESOURCE = PCI_NUM_RESOURCES, }; @@@ -150,10 -152,9 +150,10 @@@ static inline const char *pci_power_nam #define PCI_PM_D3COLD_WAIT 100 #define PCI_PM_BUS_WAIT 50 -/** The pci_channel state describes connectivity between the CPU and - * the pci device. If some PCI bus between here and the pci device - * has crashed or locked up, this info is reflected here. +/** + * The pci_channel state describes connectivity between the CPU and + * the PCI device. If some PCI bus between here and the PCI device + * has crashed or locked up, this info is reflected here. */ typedef unsigned int __bitwise pci_channel_state_t; @@@ -183,7 -184,9 +183,7 @@@ enum pcie_reset_state typedef unsigned short __bitwise pci_dev_flags_t; enum pci_dev_flags { - /* INTX_DISABLE in PCI_COMMAND register disables MSI - * generation too. - */ + /* INTX_DISABLE in PCI_COMMAND register disables MSI too */ PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG = (__force pci_dev_flags_t) (1 << 0), /* Device configuration is irrevocably lost if disabled into D3 */ PCI_DEV_FLAGS_NO_D3 = (__force pci_dev_flags_t) (1 << 1), @@@ -199,7 -202,7 +199,7 @@@ PCI_DEV_FLAGS_NO_PM_RESET = (__force pci_dev_flags_t) (1 << 7), /* Get VPD from function 0 VPD */ PCI_DEV_FLAGS_VPD_REF_F0 = (__force pci_dev_flags_t) (1 << 8), - /* a non-root bridge where translation occurs, stop alias search here */ + /* A non-root bridge where translation occurs, stop alias search here */ PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT = (__force pci_dev_flags_t) (1 << 9), /* Do not use FLR even if device advertises PCI_AF_CAP */ PCI_DEV_FLAGS_NO_FLR_RESET = (__force pci_dev_flags_t) (1 << 10), @@@ -219,17 -222,17 +219,17 @@@ enum pci_bus_flags PCI_BUS_FLAGS_NO_AERSID = (__force pci_bus_flags_t) 4, }; -/* These values come from the PCI Express Spec */ +/* Values from Link Status register, PCIe r3.1, sec 7.8.8 */ enum pcie_link_width { PCIE_LNK_WIDTH_RESRV = 0x00, PCIE_LNK_X1 = 0x01, PCIE_LNK_X2 = 0x02, PCIE_LNK_X4 = 0x04, PCIE_LNK_X8 = 0x08, - PCIE_LNK_X12 = 0x0C, + PCIE_LNK_X12 = 0x0c, PCIE_LNK_X16 = 0x10, PCIE_LNK_X32 = 0x20, - PCIE_LNK_WIDTH_UNKNOWN = 0xFF, + PCIE_LNK_WIDTH_UNKNOWN = 0xff, }; /* Based on the PCI Hotplug Spec, but some values are made up by us */ @@@ -260,15 -263,15 +260,15 @@@ enum pci_bus_speed }; struct pci_cap_saved_data { - u16 cap_nr; - bool cap_extended; - unsigned int size; - u32 data[0]; + u16 cap_nr; + bool cap_extended; + unsigned int size; + u32 data[0]; }; struct pci_cap_saved_state { - struct hlist_node next; - struct pci_cap_saved_data cap; + struct hlist_node next; + struct pci_cap_saved_data cap; }; struct irq_affinity; @@@ -277,17 -280,19 +277,17 @@@ struct pci_vpd struct pci_sriov; struct pci_ats; -/* - * The pci_dev structure is used to describe PCI devices. - */ +/* The pci_dev structure describes PCI devices */ struct pci_dev { - struct list_head bus_list; /* node in per-bus list */ - struct pci_bus *bus; /* bus this device is on */ - struct pci_bus *subordinate; /* bus this device bridges to */ + struct list_head bus_list; /* Node in per-bus list */ + struct pci_bus *bus; /* Bus this device is on */ + struct pci_bus *subordinate; /* Bus this device bridges to */ - void *sysdata; /* hook for sys-specific extension */ - struct proc_dir_entry *procent; /* device entry in /proc/bus/pci */ + void *sysdata; /* Hook for sys-specific extension */ + struct proc_dir_entry *procent; /* Device entry in /proc/bus/pci */ struct pci_slot *slot; /* Physical slot this device is in */ - unsigned int devfn; /* encoded device & function index */ + unsigned int devfn; /* Encoded device & function index */ unsigned short vendor; unsigned short device; unsigned short subsystem_vendor; @@@ -302,12 -307,12 +302,12 @@@ u8 msi_cap; /* MSI capability offset */ u8 msix_cap; /* MSI-X capability offset */ u8 pcie_mpss:3; /* PCIe Max Payload Size Supported */ - u8 rom_base_reg; /* which config register controls the ROM */ - u8 pin; /* which interrupt pin this device uses */ - u16 pcie_flags_reg; /* cached PCIe Capabilities Register */ - unsigned long *dma_alias_mask;/* mask of enabled devfn aliases */ + u8 rom_base_reg; /* Config register controlling ROM */ + u8 pin; /* Interrupt pin this device uses */ + u16 pcie_flags_reg; /* Cached PCIe Capabilities Register */ + unsigned long *dma_alias_mask;/* Mask of enabled devfn aliases */ - struct pci_driver *driver; /* which driver has allocated this device */ + struct pci_driver *driver; /* Driver bound to this device */ u64 dma_mask; /* Mask of the bits of bus address this device implements. Normally this is 0xffffffff. You only need to change @@@ -316,9 -321,9 +316,9 @@@ struct device_dma_parameters dma_parms; - pci_power_t current_state; /* Current operating state. In ACPI-speak, - this is D0-D3, D0 being fully functional, - and D3 being off. */ + pci_power_t current_state; /* Current operating state. In ACPI, + this is D0-D3, D0 being fully + functional, and D3 being off. */ u8 pm_cap; /* PM capability offset */ unsigned int pme_support:5; /* Bitmask of states from which PME# can be generated */ @@@ -329,10 -334,10 +329,10 @@@ unsigned int no_d3cold:1; /* D3cold is forbidden */ unsigned int bridge_d3:1; /* Allow D3 for bridge */ unsigned int d3cold_allowed:1; /* D3cold is allowed by user */ - unsigned int mmio_always_on:1; /* disallow turning off io/mem - decoding during bar sizing */ + unsigned int mmio_always_on:1; /* Disallow turning off io/mem + decoding during BAR sizing */ unsigned int wakeup_prepared:1; - unsigned int runtime_d3cold:1; /* whether go through runtime + unsigned int runtime_d3cold:1; /* Whether go through runtime D3cold, not set for devices powered on/off by the corresponding bridge */ @@@ -345,14 -350,12 +345,14 @@@ #ifdef CONFIG_PCIEASPM struct pcie_link_state *link_state; /* ASPM link state */ + unsigned int ltr_path:1; /* Latency Tolerance Reporting + supported from root to here */ #endif - pci_channel_state_t error_state; /* current connectivity state */ - struct device dev; /* Generic device interface */ + pci_channel_state_t error_state; /* Current connectivity state */ + struct device dev; /* Generic device interface */ - int cfg_size; /* Size of configuration space */ + int cfg_size; /* Size of config space */ /* * Instead of touching interrupt line and base address registers @@@ -361,47 -364,47 +361,47 @@@ unsigned int irq; struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */ - bool match_driver; /* Skip attaching driver */ - /* These fields are used by common fixups */ - unsigned int transparent:1; /* Subtractive decode PCI bridge */ - unsigned int multifunction:1;/* Part of multi-function device */ - /* keep track of device state */ + bool match_driver; /* Skip attaching driver */ + + unsigned int transparent:1; /* Subtractive decode bridge */ + unsigned int multifunction:1; /* Multi-function device */ + unsigned int is_added:1; - unsigned int is_busmaster:1; /* device is busmaster */ - unsigned int no_msi:1; /* device may not use msi */ - unsigned int no_64bit_msi:1; /* device may only use 32-bit MSIs */ - unsigned int block_cfg_access:1; /* config space access is blocked */ - unsigned int broken_parity_status:1; /* Device generates false positive parity */ - unsigned int irq_reroute_variant:2; /* device needs IRQ rerouting variant */ + unsigned int is_busmaster:1; /* Is busmaster */ + unsigned int no_msi:1; /* May not use MSI */ + unsigned int no_64bit_msi:1; /* May only use 32-bit MSIs */ + unsigned int block_cfg_access:1; /* Config space access blocked */ + unsigned int broken_parity_status:1; /* Generates false positive parity */ + unsigned int irq_reroute_variant:2; /* Needs IRQ rerouting variant */ unsigned int msi_enabled:1; unsigned int msix_enabled:1; - unsigned int ari_enabled:1; /* ARI forwarding */ - unsigned int ats_enabled:1; /* Address Translation Service */ + unsigned int ari_enabled:1; /* ARI forwarding */ + unsigned int ats_enabled:1; /* Address Translation Svc */ unsigned int pasid_enabled:1; /* Process Address Space ID */ unsigned int pri_enabled:1; /* Page Request Interface */ unsigned int is_managed:1; - unsigned int needs_freset:1; /* Dev requires fundamental reset */ + unsigned int needs_freset:1; /* Requires fundamental reset */ unsigned int state_saved:1; unsigned int is_physfn:1; unsigned int is_virtfn:1; unsigned int reset_fn:1; - unsigned int is_hotplug_bridge:1; - unsigned int is_thunderbolt:1; /* Thunderbolt controller */ - unsigned int __aer_firmware_first_valid:1; + unsigned int is_hotplug_bridge:1; + unsigned int is_thunderbolt:1; /* Thunderbolt controller */ + unsigned int __aer_firmware_first_valid:1; unsigned int __aer_firmware_first:1; - unsigned int broken_intx_masking:1; /* INTx masking can't be used */ - unsigned int io_window_1k:1; /* Intel P2P bridge 1K I/O windows */ + unsigned int broken_intx_masking:1; /* INTx masking can't be used */ + unsigned int io_window_1k:1; /* Intel bridge 1K I/O windows */ unsigned int irq_managed:1; unsigned int has_secondary_link:1; - unsigned int non_compliant_bars:1; /* broken BARs; ignore them */ - unsigned int is_probed:1; /* device probing in progress */ + unsigned int non_compliant_bars:1; /* Broken BARs; ignore them */ + unsigned int is_probed:1; /* Device probing in progress */ pci_dev_flags_t dev_flags; atomic_t enable_cnt; /* pci_enable_device has been called */ - u32 saved_config_space[16]; /* config space saved at suspend time */ + u32 saved_config_space[16]; /* Config space saved at suspend time */ struct hlist_head saved_cap_space; - struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */ - int rom_attr_enabled; /* has display of the rom attribute been enabled? */ + struct bin_attribute *rom_attr; /* Attribute descriptor for sysfs ROM entry */ + int rom_attr_enabled; /* Display of ROM attribute enabled? */ struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */ struct bin_attribute *res_attr_wc[DEVICE_COUNT_RESOURCE]; /* sysfs file for WC mapping of resources */ @@@ -416,12 -419,12 +416,12 @@@ struct pci_vpd *vpd; #ifdef CONFIG_PCI_ATS union { - struct pci_sriov *sriov; /* SR-IOV capability related */ - struct pci_dev *physfn; /* the PF this VF is associated with */ + struct pci_sriov *sriov; /* PF: SR-IOV info */ + struct pci_dev *physfn; /* VF: related PF */ }; u16 ats_cap; /* ATS Capability offset */ u8 ats_stu; /* ATS Smallest Translation Unit */ - atomic_t ats_ref_cnt; /* number of VFs with ATS enabled */ + atomic_t ats_ref_cnt; /* Number of VFs with ATS enabled */ #endif #ifdef CONFIG_PCI_PRI u32 pri_reqs_alloc; /* Number of PRI requests allocated */ @@@ -429,11 -432,11 +429,11 @@@ #ifdef CONFIG_PCI_PASID u16 pasid_features; #endif - phys_addr_t rom; /* Physical address of ROM if it's not from the BAR */ - size_t romlen; /* Length of ROM if it's not from the BAR */ - char *driver_override; /* Driver name to force a match */ + phys_addr_t rom; /* Physical address if not from BAR */ + size_t romlen; /* Length if not from BAR */ + char *driver_override; /* Driver name to force a match */ - unsigned long priv_flags; /* Private flags for the pci driver */ + unsigned long priv_flags; /* Private flags for the PCI driver */ }; static inline struct pci_dev *pci_physfn(struct pci_dev *dev) @@@ -456,26 -459,26 +456,26 @@@ static inline int pci_channel_offline(s } struct pci_host_bridge { - struct device dev; - struct pci_bus *bus; /* root bus */ - struct pci_ops *ops; - void *sysdata; - int busnr; + struct device dev; + struct pci_bus *bus; /* Root bus */ + struct pci_ops *ops; + void *sysdata; + int busnr; struct list_head windows; /* resource_entry */ - u8 (*swizzle_irq)(struct pci_dev *, u8 *); /* platform IRQ swizzler */ + u8 (*swizzle_irq)(struct pci_dev *, u8 *); /* Platform IRQ swizzler */ int (*map_irq)(const struct pci_dev *, u8, u8); void (*release_fn)(struct pci_host_bridge *); - void *release_data; + void *release_data; struct msi_controller *msi; - unsigned int ignore_reset_delay:1; /* for entire hierarchy */ - unsigned int no_ext_tags:1; /* no Extended Tags */ + unsigned int ignore_reset_delay:1; /* For entire hierarchy */ + unsigned int no_ext_tags:1; /* No Extended Tags */ /* Resource alignment requirements */ resource_size_t (*align_resource)(struct pci_dev *dev, const struct resource *res, resource_size_t start, resource_size_t size, resource_size_t align); - unsigned long private[0] ____cacheline_aligned; + unsigned long private[0] ____cacheline_aligned; }; #define to_pci_host_bridge(n) container_of(n, struct pci_host_bridge, dev) @@@ -497,8 -500,8 +497,8 @@@ void pci_free_host_bridge(struct pci_ho struct pci_host_bridge *pci_find_host_bridge(struct pci_bus *bus); void pci_set_host_bridge_release(struct pci_host_bridge *bridge, - void (*release_fn)(struct pci_host_bridge *), - void *release_data); + void (*release_fn)(struct pci_host_bridge *), + void *release_data); int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge); @@@ -518,32 -521,32 +518,32 @@@ #define PCI_SUBTRACTIVE_DECODE 0x1 struct pci_bus_resource { - struct list_head list; - struct resource *res; - unsigned int flags; + struct list_head list; + struct resource *res; + unsigned int flags; }; #define PCI_REGION_FLAG_MASK 0x0fU /* These bits of resource flags tell us the PCI region flags */ struct pci_bus { - struct list_head node; /* node in list of buses */ - struct pci_bus *parent; /* parent bus this bridge is on */ - struct list_head children; /* list of child buses */ - struct list_head devices; /* list of devices on this bus */ - struct pci_dev *self; /* bridge device as seen by parent */ - struct list_head slots; /* list of slots on this bus; + struct list_head node; /* Node in list of buses */ + struct pci_bus *parent; /* Parent bus this bridge is on */ + struct list_head children; /* List of child buses */ + struct list_head devices; /* List of devices on this bus */ + struct pci_dev *self; /* Bridge device as seen by parent */ + struct list_head slots; /* List of slots on this bus; protected by pci_slot_mutex */ struct resource *resource[PCI_BRIDGE_RESOURCE_NUM]; - struct list_head resources; /* address space routed to this bus */ - struct resource busn_res; /* bus numbers routed to this bus */ + struct list_head resources; /* Address space routed to this bus */ + struct resource busn_res; /* Bus numbers routed to this bus */ - struct pci_ops *ops; /* configuration access functions */ + struct pci_ops *ops; /* Configuration access functions */ struct msi_controller *msi; /* MSI controller */ - void *sysdata; /* hook for sys-specific extension */ - struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */ + void *sysdata; /* Hook for sys-specific extension */ + struct proc_dir_entry *procdir; /* Directory entry in /proc/bus/pci */ - unsigned char number; /* bus number */ - unsigned char primary; /* number of primary bridge */ + unsigned char number; /* Bus number */ + unsigned char primary; /* Number of primary bridge */ unsigned char max_bus_speed; /* enum pci_bus_speed */ unsigned char cur_bus_speed; /* enum pci_bus_speed */ #ifdef CONFIG_PCI_DOMAINS_GENERIC @@@ -552,12 -555,12 +552,12 @@@ char name[48]; - unsigned short bridge_ctl; /* manage NO_ISA/FBB/et al behaviors */ - pci_bus_flags_t bus_flags; /* inherited by child buses */ + unsigned short bridge_ctl; /* Manage NO_ISA/FBB/et al behaviors */ + pci_bus_flags_t bus_flags; /* Inherited by child buses */ struct device *bridge; struct device dev; - struct bin_attribute *legacy_io; /* legacy I/O for this bus */ - struct bin_attribute *legacy_mem; /* legacy mem */ + struct bin_attribute *legacy_io; /* Legacy I/O for this bus */ + struct bin_attribute *legacy_mem; /* Legacy mem */ unsigned int is_added:1; }; @@@ -614,7 -617,9 +614,7 @@@ static inline bool pci_dev_msi_enabled( static inline bool pci_dev_msi_enabled(struct pci_dev *pci_dev) { return false; } #endif -/* - * Error values that may be returned by PCI functions. - */ +/* Error values that may be returned by PCI functions */ #define PCIBIOS_SUCCESSFUL 0x00 #define PCIBIOS_FUNC_NOT_SUPPORTED 0x81 #define PCIBIOS_BAD_VENDOR_ID 0x83 @@@ -623,7 -628,9 +623,7 @@@ #define PCIBIOS_SET_FAILED 0x88 #define PCIBIOS_BUFFER_TOO_SMALL 0x89 -/* - * Translate above to generic errno for passing back through non-PCI code. - */ +/* Translate above to generic errno for passing back through non-PCI code */ static inline int pcibios_err_to_errno(int err) { if (err <= PCIBIOS_SUCCESSFUL) @@@ -673,13 -680,13 +673,13 @@@ typedef u32 pci_bus_addr_t #endif struct pci_bus_region { - pci_bus_addr_t start; - pci_bus_addr_t end; + pci_bus_addr_t start; + pci_bus_addr_t end; }; struct pci_dynids { - spinlock_t lock; /* protects list, index */ - struct list_head list; /* for IDs added at runtime */ + spinlock_t lock; /* Protects list, index */ + struct list_head list; /* For IDs added at runtime */ }; @@@ -693,13 -700,13 +693,13 @@@ typedef unsigned int __bitwise pci_ers_result_t; enum pci_ers_result { - /* no result/none/not supported in device driver */ + /* No result/none/not supported in device driver */ PCI_ERS_RESULT_NONE = (__force pci_ers_result_t) 1, /* Device driver can recover without slot reset */ PCI_ERS_RESULT_CAN_RECOVER = (__force pci_ers_result_t) 2, - /* Device driver wants slot to be reset. */ + /* Device driver wants slot to be reset */ PCI_ERS_RESULT_NEED_RESET = (__force pci_ers_result_t) 3, /* Device has completely failed, is unrecoverable */ @@@ -735,27 -742,27 +735,27 @@@ struct pci_error_handlers struct module; struct pci_driver { - struct list_head node; - const char *name; - const struct pci_device_id *id_table; /* must be non-NULL for probe to be called */ - int (*probe) (struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */ - void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ - int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */ - int (*suspend_late) (struct pci_dev *dev, pm_message_t state); - int (*resume_early) (struct pci_dev *dev); - int (*resume) (struct pci_dev *dev); /* Device woken up */ + struct list_head node; + const char *name; + const struct pci_device_id *id_table; /* Must be non-NULL for probe to be called */ + int (*probe)(struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */ + void (*remove)(struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ + int (*suspend)(struct pci_dev *dev, pm_message_t state); /* Device suspended */ + int (*suspend_late)(struct pci_dev *dev, pm_message_t state); + int (*resume_early)(struct pci_dev *dev); + int (*resume) (struct pci_dev *dev); /* Device woken up */ void (*shutdown) (struct pci_dev *dev); - int (*sriov_configure) (struct pci_dev *dev, int num_vfs); /* PF pdev */ + int (*sriov_configure) (struct pci_dev *dev, int num_vfs); /* On PF */ const struct pci_error_handlers *err_handler; const struct attribute_group **groups; struct device_driver driver; - struct pci_dynids dynids; + struct pci_dynids dynids; }; #define to_pci_driver(drv) container_of(drv, struct pci_driver, driver) /** - * PCI_DEVICE - macro used to describe a specific pci device + * PCI_DEVICE - macro used to describe a specific PCI device * @vend: the 16 bit PCI Vendor ID * @dev: the 16 bit PCI Device ID * @@@ -768,7 -775,7 +768,7 @@@ .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID /** - * PCI_DEVICE_SUB - macro used to describe a specific pci device with subsystem + * PCI_DEVICE_SUB - macro used to describe a specific PCI device with subsystem * @vend: the 16 bit PCI Vendor ID * @dev: the 16 bit PCI Device ID * @subvend: the 16 bit PCI Subvendor ID @@@ -782,7 -789,7 +782,7 @@@ .subvendor = (subvend), .subdevice = (subdev) /** - * PCI_DEVICE_CLASS - macro used to describe a specific pci device class + * PCI_DEVICE_CLASS - macro used to describe a specific PCI device class * @dev_class: the class, subclass, prog-if triple for this device * @dev_class_mask: the class mask for this device * @@@ -796,7 -803,7 +796,7 @@@ .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID /** - * PCI_VDEVICE - macro used to describe a specific pci device in short form + * PCI_VDEVICE - macro used to describe a specific PCI device in short form * @vend: the vendor name * @dev: the 16 bit PCI Device ID * @@@ -805,21 -812,22 +805,21 @@@ * to PCI_ANY_ID. The macro allows the next field to follow as the device * private data. */ - #define PCI_VDEVICE(vend, dev) \ .vendor = PCI_VENDOR_ID_##vend, .device = (dev), \ .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, 0, 0 enum { - PCI_REASSIGN_ALL_RSRC = 0x00000001, /* ignore firmware setup */ - PCI_REASSIGN_ALL_BUS = 0x00000002, /* reassign all bus numbers */ - PCI_PROBE_ONLY = 0x00000004, /* use existing setup */ - PCI_CAN_SKIP_ISA_ALIGN = 0x00000008, /* don't do ISA alignment */ - PCI_ENABLE_PROC_DOMAINS = 0x00000010, /* enable domains in /proc */ + PCI_REASSIGN_ALL_RSRC = 0x00000001, /* Ignore firmware setup */ + PCI_REASSIGN_ALL_BUS = 0x00000002, /* Reassign all bus numbers */ + PCI_PROBE_ONLY = 0x00000004, /* Use existing setup */ + PCI_CAN_SKIP_ISA_ALIGN = 0x00000008, /* Don't do ISA alignment */ + PCI_ENABLE_PROC_DOMAINS = 0x00000010, /* Enable domains in /proc */ PCI_COMPAT_DOMAIN_0 = 0x00000020, /* ... except domain 0 */ - PCI_SCAN_ALL_PCIE_DEVS = 0x00000040, /* scan all, not just dev 0 */ + PCI_SCAN_ALL_PCIE_DEVS = 0x00000040, /* Scan all, not just dev 0 */ }; -/* these external functions are only available when PCI support is enabled */ +/* These external functions are only available when PCI support is enabled */ #ifdef CONFIG_PCI extern unsigned int pci_flags; @@@ -832,11 -840,11 +832,11 @@@ static inline int pci_has_flag(int flag void pcie_bus_configure_settings(struct pci_bus *bus); enum pcie_bus_config_types { - PCIE_BUS_TUNE_OFF, /* don't touch MPS at all */ - PCIE_BUS_DEFAULT, /* ensure MPS matches upstream bridge */ - PCIE_BUS_SAFE, /* use largest MPS boot-time devices support */ - PCIE_BUS_PERFORMANCE, /* use MPS and MRRS for best performance */ - PCIE_BUS_PEER2PEER, /* set MPS = 128 for all devices */ + PCIE_BUS_TUNE_OFF, /* Don't touch MPS at all */ + PCIE_BUS_DEFAULT, /* Ensure MPS matches upstream bridge */ + PCIE_BUS_SAFE, /* Use largest MPS boot-time devices support */ + PCIE_BUS_PERFORMANCE, /* Use MPS and MRRS for best performance */ + PCIE_BUS_PEER2PEER, /* Set MPS = 128 for all devices */ }; extern enum pcie_bus_config_types pcie_bus_config; @@@ -845,7 -853,7 +845,7 @@@ extern struct bus_type pci_bus_type /* Do NOT directly access these two variables, unless you are arch-specific PCI * code, or PCI core code. */ -extern struct list_head pci_root_buses; /* list of all known PCI buses */ +extern struct list_head pci_root_buses; /* List of all known PCI buses */ /* Some device drivers need know if PCI is initiated */ int no_pci_devices(void); @@@ -883,8 -891,8 +883,8 @@@ int pci_bus_insert_busn_res(struct pci_ int pci_bus_update_busn_res_end(struct pci_bus *b, int busmax); void pci_bus_release_busn_res(struct pci_bus *b); struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, - struct pci_ops *ops, void *sysdata, - struct list_head *resources); + struct pci_ops *ops, void *sysdata, + struct list_head *resources); int pci_scan_root_bus_bridge(struct pci_host_bridge *bridge); struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr); @@@ -941,10 -949,10 +941,10 @@@ int pci_find_next_ht_capability(struct struct pci_bus *pci_find_next_bus(const struct pci_bus *from); struct pci_dev *pci_get_device(unsigned int vendor, unsigned int device, - struct pci_dev *from); + struct pci_dev *from); struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device, - unsigned int ss_vendor, unsigned int ss_device, - struct pci_dev *from); + unsigned int ss_vendor, unsigned int ss_device, + struct pci_dev *from); struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn); struct pci_dev *pci_get_domain_bus_and_slot(int domain, unsigned int bus, unsigned int devfn); @@@ -1020,7 -1028,7 +1020,7 @@@ static inline int pcie_capability_clear return pcie_capability_clear_and_set_dword(dev, pos, clear, 0); } -/* user-space driven config access */ +/* User-space driven config access */ int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val); int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val); int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val); @@@ -1064,6 -1072,7 +1064,7 @@@ int pci_set_pcie_reset_state(struct pci int pci_set_cacheline_size(struct pci_dev *dev); #define HAVE_PCI_SET_MWI int __must_check pci_set_mwi(struct pci_dev *dev); + int __must_check pcim_set_mwi(struct pci_dev *dev); int pci_try_set_mwi(struct pci_dev *dev); void pci_clear_mwi(struct pci_dev *dev); void pci_intx(struct pci_dev *dev, int enable); @@@ -1162,7 -1171,7 +1163,7 @@@ unsigned int pci_rescan_bus(struct pci_ void pci_lock_rescan_remove(void); void pci_unlock_rescan_remove(void); -/* Vital product data routines */ +/* Vital Product Data routines */ ssize_t pci_read_vpd(struct pci_dev *dev, loff_t pos, size_t count, void *buf); ssize_t pci_write_vpd(struct pci_dev *dev, loff_t pos, size_t count, const void *buf); int pci_set_vpd_size(struct pci_dev *dev, size_t len); @@@ -1247,7 -1256,9 +1248,7 @@@ static inline pci_bus_addr_t pci_bus_ad int __must_check __pci_register_driver(struct pci_driver *, struct module *, const char *mod_name); -/* - * pci_register_driver must be a macro so that KBUILD_MODNAME can be expanded - */ +/* pci_register_driver() must be a macro so KBUILD_MODNAME can be expanded */ #define pci_register_driver(driver) \ __pci_register_driver(driver, THIS_MODULE, KBUILD_MODNAME) @@@ -1262,7 -1273,8 +1263,7 @@@ void pci_unregister_driver(struct pci_d * use this macro once, and calling it replaces module_init() and module_exit() */ #define module_pci_driver(__pci_driver) \ - module_driver(__pci_driver, pci_register_driver, \ - pci_unregister_driver) + module_driver(__pci_driver, pci_register_driver, pci_unregister_driver) /** * builtin_pci_driver() - Helper macro for registering a PCI driver @@@ -1301,10 -1313,10 +1302,10 @@@ resource_size_t pcibios_iov_resource_al int pci_set_vga_state(struct pci_dev *pdev, bool decode, unsigned int command_bits, u32 flags); -#define PCI_IRQ_LEGACY (1 << 0) /* allow legacy interrupts */ -#define PCI_IRQ_MSI (1 << 1) /* allow MSI interrupts */ -#define PCI_IRQ_MSIX (1 << 2) /* allow MSI-X interrupts */ -#define PCI_IRQ_AFFINITY (1 << 3) /* auto-assign affinity */ +#define PCI_IRQ_LEGACY (1 << 0) /* Allow legacy interrupts */ +#define PCI_IRQ_MSI (1 << 1) /* Allow MSI interrupts */ +#define PCI_IRQ_MSIX (1 << 2) /* Allow MSI-X interrupts */ +#define PCI_IRQ_AFFINITY (1 << 3) /* Auto-assign affinity */ #define PCI_IRQ_ALL_TYPES \ (PCI_IRQ_LEGACY | PCI_IRQ_MSI | PCI_IRQ_MSIX) @@@ -1323,8 -1335,8 +1324,8 @@@ #define pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr) struct msix_entry { - u32 vector; /* kernel uses to write allocated vector */ - u16 entry; /* driver uses to specify entry, OS writes */ + u32 vector; /* Kernel uses to write allocated vector */ + u16 entry; /* Driver uses to specify entry, OS writes */ }; #ifdef CONFIG_PCI_MSI @@@ -1364,10 -1376,10 +1365,10 @@@ static inline int pci_msi_enabled(void static inline int pci_enable_msi(struct pci_dev *dev) { return -ENOSYS; } static inline int pci_enable_msix_range(struct pci_dev *dev, - struct msix_entry *entries, int minvec, int maxvec) + struct msix_entry *entries, int minvec, int maxvec) { return -ENOSYS; } static inline int pci_enable_msix_exact(struct pci_dev *dev, - struct msix_entry *entries, int nvec) + struct msix_entry *entries, int nvec) { return -ENOSYS; } static inline int @@@ -1532,9 -1544,9 +1533,9 @@@ static inline int acpi_pci_bus_find_dom int pci_bus_find_domain_nr(struct pci_bus *bus, struct device *parent); #endif -/* some architectures require additional setup to direct VGA traffic */ +/* Some architectures require additional setup to direct VGA traffic */ typedef int (*arch_set_vga_state_t)(struct pci_dev *pdev, bool decode, - unsigned int command_bits, u32 flags); + unsigned int command_bits, u32 flags); void pci_register_set_vga_state(arch_set_vga_state_t func); static inline int @@@ -1573,9 -1585,10 +1574,9 @@@ static inline void pci_clear_flags(int static inline int pci_has_flag(int flag) { return 0; } /* - * If the system does not have PCI, clearly these return errors. Define - * these as simple inline functions to avoid hair in drivers. + * If the system does not have PCI, clearly these return errors. Define + * these as simple inline functions to avoid hair in drivers. */ - #define _PCI_NOP(o, s, t) \ static inline int pci_##o##_config_##s(struct pci_dev *dev, \ int where, t val) \ @@@ -1714,10 -1727,8 +1715,10 @@@ int pci_iobar_pfn(struct pci_dev *pdev #define pci_root_bus_fwnode(bus) NULL #endif -/* these helpers provide future and backwards compatibility - * for accessing popular PCI BAR info */ +/* + * These helpers provide future and backwards compatibility + * for accessing popular PCI BAR info + */ #define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start) #define pci_resource_end(dev, bar) ((dev)->resource[(bar)].end) #define pci_resource_flags(dev, bar) ((dev)->resource[(bar)].flags) @@@ -1729,8 -1740,7 +1730,8 @@@ (pci_resource_end((dev), (bar)) - \ pci_resource_start((dev), (bar)) + 1)) -/* Similar to the helpers above, these manipulate per-pci_dev +/* + * Similar to the helpers above, these manipulate per-pci_dev * driver-specific data. They are really just a wrapper around * the generic device structure functions of these calls. */ @@@ -1744,14 -1754,16 +1745,14 @@@ static inline void pci_set_drvdata(stru dev_set_drvdata(&pdev->dev, data); } -/* If you want to know what to call your pci_dev, ask this function. - * Again, it's a wrapper around the generic device. - */ static inline const char *pci_name(const struct pci_dev *pdev) { return dev_name(&pdev->dev); } -/* Some archs don't want to expose struct resource to userland as-is +/* + * Some archs don't want to expose struct resource to userland as-is * in sysfs and /proc */ #ifdef HAVE_ARCH_PCI_RESOURCE_TO_USER @@@ -1770,16 -1782,16 +1771,16 @@@ static inline void pci_resource_to_user /* - * The world is not perfect and supplies us with broken PCI devices. - * For at least a part of these bugs we need a work-around, so both - * generic (drivers/pci/quirks.c) and per-architecture code can define - * fixup hooks to be called for particular buggy devices. + * The world is not perfect and supplies us with broken PCI devices. + * For at least a part of these bugs we need a work-around, so both + * generic (drivers/pci/quirks.c) and per-architecture code can define + * fixup hooks to be called for particular buggy devices. */ struct pci_fixup { - u16 vendor; /* You can use PCI_ANY_ID here of course */ - u16 device; /* You can use PCI_ANY_ID here of course */ - u32 class; /* You can use PCI_ANY_ID here too */ + u16 vendor; /* Or PCI_ANY_ID */ + u16 device; /* Or PCI_ANY_ID */ + u32 class; /* Or PCI_ANY_ID */ unsigned int class_shift; /* should be 0, 8, 16 */ void (*hook)(struct pci_dev *dev); }; @@@ -1821,19 -1833,23 +1822,19 @@@ enum pci_fixup_pass #define DECLARE_PCI_FIXUP_CLASS_RESUME(vendor, device, class, \ class_shift, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume, \ - resume##hook, vendor, device, class, \ - class_shift, hook) + resume##hook, vendor, device, class, class_shift, hook) #define DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(vendor, device, class, \ class_shift, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume_early, \ - resume_early##hook, vendor, device, \ - class, class_shift, hook) + resume_early##hook, vendor, device, class, class_shift, hook) #define DECLARE_PCI_FIXUP_CLASS_SUSPEND(vendor, device, class, \ class_shift, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_suspend, \ - suspend##hook, vendor, device, class, \ - class_shift, hook) + suspend##hook, vendor, device, class, class_shift, hook) #define DECLARE_PCI_FIXUP_CLASS_SUSPEND_LATE(vendor, device, class, \ class_shift, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_suspend_late, \ - suspend_late##hook, vendor, device, \ - class, class_shift, hook) + suspend_late##hook, vendor, device, class, class_shift, hook) #define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early, \ @@@ -1849,16 -1865,20 +1850,16 @@@ hook, vendor, device, PCI_ANY_ID, 0, hook) #define DECLARE_PCI_FIXUP_RESUME(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume, \ - resume##hook, vendor, device, \ - PCI_ANY_ID, 0, hook) + resume##hook, vendor, device, PCI_ANY_ID, 0, hook) #define DECLARE_PCI_FIXUP_RESUME_EARLY(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume_early, \ - resume_early##hook, vendor, device, \ - PCI_ANY_ID, 0, hook) + resume_early##hook, vendor, device, PCI_ANY_ID, 0, hook) #define DECLARE_PCI_FIXUP_SUSPEND(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_suspend, \ - suspend##hook, vendor, device, \ - PCI_ANY_ID, 0, hook) + suspend##hook, vendor, device, PCI_ANY_ID, 0, hook) #define DECLARE_PCI_FIXUP_SUSPEND_LATE(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_suspend_late, \ - suspend_late##hook, vendor, device, \ - PCI_ANY_ID, 0, hook) + suspend_late##hook, vendor, device, PCI_ANY_ID, 0, hook) #ifdef CONFIG_PCI_QUIRKS void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev); @@@ -1945,7 -1965,6 +1946,7 @@@ int pci_vfs_assigned(struct pci_dev *de int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs); int pci_sriov_get_totalvfs(struct pci_dev *dev); resource_size_t pci_iov_resource_size(struct pci_dev *dev, int resno); +void pci_vf_drivers_autoprobe(struct pci_dev *dev, bool probe); #else static inline int pci_iov_virtfn_bus(struct pci_dev *dev, int id) { @@@ -1973,7 -1992,6 +1974,7 @@@ static inline int pci_sriov_get_totalvf { return 0; } static inline resource_size_t pci_iov_resource_size(struct pci_dev *dev, int resno) { return 0; } +static inline void pci_vf_drivers_autoprobe(struct pci_dev *dev, bool probe) { } #endif #if defined(CONFIG_HOTPLUG_PCI) || defined(CONFIG_HOTPLUG_PCI_MODULE) @@@ -2095,7 -2113,7 +2096,7 @@@ static inline u16 pci_vpd_lrdt_size(con */ static inline u16 pci_vpd_lrdt_tag(const u8 *lrdt) { - return (u16)(lrdt[0] & PCI_VPD_LRDT_TIN_MASK); + return (u16)(lrdt[0] & PCI_VPD_LRDT_TIN_MASK); } /** @@@ -2180,7 -2198,7 +2181,7 @@@ static inline struct device_node *pci_b return bus ? bus->dev.of_node : NULL; } -#else /* CONFIG_OF */ +#else /* CONFIG_OF */ static inline void pci_set_of_node(struct pci_dev *dev) { } static inline void pci_release_of_node(struct pci_dev *dev) { } static inline void pci_set_bus_of_node(struct pci_bus *bus) { } @@@ -2189,7 -2207,7 +2190,7 @@@ static inline struct device_node pci_device_to_OF_node(const struct pci_dev *pdev) { return NULL; } static inline struct irq_domain * pci_host_bridge_of_msi_domain(struct pci_bus *bus) { return NULL; } -#endif /* CONFIG_OF */ +#endif /* CONFIG_OF */ #ifdef CONFIG_ACPI struct irq_domain *pci_host_bridge_acpi_msi_domain(struct pci_bus *bus); @@@ -2214,7 -2232,7 +2215,7 @@@ int pci_for_each_dma_alias(struct pci_d int (*fn)(struct pci_dev *pdev, u16 alias, void *data), void *data); -/* helper functions for operation of device flag */ +/* Helper functions for operation of device flag */ static inline void pci_set_dev_assigned(struct pci_dev *pdev) { pdev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED; @@@ -2261,7 -2279,7 +2262,7 @@@ static inline bool pci_is_thunderbolt_a return false; } -/* provide the legacy pci_dma_* API */ +/* Provide the legacy pci_dma_* API */ #include <linux/pci-dma-compat.h> #endif /* LINUX_PCI_H */ diff --combined include/linux/skbuff.h index a87e43d16f44,b8e0da6c27d6..ac89a93b7c83 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@@ -1211,6 -1211,11 +1211,11 @@@ static inline bool skb_flow_dissect_flo data, proto, nhoff, hlen, flags); } + void + skb_flow_dissect_tunnel_info(const struct sk_buff *skb, + struct flow_dissector *flow_dissector, + void *target_container); + static inline __u32 skb_get_hash(struct sk_buff *skb) { if (!skb->l4_hash && !skb->sw_hash) @@@ -3241,7 -3246,7 +3246,7 @@@ struct sk_buff *__skb_recv_datagram(str int *peeked, int *off, int *err); struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock, int *err); -unsigned int datagram_poll(struct file *file, struct socket *sock, +__poll_t datagram_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); int skb_copy_datagram_iter(const struct sk_buff *from, int offset, struct iov_iter *to, int size); diff --combined include/net/inet_connection_sock.h index ec72cdb5bc39,8e1bf9ae4a5e..6692d67e9245 --- a/include/net/inet_connection_sock.h +++ b/include/net/inet_connection_sock.h @@@ -77,6 -77,7 +77,7 @@@ struct inet_connection_sock_af_ops * @icsk_af_ops Operations which are AF_INET{4,6} specific * @icsk_ulp_ops Pluggable ULP control hook * @icsk_ulp_data ULP private data + * @icsk_listen_portaddr_node hash to the portaddr listener hashtable * @icsk_ca_state: Congestion control state * @icsk_retransmits: Number of unrecovered [RTO] timeouts * @icsk_pending: Scheduled timer event @@@ -101,6 -102,7 +102,7 @@@ struct inet_connection_sock const struct inet_connection_sock_af_ops *icsk_af_ops; const struct tcp_ulp_ops *icsk_ulp_ops; void *icsk_ulp_data; + struct hlist_node icsk_listen_portaddr_node; unsigned int (*icsk_sync_mss)(struct sock *sk, u32 pmtu); __u8 icsk_ca_state:6, icsk_ca_setsockopt:1, @@@ -305,7 -307,7 +307,7 @@@ void inet_csk_prepare_forced_close(stru /* * LISTEN is a special case for poll.. */ -static inline unsigned int inet_csk_listen_poll(const struct sock *sk) +static inline __poll_t inet_csk_listen_poll(const struct sock *sk) { return !reqsk_queue_empty(&inet_csk(sk)->icsk_accept_queue) ? (POLLIN | POLLRDNORM) : 0; diff --combined include/net/sctp/sctp.h index 608d123ef25f,20c0c1be2ca7..f7ae6b0a21d0 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@@ -107,7 -107,7 +107,7 @@@ int sctp_backlog_rcv(struct sock *sk, s int sctp_inet_listen(struct socket *sock, int backlog); void sctp_write_space(struct sock *sk); void sctp_data_ready(struct sock *sk); -unsigned int sctp_poll(struct file *file, struct socket *sock, +__poll_t sctp_poll(struct file *file, struct socket *sock, poll_table *wait); void sctp_sock_rfree(struct sk_buff *skb); void sctp_copy_sock(struct sock *newsk, struct sock *sk, @@@ -116,7 -116,7 +116,7 @@@ extern struct percpu_counter sctp_socke int sctp_asconf_mgmt(struct sctp_sock *, struct sctp_sockaddr_entry *); struct sk_buff *sctp_skb_recv_datagram(struct sock *, int, int, int *); - int sctp_transport_walk_start(struct rhashtable_iter *iter); + void sctp_transport_walk_start(struct rhashtable_iter *iter); void sctp_transport_walk_stop(struct rhashtable_iter *iter); struct sctp_transport *sctp_transport_get_next(struct net *net, struct rhashtable_iter *iter); @@@ -444,13 -444,13 +444,13 @@@ static inline int sctp_frag_point(cons int frag = pmtu; frag -= sp->pf->af->net_header_len; - frag -= sizeof(struct sctphdr) + sizeof(struct sctp_data_chunk); + frag -= sizeof(struct sctphdr) + sctp_datachk_len(&asoc->stream); if (asoc->user_frag) frag = min_t(int, frag, asoc->user_frag); frag = SCTP_TRUNC4(min_t(int, frag, SCTP_MAX_CHUNK_LEN - - sizeof(struct sctp_data_chunk))); + sctp_datachk_len(&asoc->stream))); return frag; } diff --combined include/net/sock.h index 4fd74e0d1bbb,66fd3951e6f3..57750cdd67d8 --- a/include/net/sock.h +++ b/include/net/sock.h @@@ -1262,6 -1262,7 +1262,7 @@@ proto_memory_pressure(struct proto *pro /* Called with local bh disabled */ void sock_prot_inuse_add(struct net *net, struct proto *prot, int inc); int sock_prot_inuse_get(struct net *net, struct proto *proto); + int sock_inuse_get(struct net *net); #else static inline void sock_prot_inuse_add(struct net *net, struct proto *prot, int inc) @@@ -1583,7 -1584,7 +1584,7 @@@ int sock_no_connect(struct socket *, st int sock_no_socketpair(struct socket *, struct socket *); int sock_no_accept(struct socket *, struct socket *, int, bool); int sock_no_getname(struct socket *, struct sockaddr *, int *, int); -unsigned int sock_no_poll(struct file *, struct socket *, +__poll_t sock_no_poll(struct file *, struct socket *, struct poll_table_struct *); int sock_no_ioctl(struct socket *, unsigned int, unsigned long); int sock_no_listen(struct socket *, int); @@@ -2337,31 -2338,6 +2338,6 @@@ static inline bool sk_listener(const st return (1 << sk->sk_state) & (TCPF_LISTEN | TCPF_NEW_SYN_RECV); } - /** - * sk_state_load - read sk->sk_state for lockless contexts - * @sk: socket pointer - * - * Paired with sk_state_store(). Used in places we do not hold socket lock : - * tcp_diag_get_info(), tcp_get_info(), tcp_poll(), get_tcp4_sock() ... - */ - static inline int sk_state_load(const struct sock *sk) - { - return smp_load_acquire(&sk->sk_state); - } - - /** - * sk_state_store - update sk->sk_state - * @sk: socket pointer - * @newstate: new state - * - * Paired with sk_state_load(). Should be used in contexts where - * state change might impact lockless readers. - */ - static inline void sk_state_store(struct sock *sk, int newstate) - { - smp_store_release(&sk->sk_state, newstate); - } - void sock_enable_timestamp(struct sock *sk, int flag); int sock_get_timestamp(struct sock *, struct timeval __user *); int sock_get_timestampns(struct sock *, struct timespec __user *); @@@ -2412,4 -2388,15 +2388,15 @@@ static inline int sk_get_rmem0(const st return *proto->sysctl_rmem; } + /* Default TCP Small queue budget is ~1 ms of data (1sec >> 10) + * Some wifi drivers need to tweak it to get more chunks. + * They can use this helper from their ndo_start_xmit() + */ + static inline void sk_pacing_shift_update(struct sock *sk, int val) + { + if (!sk || !sk_fullsock(sk) || sk->sk_pacing_shift == val) + return; + sk->sk_pacing_shift = val; + } + #endif /* _SOCK_H */ diff --combined include/net/tcp.h index 50b21a49d870,6939e69d3c37..26c2793846a1 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@@ -387,7 -387,7 +387,7 @@@ bool tcp_peer_is_proven(struct request_ void tcp_close(struct sock *sk, long timeout); void tcp_init_sock(struct sock *sk); void tcp_init_transfer(struct sock *sk, int bpf_op); -unsigned int tcp_poll(struct file *file, struct socket *sock, +__poll_t tcp_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); @@@ -1507,8 -1507,7 +1507,7 @@@ int tcp_md5_hash_key(struct tcp_md5sig_ /* From tcp_fastopen.c */ void tcp_fastopen_cache_get(struct sock *sk, u16 *mss, - struct tcp_fastopen_cookie *cookie, int *syn_loss, - unsigned long *last_syn_loss); + struct tcp_fastopen_cookie *cookie); void tcp_fastopen_cache_set(struct sock *sk, u16 mss, struct tcp_fastopen_cookie *cookie, bool syn_lost, u16 try_exp); @@@ -1546,7 -1545,7 +1545,7 @@@ extern unsigned int sysctl_tcp_fastopen void tcp_fastopen_active_disable(struct sock *sk); bool tcp_fastopen_active_should_disable(struct sock *sk); void tcp_fastopen_active_disable_ofo_check(struct sock *sk); - void tcp_fastopen_active_timeout_reset(void); + void tcp_fastopen_active_detect_blackhole(struct sock *sk, bool expired); /* Latencies incurred by various limits for a sender. They are * chronograph-like stats that are mutually exclusive. @@@ -2011,10 -2010,12 +2010,12 @@@ static inline int tcp_call_bpf(struct s struct bpf_sock_ops_kern sock_ops; int ret; - if (sk_fullsock(sk)) + memset(&sock_ops, 0, sizeof(sock_ops)); + if (sk_fullsock(sk)) { + sock_ops.is_fullsock = 1; sock_owned_by_me(sk); + } - memset(&sock_ops, 0, sizeof(sock_ops)); sock_ops.sk = sk; sock_ops.op = op; diff --combined kernel/bpf/syscall.c index 5cb783fc8224,007802c5ca7d..f35ce7e70c90 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@@ -937,10 -937,16 +937,16 @@@ static void __bpf_prog_put_rcu(struct r static void __bpf_prog_put(struct bpf_prog *prog, bool do_idr_lock) { if (atomic_dec_and_test(&prog->aux->refcnt)) { + int i; + trace_bpf_prog_put_rcu(prog); /* bpf_prog_free_id() must be called first */ bpf_prog_free_id(prog, do_idr_lock); + + for (i = 0; i < prog->aux->func_cnt; i++) + bpf_prog_kallsyms_del(prog->aux->func[i]); bpf_prog_kallsyms_del(prog); + call_rcu(&prog->aux->rcu, __bpf_prog_put_rcu); } } @@@ -1057,7 -1063,7 +1063,7 @@@ struct bpf_prog *bpf_prog_inc_not_zero( } EXPORT_SYMBOL_GPL(bpf_prog_inc_not_zero); -static bool bpf_prog_get_ok(struct bpf_prog *prog, +bool bpf_prog_get_ok(struct bpf_prog *prog, enum bpf_prog_type *attach_type, bool attach_drv) { /* not an attachment, just a refcount inc, always allow */ @@@ -1194,7 -1200,8 +1200,8 @@@ static int bpf_prog_load(union bpf_att goto free_used_maps; /* eBPF program is ready to be JITed */ - prog = bpf_prog_select_runtime(prog, &err); + if (!prog->bpf_func) + prog = bpf_prog_select_runtime(prog, &err); if (err < 0) goto free_used_maps; @@@ -1551,6 -1558,67 +1558,67 @@@ static int bpf_map_get_fd_by_id(const u return fd; } + static const struct bpf_map *bpf_map_from_imm(const struct bpf_prog *prog, + unsigned long addr) + { + int i; + + for (i = 0; i < prog->aux->used_map_cnt; i++) + if (prog->aux->used_maps[i] == (void *)addr) + return prog->aux->used_maps[i]; + return NULL; + } + + static struct bpf_insn *bpf_insn_prepare_dump(const struct bpf_prog *prog) + { + const struct bpf_map *map; + struct bpf_insn *insns; + u64 imm; + int i; + + insns = kmemdup(prog->insnsi, bpf_prog_insn_size(prog), + GFP_USER); + if (!insns) + return insns; + + for (i = 0; i < prog->len; i++) { + if (insns[i].code == (BPF_JMP | BPF_TAIL_CALL)) { + insns[i].code = BPF_JMP | BPF_CALL; + insns[i].imm = BPF_FUNC_tail_call; + /* fall-through */ + } + if (insns[i].code == (BPF_JMP | BPF_CALL) || + insns[i].code == (BPF_JMP | BPF_CALL_ARGS)) { + if (insns[i].code == (BPF_JMP | BPF_CALL_ARGS)) + insns[i].code = BPF_JMP | BPF_CALL; + if (!bpf_dump_raw_ok()) + insns[i].imm = 0; + continue; + } + + if (insns[i].code != (BPF_LD | BPF_IMM | BPF_DW)) + continue; + + imm = ((u64)insns[i + 1].imm << 32) | (u32)insns[i].imm; + map = bpf_map_from_imm(prog, imm); + if (map) { + insns[i].src_reg = BPF_PSEUDO_MAP_FD; + insns[i].imm = map->id; + insns[i + 1].imm = 0; + continue; + } + + if (!bpf_dump_raw_ok() && + imm == (unsigned long)prog->aux) { + insns[i].imm = 0; + insns[i + 1].imm = 0; + continue; + } + } + + return insns; + } + static int bpf_prog_get_info_by_fd(struct bpf_prog *prog, const union bpf_attr *attr, union bpf_attr __user *uattr) @@@ -1601,18 -1669,34 +1669,34 @@@ ulen = info.jited_prog_len; info.jited_prog_len = prog->jited_len; if (info.jited_prog_len && ulen) { - uinsns = u64_to_user_ptr(info.jited_prog_insns); - ulen = min_t(u32, info.jited_prog_len, ulen); - if (copy_to_user(uinsns, prog->bpf_func, ulen)) - return -EFAULT; + if (bpf_dump_raw_ok()) { + uinsns = u64_to_user_ptr(info.jited_prog_insns); + ulen = min_t(u32, info.jited_prog_len, ulen); + if (copy_to_user(uinsns, prog->bpf_func, ulen)) + return -EFAULT; + } else { + info.jited_prog_insns = 0; + } } ulen = info.xlated_prog_len; info.xlated_prog_len = bpf_prog_insn_size(prog); if (info.xlated_prog_len && ulen) { + struct bpf_insn *insns_sanitized; + bool fault; + + if (prog->blinded && !bpf_dump_raw_ok()) { + info.xlated_prog_insns = 0; + goto done; + } + insns_sanitized = bpf_insn_prepare_dump(prog); + if (!insns_sanitized) + return -ENOMEM; uinsns = u64_to_user_ptr(info.xlated_prog_insns); ulen = min_t(u32, info.xlated_prog_len, ulen); - if (copy_to_user(uinsns, prog->insnsi, ulen)) + fault = copy_to_user(uinsns, insns_sanitized, ulen); + kfree(insns_sanitized); + if (fault) return -EFAULT; } diff --combined kernel/events/core.c index 4dd0e1ea876d,878d86c513d6..812f03e99ef3 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@@ -4511,11 -4511,11 +4511,11 @@@ perf_read(struct file *file, char __use return ret; } -static unsigned int perf_poll(struct file *file, poll_table *wait) +static __poll_t perf_poll(struct file *file, poll_table *wait) { struct perf_event *event = file->private_data; struct ring_buffer *rb; - unsigned int events = POLLHUP; + __poll_t events = POLLHUP; poll_wait(file, &event->waitq, wait); @@@ -4723,6 -4723,9 +4723,9 @@@ static long _perf_ioctl(struct perf_eve rcu_read_unlock(); return 0; } + + case PERF_EVENT_IOC_QUERY_BPF: + return perf_event_query_prog_array(event, (void __user *)arg); default: return -ENOTTY; } @@@ -8080,6 -8083,13 +8083,13 @@@ static int perf_event_set_bpf_prog(stru return -EINVAL; } + /* Kprobe override only works for kprobes, not uprobes. */ + if (prog->kprobe_override && + !(event->tp_event->flags & TRACE_EVENT_FL_KPROBE)) { + bpf_prog_put(prog); + return -EINVAL; + } + if (is_tracepoint || is_syscall_tp) { int off = trace_event_get_offsets(event->tp_event); diff --combined kernel/module.c index 8042b8fcbf14,bd695bfdc5c4..83075a104710 --- a/kernel/module.c +++ b/kernel/module.c @@@ -3118,7 -3118,11 +3118,11 @@@ static int find_module_sections(struct sizeof(*mod->ftrace_callsites), &mod->num_ftrace_callsites); #endif - + #ifdef CONFIG_BPF_KPROBE_OVERRIDE + mod->kprobe_ei_funcs = section_objs(info, "_kprobe_error_inject_list", + sizeof(*mod->kprobe_ei_funcs), + &mod->num_kprobe_ei_funcs); + #endif mod->extable = section_objs(info, "__ex_table", sizeof(*mod->extable), &mod->num_exentries); @@@ -3938,12 -3942,6 +3942,12 @@@ static const char *get_ksymbol(struct m return symname(kallsyms, best); } +void * __weak dereference_module_function_descriptor(struct module *mod, + void *ptr) +{ + return ptr; +} + /* For kallsyms to ask for address resolution. NULL means not found. Careful * not to lock to avoid deadlock on oopses, simply disable preemption. */ const char *module_address_lookup(unsigned long addr, diff --combined net/atm/common.c index 8f12f1c6fa14,5763fd241dc3..6523f38c4957 --- a/net/atm/common.c +++ b/net/atm/common.c @@@ -14,7 -14,7 +14,7 @@@ #include <linux/capability.h> #include <linux/mm.h> #include <linux/sched/signal.h> - #include <linux/time.h> /* struct timeval */ + #include <linux/time64.h> /* 64-bit time for seconds */ #include <linux/skbuff.h> #include <linux/bitops.h> #include <linux/init.h> @@@ -648,11 -648,11 +648,11 @@@ out return error; } -unsigned int vcc_poll(struct file *file, struct socket *sock, poll_table *wait) +__poll_t vcc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct atm_vcc *vcc; - unsigned int mask; + __poll_t mask; sock_poll_wait(file, sk_sleep(sk), wait); mask = 0; diff --combined net/batman-adv/icmp_socket.c index a98e0a986cef,8041cf106c37..581375d0eed2 --- a/net/batman-adv/icmp_socket.c +++ b/net/batman-adv/icmp_socket.c @@@ -1,3 -1,4 +1,4 @@@ + // SPDX-License-Identifier: GPL-2.0 /* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors: * * Marek Lindner @@@ -26,6 -27,7 +27,7 @@@ #include <linux/export.h> #include <linux/fcntl.h> #include <linux/fs.h> + #include <linux/gfp.h> #include <linux/if_ether.h> #include <linux/kernel.h> #include <linux/list.h> @@@ -42,11 -44,11 +44,11 @@@ #include <linux/string.h> #include <linux/uaccess.h> #include <linux/wait.h> + #include <uapi/linux/batadv_packet.h> #include "hard-interface.h" #include "log.h" #include "originator.h" - #include "packet.h" #include "send.h" static struct batadv_socket_client *batadv_socket_client_hash[256]; @@@ -55,6 -57,9 +57,9 @@@ static void batadv_socket_add_packet(st struct batadv_icmp_header *icmph, size_t icmp_len); + /** + * batadv_socket_init() - Initialize soft interface independent socket data + */ void batadv_socket_init(void) { memset(batadv_socket_client_hash, 0, sizeof(batadv_socket_client_hash)); @@@ -292,7 -297,7 +297,7 @@@ out return len; } -static unsigned int batadv_socket_poll(struct file *file, poll_table *wait) +static __poll_t batadv_socket_poll(struct file *file, poll_table *wait) { struct batadv_socket_client *socket_client = file->private_data; @@@ -314,6 -319,12 +319,12 @@@ static const struct file_operations bat .llseek = no_llseek, }; + /** + * batadv_socket_setup() - Create debugfs "socket" file + * @bat_priv: the bat priv with all the soft interface information + * + * Return: 0 on success or negative error number in case of failure + */ int batadv_socket_setup(struct batadv_priv *bat_priv) { struct dentry *d; @@@ -333,7 -344,7 +344,7 @@@ err } /** - * batadv_socket_add_packet - schedule an icmp packet to be sent to + * batadv_socket_add_packet() - schedule an icmp packet to be sent to * userspace on an icmp socket. * @socket_client: the socket this packet belongs to * @icmph: pointer to the header of the icmp packet @@@ -390,7 -401,7 +401,7 @@@ static void batadv_socket_add_packet(st } /** - * batadv_socket_receive_packet - schedule an icmp packet to be received + * batadv_socket_receive_packet() - schedule an icmp packet to be received * locally and sent to userspace. * @icmph: pointer to the header of the icmp packet * @icmp_len: total length of the icmp packet diff --combined net/batman-adv/log.c index 76451460c98d,da004980ab8b..9be74a44e99d --- a/net/batman-adv/log.c +++ b/net/batman-adv/log.c @@@ -1,3 -1,4 +1,4 @@@ + // SPDX-License-Identifier: GPL-2.0 /* Copyright (C) 2010-2017 B.A.T.M.A.N. contributors: * * Marek Lindner @@@ -24,6 -25,7 +25,7 @@@ #include <linux/export.h> #include <linux/fcntl.h> #include <linux/fs.h> + #include <linux/gfp.h> #include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/module.h> @@@ -86,6 -88,13 +88,13 @@@ static int batadv_fdebug_log(struct bat return 0; } + /** + * batadv_debug_log() - Add debug log entry + * @bat_priv: the bat priv with all the soft interface information + * @fmt: format string + * + * Return: 0 on success or negative error number in case of failure + */ int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...) { va_list args; @@@ -176,7 -185,7 +185,7 @@@ static ssize_t batadv_log_read(struct f return error; } -static unsigned int batadv_log_poll(struct file *file, poll_table *wait) +static __poll_t batadv_log_poll(struct file *file, poll_table *wait) { struct batadv_priv *bat_priv = file->private_data; struct batadv_priv_debug_log *debug_log = bat_priv->debug_log; @@@ -197,6 -206,12 +206,12 @@@ static const struct file_operations bat .llseek = no_llseek, }; + /** + * batadv_debug_log_setup() - Initialize debug log + * @bat_priv: the bat priv with all the soft interface information + * + * Return: 0 on success or negative error number in case of failure + */ int batadv_debug_log_setup(struct batadv_priv *bat_priv) { struct dentry *d; @@@ -222,6 -237,10 +237,10 @@@ err return -ENOMEM; } + /** + * batadv_debug_log_cleanup() - Destroy debug log + * @bat_priv: the bat priv with all the soft interface information + */ void batadv_debug_log_cleanup(struct batadv_priv *bat_priv) { kfree(bat_priv->debug_log); diff --combined net/bluetooth/af_bluetooth.c index 671b907ba678,f044202346c6..f897681780db --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@@ -421,7 -421,7 +421,7 @@@ out } EXPORT_SYMBOL(bt_sock_stream_recvmsg); -static inline unsigned int bt_accept_poll(struct sock *parent) +static inline __poll_t bt_accept_poll(struct sock *parent) { struct bt_sock *s, *n; struct sock *sk; @@@ -437,11 -437,11 +437,11 @@@ return 0; } -unsigned int bt_sock_poll(struct file *file, struct socket *sock, +__poll_t bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; - unsigned int mask = 0; + __poll_t mask = 0; BT_DBG("sock %p, sk %p", sock, sk); @@@ -766,43 -766,39 +766,39 @@@ static int __init bt_init(void return err; err = sock_register(&bt_sock_family_ops); - if (err < 0) { - bt_sysfs_cleanup(); - return err; - } + if (err) + goto cleanup_sysfs; BT_INFO("HCI device and connection manager initialized"); err = hci_sock_init(); - if (err < 0) - goto error; + if (err) + goto unregister_socket; err = l2cap_init(); - if (err < 0) - goto sock_err; + if (err) + goto cleanup_socket; err = sco_init(); - if (err < 0) { - l2cap_exit(); - goto sock_err; - } + if (err) + goto cleanup_cap; err = mgmt_init(); - if (err < 0) { - sco_exit(); - l2cap_exit(); - goto sock_err; - } + if (err) + goto cleanup_sco; return 0; - sock_err: + cleanup_sco: + sco_exit(); + cleanup_cap: + l2cap_exit(); + cleanup_socket: hci_sock_cleanup(); - - error: + unregister_socket: sock_unregister(PF_BLUETOOTH); + cleanup_sysfs: bt_sysfs_cleanup(); - return err; } diff --combined net/core/dev.c index 0e0ba36eeac9,2eb66c0d9cdb..dc3bb37ba252 --- a/net/core/dev.c +++ b/net/core/dev.c @@@ -1146,19 -1146,7 +1146,19 @@@ EXPORT_SYMBOL(dev_alloc_name) int dev_get_valid_name(struct net *net, struct net_device *dev, const char *name) { - return dev_alloc_name_ns(net, dev, name); + BUG_ON(!net); + + if (!dev_valid_name(name)) + return -EINVAL; + + if (strchr(name, '%')) + return dev_alloc_name_ns(net, dev, name); + else if (__dev_get_by_name(net, name)) + return -EEXIST; + else if (dev->name != name) + strlcpy(dev->name, name, IFNAMSIZ); + + return 0; } EXPORT_SYMBOL(dev_get_valid_name); @@@ -1554,6 -1542,23 +1554,23 @@@ void dev_disable_lro(struct net_device } EXPORT_SYMBOL(dev_disable_lro); + /** + * dev_disable_gro_hw - disable HW Generic Receive Offload on a device + * @dev: device + * + * Disable HW Generic Receive Offload (GRO_HW) on a net device. Must be + * called under RTNL. This is needed if Generic XDP is installed on + * the device. + */ + static void dev_disable_gro_hw(struct net_device *dev) + { + dev->wanted_features &= ~NETIF_F_GRO_HW; + netdev_update_features(dev); + + if (unlikely(dev->features & NETIF_F_GRO_HW)) + netdev_WARN(dev, "failed to disable GRO_HW!\n"); + } + static int call_netdevice_notifier(struct notifier_block *nb, unsigned long val, struct net_device *dev) { @@@ -2815,7 -2820,7 +2832,7 @@@ struct sk_buff *__skb_gso_segment(struc segs = skb_mac_gso_segment(skb, features); - if (unlikely(skb_needs_check(skb, tx_path))) + if (unlikely(skb_needs_check(skb, tx_path) && !IS_ERR(segs))) skb_warn_bad_offload(skb); return segs; @@@ -3054,7 -3059,7 +3071,7 @@@ int skb_csum_hwoffload_help(struct sk_b } EXPORT_SYMBOL(skb_csum_hwoffload_help); - static struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device *dev) + static struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device *dev, bool *again) { netdev_features_t features; @@@ -3078,9 -3083,6 +3095,6 @@@ __skb_linearize(skb)) goto out_kfree_skb; - if (validate_xmit_xfrm(skb, features)) - goto out_kfree_skb; - /* If packet is not checksummed and device does not * support checksumming for this protocol, complete * checksumming here. @@@ -3097,6 -3099,8 +3111,8 @@@ } } + skb = validate_xmit_xfrm(skb, features, again); + return skb; out_kfree_skb: @@@ -3106,7 -3110,7 +3122,7 @@@ out_null return NULL; } - struct sk_buff *validate_xmit_skb_list(struct sk_buff *skb, struct net_device *dev) + struct sk_buff *validate_xmit_skb_list(struct sk_buff *skb, struct net_device *dev, bool *again) { struct sk_buff *next, *head = NULL, *tail; @@@ -3117,7 -3121,7 +3133,7 @@@ /* in case skb wont be segmented, point to itself */ skb->prev = skb; - skb = validate_xmit_skb(skb, dev); + skb = validate_xmit_skb(skb, dev, again); if (!skb) continue; @@@ -3174,6 -3178,21 +3190,21 @@@ static inline int __dev_xmit_skb(struc int rc; qdisc_calculate_pkt_len(skb, q); + + if (q->flags & TCQ_F_NOLOCK) { + if (unlikely(test_bit(__QDISC_STATE_DEACTIVATED, &q->state))) { + __qdisc_drop(skb, &to_free); + rc = NET_XMIT_DROP; + } else { + rc = q->enqueue(skb, q, &to_free) & NET_XMIT_MASK; + __qdisc_run(q); + } + + if (unlikely(to_free)) + kfree_skb_list(to_free); + return rc; + } + /* * Heuristic to force contended enqueues to serialize on a * separate lock before trying to get qdisc main lock. @@@ -3204,9 -3223,9 +3235,9 @@@ contended = false; } __qdisc_run(q); - } else - qdisc_run_end(q); + } + qdisc_run_end(q); rc = NET_XMIT_SUCCESS; } else { rc = q->enqueue(skb, q, &to_free) & NET_XMIT_MASK; @@@ -3216,6 -3235,7 +3247,7 @@@ contended = false; } __qdisc_run(q); + qdisc_run_end(q); } } spin_unlock(root_lock); @@@ -3428,6 -3448,7 +3460,7 @@@ static int __dev_queue_xmit(struct sk_b struct netdev_queue *txq; struct Qdisc *q; int rc = -ENOMEM; + bool again = false; skb_reset_mac_header(skb); @@@ -3489,7 -3510,7 +3522,7 @@@ XMIT_RECURSION_LIMIT)) goto recursion_alert; - skb = validate_xmit_skb(skb, dev); + skb = validate_xmit_skb(skb, dev, &again); if (!skb) goto out; @@@ -4155,21 -4176,26 +4188,26 @@@ static __latent_entropy void net_tx_act while (head) { struct Qdisc *q = head; - spinlock_t *root_lock; + spinlock_t *root_lock = NULL; head = head->next_sched; - root_lock = qdisc_lock(q); - spin_lock(root_lock); + if (!(q->flags & TCQ_F_NOLOCK)) { + root_lock = qdisc_lock(q); + spin_lock(root_lock); + } /* We need to make sure head->next_sched is read * before clearing __QDISC_STATE_SCHED */ smp_mb__before_atomic(); clear_bit(__QDISC_STATE_SCHED, &q->state); qdisc_run(q); - spin_unlock(root_lock); + if (root_lock) + spin_unlock(root_lock); } } + + xfrm_dev_backlog(sd); } #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_ATM_LANE) @@@ -4557,6 -4583,7 +4595,7 @@@ static int generic_xdp_install(struct n } else if (new && !old) { static_key_slow_inc(&generic_xdp_needed); dev_disable_lro(dev); + dev_disable_gro_hw(dev); } break; @@@ -7085,17 -7112,21 +7124,21 @@@ int dev_change_proto_down(struct net_de } EXPORT_SYMBOL(dev_change_proto_down); - u8 __dev_xdp_attached(struct net_device *dev, bpf_op_t bpf_op, u32 *prog_id) + void __dev_xdp_query(struct net_device *dev, bpf_op_t bpf_op, + struct netdev_bpf *xdp) { - struct netdev_bpf xdp; - - memset(&xdp, 0, sizeof(xdp)); - xdp.command = XDP_QUERY_PROG; + memset(xdp, 0, sizeof(*xdp)); + xdp->command = XDP_QUERY_PROG; /* Query must always succeed. */ - WARN_ON(bpf_op(dev, &xdp) < 0); - if (prog_id) - *prog_id = xdp.prog_id; + WARN_ON(bpf_op(dev, xdp) < 0); + } + + static u8 __dev_xdp_attached(struct net_device *dev, bpf_op_t bpf_op) + { + struct netdev_bpf xdp; + + __dev_xdp_query(dev, bpf_op, &xdp); return xdp.prog_attached; } @@@ -7118,6 -7149,27 +7161,27 @@@ static int dev_xdp_install(struct net_d return bpf_op(dev, &xdp); } + static void dev_xdp_uninstall(struct net_device *dev) + { + struct netdev_bpf xdp; + bpf_op_t ndo_bpf; + + /* Remove generic XDP */ + WARN_ON(dev_xdp_install(dev, generic_xdp_install, NULL, 0, NULL)); + + /* Remove from the driver */ + ndo_bpf = dev->netdev_ops->ndo_bpf; + if (!ndo_bpf) + return; + + __dev_xdp_query(dev, ndo_bpf, &xdp); + if (xdp.prog_attached == XDP_ATTACHED_NONE) + return; + + /* Program removal should always succeed */ + WARN_ON(dev_xdp_install(dev, ndo_bpf, NULL, xdp.prog_flags, NULL)); + } + /** * dev_change_xdp_fd - set or clear a bpf program for a device rx path * @dev: device @@@ -7146,10 -7198,10 +7210,10 @@@ int dev_change_xdp_fd(struct net_devic bpf_chk = generic_xdp_install; if (fd >= 0) { - if (bpf_chk && __dev_xdp_attached(dev, bpf_chk, NULL)) + if (bpf_chk && __dev_xdp_attached(dev, bpf_chk)) return -EEXIST; if ((flags & XDP_FLAGS_UPDATE_IF_NOEXIST) && - __dev_xdp_attached(dev, bpf_op, NULL)) + __dev_xdp_attached(dev, bpf_op)) return -EBUSY; prog = bpf_prog_get_type_dev(fd, BPF_PROG_TYPE_XDP, @@@ -7248,6 -7300,7 +7312,7 @@@ static void rollback_registered_many(st /* Shutdown queueing discipline. */ dev_shutdown(dev); + dev_xdp_uninstall(dev); /* Notify protocols, that we are about to destroy * this device. They should clean all the things. @@@ -7391,6 -7444,18 +7456,18 @@@ static netdev_features_t netdev_fix_fea features &= ~dev->gso_partial_features; } + if (!(features & NETIF_F_RXCSUM)) { + /* NETIF_F_GRO_HW implies doing RXCSUM since every packet + * successfully merged by hardware must also have the + * checksum verified by hardware. If the user does not + * want to enable RXCSUM, logically, we should disable GRO_HW. + */ + if (features & NETIF_F_GRO_HW) { + netdev_dbg(dev, "Dropping NETIF_F_GRO_HW since no RXCSUM feature.\n"); + features &= ~NETIF_F_GRO_HW; + } + } + return features; } @@@ -8207,7 -8272,6 +8284,6 @@@ EXPORT_SYMBOL(alloc_netdev_mqs) void free_netdev(struct net_device *dev) { struct napi_struct *p, *n; - struct bpf_prog *prog; might_sleep(); netif_free_tx_queues(dev); @@@ -8226,12 -8290,6 +8302,6 @@@ free_percpu(dev->pcpu_refcnt); dev->pcpu_refcnt = NULL; - prog = rcu_dereference_protected(dev->xdp_prog, 1); - if (prog) { - bpf_prog_put(prog); - static_key_slow_dec(&generic_xdp_needed); - } - /* Compatibility with error handling in drivers */ if (dev->reg_state == NETREG_UNINITIALIZED) { netdev_freemem(dev); @@@ -8819,6 -8877,9 +8889,9 @@@ static int __init net_dev_init(void skb_queue_head_init(&sd->input_pkt_queue); skb_queue_head_init(&sd->process_queue); + #ifdef CONFIG_XFRM_OFFLOAD + skb_queue_head_init(&sd->xfrm_backlog); + #endif INIT_LIST_HEAD(&sd->poll_list); sd->output_queue_tailp = &sd->output_queue; #ifdef CONFIG_RPS diff --combined net/core/ethtool.c index 8225416911ae,50a79203043b..fff6314f4c5e --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@@ -73,6 -73,7 +73,7 @@@ static const char netdev_features_strin [NETIF_F_LLTX_BIT] = "tx-lockless", [NETIF_F_NETNS_LOCAL_BIT] = "netns-local", [NETIF_F_GRO_BIT] = "rx-gro", + [NETIF_F_GRO_HW_BIT] = "rx-gro-hw", [NETIF_F_LRO_BIT] = "rx-lro", [NETIF_F_TSO_BIT] = "tx-tcp-segmentation", @@@ -770,6 -771,15 +771,6 @@@ static int ethtool_set_link_ksettings(s return dev->ethtool_ops->set_link_ksettings(dev, &link_ksettings); } -static void -warn_incomplete_ethtool_legacy_settings_conversion(const char *details) -{ - char name[sizeof(current->comm)]; - - pr_info_once("warning: `%s' uses legacy ethtool link settings API, %s\n", - get_task_comm(name, current), details); -} - /* Query device for its ethtool_cmd settings. * * Backward compatibility note: for compatibility with legacy ethtool, @@@ -796,8 -806,10 +797,8 @@@ static int ethtool_get_settings(struct &link_ksettings); if (err < 0) return err; - if (!convert_link_ksettings_to_legacy_settings(&cmd, - &link_ksettings)) - warn_incomplete_ethtool_legacy_settings_conversion( - "link modes are only partially reported"); + convert_link_ksettings_to_legacy_settings(&cmd, + &link_ksettings); /* send a sensible cmd tag back to user */ cmd.cmd = ETHTOOL_GSET; diff --combined net/core/sock.c index 1211159718ad,72d14b221784..420c380bc61d --- a/net/core/sock.c +++ b/net/core/sock.c @@@ -145,6 -145,8 +145,8 @@@ static DEFINE_MUTEX(proto_list_mutex); static LIST_HEAD(proto_list); + static void sock_inuse_add(struct net *net, int val); + /** * sk_ns_capable - General socket capability test * @sk: Socket to use a capability on or through @@@ -1531,8 -1533,11 +1533,11 @@@ struct sock *sk_alloc(struct net *net, sk->sk_kern_sock = kern; sock_lock_init(sk); sk->sk_net_refcnt = kern ? 0 : 1; - if (likely(sk->sk_net_refcnt)) + if (likely(sk->sk_net_refcnt)) { get_net(net); + sock_inuse_add(net, 1); + } + sock_net_set(sk, net); refcount_set(&sk->sk_wmem_alloc, 1); @@@ -1595,6 -1600,9 +1600,9 @@@ void sk_destruct(struct sock *sk static void __sk_free(struct sock *sk) { + if (likely(sk->sk_net_refcnt)) + sock_inuse_add(sock_net(sk), -1); + if (unlikely(sock_diag_has_destroy_listeners(sk) && sk->sk_net_refcnt)) sock_diag_broadcast_destroy(sk); else @@@ -1716,6 -1724,8 +1724,8 @@@ struct sock *sk_clone_lock(const struc newsk->sk_priority = 0; newsk->sk_incoming_cpu = raw_smp_processor_id(); atomic64_set(&newsk->sk_cookie, 0); + if (likely(newsk->sk_net_refcnt)) + sock_inuse_add(sock_net(newsk), 1); /* * Before updating sk_refcnt, we must commit prior changes to memory @@@ -2496,7 -2506,7 +2506,7 @@@ int sock_no_getname(struct socket *sock } EXPORT_SYMBOL(sock_no_getname); -unsigned int sock_no_poll(struct file *file, struct socket *sock, poll_table *pt) +__poll_t sock_no_poll(struct file *file, struct socket *sock, poll_table *pt) { return 0; } @@@ -3045,7 -3055,7 +3055,7 @@@ static DECLARE_BITMAP(proto_inuse_idx, void sock_prot_inuse_add(struct net *net, struct proto *prot, int val) { - __this_cpu_add(net->core.inuse->val[prot->inuse_idx], val); + __this_cpu_add(net->core.prot_inuse->val[prot->inuse_idx], val); } EXPORT_SYMBOL_GPL(sock_prot_inuse_add); @@@ -3055,21 -3065,50 +3065,50 @@@ int sock_prot_inuse_get(struct net *net int res = 0; for_each_possible_cpu(cpu) - res += per_cpu_ptr(net->core.inuse, cpu)->val[idx]; + res += per_cpu_ptr(net->core.prot_inuse, cpu)->val[idx]; return res >= 0 ? res : 0; } EXPORT_SYMBOL_GPL(sock_prot_inuse_get); + static void sock_inuse_add(struct net *net, int val) + { + this_cpu_add(*net->core.sock_inuse, val); + } + + int sock_inuse_get(struct net *net) + { + int cpu, res = 0; + + for_each_possible_cpu(cpu) + res += *per_cpu_ptr(net->core.sock_inuse, cpu); + + return res; + } + + EXPORT_SYMBOL_GPL(sock_inuse_get); + static int __net_init sock_inuse_init_net(struct net *net) { - net->core.inuse = alloc_percpu(struct prot_inuse); - return net->core.inuse ? 0 : -ENOMEM; + net->core.prot_inuse = alloc_percpu(struct prot_inuse); + if (net->core.prot_inuse == NULL) + return -ENOMEM; + + net->core.sock_inuse = alloc_percpu(int); + if (net->core.sock_inuse == NULL) + goto out; + + return 0; + + out: + free_percpu(net->core.prot_inuse); + return -ENOMEM; } static void __net_exit sock_inuse_exit_net(struct net *net) { - free_percpu(net->core.inuse); + free_percpu(net->core.prot_inuse); + free_percpu(net->core.sock_inuse); } static struct pernet_operations net_inuse_ops = { @@@ -3112,6 -3151,10 +3151,10 @@@ static inline void assign_proto_idx(str static inline void release_proto_idx(struct proto *prot) { } + + static void sock_inuse_add(struct net *net, int val) + { + } #endif static void req_prot_cleanup(struct request_sock_ops *rsk_prot) diff --combined net/dccp/proto.c index 8b8db3d481bd,fa7e92e08920..74685fecfdb9 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@@ -38,6 -38,9 +38,9 @@@ #include "dccp.h" #include "feat.h" + #define CREATE_TRACE_POINTS + #include "trace.h" + DEFINE_SNMP_STAT(struct dccp_mib, dccp_statistics) __read_mostly; EXPORT_SYMBOL_GPL(dccp_statistics); @@@ -110,7 -113,7 +113,7 @@@ void dccp_set_state(struct sock *sk, co /* Change state AFTER socket is unhashed to avoid closed * socket sitting in hash tables. */ - sk->sk_state = state; + inet_sk_set_state(sk, state); } EXPORT_SYMBOL_GPL(dccp_set_state); @@@ -318,10 -321,10 +321,10 @@@ EXPORT_SYMBOL_GPL(dccp_disconnect) * take care of normal races (between the test and the event) and we don't * go look at any of the socket buffers directly. */ -unsigned int dccp_poll(struct file *file, struct socket *sock, +__poll_t dccp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask; + __poll_t mask; struct sock *sk = sock->sk; sock_poll_wait(file, sk_sleep(sk), wait); @@@ -761,6 -764,8 +764,8 @@@ int dccp_sendmsg(struct sock *sk, struc int rc, size; long timeo; + trace_dccp_probe(sk, len); + if (len > dp->dccps_mss_cache) return -EMSGSIZE; diff --combined net/ipv4/tcp.c index c4a7ee7f6721,7ac583a2b9fe..61d15bd31e82 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@@ -283,8 -283,6 +283,6 @@@ #include <asm/ioctls.h> #include <net/busy_poll.h> - #include <trace/events/tcp.h> - struct percpu_counter tcp_orphan_count; EXPORT_SYMBOL_GPL(tcp_orphan_count); @@@ -493,9 -491,9 +491,9 @@@ static void tcp_tx_timestamp(struct soc * take care of normal races (between the test and the event) and we don't * go look at any of the socket buffers directly. */ -unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) +__poll_t tcp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask; + __poll_t mask; struct sock *sk = sock->sk; const struct tcp_sock *tp = tcp_sk(sk); int state; @@@ -504,7 -502,7 +502,7 @@@ sock_poll_wait(file, sk_sleep(sk), wait); - state = sk_state_load(sk); + state = inet_sk_state_load(sk); if (state == TCP_LISTEN) return inet_csk_listen_poll(sk); @@@ -1106,12 -1104,15 +1104,15 @@@ static int linear_payload_sz(bool first return 0; } - static int select_size(const struct sock *sk, bool sg, bool first_skb) + static int select_size(const struct sock *sk, bool sg, bool first_skb, bool zc) { const struct tcp_sock *tp = tcp_sk(sk); int tmp = tp->mss_cache; if (sg) { + if (zc) + return 0; + if (sk_can_gso(sk)) { tmp = linear_payload_sz(first_skb); } else { @@@ -1188,7 -1189,7 +1189,7 @@@ int tcp_sendmsg_locked(struct sock *sk int flags, err, copied = 0; int mss_now = 0, size_goal, copied_syn = 0; bool process_backlog = false; - bool sg; + bool sg, zc = false; long timeo; flags = msg->msg_flags; @@@ -1206,7 -1207,8 +1207,8 @@@ goto out_err; } - if (!(sk_check_csum_caps(sk) && sk->sk_route_caps & NETIF_F_SG)) + zc = sk_check_csum_caps(sk) && sk->sk_route_caps & NETIF_F_SG; + if (!zc) uarg->zerocopy = 0; } @@@ -1283,6 -1285,7 +1285,7 @@@ restart if (copy <= 0 || !tcp_skb_can_collapse_to(skb)) { bool first_skb; + int linear; new_segment: /* Allocate new segment. If the interface is SG, @@@ -1296,9 -1299,8 +1299,8 @@@ goto restart; } first_skb = tcp_rtx_and_write_queues_empty(sk); - skb = sk_stream_alloc_skb(sk, - select_size(sk, sg, first_skb), - sk->sk_allocation, + linear = select_size(sk, sg, first_skb, zc); + skb = sk_stream_alloc_skb(sk, linear, sk->sk_allocation, first_skb); if (!skb) goto wait_for_memory; @@@ -1327,13 -1329,13 +1329,13 @@@ copy = msg_data_left(msg); /* Where to copy to? */ - if (skb_availroom(skb) > 0) { + if (skb_availroom(skb) > 0 && !zc) { /* We have some space in skb head. Superb! */ copy = min_t(int, copy, skb_availroom(skb)); err = skb_add_data_nocache(sk, skb, &msg->msg_iter, copy); if (err) goto do_fault; - } else if (!uarg || !uarg->zerocopy) { + } else if (!zc) { bool merge = true; int i = skb_shinfo(skb)->nr_frags; struct page_frag *pfrag = sk_page_frag(sk); @@@ -1373,8 -1375,10 +1375,10 @@@ pfrag->offset += copy; } else { err = skb_zerocopy_iter_stream(sk, skb, msg, copy, uarg); - if (err == -EMSGSIZE || err == -EEXIST) + if (err == -EMSGSIZE || err == -EEXIST) { + tcp_mark_push(tp, skb); goto new_segment; + } if (err < 0) goto do_error; copy = err; @@@ -2040,8 -2044,6 +2044,6 @@@ void tcp_set_state(struct sock *sk, in { int oldstate = sk->sk_state; - trace_tcp_set_state(sk, oldstate, state); - switch (state) { case TCP_ESTABLISHED: if (oldstate != TCP_ESTABLISHED) @@@ -2065,7 -2067,7 +2067,7 @@@ /* Change state AFTER socket is unhashed to avoid closed * socket sitting in hash tables. */ - sk_state_store(sk, state); + inet_sk_state_store(sk, state); #ifdef STATE_TRACE SOCK_DEBUG(sk, "TCP sk=%p, State %s -> %s\n", sk, statename[oldstate], statename[state]); @@@ -2920,7 -2922,7 +2922,7 @@@ void tcp_get_info(struct sock *sk, stru if (sk->sk_type != SOCK_STREAM) return; - info->tcpi_state = sk_state_load(sk); + info->tcpi_state = inet_sk_state_load(sk); /* Report meaningful fields for all TCP states, including listeners */ rate = READ_ONCE(sk->sk_pacing_rate); @@@ -3578,6 -3580,9 +3580,9 @@@ void __init tcp_init(void percpu_counter_init(&tcp_sockets_allocated, 0, GFP_KERNEL); percpu_counter_init(&tcp_orphan_count, 0, GFP_KERNEL); inet_hashinfo_init(&tcp_hashinfo); + inet_hashinfo2_init(&tcp_hashinfo, "tcp_listen_portaddr_hash", + thash_entries, 21, /* one slot per 2 MB*/ + 0, 64 * 1024); tcp_hashinfo.bind_bucket_cachep = kmem_cache_create("tcp_bind_bucket", sizeof(struct inet_bind_bucket), 0, diff --combined net/ipv4/udp.c index ef45adfc0edb,e9c0d1e1772e..0942a5f43ea5 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@@ -357,18 -357,12 +357,12 @@@ fail } EXPORT_SYMBOL(udp_lib_get_port); - static u32 udp4_portaddr_hash(const struct net *net, __be32 saddr, - unsigned int port) - { - return jhash_1word((__force u32)saddr, net_hash_mix(net)) ^ port; - } - int udp_v4_get_port(struct sock *sk, unsigned short snum) { unsigned int hash2_nulladdr = - udp4_portaddr_hash(sock_net(sk), htonl(INADDR_ANY), snum); + ipv4_portaddr_hash(sock_net(sk), htonl(INADDR_ANY), snum); unsigned int hash2_partial = - udp4_portaddr_hash(sock_net(sk), inet_sk(sk)->inet_rcv_saddr, 0); + ipv4_portaddr_hash(sock_net(sk), inet_sk(sk)->inet_rcv_saddr, 0); /* precompute partial secondary hash */ udp_sk(sk)->udp_portaddr_hash = hash2_partial; @@@ -445,7 -439,7 +439,7 @@@ static struct sock *udp4_lib_lookup2(st struct sk_buff *skb) { struct sock *sk, *result; - int score, badness, matches = 0, reuseport = 0; + int score, badness; u32 hash = 0; result = NULL; @@@ -454,23 -448,16 +448,16 @@@ score = compute_score(sk, net, saddr, sport, daddr, hnum, dif, sdif, exact_dif); if (score > badness) { - reuseport = sk->sk_reuseport; - if (reuseport) { + if (sk->sk_reuseport) { hash = udp_ehashfn(net, daddr, hnum, saddr, sport); result = reuseport_select_sock(sk, hash, skb, sizeof(struct udphdr)); if (result) return result; - matches = 1; } badness = score; result = sk; - } else if (score == badness && reuseport) { - matches++; - if (reciprocal_scale(hash, matches) == 0) - result = sk; - hash = next_pseudo_random32(hash); } } return result; @@@ -488,11 -475,11 +475,11 @@@ struct sock *__udp4_lib_lookup(struct n unsigned int hash2, slot2, slot = udp_hashfn(net, hnum, udptable->mask); struct udp_hslot *hslot2, *hslot = &udptable->hash[slot]; bool exact_dif = udp_lib_exact_dif_match(net, skb); - int score, badness, matches = 0, reuseport = 0; + int score, badness; u32 hash = 0; if (hslot->count > 10) { - hash2 = udp4_portaddr_hash(net, daddr, hnum); + hash2 = ipv4_portaddr_hash(net, daddr, hnum); slot2 = hash2 & udptable->mask; hslot2 = &udptable->hash2[slot2]; if (hslot->count < hslot2->count) @@@ -503,7 -490,7 +490,7 @@@ exact_dif, hslot2, skb); if (!result) { unsigned int old_slot2 = slot2; - hash2 = udp4_portaddr_hash(net, htonl(INADDR_ANY), hnum); + hash2 = ipv4_portaddr_hash(net, htonl(INADDR_ANY), hnum); slot2 = hash2 & udptable->mask; /* avoid searching the same slot again. */ if (unlikely(slot2 == old_slot2)) @@@ -526,23 -513,16 +513,16 @@@ begin score = compute_score(sk, net, saddr, sport, daddr, hnum, dif, sdif, exact_dif); if (score > badness) { - reuseport = sk->sk_reuseport; - if (reuseport) { + if (sk->sk_reuseport) { hash = udp_ehashfn(net, daddr, hnum, saddr, sport); result = reuseport_select_sock(sk, hash, skb, sizeof(struct udphdr)); if (result) return result; - matches = 1; } result = sk; badness = score; - } else if (score == badness && reuseport) { - matches++; - if (reciprocal_scale(hash, matches) == 0) - result = sk; - hash = next_pseudo_random32(hash); } } return result; @@@ -1775,7 -1755,7 +1755,7 @@@ EXPORT_SYMBOL(udp_lib_rehash) static void udp_v4_rehash(struct sock *sk) { - u16 new_hash = udp4_portaddr_hash(sock_net(sk), + u16 new_hash = ipv4_portaddr_hash(sock_net(sk), inet_sk(sk)->inet_rcv_saddr, inet_sk(sk)->inet_num); udp_lib_rehash(sk, new_hash); @@@ -1966,9 -1946,9 +1946,9 @@@ static int __udp4_lib_mcast_deliver(str struct sk_buff *nskb; if (use_hash2) { - hash2_any = udp4_portaddr_hash(net, htonl(INADDR_ANY), hnum) & + hash2_any = ipv4_portaddr_hash(net, htonl(INADDR_ANY), hnum) & udptable->mask; - hash2 = udp4_portaddr_hash(net, daddr, hnum) & udptable->mask; + hash2 = ipv4_portaddr_hash(net, daddr, hnum) & udptable->mask; start_lookup: hslot = &udptable->hash2[hash2]; offset = offsetof(typeof(*sk), __sk_common.skc_portaddr_node); @@@ -2200,7 -2180,7 +2180,7 @@@ static struct sock *__udp4_lib_demux_lo int dif, int sdif) { unsigned short hnum = ntohs(loc_port); - unsigned int hash2 = udp4_portaddr_hash(net, loc_addr, hnum); + unsigned int hash2 = ipv4_portaddr_hash(net, loc_addr, hnum); unsigned int slot2 = hash2 & udp_table.mask; struct udp_hslot *hslot2 = &udp_table.hash2[slot2]; INET_ADDR_COOKIE(acookie, rmt_addr, loc_addr); @@@ -2502,9 -2482,9 +2482,9 @@@ int compat_udp_getsockopt(struct sock * * but then block when reading it. Add special case code * to work around these arguably broken applications. */ -unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait) +__poll_t udp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask = datagram_poll(file, sock, wait); + __poll_t mask = datagram_poll(file, sock, wait); struct sock *sk = sock->sk; if (!skb_queue_empty(&udp_sk(sk)->reader_queue)) diff --combined net/ipv6/ip6_tunnel.c index 9a7cf355bc8c,8a4610e84e58..8071f42cd8a0 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@@ -861,7 -861,7 +861,7 @@@ int ip6_tnl_rcv(struct ip6_tnl *t, stru struct metadata_dst *tun_dst, bool log_ecn_err) { - return __ip6_tnl_rcv(t, skb, tpi, NULL, ip6ip6_dscp_ecn_decapsulate, + return __ip6_tnl_rcv(t, skb, tpi, tun_dst, ip6ip6_dscp_ecn_decapsulate, log_ecn_err); } EXPORT_SYMBOL(ip6_tnl_rcv); @@@ -979,6 -979,9 +979,9 @@@ int ip6_tnl_xmit_ctl(struct ip6_tnl *t int ret = 0; struct net *net = t->net; + if (t->parms.collect_md) + return 1; + if ((p->flags & IP6_TNL_F_CAP_XMIT) || ((p->flags & IP6_TNL_F_CAP_PER_PACKET) && (ip6_tnl_get_cap(t, laddr, raddr) & IP6_TNL_F_CAP_XMIT))) { @@@ -1074,11 -1077,10 +1077,11 @@@ int ip6_tnl_xmit(struct sk_buff *skb, s memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr)); neigh_release(neigh); } - } else if (!(t->parms.flags & - (IP6_TNL_F_USE_ORIG_TCLASS | IP6_TNL_F_USE_ORIG_FWMARK))) { - /* enable the cache only only if the routing decision does - * not depend on the current inner header value + } else if (t->parms.proto != 0 && !(t->parms.flags & + (IP6_TNL_F_USE_ORIG_TCLASS | + IP6_TNL_F_USE_ORIG_FWMARK))) { + /* enable the cache only if neither the outer protocol nor the + * routing decision depends on the current inner header value */ use_cache = true; } @@@ -1677,11 -1679,11 +1680,11 @@@ int ip6_tnl_change_mtu(struct net_devic { struct ip6_tnl *tnl = netdev_priv(dev); - if (tnl->parms.proto == IPPROTO_IPIP) { - if (new_mtu < ETH_MIN_MTU) + if (tnl->parms.proto == IPPROTO_IPV6) { + if (new_mtu < IPV6_MIN_MTU) return -EINVAL; } else { - if (new_mtu < IPV6_MIN_MTU) + if (new_mtu < ETH_MIN_MTU) return -EINVAL; } if (new_mtu > 0xFFF8 - dev->hard_header_len) diff --combined net/packet/af_packet.c index 3b4d6a3cf190,ee7aa0ba3a67..2a80f19f0913 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@@ -247,12 -247,13 +247,13 @@@ static int packet_direct_xmit(struct sk struct sk_buff *orig_skb = skb; struct netdev_queue *txq; int ret = NETDEV_TX_BUSY; + bool again = false; if (unlikely(!netif_running(dev) || !netif_carrier_ok(dev))) goto drop; - skb = validate_xmit_skb_list(skb, dev); + skb = validate_xmit_skb_list(skb, dev, &again); if (skb != orig_skb) goto drop; @@@ -4073,12 -4074,12 +4074,12 @@@ static int packet_ioctl(struct socket * return 0; } -static unsigned int packet_poll(struct file *file, struct socket *sock, +static __poll_t packet_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct packet_sock *po = pkt_sk(sk); - unsigned int mask = datagram_poll(file, sock, wait); + __poll_t mask = datagram_poll(file, sock, wait); spin_lock_bh(&sk->sk_receive_queue.lock); if (po->rx_ring.pg_vec) { diff --combined net/sched/act_gact.c index a0ac42b3ed06,9d632e92cad0..b56986d41c87 --- a/net/sched/act_gact.c +++ b/net/sched/act_gact.c @@@ -159,7 -159,7 +159,7 @@@ static void tcf_gact_stats_update(struc if (action == TC_ACT_SHOT) this_cpu_ptr(gact->common.cpu_qstats)->drops += packets; - tm->lastuse = lastuse; + tm->lastuse = max_t(u64, tm->lastuse, lastuse); } static int tcf_gact_dump(struct sk_buff *skb, struct tc_action *a, @@@ -235,16 -235,14 +235,14 @@@ static __net_init int gact_init_net(str return tc_action_net_init(tn, &act_gact_ops); } - static void __net_exit gact_exit_net(struct net *net) + static void __net_exit gact_exit_net(struct list_head *net_list) { - struct tc_action_net *tn = net_generic(net, gact_net_id); - - tc_action_net_exit(tn); + tc_action_net_exit(net_list, gact_net_id); } static struct pernet_operations gact_net_ops = { .init = gact_init_net, - .exit = gact_exit_net, + .exit_batch = gact_exit_net, .id = &gact_net_id, .size = sizeof(struct tc_action_net), }; diff --combined net/sched/act_mirred.c index 08b61849c2a2,37e5e4decbd6..e6ff88f72900 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@@ -29,7 -29,6 +29,6 @@@ #include <net/tc_act/tc_mirred.h> static LIST_HEAD(mirred_list); - static DEFINE_SPINLOCK(mirred_list_lock); static bool tcf_mirred_is_act_redirect(int action) { @@@ -50,18 -49,15 +49,15 @@@ static bool tcf_mirred_act_wants_ingres } } - static void tcf_mirred_release(struct tc_action *a, int bind) + static void tcf_mirred_release(struct tc_action *a) { struct tcf_mirred *m = to_mirred(a); struct net_device *dev; - /* We could be called either in a RCU callback or with RTNL lock held. */ - spin_lock_bh(&mirred_list_lock); list_del(&m->tcfm_list); - dev = rcu_dereference_protected(m->tcfm_dev, 1); + dev = rtnl_dereference(m->tcfm_dev); if (dev) dev_put(dev); - spin_unlock_bh(&mirred_list_lock); } static const struct nla_policy mirred_policy[TCA_MIRRED_MAX + 1] = { @@@ -139,8 -135,6 +135,6 @@@ static int tcf_mirred_init(struct net * m->tcf_action = parm->action; m->tcfm_eaction = parm->eaction; if (dev != NULL) { - m->tcfm_ifindex = parm->ifindex; - m->net = net; if (ret != ACT_P_CREATED) dev_put(rcu_dereference_protected(m->tcfm_dev, 1)); dev_hold(dev); @@@ -149,9 -143,7 +143,7 @@@ } if (ret == ACT_P_CREATED) { - spin_lock_bh(&mirred_list_lock); list_add(&m->tcfm_list, &mirred_list); - spin_unlock_bh(&mirred_list_lock); tcf_idr_insert(tn, *a); } @@@ -239,7 -231,7 +231,7 @@@ static void tcf_stats_update(struct tc_ struct tcf_t *tm = &m->tcf_tm; _bstats_cpu_update(this_cpu_ptr(a->cpu_bstats), bytes, packets); - tm->lastuse = lastuse; + tm->lastuse = max_t(u64, tm->lastuse, lastuse); } static int tcf_mirred_dump(struct sk_buff *skb, struct tc_action *a, int bind, @@@ -247,13 -239,14 +239,14 @@@ { unsigned char *b = skb_tail_pointer(skb); struct tcf_mirred *m = to_mirred(a); + struct net_device *dev = rtnl_dereference(m->tcfm_dev); struct tc_mirred opt = { .index = m->tcf_index, .action = m->tcf_action, .refcnt = m->tcf_refcnt - ref, .bindcnt = m->tcf_bindcnt - bind, .eaction = m->tcfm_eaction, - .ifindex = m->tcfm_ifindex, + .ifindex = dev ? dev->ifindex : 0, }; struct tcf_t t; @@@ -294,7 -287,6 +287,6 @@@ static int mirred_device_event(struct n ASSERT_RTNL(); if (event == NETDEV_UNREGISTER) { - spin_lock_bh(&mirred_list_lock); list_for_each_entry(m, &mirred_list, tcfm_list) { if (rcu_access_pointer(m->tcfm_dev) == dev) { dev_put(dev); @@@ -304,7 -296,6 +296,6 @@@ RCU_INIT_POINTER(m->tcfm_dev, NULL); } } - spin_unlock_bh(&mirred_list_lock); } return NOTIFY_DONE; @@@ -318,7 -309,7 +309,7 @@@ static struct net_device *tcf_mirred_ge { struct tcf_mirred *m = to_mirred(a); - return __dev_get_by_index(m->net, m->tcfm_ifindex); + return rtnl_dereference(m->tcfm_dev); } static struct tc_action_ops act_mirred_ops = { @@@ -343,16 -334,14 +334,14 @@@ static __net_init int mirred_init_net(s return tc_action_net_init(tn, &act_mirred_ops); } - static void __net_exit mirred_exit_net(struct net *net) + static void __net_exit mirred_exit_net(struct list_head *net_list) { - struct tc_action_net *tn = net_generic(net, mirred_net_id); - - tc_action_net_exit(tn); + tc_action_net_exit(net_list, mirred_net_id); } static struct pernet_operations mirred_net_ops = { .init = mirred_init_net, - .exit = mirred_exit_net, + .exit_batch = mirred_exit_net, .id = &mirred_net_id, .size = sizeof(struct tc_action_net), }; diff --combined net/sctp/socket.c index 8f7536de5f41,a5e2150ab013..eb68ae261054 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@@ -201,6 -201,22 +201,22 @@@ static void sctp_for_each_tx_datachunk( cb(chunk); } + static void sctp_for_each_rx_skb(struct sctp_association *asoc, struct sock *sk, + void (*cb)(struct sk_buff *, struct sock *)) + + { + struct sk_buff *skb, *tmp; + + sctp_skb_for_each(skb, &asoc->ulpq.lobby, tmp) + cb(skb, sk); + + sctp_skb_for_each(skb, &asoc->ulpq.reasm, tmp) + cb(skb, sk); + + sctp_skb_for_each(skb, &asoc->ulpq.reasm_uo, tmp) + cb(skb, sk); + } + /* Verify that this is a valid address. */ static inline int sctp_verify_addr(struct sock *sk, union sctp_addr *addr, int len) @@@ -1528,7 -1544,7 +1544,7 @@@ static void sctp_close(struct sock *sk lock_sock_nested(sk, SINGLE_DEPTH_NESTING); sk->sk_shutdown = SHUTDOWN_MASK; - sk->sk_state = SCTP_SS_CLOSING; + inet_sk_set_state(sk, SCTP_SS_CLOSING); ep = sctp_sk(sk)->ep; @@@ -1554,6 -1570,7 +1570,7 @@@ if (data_was_unread || !skb_queue_empty(&asoc->ulpq.lobby) || !skb_queue_empty(&asoc->ulpq.reasm) || + !skb_queue_empty(&asoc->ulpq.reasm_uo) || (sock_flag(sk, SOCK_LINGER) && !sk->sk_lingertime)) { struct sctp_chunk *chunk; @@@ -2002,7 -2019,20 +2019,20 @@@ static int sctp_sendmsg(struct sock *sk if (err < 0) goto out_free; - wait_connect = true; + /* If stream interleave is enabled, wait_connect has to be + * done earlier than data enqueue, as it needs to make data + * or idata according to asoc->intl_enable which is set + * after connection is done. + */ + if (sctp_sk(asoc->base.sk)->strm_interleave) { + timeo = sock_sndtimeo(sk, 0); + err = sctp_wait_for_connect(asoc, &timeo); + if (err) + goto out_unlock; + } else { + wait_connect = true; + } + pr_debug("%s: we associated primitively\n", __func__); } @@@ -2281,7 -2311,7 +2311,7 @@@ static int sctp_setsockopt_events(struc if (!event) return -ENOMEM; - sctp_ulpq_tail_event(&asoc->ulpq, event); + asoc->stream.si->enqueue_event(&asoc->ulpq, event); } } @@@ -3180,7 -3210,7 +3210,7 @@@ static int sctp_setsockopt_maxseg(struc if (val == 0) { val = asoc->pathmtu - sp->pf->af->net_header_len; val -= sizeof(struct sctphdr) + - sizeof(struct sctp_data_chunk); + sctp_datachk_len(&asoc->stream); } asoc->user_frag = val; asoc->frag_point = sctp_frag_point(asoc, asoc->pathmtu); @@@ -3350,7 -3380,10 +3380,10 @@@ static int sctp_setsockopt_fragment_int if (get_user(val, (int __user *)optval)) return -EFAULT; - sctp_sk(sk)->frag_interleave = (val == 0) ? 0 : 1; + sctp_sk(sk)->frag_interleave = !!val; + + if (!sctp_sk(sk)->frag_interleave) + sctp_sk(sk)->strm_interleave = 0; return 0; } @@@ -4023,6 -4056,40 +4056,40 @@@ out return retval; } + static int sctp_setsockopt_interleaving_supported(struct sock *sk, + char __user *optval, + unsigned int optlen) + { + struct sctp_sock *sp = sctp_sk(sk); + struct net *net = sock_net(sk); + struct sctp_assoc_value params; + int retval = -EINVAL; + + if (optlen < sizeof(params)) + goto out; + + optlen = sizeof(params); + if (copy_from_user(&params, optval, optlen)) { + retval = -EFAULT; + goto out; + } + + if (params.assoc_id) + goto out; + + if (!net->sctp.intl_enable || !sp->frag_interleave) { + retval = -EPERM; + goto out; + } + + sp->strm_interleave = !!params.assoc_value; + + retval = 0; + + out: + return retval; + } + /* API 6.2 setsockopt(), getsockopt() * * Applications use setsockopt() and getsockopt() to set or retrieve @@@ -4210,6 -4277,10 +4277,10 @@@ static int sctp_setsockopt(struct sock case SCTP_STREAM_SCHEDULER_VALUE: retval = sctp_setsockopt_scheduler_value(sk, optval, optlen); break; + case SCTP_INTERLEAVING_SUPPORTED: + retval = sctp_setsockopt_interleaving_supported(sk, optval, + optlen); + break; default: retval = -ENOPROTOOPT; break; @@@ -4586,7 -4657,7 +4657,7 @@@ static void sctp_shutdown(struct sock * if (how & SEND_SHUTDOWN && !list_empty(&ep->asocs)) { struct sctp_association *asoc; - sk->sk_state = SCTP_SS_CLOSING; + inet_sk_set_state(sk, SCTP_SS_CLOSING); asoc = list_entry(ep->asocs.next, struct sctp_association, asocs); sctp_primitive_SHUTDOWN(net, asoc, NULL); @@@ -4680,20 -4751,11 +4751,11 @@@ int sctp_get_sctp_info(struct sock *sk EXPORT_SYMBOL_GPL(sctp_get_sctp_info); /* use callback to avoid exporting the core structure */ - int sctp_transport_walk_start(struct rhashtable_iter *iter) + void sctp_transport_walk_start(struct rhashtable_iter *iter) { - int err; - rhltable_walk_enter(&sctp_transport_hashtable, iter); - err = rhashtable_walk_start(iter); - if (err && err != -EAGAIN) { - rhashtable_walk_stop(iter); - rhashtable_walk_exit(iter); - return err; - } - - return 0; + rhashtable_walk_start(iter); } void sctp_transport_walk_stop(struct rhashtable_iter *iter) @@@ -4784,12 -4846,10 +4846,10 @@@ int sctp_for_each_transport(int (*cb)(s struct net *net, int *pos, void *p) { struct rhashtable_iter hti; struct sctp_transport *tsp; - int ret; + int ret = 0; again: - ret = sctp_transport_walk_start(&hti); - if (ret) - return ret; + sctp_transport_walk_start(&hti); tsp = sctp_transport_get_idx(net, &hti, *pos + 1); for (; !IS_ERR_OR_NULL(tsp); tsp = sctp_transport_get_next(net, &hti)) { @@@ -6984,6 -7044,47 +7044,47 @@@ out return retval; } + static int sctp_getsockopt_interleaving_supported(struct sock *sk, int len, + char __user *optval, + int __user *optlen) + { + struct sctp_assoc_value params; + struct sctp_association *asoc; + int retval = -EFAULT; + + if (len < sizeof(params)) { + retval = -EINVAL; + goto out; + } + + len = sizeof(params); + if (copy_from_user(&params, optval, len)) + goto out; + + asoc = sctp_id2assoc(sk, params.assoc_id); + if (asoc) { + params.assoc_value = asoc->intl_enable; + } else if (!params.assoc_id) { + struct sctp_sock *sp = sctp_sk(sk); + + params.assoc_value = sp->strm_interleave; + } else { + retval = -EINVAL; + goto out; + } + + if (put_user(len, optlen)) + goto out; + + if (copy_to_user(optval, &params, len)) + goto out; + + retval = 0; + + out: + return retval; + } + static int sctp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { @@@ -7174,6 -7275,10 +7275,10 @@@ retval = sctp_getsockopt_scheduler_value(sk, len, optval, optlen); break; + case SCTP_INTERLEAVING_SUPPORTED: + retval = sctp_getsockopt_interleaving_supported(sk, len, optval, + optlen); + break; default: retval = -ENOPROTOOPT; break; @@@ -7408,13 -7513,13 +7513,13 @@@ static int sctp_listen_start(struct soc * sockets. * */ - sk->sk_state = SCTP_SS_LISTENING; + inet_sk_set_state(sk, SCTP_SS_LISTENING); if (!ep->base.bind_addr.port) { if (sctp_autobind(sk)) return -EAGAIN; } else { if (sctp_get_port(sk, inet_sk(sk)->inet_num)) { - sk->sk_state = SCTP_SS_CLOSED; + inet_sk_set_state(sk, SCTP_SS_CLOSED); return -EADDRINUSE; } } @@@ -7500,11 -7605,11 +7605,11 @@@ out * here, again, by modeling the current TCP/UDP code. We don't have * a good way to test with it yet. */ -unsigned int sctp_poll(struct file *file, struct socket *sock, poll_table *wait) +__poll_t sctp_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct sctp_sock *sp = sctp_sk(sk); - unsigned int mask; + __poll_t mask; poll_wait(file, sk_sleep(sk), wait); @@@ -8411,11 -8516,7 +8516,7 @@@ static void sctp_sock_migrate(struct so } - sctp_skb_for_each(skb, &assoc->ulpq.reasm, tmp) - sctp_skb_set_owner_r_frag(skb, newsk); - - sctp_skb_for_each(skb, &assoc->ulpq.lobby, tmp) - sctp_skb_set_owner_r_frag(skb, newsk); + sctp_for_each_rx_skb(assoc, newsk, sctp_skb_set_owner_r_frag); /* Set the type of socket to indicate that it is peeled off from the * original UDP-style socket or created with the accept() call on a @@@ -8441,10 -8542,10 +8542,10 @@@ * is called, set RCV_SHUTDOWN flag. */ if (sctp_state(assoc, CLOSED) && sctp_style(newsk, TCP)) { - newsk->sk_state = SCTP_SS_CLOSED; + inet_sk_set_state(newsk, SCTP_SS_CLOSED); newsk->sk_shutdown |= RCV_SHUTDOWN; } else { - newsk->sk_state = SCTP_SS_ESTABLISHED; + inet_sk_set_state(newsk, SCTP_SS_ESTABLISHED); } release_sock(newsk); diff --combined net/sctp/stream.c index 524dfeb94c41,06b644dd858c..cedf672487f9 --- a/net/sctp/stream.c +++ b/net/sctp/stream.c @@@ -156,9 -156,9 +156,9 @@@ int sctp_stream_init(struct sctp_strea sctp_stream_outq_migrate(stream, NULL, outcnt); sched->sched_all(stream); - i = sctp_stream_alloc_out(stream, outcnt, gfp); - if (i) - return i; + ret = sctp_stream_alloc_out(stream, outcnt, gfp); + if (ret) + goto out; stream->outcnt = outcnt; for (i = 0; i < stream->outcnt; i++) @@@ -167,20 -167,23 +167,21 @@@ sched->init(stream); in: + sctp_stream_interleave_init(stream); if (!incnt) goto out; - i = sctp_stream_alloc_in(stream, incnt, gfp); - if (i) { - ret = -ENOMEM; - goto free; + ret = sctp_stream_alloc_in(stream, incnt, gfp); + if (ret) { + sched->free(stream); + kfree(stream->out); + stream->out = NULL; + stream->outcnt = 0; + goto out; } stream->incnt = incnt; - goto out; -free: - sched->free(stream); - kfree(stream->out); - stream->out = NULL; out: return ret; } @@@ -213,11 -216,13 +214,13 @@@ void sctp_stream_clear(struct sctp_stre { int i; - for (i = 0; i < stream->outcnt; i++) - stream->out[i].ssn = 0; + for (i = 0; i < stream->outcnt; i++) { + stream->out[i].mid = 0; + stream->out[i].mid_uo = 0; + } for (i = 0; i < stream->incnt; i++) - stream->in[i].ssn = 0; + stream->in[i].mid = 0; } void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new) @@@ -604,10 -609,10 +607,10 @@@ struct sctp_chunk *sctp_process_strrese } for (i = 0; i < nums; i++) - stream->in[ntohs(str_p[i])].ssn = 0; + stream->in[ntohs(str_p[i])].mid = 0; } else { for (i = 0; i < stream->incnt; i++) - stream->in[i].ssn = 0; + stream->in[i].mid = 0; } result = SCTP_STRRESET_PERFORMED; @@@ -751,8 -756,7 +754,7 @@@ struct sctp_chunk *sctp_process_strrese * performed. */ max_tsn_seen = sctp_tsnmap_get_max_tsn_seen(&asoc->peer.tsn_map); - sctp_ulpq_reasm_flushtsn(&asoc->ulpq, max_tsn_seen); - sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC); + asoc->stream.si->report_ftsn(&asoc->ulpq, max_tsn_seen); /* G1: Compute an appropriate value for the Receiver's Next TSN -- the * TSN that the peer should use to send the next DATA chunk. The @@@ -781,10 -785,12 +783,12 @@@ /* G5: The next expected and outgoing SSNs MUST be reset to 0 for all * incoming and outgoing streams. */ - for (i = 0; i < stream->outcnt; i++) - stream->out[i].ssn = 0; + for (i = 0; i < stream->outcnt; i++) { + stream->out[i].mid = 0; + stream->out[i].mid_uo = 0; + } for (i = 0; i < stream->incnt; i++) - stream->in[i].ssn = 0; + stream->in[i].mid = 0; result = SCTP_STRRESET_PERFORMED; @@@ -974,11 -980,15 +978,15 @@@ struct sctp_chunk *sctp_process_strrese if (result == SCTP_STRRESET_PERFORMED) { if (nums) { - for (i = 0; i < nums; i++) - stream->out[ntohs(str_p[i])].ssn = 0; + for (i = 0; i < nums; i++) { + stream->out[ntohs(str_p[i])].mid = 0; + stream->out[ntohs(str_p[i])].mid_uo = 0; + } } else { - for (i = 0; i < stream->outcnt; i++) - stream->out[i].ssn = 0; + for (i = 0; i < stream->outcnt; i++) { + stream->out[i].mid = 0; + stream->out[i].mid_uo = 0; + } } flags = SCTP_STREAM_RESET_OUTGOING_SSN; @@@ -1021,8 -1031,7 +1029,7 @@@ &asoc->peer.tsn_map); LIST_HEAD(temp); - sctp_ulpq_reasm_flushtsn(&asoc->ulpq, mtsn); - sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC); + asoc->stream.si->report_ftsn(&asoc->ulpq, mtsn); sctp_tsnmap_init(&asoc->peer.tsn_map, SCTP_TSN_MAP_INITIAL, @@@ -1040,10 -1049,12 +1047,12 @@@ asoc->ctsn_ack_point = asoc->next_tsn - 1; asoc->adv_peer_ack_point = asoc->ctsn_ack_point; - for (i = 0; i < stream->outcnt; i++) - stream->out[i].ssn = 0; + for (i = 0; i < stream->outcnt; i++) { + stream->out[i].mid = 0; + stream->out[i].mid_uo = 0; + } for (i = 0; i < stream->incnt; i++) - stream->in[i].ssn = 0; + stream->in[i].mid = 0; } for (i = 0; i < stream->outcnt; i++) diff --combined net/smc/af_smc.c index 449f62e1e270,daf8075f5a4c..b6e4e2e4fe12 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@@ -520,7 -520,7 +520,7 @@@ decline_rdma smc->use_fallback = true; if (reason_code && (reason_code != SMC_CLC_DECL_REPLY)) { rc = smc_clc_send_decline(smc, reason_code); - if (rc < sizeof(struct smc_clc_msg_decline)) + if (rc < 0) goto out_err; } goto out_connected; @@@ -751,14 -751,16 +751,16 @@@ static void smc_listen_work(struct work { struct smc_sock *new_smc = container_of(work, struct smc_sock, smc_listen_work); + struct smc_clc_msg_proposal_prefix *pclc_prfx; struct socket *newclcsock = new_smc->clcsock; struct smc_sock *lsmc = new_smc->listen_smc; struct smc_clc_msg_accept_confirm cclc; int local_contact = SMC_REUSE_CONTACT; struct sock *newsmcsk = &new_smc->sk; - struct smc_clc_msg_proposal pclc; + struct smc_clc_msg_proposal *pclc; struct smc_ib_device *smcibdev; struct sockaddr_in peeraddr; + u8 buf[SMC_CLC_MAX_LEN]; struct smc_link *link; int reason_code = 0; int rc = 0, len; @@@ -775,7 -777,7 +777,7 @@@ /* do inband token exchange - *wait for and receive SMC Proposal CLC message */ - reason_code = smc_clc_wait_msg(new_smc, &pclc, sizeof(pclc), + reason_code = smc_clc_wait_msg(new_smc, &buf, sizeof(buf), SMC_CLC_PROPOSAL); if (reason_code < 0) goto out_err; @@@ -804,8 -806,11 +806,11 @@@ reason_code = SMC_CLC_DECL_CNFERR; /* configuration error */ goto decline_rdma; } - if ((pclc.outgoing_subnet != subnet) || - (pclc.prefix_len != prefix_len)) { + + pclc = (struct smc_clc_msg_proposal *)&buf; + pclc_prfx = smc_clc_proposal_get_prefix(pclc); + if (pclc_prfx->outgoing_subnet != subnet || + pclc_prfx->prefix_len != prefix_len) { reason_code = SMC_CLC_DECL_CNFERR; /* configuration error */ goto decline_rdma; } @@@ -816,7 -821,7 +821,7 @@@ /* allocate connection / link group */ mutex_lock(&smc_create_lgr_pending); local_contact = smc_conn_create(new_smc, peeraddr.sin_addr.s_addr, - smcibdev, ibport, &pclc.lcl, 0); + smcibdev, ibport, &pclc->lcl, 0); if (local_contact < 0) { rc = local_contact; if (rc == -ENOMEM) @@@ -879,11 -884,9 +884,9 @@@ } /* QP confirmation over RoCE fabric */ reason_code = smc_serv_conf_first_link(new_smc); - if (reason_code < 0) { + if (reason_code < 0) /* peer is not aware of a problem */ - rc = reason_code; goto out_err_unlock; - } if (reason_code > 0) goto decline_rdma_unlock; } @@@ -916,8 -919,7 +919,7 @@@ decline_rdma smc_conn_free(&new_smc->conn); new_smc->use_fallback = true; if (reason_code && (reason_code != SMC_CLC_DECL_REPLY)) { - rc = smc_clc_send_decline(new_smc, reason_code); - if (rc < sizeof(struct smc_clc_msg_decline)) + if (smc_clc_send_decline(new_smc, reason_code) < 0) goto out_err; } goto out_connected; @@@ -1107,7 -1109,7 +1109,7 @@@ out return rc; } -static unsigned int smc_accept_poll(struct sock *parent) +static __poll_t smc_accept_poll(struct sock *parent) { struct smc_sock *isk; struct sock *sk; @@@ -1126,11 -1128,11 +1128,11 @@@ return 0; } -static unsigned int smc_poll(struct file *file, struct socket *sock, +static __poll_t smc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; - unsigned int mask = 0; + __poll_t mask = 0; struct smc_sock *smc; int rc; diff --combined net/smc/smc_clc.c index 511548085d16,abf7ceb6690b..8ac51583a063 --- a/net/smc/smc_clc.c +++ b/net/smc/smc_clc.c @@@ -22,6 -22,54 +22,54 @@@ #include "smc_clc.h" #include "smc_ib.h" + /* check if received message has a correct header length and contains valid + * heading and trailing eyecatchers + */ + static bool smc_clc_msg_hdr_valid(struct smc_clc_msg_hdr *clcm) + { + struct smc_clc_msg_proposal_prefix *pclc_prfx; + struct smc_clc_msg_accept_confirm *clc; + struct smc_clc_msg_proposal *pclc; + struct smc_clc_msg_decline *dclc; + struct smc_clc_msg_trail *trl; + + if (memcmp(clcm->eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER))) + return false; + switch (clcm->type) { + case SMC_CLC_PROPOSAL: + pclc = (struct smc_clc_msg_proposal *)clcm; + pclc_prfx = smc_clc_proposal_get_prefix(pclc); + if (ntohs(pclc->hdr.length) != + sizeof(*pclc) + ntohs(pclc->iparea_offset) + + sizeof(*pclc_prfx) + + pclc_prfx->ipv6_prefixes_cnt * + sizeof(struct smc_clc_ipv6_prefix) + + sizeof(*trl)) + return false; + trl = (struct smc_clc_msg_trail *) + ((u8 *)pclc + ntohs(pclc->hdr.length) - sizeof(*trl)); + break; + case SMC_CLC_ACCEPT: + case SMC_CLC_CONFIRM: + clc = (struct smc_clc_msg_accept_confirm *)clcm; + if (ntohs(clc->hdr.length) != sizeof(*clc)) + return false; + trl = &clc->trl; + break; + case SMC_CLC_DECLINE: + dclc = (struct smc_clc_msg_decline *)clcm; + if (ntohs(dclc->hdr.length) != sizeof(*dclc)) + return false; + trl = &dclc->trl; + break; + default: + return false; + } + if (memcmp(trl->eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER))) + return false; + return true; + } + /* Wait for data on the tcp-socket, analyze received data * Returns: * 0 if success and it was not a decline that we received. @@@ -35,7 -83,7 +83,7 @@@ int smc_clc_wait_msg(struct smc_sock *s struct smc_clc_msg_hdr *clcm = buf; struct msghdr msg = {NULL, 0}; int reason_code = 0; - struct kvec vec; + struct kvec vec = {buf, buflen}; int len, datlen; int krflags; @@@ -43,15 -91,12 +91,15 @@@ * so we don't consume any subsequent CLC message or payload data * in the TCP byte stream */ - vec.iov_base = buf; - vec.iov_len = buflen; + /* + * Caller must make sure that buflen is no less than + * sizeof(struct smc_clc_msg_hdr) + */ krflags = MSG_PEEK | MSG_WAITALL; smc->clcsock->sk->sk_rcvtimeo = CLC_WAIT_TIME; - len = kernel_recvmsg(smc->clcsock, &msg, &vec, 1, - sizeof(struct smc_clc_msg_hdr), krflags); + iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &vec, 1, + sizeof(struct smc_clc_msg_hdr)); + len = sock_recvmsg(smc->clcsock, &msg, krflags); if (signal_pending(current)) { reason_code = -EINTR; clc_sk->sk_err = EINTR; @@@ -75,9 -120,7 +123,7 @@@ } datlen = ntohs(clcm->length); if ((len < sizeof(struct smc_clc_msg_hdr)) || - (datlen < sizeof(struct smc_clc_msg_decline)) || - (datlen > sizeof(struct smc_clc_msg_accept_confirm)) || - memcmp(clcm->eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER)) || + (datlen > buflen) || ((clcm->type != SMC_CLC_DECLINE) && (clcm->type != expected_type))) { smc->sk.sk_err = EPROTO; @@@ -86,12 -129,13 +132,12 @@@ } /* receive the complete CLC message */ - vec.iov_base = buf; - vec.iov_len = buflen; memset(&msg, 0, sizeof(struct msghdr)); + iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &vec, 1, buflen); krflags = MSG_WAITALL; smc->clcsock->sk->sk_rcvtimeo = CLC_WAIT_TIME; - len = kernel_recvmsg(smc->clcsock, &msg, &vec, 1, datlen, krflags); + len = sock_recvmsg(smc->clcsock, &msg, krflags); - if (len < datlen) { + if (len < datlen || !smc_clc_msg_hdr_valid(clcm)) { smc->sk.sk_err = EPROTO; reason_code = -EPROTO; goto out; @@@ -135,7 -179,7 +181,7 @@@ int smc_clc_send_decline(struct smc_soc smc->sk.sk_err = EPROTO; if (len < 0) smc->sk.sk_err = -len; - return len; + return sock_error(&smc->sk); } /* send CLC PROPOSAL message across internal TCP socket */ @@@ -143,33 -187,43 +189,43 @@@ int smc_clc_send_proposal(struct smc_so struct smc_ib_device *smcibdev, u8 ibport) { + struct smc_clc_msg_proposal_prefix pclc_prfx; struct smc_clc_msg_proposal pclc; + struct smc_clc_msg_trail trl; int reason_code = 0; + struct kvec vec[3]; struct msghdr msg; - struct kvec vec; - int len, rc; + int len, plen, rc; /* send SMC Proposal CLC message */ + plen = sizeof(pclc) + sizeof(pclc_prfx) + sizeof(trl); memset(&pclc, 0, sizeof(pclc)); memcpy(pclc.hdr.eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER)); pclc.hdr.type = SMC_CLC_PROPOSAL; - pclc.hdr.length = htons(sizeof(pclc)); + pclc.hdr.length = htons(plen); pclc.hdr.version = SMC_CLC_V1; /* SMC version */ memcpy(pclc.lcl.id_for_peer, local_systemid, sizeof(local_systemid)); memcpy(&pclc.lcl.gid, &smcibdev->gid[ibport - 1], SMC_GID_SIZE); memcpy(&pclc.lcl.mac, &smcibdev->mac[ibport - 1], ETH_ALEN); + pclc.iparea_offset = htons(0); + memset(&pclc_prfx, 0, sizeof(pclc_prfx)); /* determine subnet and mask from internal TCP socket */ - rc = smc_netinfo_by_tcpsk(smc->clcsock, &pclc.outgoing_subnet, - &pclc.prefix_len); + rc = smc_netinfo_by_tcpsk(smc->clcsock, &pclc_prfx.outgoing_subnet, + &pclc_prfx.prefix_len); if (rc) return SMC_CLC_DECL_CNFERR; /* configuration error */ - memcpy(pclc.trl.eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER)); + pclc_prfx.ipv6_prefixes_cnt = 0; + memcpy(trl.eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER)); memset(&msg, 0, sizeof(msg)); - vec.iov_base = &pclc; - vec.iov_len = sizeof(pclc); + vec[0].iov_base = &pclc; + vec[0].iov_len = sizeof(pclc); + vec[1].iov_base = &pclc_prfx; + vec[1].iov_len = sizeof(pclc_prfx); + vec[2].iov_base = &trl; + vec[2].iov_len = sizeof(trl); /* due to the few bytes needed for clc-handshake this cannot block */ - len = kernel_sendmsg(smc->clcsock, &msg, &vec, 1, sizeof(pclc)); + len = kernel_sendmsg(smc->clcsock, &msg, vec, 3, plen); if (len < sizeof(pclc)) { if (len >= 0) { reason_code = -ENETUNREACH; diff --combined net/socket.c index 092baa464afc,bbd2e9ceb692..60d05479b2c1 --- a/net/socket.c +++ b/net/socket.c @@@ -118,7 -118,7 +118,7 @@@ static ssize_t sock_write_iter(struct k static int sock_mmap(struct file *file, struct vm_area_struct *vma); static int sock_close(struct inode *inode, struct file *file); -static unsigned int sock_poll(struct file *file, +static __poll_t sock_poll(struct file *file, struct poll_table_struct *wait); static long sock_ioctl(struct file *file, unsigned int cmd, unsigned long arg); #ifdef CONFIG_COMPAT @@@ -163,12 -163,6 +163,6 @@@ static DEFINE_SPINLOCK(net_family_lock) static const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly; /* - * Statistics counters of the socket lists - */ - - static DEFINE_PER_CPU(int, sockets_in_use); - - /* * Support routines. * Move socket addresses back and forth across the kernel/user * divide and look after the messy bits. @@@ -578,7 -572,6 +572,6 @@@ struct socket *sock_alloc(void inode->i_gid = current_fsgid(); inode->i_op = &sockfs_inode_ops; - this_cpu_add(sockets_in_use, 1); return sock; } EXPORT_SYMBOL(sock_alloc); @@@ -605,7 -598,6 +598,6 @@@ void sock_release(struct socket *sock if (rcu_dereference_protected(sock->wq, 1)->fasync_list) pr_err("%s: fasync list not empty!\n", __func__); - this_cpu_sub(sockets_in_use, 1); if (!sock->file) { iput(SOCK_INODE(sock)); return; @@@ -1095,9 -1087,9 +1087,9 @@@ out_release EXPORT_SYMBOL(sock_create_lite); /* No kernel lock held - perfect */ -static unsigned int sock_poll(struct file *file, poll_table *wait) +static __poll_t sock_poll(struct file *file, poll_table *wait) { - unsigned int busy_flag = 0; + __poll_t busy_flag = 0; struct socket *sock; /* @@@ -2622,17 -2614,8 +2614,8 @@@ core_initcall(sock_init); /* early init #ifdef CONFIG_PROC_FS void socket_seq_show(struct seq_file *seq) { - int cpu; - int counter = 0; - - for_each_possible_cpu(cpu) - counter += per_cpu(sockets_in_use, cpu); - - /* It can be negative, by the way. 8) */ - if (counter < 0) - counter = 0; - - seq_printf(seq, "sockets: used %d\n", counter); + seq_printf(seq, "sockets: used %d\n", + sock_inuse_get(seq->private)); } #endif /* CONFIG_PROC_FS */ diff --combined net/tipc/socket.c index 2aa46e8cd8fe,b51d5cba5094..cf9644ea13ba --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@@ -710,13 -710,13 +710,13 @@@ static int tipc_getname(struct socket * * imply that the operation will succeed, merely that it should be performed * and will not block. */ -static unsigned int tipc_poll(struct file *file, struct socket *sock, +static __poll_t tipc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct tipc_sock *tsk = tipc_sk(sk); struct tipc_group *grp = tsk->group; - u32 revents = 0; + __poll_t revents = 0; sock_poll_wait(file, sk_sleep(sk), wait); @@@ -2640,9 -2640,7 +2640,7 @@@ void tipc_sk_reinit(struct net *net rhashtable_walk_enter(&tn->sk_rht, &iter); do { - tsk = ERR_PTR(rhashtable_walk_start(&iter)); - if (IS_ERR(tsk)) - goto walk_stop; + rhashtable_walk_start(&iter); while ((tsk = rhashtable_walk_next(&iter)) && !IS_ERR(tsk)) { spin_lock_bh(&tsk->sk.sk_lock.slock); @@@ -2651,7 -2649,7 +2649,7 @@@ msg_set_orignode(msg, tn->own_addr); spin_unlock_bh(&tsk->sk.sk_lock.slock); } - walk_stop: + rhashtable_walk_stop(&iter); } while (tsk == ERR_PTR(-EAGAIN)); } diff --combined net/xfrm/xfrm_policy.c index 2ef6db98e9ba,d8a8129b9232..26f56e64654a --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@@ -54,7 -54,7 +54,7 @@@ static struct xfrm_policy_afinfo const static struct kmem_cache *xfrm_dst_cache __read_mostly; static __read_mostly seqcount_t xfrm_policy_hash_generation; - static void xfrm_init_pmtu(struct dst_entry *dst); + static void xfrm_init_pmtu(struct xfrm_dst **bundle, int nr); static int stale_bundle(struct dst_entry *dst); static int xfrm_bundle_ok(struct xfrm_dst *xdst); static void xfrm_policy_queue_process(struct timer_list *t); @@@ -609,8 -609,7 +609,8 @@@ static void xfrm_hash_rebuild(struct wo /* re-insert all policies by order of creation */ list_for_each_entry_reverse(policy, &net->xfrm.policy_all, walk.all) { - if (xfrm_policy_id2dir(policy->index) >= XFRM_POLICY_MAX) { + if (policy->walk.dead || + xfrm_policy_id2dir(policy->index) >= XFRM_POLICY_MAX) { /* skip socket policies */ continue; } @@@ -1258,7 -1257,7 +1258,7 @@@ EXPORT_SYMBOL(xfrm_policy_delete) int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol) { - struct net *net = xp_net(pol); + struct net *net = sock_net(sk); struct xfrm_policy *old_pol; #ifdef CONFIG_XFRM_SUB_POLICY @@@ -1545,7 -1544,9 +1545,9 @@@ static inline int xfrm_fill_dst(struct */ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy, - struct xfrm_state **xfrm, int nx, + struct xfrm_state **xfrm, + struct xfrm_dst **bundle, + int nx, const struct flowi *fl, struct dst_entry *dst) { @@@ -1553,8 -1554,8 +1555,8 @@@ unsigned long now = jiffies; struct net_device *dev; struct xfrm_mode *inner_mode; - struct dst_entry *dst_prev = NULL; - struct dst_entry *dst0 = NULL; + struct xfrm_dst *xdst_prev = NULL; + struct xfrm_dst *xdst0 = NULL; int i = 0; int err; int header_len = 0; @@@ -1580,13 -1581,14 +1582,14 @@@ goto put_states; } - if (!dst_prev) - dst0 = dst1; + bundle[i] = xdst; + if (!xdst_prev) + xdst0 = xdst; else /* Ref count is taken during xfrm_alloc_dst() * No need to do dst_clone() on dst1 */ - dst_prev->child = dst1; + xfrm_dst_set_child(xdst_prev, &xdst->u.dst); if (xfrm[i]->sel.family == AF_UNSPEC) { inner_mode = xfrm_ip2inner_mode(xfrm[i], @@@ -1623,8 -1625,7 +1626,7 @@@ dst1->input = dst_discard; dst1->output = inner_mode->afinfo->output; - dst1->next = dst_prev; - dst_prev = dst1; + xdst_prev = xdst; header_len += xfrm[i]->props.header_len; if (xfrm[i]->type->flags & XFRM_TYPE_NON_FRAGMENT) @@@ -1632,40 -1633,39 +1634,39 @@@ trailer_len += xfrm[i]->props.trailer_len; } - dst_prev->child = dst; - dst0->path = dst; + xfrm_dst_set_child(xdst_prev, dst); + xdst0->path = dst; err = -ENODEV; dev = dst->dev; if (!dev) goto free_dst; - xfrm_init_path((struct xfrm_dst *)dst0, dst, nfheader_len); - xfrm_init_pmtu(dst_prev); - - for (dst_prev = dst0; dst_prev != dst; dst_prev = dst_prev->child) { - struct xfrm_dst *xdst = (struct xfrm_dst *)dst_prev; + xfrm_init_path(xdst0, dst, nfheader_len); + xfrm_init_pmtu(bundle, nx); - err = xfrm_fill_dst(xdst, dev, fl); + for (xdst_prev = xdst0; xdst_prev != (struct xfrm_dst *)dst; + xdst_prev = (struct xfrm_dst *) xfrm_dst_child(&xdst_prev->u.dst)) { + err = xfrm_fill_dst(xdst_prev, dev, fl); if (err) goto free_dst; - dst_prev->header_len = header_len; - dst_prev->trailer_len = trailer_len; - header_len -= xdst->u.dst.xfrm->props.header_len; - trailer_len -= xdst->u.dst.xfrm->props.trailer_len; + xdst_prev->u.dst.header_len = header_len; + xdst_prev->u.dst.trailer_len = trailer_len; + header_len -= xdst_prev->u.dst.xfrm->props.header_len; + trailer_len -= xdst_prev->u.dst.xfrm->props.trailer_len; } out: - return dst0; + return &xdst0->u.dst; put_states: for (; i < nx; i++) xfrm_state_put(xfrm[i]); free_dst: - if (dst0) - dst_release_immediate(dst0); - dst0 = ERR_PTR(err); + if (xdst0) + dst_release_immediate(&xdst0->u.dst); + xdst0 = ERR_PTR(err); goto out; } @@@ -1807,7 -1807,7 +1808,7 @@@ static bool xfrm_xdst_can_reuse(struct for (i = 0; i < num; i++) { if (!dst || dst->xfrm != xfrm[i]) return false; - dst = dst->child; + dst = xfrm_dst_child(dst); } return xfrm_bundle_ok(xdst); @@@ -1820,6 -1820,7 +1821,7 @@@ xfrm_resolve_and_create_bundle(struct x { struct net *net = xp_net(pols[0]); struct xfrm_state *xfrm[XFRM_MAX_DEPTH]; + struct xfrm_dst *bundle[XFRM_MAX_DEPTH]; struct xfrm_dst *xdst, *old; struct dst_entry *dst; int err; @@@ -1848,7 -1849,7 +1850,7 @@@ old = xdst; - dst = xfrm_bundle_create(pols[0], xfrm, err, fl, dst_orig); + dst = xfrm_bundle_create(pols[0], xfrm, bundle, err, fl, dst_orig); if (IS_ERR(dst)) { XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTBUNDLEGENERROR); return ERR_CAST(dst); @@@ -1888,8 -1889,8 +1890,8 @@@ static void xfrm_policy_queue_process(s xfrm_decode_session(skb, &fl, dst->ops->family); spin_unlock(&pq->hold_queue.lock); - dst_hold(dst->path); - dst = xfrm_lookup(net, dst->path, &fl, sk, 0); + dst_hold(xfrm_dst_path(dst)); + dst = xfrm_lookup(net, xfrm_dst_path(dst), &fl, sk, 0); if (IS_ERR(dst)) goto purge_queue; @@@ -1918,8 -1919,8 +1920,8 @@@ skb = __skb_dequeue(&list); xfrm_decode_session(skb, &fl, skb_dst(skb)->ops->family); - dst_hold(skb_dst(skb)->path); - dst = xfrm_lookup(net, skb_dst(skb)->path, &fl, skb->sk, 0); + dst_hold(xfrm_dst_path(skb_dst(skb))); + dst = xfrm_lookup(net, xfrm_dst_path(skb_dst(skb)), &fl, skb->sk, 0); if (IS_ERR(dst)) { kfree_skb(skb); continue; @@@ -2020,8 -2021,8 +2022,8 @@@ static struct xfrm_dst *xfrm_create_dum dst1->output = xdst_queue_output; dst_hold(dst); - dst1->child = dst; - dst1->path = dst; + xfrm_dst_set_child(xdst, dst); + xdst->path = dst; xfrm_init_path((struct xfrm_dst *)dst1, dst, 0); @@@ -2584,7 -2585,7 +2586,7 @@@ static int stale_bundle(struct dst_entr void xfrm_dst_ifdown(struct dst_entry *dst, struct net_device *dev) { - while ((dst = dst->child) && dst->xfrm && dst->dev == dev) { + while ((dst = xfrm_dst_child(dst)) && dst->xfrm && dst->dev == dev) { dst->dev = dev_net(dev)->loopback_dev; dev_hold(dst->dev); dev_put(dev); @@@ -2608,13 -2609,15 +2610,15 @@@ static struct dst_entry *xfrm_negative_ return dst; } - static void xfrm_init_pmtu(struct dst_entry *dst) + static void xfrm_init_pmtu(struct xfrm_dst **bundle, int nr) { - do { - struct xfrm_dst *xdst = (struct xfrm_dst *)dst; + while (nr--) { + struct xfrm_dst *xdst = bundle[nr]; u32 pmtu, route_mtu_cached; + struct dst_entry *dst; - pmtu = dst_mtu(dst->child); + dst = &xdst->u.dst; + pmtu = dst_mtu(xfrm_dst_child(dst)); xdst->child_mtu_cached = pmtu; pmtu = xfrm_state_mtu(dst->xfrm, pmtu); @@@ -2626,7 -2629,7 +2630,7 @@@ pmtu = route_mtu_cached; dst_metric_set(dst, RTAX_MTU, pmtu); - } while ((dst = dst->next)); + } } /* Check that the bundle accepts the flow and its components are @@@ -2635,19 -2638,20 +2639,20 @@@ static int xfrm_bundle_ok(struct xfrm_dst *first) { + struct xfrm_dst *bundle[XFRM_MAX_DEPTH]; struct dst_entry *dst = &first->u.dst; - struct xfrm_dst *last; + struct xfrm_dst *xdst; + int start_from, nr; u32 mtu; - if (!dst_check(dst->path, ((struct xfrm_dst *)dst)->path_cookie) || + if (!dst_check(xfrm_dst_path(dst), ((struct xfrm_dst *)dst)->path_cookie) || (dst->dev && !netif_running(dst->dev))) return 0; if (dst->flags & DST_XFRM_QUEUE) return 1; - last = NULL; - + start_from = nr = 0; do { struct xfrm_dst *xdst = (struct xfrm_dst *)dst; @@@ -2659,9 -2663,11 +2664,11 @@@ xdst->policy_genid != atomic_read(&xdst->pols[0]->genid)) return 0; - mtu = dst_mtu(dst->child); + bundle[nr++] = xdst; + + mtu = dst_mtu(xfrm_dst_child(dst)); if (xdst->child_mtu_cached != mtu) { - last = xdst; + start_from = nr; xdst->child_mtu_cached = mtu; } @@@ -2669,30 -2675,30 +2676,30 @@@ return 0; mtu = dst_mtu(xdst->route); if (xdst->route_mtu_cached != mtu) { - last = xdst; + start_from = nr; xdst->route_mtu_cached = mtu; } - dst = dst->child; + dst = xfrm_dst_child(dst); } while (dst->xfrm); - if (likely(!last)) + if (likely(!start_from)) return 1; - mtu = last->child_mtu_cached; - for (;;) { - dst = &last->u.dst; + xdst = bundle[start_from - 1]; + mtu = xdst->child_mtu_cached; + while (start_from--) { + dst = &xdst->u.dst; mtu = xfrm_state_mtu(dst->xfrm, mtu); - if (mtu > last->route_mtu_cached) - mtu = last->route_mtu_cached; + if (mtu > xdst->route_mtu_cached) + mtu = xdst->route_mtu_cached; dst_metric_set(dst, RTAX_MTU, mtu); - - if (last == first) + if (!start_from) break; - last = (struct xfrm_dst *)last->u.dst.next; - last->child_mtu_cached = mtu; + xdst = bundle[start_from - 1]; + xdst->child_mtu_cached = mtu; } return 1; @@@ -2700,22 -2706,20 +2707,20 @@@ static unsigned int xfrm_default_advmss(const struct dst_entry *dst) { - return dst_metric_advmss(dst->path); + return dst_metric_advmss(xfrm_dst_path(dst)); } static unsigned int xfrm_mtu(const struct dst_entry *dst) { unsigned int mtu = dst_metric_raw(dst, RTAX_MTU); - return mtu ? : dst_mtu(dst->path); + return mtu ? : dst_mtu(xfrm_dst_path(dst)); } static const void *xfrm_get_dst_nexthop(const struct dst_entry *dst, const void *daddr) { - const struct dst_entry *path = dst->path; - - for (; dst != path; dst = dst->child) { + while (dst->xfrm) { const struct xfrm_state *xfrm = dst->xfrm; if (xfrm->props.mode == XFRM_MODE_TRANSPORT) @@@ -2724,6 -2728,8 +2729,8 @@@ daddr = xfrm->coaddr; else if (!(xfrm->type->flags & XFRM_TYPE_LOCAL_COADDR)) daddr = &xfrm->id.daddr; + + dst = xfrm_dst_child(dst); } return daddr; } @@@ -2732,7 -2738,7 +2739,7 @@@ static struct neighbour *xfrm_neigh_loo struct sk_buff *skb, const void *daddr) { - const struct dst_entry *path = dst->path; + const struct dst_entry *path = xfrm_dst_path(dst); if (!skb) daddr = xfrm_get_dst_nexthop(dst, daddr); @@@ -2741,7 -2747,7 +2748,7 @@@ static void xfrm_confirm_neigh(const struct dst_entry *dst, const void *daddr) { - const struct dst_entry *path = dst->path; + const struct dst_entry *path = xfrm_dst_path(dst); daddr = xfrm_get_dst_nexthop(dst, daddr); path->ops->confirm_neigh(path, daddr); diff --combined net/xfrm/xfrm_state.c index 429957412633,cc4c519cad76..20b1e414dbee --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@@ -313,14 -313,13 +313,14 @@@ retry if ((type && !try_module_get(type->owner))) type = NULL; + rcu_read_unlock(); + if (!type && try_load) { request_module("xfrm-offload-%d-%d", family, proto); try_load = 0; goto retry; } - rcu_read_unlock(); return type; } @@@ -1535,12 -1534,8 +1535,12 @@@ out err = -EINVAL; spin_lock_bh(&x1->lock); if (likely(x1->km.state == XFRM_STATE_VALID)) { - if (x->encap && x1->encap) + if (x->encap && x1->encap && + x->encap->encap_type == x1->encap->encap_type) memcpy(x1->encap, x->encap, sizeof(*x1->encap)); + else if (x->encap || x1->encap) + goto fail; + if (x->coaddr && x1->coaddr) { memcpy(x1->coaddr, x->coaddr, sizeof(*x1->coaddr)); } @@@ -1557,8 -1552,6 +1557,8 @@@ x->km.state = XFRM_STATE_DEAD; __xfrm_state_put(x); } + +fail: spin_unlock_bh(&x1->lock); xfrm_state_put(x1); @@@ -2056,6 -2049,13 +2056,13 @@@ int xfrm_user_policy(struct sock *sk, i struct xfrm_mgr *km; struct xfrm_policy *pol = NULL; + if (!optval && !optlen) { + xfrm_sk_policy_insert(sk, XFRM_POLICY_IN, NULL); + xfrm_sk_policy_insert(sk, XFRM_POLICY_OUT, NULL); + __sk_dst_reset(sk); + return 0; + } + if (optlen <= 0 || optlen > PAGE_SIZE) return -EMSGSIZE; -- LinuxNextTracking

1 0

[linux-next] LinuxNextTracking branch, master, updated. next-20180104
by batman＠open-mesh.org 04 Jan '18

04 Jan '18

The following commit has been merged in the master branch: commit 84c83fc007f2e390d140189f2a5e49dc95929eb8 Merge: dbbe5b5210248fae10dd082fc3f23cfef5ddbc0f 416d20e8c31107f5dfd45d1d80d1e6c8e4871180 Author: Stephen Rothwell <sfr(a)canb.auug.org.au> Date: Thu Jan 4 09:34:03 2018 +1100 Merge remote-tracking branch 'vfs/for-next' diff --combined arch/alpha/include/uapi/asm/Kbuild index 14a2e9af97e9,574fe90c8b58..9afaba5e5503 --- a/arch/alpha/include/uapi/asm/Kbuild +++ b/arch/alpha/include/uapi/asm/Kbuild @@@ -1,4 -1,4 +1,5 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h + generic-y += poll.h diff --combined arch/ia64/include/uapi/asm/Kbuild index f5c6967a93bb,4c9825edd4a3..c0527cfc48f0 --- a/arch/ia64/include/uapi/asm/Kbuild +++ b/arch/ia64/include/uapi/asm/Kbuild @@@ -1,5 -1,5 +1,6 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h generic-y += kvm_para.h + generic-y += poll.h diff --combined arch/m32r/include/uapi/asm/Kbuild index 451bf6071c6e,21f241553a2e..c3df55aeefe7 --- a/arch/m32r/include/uapi/asm/Kbuild +++ b/arch/m32r/include/uapi/asm/Kbuild @@@ -1,6 -1,6 +1,7 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h generic-y += kvm_para.h + generic-y += poll.h generic-y += siginfo.h diff --combined arch/mn10300/include/uapi/asm/Kbuild index 81271d3af47c,162fbdbb5fd5..b04fd1632051 --- a/arch/mn10300/include/uapi/asm/Kbuild +++ b/arch/mn10300/include/uapi/asm/Kbuild @@@ -1,5 -1,5 +1,6 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h + generic-y += poll.h generic-y += siginfo.h diff --combined arch/powerpc/kvm/book3s_xive.c index 0d750d274c4e,8f016ccf5424..6882bc94eba8 --- a/arch/powerpc/kvm/book3s_xive.c +++ b/arch/powerpc/kvm/book3s_xive.c @@@ -16,7 -16,7 +16,7 @@@ #include <linux/delay.h> #include <linux/percpu.h> #include <linux/cpumask.h> - #include <asm/uaccess.h> + #include <linux/uaccess.h> #include <asm/kvm_book3s.h> #include <asm/kvm_ppc.h> #include <asm/hvcall.h> @@@ -725,8 -725,7 +725,8 @@@ u64 kvmppc_xive_get_icp(struct kvm_vcp /* Return the per-cpu state for state saving/migration */ return (u64)xc->cppr << KVM_REG_PPC_ICP_CPPR_SHIFT | - (u64)xc->mfrr << KVM_REG_PPC_ICP_MFRR_SHIFT; + (u64)xc->mfrr << KVM_REG_PPC_ICP_MFRR_SHIFT | + (u64)0xff << KVM_REG_PPC_ICP_PPRI_SHIFT; } int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) @@@ -1559,7 -1558,7 +1559,7 @@@ static int xive_set_source(struct kvmpp /* * Restore P and Q. If the interrupt was pending, we - * force both P and Q, which will trigger a resend. + * force Q and !P, which will trigger a resend. * * That means that a guest that had both an interrupt * pending (queued) and Q set will restore with only @@@ -1567,7 -1566,7 +1567,7 @@@ * is perfectly fine as coalescing interrupts that haven't * been presented yet is always allowed. */ - if (val & KVM_XICS_PRESENTED || val & KVM_XICS_PENDING) + if (val & KVM_XICS_PRESENTED && !(val & KVM_XICS_PENDING)) state->old_p = true; if (val & KVM_XICS_QUEUED || val & KVM_XICS_PENDING) state->old_q = true; diff --combined arch/score/include/uapi/asm/Kbuild index 81271d3af47c,162fbdbb5fd5..b04fd1632051 --- a/arch/score/include/uapi/asm/Kbuild +++ b/arch/score/include/uapi/asm/Kbuild @@@ -1,5 -1,5 +1,6 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h + generic-y += poll.h generic-y += siginfo.h diff --combined arch/x86/include/uapi/asm/Kbuild index 1e901e421f2d,e9f6b8e332bd..322681622d1e --- a/arch/x86/include/uapi/asm/Kbuild +++ b/arch/x86/include/uapi/asm/Kbuild @@@ -1,7 -1,7 +1,8 @@@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += bpf_perf_event.h generated-y += unistd_32.h generated-y += unistd_64.h generated-y += unistd_x32.h + generic-y += poll.h diff --combined crypto/af_alg.c index 35d4dcea381f,a00a8171b4f6..f41047ab60f5 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@@ -664,7 -664,7 +664,7 @@@ void af_alg_free_areq_sgls(struct af_al unsigned int i; list_for_each_entry_safe(rsgl, tmp, &areq->rsgl_list, list) { - ctx->rcvused -= rsgl->sg_num_bytes; + atomic_sub(rsgl->sg_num_bytes, &ctx->rcvused); af_alg_free_sg(&rsgl->sgl); list_del(&rsgl->list); if (rsgl != &areq->first_rsgl) @@@ -672,15 -672,14 +672,15 @@@ } tsgl = areq->tsgl; - for_each_sg(tsgl, sg, areq->tsgl_entries, i) { - if (!sg_page(sg)) - continue; - put_page(sg_page(sg)); - } + if (tsgl) { + for_each_sg(tsgl, sg, areq->tsgl_entries, i) { + if (!sg_page(sg)) + continue; + put_page(sg_page(sg)); + } - if (areq->tsgl && areq->tsgl_entries) sock_kfree_s(sk, tsgl, areq->tsgl_entries * sizeof(*tsgl)); + } } EXPORT_SYMBOL_GPL(af_alg_free_areq_sgls); @@@ -1022,18 -1021,6 +1022,18 @@@ unlock EXPORT_SYMBOL_GPL(af_alg_sendpage); /** + * af_alg_free_resources - release resources required for crypto request + */ +void af_alg_free_resources(struct af_alg_async_req *areq) +{ + struct sock *sk = areq->sk; + + af_alg_free_areq_sgls(areq); + sock_kfree_s(sk, areq, areq->areqlen); +} +EXPORT_SYMBOL_GPL(af_alg_free_resources); + +/** * af_alg_async_cb - AIO callback handler * * This handler cleans up the struct af_alg_async_req upon completion of the @@@ -1049,26 -1036,31 +1049,26 @@@ void af_alg_async_cb(struct crypto_asyn struct kiocb *iocb = areq->iocb; unsigned int resultlen; - lock_sock(sk); - /* Buffer size written by crypto operation. */ resultlen = areq->outlen; - af_alg_free_areq_sgls(areq); - sock_kfree_s(sk, areq, areq->areqlen); - __sock_put(sk); + af_alg_free_resources(areq); + sock_put(sk); iocb->ki_complete(iocb, err ? err : resultlen, 0); - - release_sock(sk); } EXPORT_SYMBOL_GPL(af_alg_async_cb); /** * af_alg_poll - poll system call handler */ - unsigned int af_alg_poll(struct file *file, struct socket *sock, + __poll_t af_alg_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct alg_sock *ask = alg_sk(sk); struct af_alg_ctx *ctx = ask->private; - unsigned int mask; + __poll_t mask; sock_poll_wait(file, sk_sleep(sk), wait); mask = 0; @@@ -1138,6 -1130,12 +1138,6 @@@ int af_alg_get_rsgl(struct sock *sk, st if (!af_alg_readable(sk)) break; - if (!ctx->used) { - err = af_alg_wait_for_data(sk, flags); - if (err) - return err; - } - seglen = min_t(size_t, (maxsize - len), msg_data_left(msg)); @@@ -1163,7 -1161,7 +1163,7 @@@ areq->last_rsgl = rsgl; len += err; - ctx->rcvused += err; + atomic_add(err, &ctx->rcvused); rsgl->sg_num_bytes = err; iov_iter_advance(&msg->msg_iter, err); } diff --combined crypto/algif_skcipher.c index c5c47b680152,c86207f267e2..f50907430c92 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@@ -72,12 -72,6 +72,12 @@@ static int _skcipher_recvmsg(struct soc int err = 0; size_t len = 0; + if (!ctx->used) { + err = af_alg_wait_for_data(sk, flags); + if (err) + return err; + } + /* Allocate cipher request for current operation. */ areq = af_alg_alloc_areq(sk, sizeof(struct af_alg_async_req) + crypto_skcipher_reqsize(tfm)); @@@ -123,24 -117,13 +123,24 @@@ if (msg->msg_iocb && !is_sync_kiocb(msg->msg_iocb)) { /* AIO operation */ + sock_hold(sk); areq->iocb = msg->msg_iocb; + + /* Remember output size that will be generated. */ + areq->outlen = len; + skcipher_request_set_callback(&areq->cra_u.skcipher_req, CRYPTO_TFM_REQ_MAY_SLEEP, af_alg_async_cb, areq); err = ctx->enc ? crypto_skcipher_encrypt(&areq->cra_u.skcipher_req) : crypto_skcipher_decrypt(&areq->cra_u.skcipher_req); + + /* AIO operation in progress */ + if (err == -EINPROGRESS || err == -EBUSY) + return -EIOCBQUEUED; + + sock_put(sk); } else { /* Synchronous operation */ skcipher_request_set_callback(&areq->cra_u.skcipher_req, @@@ -153,9 -136,19 +153,9 @@@ &ctx->wait); } - /* AIO operation in progress */ - if (err == -EINPROGRESS) { - sock_hold(sk); - - /* Remember output size that will be generated. */ - areq->outlen = len; - - return -EIOCBQUEUED; - } free: - af_alg_free_areq_sgls(areq); - sock_kfree_s(sk, areq, areq->areqlen); + af_alg_free_resources(areq); return err ? err : len; } @@@ -193,7 -186,6 +193,6 @@@ out return ret; } - static struct proto_ops algif_skcipher_ops = { .family = PF_ALG, @@@ -390,7 -382,7 +389,7 @@@ static int skcipher_accept_parent_nokey INIT_LIST_HEAD(&ctx->tsgl_list); ctx->len = len; ctx->used = 0; - ctx->rcvused = 0; + atomic_set(&ctx->rcvused, 0); ctx->more = 0; ctx->merge = 0; ctx->enc = 0; diff --combined drivers/android/binder.c index a7ecfde66b7b,fdc951083b07..cc89d0d2b965 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@@ -482,8 -482,7 +482,8 @@@ enum binder_deferred_state * @tsk task_struct for group_leader of process * (invariant after initialized) * @files files_struct for process - * (invariant after initialized) + * (protected by @files_lock) + * @files_lock mutex to protect @files * @deferred_work_node: element for binder_deferred_list * (protected by binder_deferred_lock) * @deferred_work: bitmap of deferred work to perform @@@ -531,7 -530,6 +531,7 @@@ struct binder_proc int pid; struct task_struct *tsk; struct files_struct *files; + struct mutex files_lock; struct hlist_node deferred_work_node; int deferred_work; bool is_dead; @@@ -879,26 -877,20 +879,26 @@@ static void binder_inc_node_tmpref_iloc static int task_get_unused_fd_flags(struct binder_proc *proc, int flags) { - struct files_struct *files = proc->files; unsigned long rlim_cur; unsigned long irqs; + int ret; - if (files == NULL) - return -ESRCH; - - if (!lock_task_sighand(proc->tsk, &irqs)) - return -EMFILE; - + mutex_lock(&proc->files_lock); + if (proc->files == NULL) { + ret = -ESRCH; + goto err; + } + if (!lock_task_sighand(proc->tsk, &irqs)) { + ret = -EMFILE; + goto err; + } rlim_cur = task_rlimit(proc->tsk, RLIMIT_NOFILE); unlock_task_sighand(proc->tsk, &irqs); - return __alloc_fd(files, 0, rlim_cur, flags); + ret = __alloc_fd(proc->files, 0, rlim_cur, flags); +err: + mutex_unlock(&proc->files_lock); + return ret; } /* @@@ -907,10 -899,8 +907,10 @@@ static void task_fd_install( struct binder_proc *proc, unsigned int fd, struct file *file) { + mutex_lock(&proc->files_lock); if (proc->files) __fd_install(proc->files, fd, file); + mutex_unlock(&proc->files_lock); } /* @@@ -920,11 -910,9 +920,11 @@@ static long task_close_fd(struct binder { int retval; - if (proc->files == NULL) - return -ESRCH; - + mutex_lock(&proc->files_lock); + if (proc->files == NULL) { + retval = -ESRCH; + goto err; + } retval = __close_fd(proc->files, fd); /* can't restart close syscall because file table entry was cleared */ if (unlikely(retval == -ERESTARTSYS || @@@ -932,8 -920,7 +932,8 @@@ retval == -ERESTARTNOHAND || retval == -ERESTART_RESTARTBLOCK)) retval = -EINTR; - +err: + mutex_unlock(&proc->files_lock); return retval; } @@@ -1961,26 -1948,6 +1961,26 @@@ static void binder_send_failed_reply(st } /** + * binder_cleanup_transaction() - cleans up undelivered transaction + * @t: transaction that needs to be cleaned up + * @reason: reason the transaction wasn't delivered + * @error_code: error to return to caller (if synchronous call) + */ +static void binder_cleanup_transaction(struct binder_transaction *t, + const char *reason, + uint32_t error_code) +{ + if (t->buffer->target_node && !(t->flags & TF_ONE_WAY)) { + binder_send_failed_reply(t, error_code); + } else { + binder_debug(BINDER_DEBUG_DEAD_TRANSACTION, + "undelivered transaction %d, %s\n", + t->debug_id, reason); + binder_free_transaction(t); + } +} + +/** * binder_validate_object() - checks for a valid metadata object in a buffer. * @buffer: binder_buffer that we're parsing. * @offset: offset in the buffer at which to validate an object. @@@ -4048,20 -4015,12 +4048,20 @@@ retry if (put_user(cmd, (uint32_t __user *)ptr)) { if (t_from) binder_thread_dec_tmpref(t_from); + + binder_cleanup_transaction(t, "put_user failed", + BR_FAILED_REPLY); + return -EFAULT; } ptr += sizeof(uint32_t); if (copy_to_user(ptr, &tr, sizeof(tr))) { if (t_from) binder_thread_dec_tmpref(t_from); + + binder_cleanup_transaction(t, "copy_to_user failed", + BR_FAILED_REPLY); + return -EFAULT; } ptr += sizeof(tr); @@@ -4131,9 -4090,15 +4131,9 @@@ static void binder_release_work(struct struct binder_transaction *t; t = container_of(w, struct binder_transaction, work); - if (t->buffer->target_node && - !(t->flags & TF_ONE_WAY)) { - binder_send_failed_reply(t, BR_DEAD_REPLY); - } else { - binder_debug(BINDER_DEBUG_DEAD_TRANSACTION, - "undelivered transaction %d\n", - t->debug_id); - binder_free_transaction(t); - } + + binder_cleanup_transaction(t, "process died.", + BR_DEAD_REPLY); } break; case BINDER_WORK_RETURN_ERROR: { struct binder_error *e = container_of( @@@ -4311,7 -4276,7 +4311,7 @@@ static int binder_thread_release(struc return active_transactions; } - static unsigned int binder_poll(struct file *filp, + static __poll_t binder_poll(struct file *filp, struct poll_table_struct *wait) { struct binder_proc *proc = filp->private_data; @@@ -4640,9 -4605,7 +4640,9 @@@ static int binder_mmap(struct file *fil ret = binder_alloc_mmap_handler(&proc->alloc, vma); if (ret) return ret; + mutex_lock(&proc->files_lock); proc->files = get_files_struct(current); + mutex_unlock(&proc->files_lock); return 0; err_bad_arg: @@@ -4666,7 -4629,6 +4666,7 @@@ static int binder_open(struct inode *no spin_lock_init(&proc->outer_lock); get_task_struct(current->group_leader); proc->tsk = current->group_leader; + mutex_init(&proc->files_lock); INIT_LIST_HEAD(&proc->todo); proc->default_priority = task_nice(current); binder_dev = container_of(filp->private_data, struct binder_device, @@@ -4919,11 -4881,9 +4919,11 @@@ static void binder_deferred_func(struc files = NULL; if (defer & BINDER_DEFERRED_PUT_FILES) { + mutex_lock(&proc->files_lock); files = proc->files; if (files) proc->files = NULL; + mutex_unlock(&proc->files_lock); } if (defer & BINDER_DEFERRED_FLUSH) diff --combined drivers/gpio/gpiolib.c index 44332b793718,46824c486e1e..a751fa4c722e --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@@ -73,8 -73,7 +73,8 @@@ LIST_HEAD(gpio_devices) static void gpiochip_free_hogs(struct gpio_chip *chip); static int gpiochip_add_irqchip(struct gpio_chip *gpiochip, - struct lock_class_key *key); + struct lock_class_key *lock_key, + struct lock_class_key *request_key); static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip); static int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gpiochip); static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gpiochip); @@@ -604,11 -603,11 +604,11 @@@ struct lineevent_state (GPIOEVENT_REQUEST_RISING_EDGE | \ GPIOEVENT_REQUEST_FALLING_EDGE) - static unsigned int lineevent_poll(struct file *filep, + static __poll_t lineevent_poll(struct file *filep, struct poll_table_struct *wait) { struct lineevent_state *le = filep->private_data; - unsigned int events = 0; + __poll_t events = 0; poll_wait(filep, &le->wait, wait); @@@ -1101,8 -1100,7 +1101,8 @@@ static void gpiochip_setup_devs(void } int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data, - struct lock_class_key *key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { unsigned long flags; int status = 0; @@@ -1248,7 -1246,7 +1248,7 @@@ if (status) goto err_remove_from_list; - status = gpiochip_add_irqchip(chip, key); + status = gpiochip_add_irqchip(chip, lock_key, request_key); if (status) goto err_remove_chip; @@@ -1634,7 -1632,7 +1634,7 @@@ int gpiochip_irq_map(struct irq_domain * This lock class tells lockdep that GPIO irqs are in a different * category than their parents, so it won't report false recursion. */ - irq_set_lockdep_class(irq, chip->irq.lock_key); + irq_set_lockdep_class(irq, chip->irq.lock_key, chip->irq.request_key); irq_set_chip_and_handler(irq, chip->irq.chip, chip->irq.handler); /* Chips that use nested thread handlers have them marked */ if (chip->irq.threaded) @@@ -1714,12 -1712,10 +1714,12 @@@ static int gpiochip_to_irq(struct gpio_ /** * gpiochip_add_irqchip() - adds an IRQ chip to a GPIO chip * @gpiochip: the GPIO chip to add the IRQ chip to - * @lock_key: lockdep class + * @lock_key: lockdep class for IRQ lock + * @request_key: lockdep class for IRQ request */ static int gpiochip_add_irqchip(struct gpio_chip *gpiochip, - struct lock_class_key *lock_key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { struct irq_chip *irqchip = gpiochip->irq.chip; const struct irq_domain_ops *ops; @@@ -1757,7 -1753,6 +1757,7 @@@ gpiochip->to_irq = gpiochip_to_irq; gpiochip->irq.default_type = type; gpiochip->irq.lock_key = lock_key; + gpiochip->irq.request_key = request_key; if (gpiochip->irq.domain_ops) ops = gpiochip->irq.domain_ops; @@@ -1855,8 -1850,7 +1855,8 @@@ static void gpiochip_irqchip_remove(str * @type: the default type for IRQs on this irqchip, pass IRQ_TYPE_NONE * to have the core avoid setting up any default type in the hardware. * @threaded: whether this irqchip uses a nested thread handler - * @lock_key: lockdep class + * @lock_key: lockdep class for IRQ lock + * @request_key: lockdep class for IRQ request * * This function closely associates a certain irqchip with a certain * gpiochip, providing an irq domain to translate the local IRQs to @@@ -1878,8 -1872,7 +1878,8 @@@ int gpiochip_irqchip_add_key(struct gpi irq_flow_handler_t handler, unsigned int type, bool threaded, - struct lock_class_key *lock_key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { struct device_node *of_node; @@@ -1920,7 -1913,6 +1920,7 @@@ gpiochip->irq.default_type = type; gpiochip->to_irq = gpiochip_to_irq; gpiochip->irq.lock_key = lock_key; + gpiochip->irq.request_key = request_key; gpiochip->irq.domain = irq_domain_add_simple(of_node, gpiochip->ngpio, first_irq, &gpiochip_domain_ops, gpiochip); @@@ -1948,8 -1940,7 +1948,8 @@@ EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_ #else /* CONFIG_GPIOLIB_IRQCHIP */ static inline int gpiochip_add_irqchip(struct gpio_chip *gpiochip, - struct lock_class_key *key) + struct lock_class_key *lock_key, + struct lock_class_key *request_key) { return 0; } diff --combined drivers/md/md.c index 4e4dee0ec2de,e638d7199bd4..cb1476214f3f --- a/drivers/md/md.c +++ b/drivers/md/md.c @@@ -7605,9 -7605,7 +7605,9 @@@ static int status_resync(struct seq_fil if (test_bit(MD_RECOVERY_DONE, &mddev->recovery)) /* Still cleaning up */ resync = max_sectors; - } else + } else if (resync > max_sectors) + resync = max_sectors; + else resync -= atomic_read(&mddev->recovery_active); if (resync == 0) { @@@ -7871,10 -7869,10 +7871,10 @@@ static int md_seq_open(struct inode *in } static int md_unloading; - static unsigned int mdstat_poll(struct file *filp, poll_table *wait) + static __poll_t mdstat_poll(struct file *filp, poll_table *wait) { struct seq_file *seq = filp->private_data; - int mask; + __poll_t mask; if (md_unloading) return POLLIN|POLLRDNORM|POLLERR|POLLPRI; diff --combined drivers/media/dvb-core/dvb_ca_en50221.c index d48b61eb01f4,dbb527a2befc..3f6c8bd8f869 --- a/drivers/media/dvb-core/dvb_ca_en50221.c +++ b/drivers/media/dvb-core/dvb_ca_en50221.c @@@ -206,7 -206,7 +206,7 @@@ static int dvb_ca_en50221_write_data(st * @hlen: Number of bytes in haystack. * @needle: Buffer to find. * @nlen: Number of bytes in needle. - * @return Pointer into haystack needle was found at, or NULL if not found. + * return: Pointer into haystack needle was found at, or NULL if not found. */ static char *findstr(char *haystack, int hlen, char *needle, int nlen) { @@@ -226,7 -226,7 +226,7 @@@ /* ************************************************************************** */ /* EN50221 physical interface functions */ -/** +/* * dvb_ca_en50221_check_camstatus - Check CAM status. */ static int dvb_ca_en50221_check_camstatus(struct dvb_ca_private *ca, int slot) @@@ -275,9 -275,9 +275,9 @@@ * @ca: CA instance. * @slot: Slot on interface. * @waitfor: Flags to wait for. - * @timeout_ms: Timeout in milliseconds. + * @timeout_hz: Timeout in milliseconds. * - * @return 0 on success, nonzero on error. + * return: 0 on success, nonzero on error. */ static int dvb_ca_en50221_wait_if_status(struct dvb_ca_private *ca, int slot, u8 waitfor, int timeout_hz) @@@ -325,7 -325,7 +325,7 @@@ * @ca: CA instance. * @slot: Slot id. * - * @return 0 on success, nonzero on failure. + * return: 0 on success, nonzero on failure. */ static int dvb_ca_en50221_link_init(struct dvb_ca_private *ca, int slot) { @@@ -397,11 -397,11 +397,11 @@@ * @ca: CA instance. * @slot: Slot id. * @address: Address to read from. Updated. - * @tupleType: Tuple id byte. Updated. - * @tupleLength: Tuple length. Updated. + * @tuple_type: Tuple id byte. Updated. + * @tuple_length: Tuple length. Updated. * @tuple: Dest buffer for tuple (must be 256 bytes). Updated. * - * @return 0 on success, nonzero on error. + * return: 0 on success, nonzero on error. */ static int dvb_ca_en50221_read_tuple(struct dvb_ca_private *ca, int slot, int *address, int *tuple_type, @@@ -455,7 -455,7 +455,7 @@@ * @ca: CA instance. * @slot: Slot id. * - * @return 0 on success, <0 on failure. + * return: 0 on success, <0 on failure. */ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private *ca, int slot) { @@@ -632,11 -632,10 +632,11 @@@ static int dvb_ca_en50221_set_configopt * @ca: CA instance. * @slot: Slot to read from. * @ebuf: If non-NULL, the data will be written to this buffer. If NULL, - * the data will be added into the buffering system as a normal fragment. + * the data will be added into the buffering system as a normal + * fragment. * @ecount: Size of ebuf. Ignored if ebuf is NULL. * - * @return Number of bytes read, or < 0 on error + * return: Number of bytes read, or < 0 on error */ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot, u8 *ebuf, int ecount) @@@ -785,11 -784,11 +785,11 @@@ exit * * @ca: CA instance. * @slot: Slot to write to. - * @ebuf: The data in this buffer is treated as a complete link-level packet to - * be written. - * @count: Size of ebuf. + * @buf: The data in this buffer is treated as a complete link-level packet to + * be written. + * @bytes_write: Size of ebuf. * - * @return Number of bytes written, or < 0 on error. + * return: Number of bytes written, or < 0 on error. */ static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot, u8 *buf, int bytes_write) @@@ -934,7 -933,7 +934,7 @@@ static int dvb_ca_en50221_slot_shutdown /** * dvb_ca_en50221_camchange_irq - A CAMCHANGE IRQ has occurred. * - * @ca: CA instance. + * @pubca: CA instance. * @slot: Slot concerned. * @change_type: One of the DVB_CA_CAMCHANGE_* values. */ @@@ -964,7 -963,7 +964,7 @@@ EXPORT_SYMBOL(dvb_ca_en50221_camchange_ /** * dvb_ca_en50221_camready_irq - A CAMREADY IRQ has occurred. * - * @ca: CA instance. + * @pubca: CA instance. * @slot: Slot concerned. */ void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221 *pubca, int slot) @@@ -984,7 -983,7 +984,7 @@@ EXPORT_SYMBOL(dvb_ca_en50221_camready_i /** * dvb_ca_en50221_frda_irq - An FR or DA IRQ has occurred. * - * @ca: CA instance. + * @pubca: CA instance. * @slot: Slot concerned. */ void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221 *pubca, int slot) @@@ -1092,7 -1091,7 +1092,7 @@@ static void dvb_ca_en50221_thread_updat * * @ca: CA instance. * @slot: Slot to process. - * @return: 0 .. no change + * return:: 0 .. no change * 1 .. CAM state changed */ @@@ -1297,7 -1296,7 +1297,7 @@@ static void dvb_ca_en50221_thread_state mutex_unlock(&sl->slot_lock); } -/** +/* * Kernel thread which monitors CA slots for CAM changes, and performs data * transfers. */ @@@ -1337,11 -1336,12 +1337,11 @@@ static int dvb_ca_en50221_thread(void * * Real ioctl implementation. * NOTE: CA_SEND_MSG/CA_GET_MSG ioctls have userspace buffers passed to them. * - * @inode: Inode concerned. * @file: File concerned. * @cmd: IOCTL command. - * @arg: Associated argument. + * @parg: Associated argument. * - * @return 0 on success, <0 on error. + * return: 0 on success, <0 on error. */ static int dvb_ca_en50221_io_do_ioctl(struct file *file, unsigned int cmd, void *parg) @@@ -1420,11 -1420,12 +1420,11 @@@ out_unlock /** * Wrapper for ioctl implementation. * - * @inode: Inode concerned. * @file: File concerned. * @cmd: IOCTL command. * @arg: Associated argument. * - * @return 0 on success, <0 on error. + * return: 0 on success, <0 on error. */ static long dvb_ca_en50221_io_ioctl(struct file *file, unsigned int cmd, unsigned long arg) @@@ -1440,7 -1441,7 +1440,7 @@@ * @count: Size of source buffer. * @ppos: Position in file (ignored). * - * @return Number of bytes read, or <0 on error. + * return: Number of bytes read, or <0 on error. */ static ssize_t dvb_ca_en50221_io_write(struct file *file, const char __user *buf, size_t count, @@@ -1535,7 -1536,7 +1535,7 @@@ exit return status; } -/** +/* * Condition for waking up in dvb_ca_en50221_io_read_condition */ static int dvb_ca_en50221_io_read_condition(struct dvb_ca_private *ca, @@@ -1592,7 -1593,7 +1592,7 @@@ nextslot * @count: Size of destination buffer. * @ppos: Position in file (ignored). * - * @return Number of bytes read, or <0 on error. + * return: Number of bytes read, or <0 on error. */ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) @@@ -1701,7 -1702,7 +1701,7 @@@ exit * @inode: Inode concerned. * @file: File concerned. * - * @return 0 on success, <0 on failure. + * return: 0 on success, <0 on failure. */ static int dvb_ca_en50221_io_open(struct inode *inode, struct file *file) { @@@ -1751,7 -1752,7 +1751,7 @@@ * @inode: Inode concerned. * @file: File concerned. * - * @return 0 on success, <0 on failure. + * return: 0 on success, <0 on failure. */ static int dvb_ca_en50221_io_release(struct inode *inode, struct file *file) { @@@ -1780,13 -1781,13 +1780,13 @@@ * @file: File concerned. * @wait: poll wait table. * - * @return Standard poll mask. + * return: Standard poll mask. */ - static unsigned int dvb_ca_en50221_io_poll(struct file *file, poll_table *wait) + static __poll_t dvb_ca_en50221_io_poll(struct file *file, poll_table *wait) { struct dvb_device *dvbdev = file->private_data; struct dvb_ca_private *ca = dvbdev->priv; - unsigned int mask = 0; + __poll_t mask = 0; int slot; int result = 0; @@@ -1837,11 -1838,11 +1837,11 @@@ static const struct dvb_device dvbdev_c * Initialise a new DVB CA EN50221 interface device. * * @dvb_adapter: DVB adapter to attach the new CA device to. - * @ca: The dvb_ca instance. + * @pubca: The dvb_ca instance. * @flags: Flags describing the CA device (DVB_CA_FLAG_*). * @slot_count: Number of slots supported. * - * @return 0 on success, nonzero on failure + * return: 0 on success, nonzero on failure */ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, struct dvb_ca_en50221 *pubca, int flags, int slot_count) @@@ -1928,7 -1929,8 +1928,7 @@@ EXPORT_SYMBOL(dvb_ca_en50221_init) /** * Release a DVB CA EN50221 interface device. * - * @ca_dev: The dvb_device_t instance for the CA device. - * @ca: The associated dvb_ca instance. + * @pubca: The associated dvb_ca instance. */ void dvb_ca_en50221_release(struct dvb_ca_en50221 *pubca) { diff --combined drivers/media/dvb-core/dvb_frontend.c index 2afaa8226342,92e2433415f0..48e16fd003a7 --- a/drivers/media/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb-core/dvb_frontend.c @@@ -369,14 -369,11 +369,14 @@@ static void dvb_frontend_swzigzag_updat } /** - * Performs automatic twiddling of frontend parameters. + * dvb_frontend_swzigzag_autotune - Performs automatic twiddling of frontend + * parameters. * - * @param fe The frontend concerned. - * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT - * @returns Number of complete iterations that have been performed. + * @fe: The frontend concerned. + * @check_wrapped: Checks if an iteration has completed. + * DO NOT SET ON THE FIRST ATTEMPT. + * + * return: Number of complete iterations that have been performed. */ static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) { @@@ -1256,7 -1253,7 +1256,7 @@@ dtv_property_legacy_params_sync(struct * dtv_get_frontend - calls a callback for retrieving DTV parameters * @fe: struct dvb_frontend pointer * @c: struct dtv_frontend_properties pointer (DVBv5 cache) - * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) + * @p_out: struct dvb_frontend_parameters pointer (DVBv3 FE struct) * * This routine calls either the DVBv3 or DVBv5 get_frontend call. * If c is not null, it will update the DVBv5 cache struct pointed by it. @@@ -2470,7 -2467,7 +2470,7 @@@ static int dvb_frontend_handle_ioctl(st } - static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) + static __poll_t dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) { struct dvb_device *dvbdev = file->private_data; struct dvb_frontend *fe = dvbdev->priv; diff --combined drivers/media/platform/sh_veu.c index dedc1b024f6f,15cf51f5d280..976ea0bb5b6c --- a/drivers/media/platform/sh_veu.c +++ b/drivers/media/platform/sh_veu.c @@@ -267,7 -267,7 +267,7 @@@ static void sh_veu_process(struct sh_ve sh_veu_reg_write(veu, VEU_EIER, 1); /* enable interrupt in VEU */ } -/** +/* * sh_veu_device_run() - prepares and starts the device * * This will be called by the framework when it decides to schedule a particular @@@ -1016,7 -1016,7 +1016,7 @@@ static int sh_veu_release(struct file * return 0; } - static unsigned int sh_veu_poll(struct file *file, + static __poll_t sh_veu_poll(struct file *file, struct poll_table_struct *wait) { struct sh_veu_file *veu_file = file->private_data; diff --combined drivers/media/radio/radio-si476x.c index 540ac887a63c,248bd0ffc978..49293dd707b9 --- a/drivers/media/radio/radio-si476x.c +++ b/drivers/media/radio/radio-si476x.c @@@ -158,7 -158,7 +158,7 @@@ enum si476x_ctrl_idx }; static struct v4l2_ctrl_config si476x_ctrls[] = { - /** + /* * SI476X during its station seeking(or tuning) process uses several * parameters to detrmine if "the station" is valid: * @@@ -197,7 -197,7 +197,7 @@@ .step = 2, }, - /** + /* * #V4L2_CID_SI476X_HARMONICS_COUNT -- number of harmonics * built-in power-line noise supression filter is to reject * during AM-mode operation. @@@ -213,7 -213,7 +213,7 @@@ .step = 1, }, - /** + /* * #V4L2_CID_SI476X_DIVERSITY_MODE -- configuration which * two tuners working in diversity mode are to work in. * @@@ -237,7 -237,7 +237,7 @@@ .max = ARRAY_SIZE(phase_diversity_modes) - 1, }, - /** + /* * #V4L2_CID_SI476X_INTERCHIP_LINK -- inter-chip link in * diversity mode indicator. Allows user to determine if two * chips working in diversity mode have established a link @@@ -296,15 -296,11 +296,15 @@@ struct si476x_radio_ops /** * struct si476x_radio - radio device * - * @core: Pointer to underlying core device + * @v4l2dev: Pointer to V4L2 device created by V4L2 subsystem * @videodev: Pointer to video device created by V4L2 subsystem + * @ctrl_handler: V4L2 controls handler + * @core: Pointer to underlying core device * @ops: Vtable of functions. See struct si476x_radio_ops for details - * @kref: Reference counter - * @core_lock: An r/w semaphore to brebvent the deletion of underlying + * @debugfs: pointer to &strucd dentry for debugfs + * @audmode: audio mode, as defined for the rxsubchans field + * at videodev2.h + * * core structure is the radio device is being used */ struct si476x_radio { @@@ -1153,12 -1149,12 +1153,12 @@@ static ssize_t si476x_radio_fops_read(s return rval; } - static unsigned int si476x_radio_fops_poll(struct file *file, + static __poll_t si476x_radio_fops_poll(struct file *file, struct poll_table_struct *pts) { struct si476x_radio *radio = video_drvdata(file); - unsigned long req_events = poll_requested_events(pts); - unsigned int err = v4l2_ctrl_poll(file, pts); + __poll_t req_events = poll_requested_events(pts); + __poll_t err = v4l2_ctrl_poll(file, pts); if (req_events & (POLLIN | POLLRDNORM)) { if (atomic_read(&radio->core->is_alive)) diff --combined drivers/media/radio/radio-wl1273.c index 3cbdc085c65d,4cd4241fc7be..f92b0f9241a9 --- a/drivers/media/radio/radio-wl1273.c +++ b/drivers/media/radio/radio-wl1273.c @@@ -1089,7 -1089,7 +1089,7 @@@ out return r; } - static unsigned int wl1273_fm_fops_poll(struct file *file, + static __poll_t wl1273_fm_fops_poll(struct file *file, struct poll_table_struct *pts) { struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); @@@ -1330,7 -1330,7 +1330,7 @@@ static int wl1273_fm_vidioc_s_input(str /** * wl1273_fm_set_tx_power() - Set the transmission power value. - * @core: A pointer to the device struct. + * @radio: A pointer to the device struct. * @power: The new power value. */ static int wl1273_fm_set_tx_power(struct wl1273_device *radio, u16 power) diff --combined drivers/media/v4l2-core/v4l2-mem2mem.c index bc580fbe18fa,a879d11866bd..186156f8952a --- a/drivers/media/v4l2-core/v4l2-mem2mem.c +++ b/drivers/media/v4l2-core/v4l2-mem2mem.c @@@ -183,7 -183,6 +183,7 @@@ EXPORT_SYMBOL(v4l2_m2m_get_curr_priv) /** * v4l2_m2m_try_run() - select next job to perform and run it if possible + * @m2m_dev: per-device context * * Get next transaction (if present) from the waiting jobs list and run it. */ @@@ -282,7 -281,6 +282,7 @@@ EXPORT_SYMBOL_GPL(v4l2_m2m_try_schedule /** * v4l2_m2m_cancel_job() - cancel pending jobs for the context + * @m2m_ctx: m2m context with jobs to be canceled * * In case of streamoff or release called on any context, * 1] If the context is currently running, then abort job will be called @@@ -500,14 -498,14 +500,14 @@@ int v4l2_m2m_streamoff(struct file *fil } EXPORT_SYMBOL_GPL(v4l2_m2m_streamoff); - unsigned int v4l2_m2m_poll(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, + __poll_t v4l2_m2m_poll(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, struct poll_table_struct *wait) { struct video_device *vfd = video_devdata(file); - unsigned long req_events = poll_requested_events(wait); + __poll_t req_events = poll_requested_events(wait); struct vb2_queue *src_q, *dst_q; struct vb2_buffer *src_vb = NULL, *dst_vb = NULL; - unsigned int rc = 0; + __poll_t rc = 0; unsigned long flags; if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { @@@ -794,11 -792,11 +794,11 @@@ int v4l2_m2m_fop_mmap(struct file *file } EXPORT_SYMBOL_GPL(v4l2_m2m_fop_mmap); - unsigned int v4l2_m2m_fop_poll(struct file *file, poll_table *wait) + __poll_t v4l2_m2m_fop_poll(struct file *file, poll_table *wait) { struct v4l2_fh *fh = file->private_data; struct v4l2_m2m_ctx *m2m_ctx = fh->m2m_ctx; - unsigned int ret; + __poll_t ret; if (m2m_ctx->q_lock) mutex_lock(m2m_ctx->q_lock); diff --combined drivers/media/v4l2-core/videobuf-core.c index e87fb13b22dc,0c5b12b8bb52..9a89d3ae170f --- a/drivers/media/v4l2-core/videobuf-core.c +++ b/drivers/media/v4l2-core/videobuf-core.c @@@ -222,7 -222,7 +222,7 @@@ int videobuf_queue_is_busy(struct video } EXPORT_SYMBOL_GPL(videobuf_queue_is_busy); -/** +/* * __videobuf_free() - free all the buffers and their control structures * * This function can only be called if streaming/reading is off, i.e. no buffers @@@ -1118,13 -1118,13 +1118,13 @@@ done } EXPORT_SYMBOL_GPL(videobuf_read_stream); - unsigned int videobuf_poll_stream(struct file *file, + __poll_t videobuf_poll_stream(struct file *file, struct videobuf_queue *q, poll_table *wait) { - unsigned long req_events = poll_requested_events(wait); + __poll_t req_events = poll_requested_events(wait); struct videobuf_buffer *buf = NULL; - unsigned int rc = 0; + __poll_t rc = 0; videobuf_queue_lock(q); if (q->streaming) { diff --combined drivers/media/v4l2-core/videobuf2-core.c index a8589d96ef72,dc1f683c3b71..0d9f772d6d03 --- a/drivers/media/v4l2-core/videobuf2-core.c +++ b/drivers/media/v4l2-core/videobuf2-core.c @@@ -188,7 -188,7 +188,7 @@@ module_param(debug, int, 0644) static void __vb2_queue_cancel(struct vb2_queue *q); static void __enqueue_in_driver(struct vb2_buffer *vb); -/** +/* * __vb2_buf_mem_alloc() - allocate video memory for the given buffer */ static int __vb2_buf_mem_alloc(struct vb2_buffer *vb) @@@ -229,7 -229,7 +229,7 @@@ free return ret; } -/** +/* * __vb2_buf_mem_free() - free memory of the given buffer */ static void __vb2_buf_mem_free(struct vb2_buffer *vb) @@@ -243,7 -243,7 +243,7 @@@ } } -/** +/* * __vb2_buf_userptr_put() - release userspace memory associated with * a USERPTR buffer */ @@@ -258,7 -258,7 +258,7 @@@ static void __vb2_buf_userptr_put(struc } } -/** +/* * __vb2_plane_dmabuf_put() - release memory associated with * a DMABUF shared plane */ @@@ -277,7 -277,7 +277,7 @@@ static void __vb2_plane_dmabuf_put(stru p->dbuf_mapped = 0; } -/** +/* * __vb2_buf_dmabuf_put() - release memory associated with * a DMABUF shared buffer */ @@@ -289,7 -289,7 +289,7 @@@ static void __vb2_buf_dmabuf_put(struc __vb2_plane_dmabuf_put(vb, &vb->planes[plane]); } -/** +/* * __setup_offsets() - setup unique offsets ("cookies") for every plane in * the buffer. */ @@@ -317,7 -317,7 +317,7 @@@ static void __setup_offsets(struct vb2_ } } -/** +/* * __vb2_queue_alloc() - allocate videobuf buffer structures and (for MMAP type) * video buffer memory for all buffers/planes on the queue and initializes the * queue @@@ -386,7 -386,7 +386,7 @@@ static int __vb2_queue_alloc(struct vb2 return buffer; } -/** +/* * __vb2_free_mem() - release all video buffer memory for a given queue */ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers) @@@ -410,7 -410,7 +410,7 @@@ } } -/** +/* * __vb2_queue_free() - free buffers at the end of the queue - video memory and * related information, if no buffers are left return the queue to an * uninitialized state. Might be called even if the queue has already been freed. @@@ -544,7 -544,7 +544,7 @@@ bool vb2_buffer_in_use(struct vb2_queu } EXPORT_SYMBOL(vb2_buffer_in_use); -/** +/* * __buffers_in_use() - return true if any buffers on the queue are in use and * the queue cannot be freed (by the means of REQBUFS(0)) call */ @@@ -564,7 -564,7 +564,7 @@@ void vb2_core_querybuf(struct vb2_queu } EXPORT_SYMBOL_GPL(vb2_core_querybuf); -/** +/* * __verify_userptr_ops() - verify that all memory operations required for * USERPTR queue type have been provided */ @@@ -577,7 -577,7 +577,7 @@@ static int __verify_userptr_ops(struct return 0; } -/** +/* * __verify_mmap_ops() - verify that all memory operations required for * MMAP queue type have been provided */ @@@ -590,7 -590,7 +590,7 @@@ static int __verify_mmap_ops(struct vb2 return 0; } -/** +/* * __verify_dmabuf_ops() - verify that all memory operations required for * DMABUF queue type have been provided */ @@@ -953,7 -953,7 +953,7 @@@ void vb2_discard_done(struct vb2_queue } EXPORT_SYMBOL_GPL(vb2_discard_done); -/** +/* * __prepare_mmap() - prepare an MMAP buffer */ static int __prepare_mmap(struct vb2_buffer *vb, const void *pb) @@@ -966,7 -966,7 +966,7 @@@ return ret ? ret : call_vb_qop(vb, buf_prepare, vb); } -/** +/* * __prepare_userptr() - prepare a USERPTR buffer */ static int __prepare_userptr(struct vb2_buffer *vb, const void *pb) @@@ -1082,7 -1082,7 +1082,7 @@@ err return ret; } -/** +/* * __prepare_dmabuf() - prepare a DMABUF buffer */ static int __prepare_dmabuf(struct vb2_buffer *vb, const void *pb) @@@ -1215,7 -1215,7 +1215,7 @@@ err return ret; } -/** +/* * __enqueue_in_driver() - enqueue a vb2_buffer in driver for processing */ static void __enqueue_in_driver(struct vb2_buffer *vb) @@@ -1298,7 -1298,7 +1298,7 @@@ int vb2_core_prepare_buf(struct vb2_que } EXPORT_SYMBOL_GPL(vb2_core_prepare_buf); -/** +/* * vb2_start_streaming() - Attempt to start streaming. * @q: videobuf2 queue * @@@ -1427,7 -1427,7 +1427,7 @@@ int vb2_core_qbuf(struct vb2_queue *q, } EXPORT_SYMBOL_GPL(vb2_core_qbuf); -/** +/* * __vb2_wait_for_done_vb() - wait for a buffer to become available * for dequeuing * @@@ -1502,7 -1502,7 +1502,7 @@@ static int __vb2_wait_for_done_vb(struc return 0; } -/** +/* * __vb2_get_done_vb() - get a buffer ready for dequeuing * * Will sleep if required for nonblocking == false. @@@ -1553,7 -1553,7 +1553,7 @@@ int vb2_wait_for_all_buffers(struct vb2 } EXPORT_SYMBOL_GPL(vb2_wait_for_all_buffers); -/** +/* * __vb2_dqbuf() - bring back the buffer to the DEQUEUED state */ static void __vb2_dqbuf(struct vb2_buffer *vb) @@@ -1625,7 -1625,7 +1625,7 @@@ int vb2_core_dqbuf(struct vb2_queue *q } EXPORT_SYMBOL_GPL(vb2_core_dqbuf); -/** +/* * __vb2_queue_cancel() - cancel and stop (pause) streaming * * Removes all queued buffers from driver's queue and all buffers queued by @@@ -1773,7 -1773,7 +1773,7 @@@ int vb2_core_streamoff(struct vb2_queu } EXPORT_SYMBOL_GPL(vb2_core_streamoff); -/** +/* * __find_plane_by_offset() - find plane associated with the given offset off */ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off, @@@ -2018,10 -2018,10 +2018,10 @@@ void vb2_core_queue_release(struct vb2_ } EXPORT_SYMBOL_GPL(vb2_core_queue_release); - unsigned int vb2_core_poll(struct vb2_queue *q, struct file *file, + __poll_t vb2_core_poll(struct vb2_queue *q, struct file *file, poll_table *wait) { - unsigned long req_events = poll_requested_events(wait); + __poll_t req_events = poll_requested_events(wait); struct vb2_buffer *vb = NULL; unsigned long flags; @@@ -2104,7 -2104,7 +2104,7 @@@ } EXPORT_SYMBOL_GPL(vb2_core_poll); -/** +/* * struct vb2_fileio_buf - buffer context used by file io emulator * * vb2 provides a compatibility layer and emulator of file io (read and @@@ -2118,7 -2118,7 +2118,7 @@@ struct vb2_fileio_buf unsigned int queued:1; }; -/** +/* * struct vb2_fileio_data - queue context used by file io emulator * * @cur_index: the index of the buffer currently being read from or @@@ -2155,7 -2155,7 +2155,7 @@@ struct vb2_fileio_data unsigned write_immediately:1; }; -/** +/* * __vb2_init_fileio() - initialize file io emulator * @q: videobuf2 queue * @read: mode selector (1 means read, 0 means write) @@@ -2274,7 -2274,7 +2274,7 @@@ err_kfree return ret; } -/** +/* * __vb2_cleanup_fileio() - free resourced used by file io emulator * @q: videobuf2 queue */ @@@ -2293,7 -2293,7 +2293,7 @@@ static int __vb2_cleanup_fileio(struct return 0; } -/** +/* * __vb2_perform_fileio() - perform a single file io (read or write) operation * @q: videobuf2 queue * @data: pointed to target userspace buffer diff --combined drivers/media/v4l2-core/videobuf2-v4l2.c index 4075314a6989,d2b3a74d14fd..a49f7eb98c2e --- a/drivers/media/v4l2-core/videobuf2-v4l2.c +++ b/drivers/media/v4l2-core/videobuf2-v4l2.c @@@ -49,7 -49,7 +49,7 @@@ module_param(debug, int, 0644) #define V4L2_BUFFER_OUT_FLAGS (V4L2_BUF_FLAG_PFRAME | V4L2_BUF_FLAG_BFRAME | \ V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_TIMECODE) -/** +/* * __verify_planes_array() - verify that the planes array passed in struct * v4l2_buffer from userspace can be safely used */ @@@ -78,7 -78,7 +78,7 @@@ static int __verify_planes_array_core(s return __verify_planes_array(vb, pb); } -/** +/* * __verify_length() - Verify that the bytesused value for each plane fits in * the plane length and that the data offset doesn't exceed the bytesused value. */ @@@ -181,7 -181,7 +181,7 @@@ static int vb2_queue_or_prepare_buf(str return __verify_planes_array(q->bufs[b->index], b); } -/** +/* * __fill_v4l2_buffer() - fill in a struct v4l2_buffer with information to be * returned to userspace */ @@@ -286,7 -286,7 +286,7 @@@ static void __fill_v4l2_buffer(struct v q->last_buffer_dequeued = true; } -/** +/* * __fill_vb2_buffer() - fill a vb2_buffer with information provided in a * v4l2_buffer by the userspace. It also verifies that struct * v4l2_buffer has a valid number of planes. @@@ -446,7 -446,7 +446,7 @@@ static const struct vb2_buf_ops v4l2_bu .copy_timestamp = __copy_timestamp, }; -/** +/* * vb2_querybuf() - query video buffer information * @q: videobuf queue * @b: buffer struct passed from userspace to vidioc_querybuf handler @@@ -671,11 -671,11 +671,11 @@@ void vb2_queue_release(struct vb2_queu } EXPORT_SYMBOL_GPL(vb2_queue_release); - unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait) + __poll_t vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait) { struct video_device *vfd = video_devdata(file); - unsigned long req_events = poll_requested_events(wait); - unsigned int res = 0; + __poll_t req_events = poll_requested_events(wait); + __poll_t res = 0; if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { struct v4l2_fh *fh = file->private_data; @@@ -904,12 -904,12 +904,12 @@@ exit } EXPORT_SYMBOL_GPL(vb2_fop_read); - unsigned int vb2_fop_poll(struct file *file, poll_table *wait) + __poll_t vb2_fop_poll(struct file *file, poll_table *wait) { struct video_device *vdev = video_devdata(file); struct vb2_queue *q = vdev->queue; struct mutex *lock = q->lock ? q->lock : vdev->lock; - unsigned res; + __poll_t res; void *fileio; /* diff --combined drivers/net/ethernet/broadcom/tg3.c index 8995cfefbfcf,5bd4a65a45dd..86ff8b49ee57 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@@ -4,13 -4,11 +4,13 @@@ * Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem(a)redhat.com) * Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik(a)pobox.com) * Copyright (C) 2004 Sun Microsystems Inc. - * Copyright (C) 2005-2014 Broadcom Corporation. + * Copyright (C) 2005-2016 Broadcom Corporation. + * Copyright (C) 2016-2017 Broadcom Limited. * * Firmware is: * Derived from proprietary unpublished source code, - * Copyright (C) 2000-2003 Broadcom Corporation. + * Copyright (C) 2000-2016 Broadcom Corporation. + * Copyright (C) 2016-2017 Broadcom Ltd. * * Permission is hereby granted for the distribution of this firmware * data in hexadecimal or equivalent format, provided this copyright @@@ -3744,7 -3742,7 +3744,7 @@@ static int tg3_load_firmware_cpu(struc } do { - u32 *fw_data = (u32 *)(fw_hdr + 1); + __be32 *fw_data = (__be32 *)(fw_hdr + 1); for (i = 0; i < tg3_fw_data_len(tp, fw_hdr); i++) write_op(tp, cpu_scratch_base + (be32_to_cpu(fw_hdr->base_addr) & 0xffff) + @@@ -10054,16 -10052,6 +10054,16 @@@ static int tg3_reset_hw(struct tg3 *tp tw32(GRC_MODE, tp->grc_mode | val); + /* On one of the AMD platform, MRRS is restricted to 4000 because of + * south bridge limitation. As a workaround, Driver is setting MRRS + * to 2048 instead of default 4096. + */ + if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL && + tp->pdev->subsystem_device == TG3PCI_SUBDEVICE_ID_DELL_5762) { + val = tr32(TG3PCI_DEV_STATUS_CTRL) & ~MAX_READ_REQ_MASK; + tw32(TG3PCI_DEV_STATUS_CTRL, val | MAX_READ_REQ_SIZE_2048); + } + /* Setup the timer prescalar register. Clock is always 66Mhz. */ val = tr32(GRC_MISC_CFG); val &= ~0xff; @@@ -14237,10 -14225,7 +14237,10 @@@ static int tg3_change_mtu(struct net_de /* Reset PHY, otherwise the read DMA engine will be in a mode that * breaks all requests to 256 bytes. */ - if (tg3_asic_rev(tp) == ASIC_REV_57766) + if (tg3_asic_rev(tp) == ASIC_REV_57766 || + tg3_asic_rev(tp) == ASIC_REV_5717 || + tg3_asic_rev(tp) == ASIC_REV_5719 || + tg3_asic_rev(tp) == ASIC_REV_5720) reset_phy = true; err = tg3_restart_hw(tp, reset_phy); diff --combined drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c index 7e089bf906b4,5532a14de82b..5bbcaf8298f6 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c @@@ -241,12 -241,13 +241,13 @@@ static int dwmac4_rx_check_timestamp(vo u32 own, ctxt; int ret = 1; - own = p->des3 & RDES3_OWN; - ctxt = ((p->des3 & RDES3_CONTEXT_DESCRIPTOR) + own = le32_to_cpu(p->des3) & RDES3_OWN; + ctxt = ((le32_to_cpu(p->des3) & RDES3_CONTEXT_DESCRIPTOR) >> RDES3_CONTEXT_DESCRIPTOR_SHIFT); if (likely(!own && ctxt)) { - if ((p->des0 == 0xffffffff) && (p->des1 == 0xffffffff)) + if ((p->des0 == cpu_to_le32(0xffffffff)) && + (p->des1 == cpu_to_le32(0xffffffff))) /* Corrupted value */ ret = -EINVAL; else @@@ -258,20 -259,19 +259,20 @@@ return ret; } -static int dwmac4_wrback_get_rx_timestamp_status(void *desc, u32 ats) +static int dwmac4_wrback_get_rx_timestamp_status(void *desc, void *next_desc, + u32 ats) { struct dma_desc *p = (struct dma_desc *)desc; int ret = -EINVAL; /* Get the status from normal w/b descriptor */ - if (likely(p->des3 & TDES3_RS1V)) { + if (likely(p->des3 & cpu_to_le32(TDES3_RS1V))) { if (likely(le32_to_cpu(p->des1) & RDES1_TIMESTAMP_AVAILABLE)) { int i = 0; /* Check if timestamp is OK from context descriptor */ do { - ret = dwmac4_rx_check_timestamp(desc); + ret = dwmac4_rx_check_timestamp(next_desc); if (ret < 0) goto exit; i++; diff --combined drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 337d53d12e94,0a7ae94b5e00..f1063dc00398 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@@ -482,7 -482,7 +482,7 @@@ static void stmmac_get_rx_hwtstamp(stru desc = np; /* Check if timestamp is available */ - if (priv->hw->desc->get_rx_timestamp_status(desc, priv->adv_ts)) { + if (priv->hw->desc->get_rx_timestamp_status(p, np, priv->adv_ts)) { ns = priv->hw->desc->get_timestamp(desc, priv->adv_ts); netdev_dbg(priv->dev, "get valid RX hw timestamp %llu\n", ns); shhwtstamp = skb_hwtstamps(skb); @@@ -2533,7 -2533,7 +2533,7 @@@ static int stmmac_hw_setup(struct net_d } if (priv->hw->pcs && priv->hw->mac->pcs_ctrl_ane) - priv->hw->mac->pcs_ctrl_ane(priv->hw, 1, priv->hw->ps, 0); + priv->hw->mac->pcs_ctrl_ane(priv->ioaddr, 1, priv->hw->ps, 0); /* set TX and RX rings length */ stmmac_set_rings_length(priv); @@@ -2588,7 -2588,6 +2588,7 @@@ static int stmmac_open(struct net_devic priv->dma_buf_sz = STMMAC_ALIGN(buf_sz); priv->rx_copybreak = STMMAC_RX_COPYBREAK; + priv->mss = 0; ret = alloc_dma_desc_resources(priv); if (ret < 0) { diff --combined drivers/net/ethernet/via/via-rhine.c index 33949248c829,4a70091c16b7..f1fde0b7cda3 --- a/drivers/net/ethernet/via/via-rhine.c +++ b/drivers/net/ethernet/via/via-rhine.c @@@ -995,7 -995,7 +995,7 @@@ static int rhine_init_one_common(struc else name = "Rhine III"; - netdev_info(dev, "VIA %s at 0x%p, %pM, IRQ %d\n", + netdev_info(dev, "VIA %s at %p, %pM, IRQ %d\n", name, ioaddr, dev->dev_addr, rp->irq); dev_set_drvdata(hwdev, dev); @@@ -1150,7 -1150,7 +1150,7 @@@ static int rhine_init_one_platform(stru return -EINVAL; return rhine_init_one_common(&pdev->dev, *quirks, - (long)ioaddr, ioaddr, irq); + (unsigned long)ioaddr, ioaddr, irq); } static int alloc_ring(struct net_device* dev) diff --combined drivers/net/tap.c index 0a886fda0129,c4e91c73568e..f39c6f876e67 --- a/drivers/net/tap.c +++ b/drivers/net/tap.c @@@ -572,10 -572,10 +572,10 @@@ static int tap_release(struct inode *in return 0; } - static unsigned int tap_poll(struct file *file, poll_table *wait) + static __poll_t tap_poll(struct file *file, poll_table *wait) { struct tap_queue *q = file->private_data; - unsigned int mask = POLLERR; + __poll_t mask = POLLERR; if (!q) goto out; @@@ -829,11 -829,8 +829,11 @@@ static ssize_t tap_do_read(struct tap_q DEFINE_WAIT(wait); ssize_t ret = 0; - if (!iov_iter_count(to)) + if (!iov_iter_count(to)) { + if (skb) + kfree_skb(skb); return 0; + } if (skb) goto put; @@@ -1157,14 -1154,11 +1157,14 @@@ static int tap_recvmsg(struct socket *s size_t total_len, int flags) { struct tap_queue *q = container_of(sock, struct tap_queue, sock); + struct sk_buff *skb = m->msg_control; int ret; - if (flags & ~(MSG_DONTWAIT|MSG_TRUNC)) + if (flags & ~(MSG_DONTWAIT|MSG_TRUNC)) { + if (skb) + kfree_skb(skb); return -EINVAL; - ret = tap_do_read(q, &m->msg_iter, flags & MSG_DONTWAIT, - m->msg_control); + } + ret = tap_do_read(q, &m->msg_iter, flags & MSG_DONTWAIT, skb); if (ret > total_len) { m->msg_flags |= MSG_TRUNC; ret = flags & MSG_TRUNC ? ret : total_len; diff --combined drivers/net/tun.c index 4f4a842a1c9c,130b049ac3da..2ffe5dba7e09 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@@ -1248,12 -1248,12 +1248,12 @@@ static void tun_net_init(struct net_dev /* Character device part */ /* Poll */ - static unsigned int tun_chr_poll(struct file *file, poll_table *wait) + static __poll_t tun_chr_poll(struct file *file, poll_table *wait) { struct tun_file *tfile = file->private_data; struct tun_struct *tun = tun_get(tfile); struct sock *sk; - unsigned int mask = 0; + __poll_t mask = 0; if (!tun) return POLLERR; @@@ -1952,11 -1952,8 +1952,11 @@@ static ssize_t tun_do_read(struct tun_s tun_debug(KERN_INFO, tun, "tun_do_read\n"); - if (!iov_iter_count(to)) + if (!iov_iter_count(to)) { + if (skb) + kfree_skb(skb); return 0; + } if (!skb) { /* Read frames from ring */ @@@ -2072,24 -2069,22 +2072,24 @@@ static int tun_recvmsg(struct socket *s { struct tun_file *tfile = container_of(sock, struct tun_file, socket); struct tun_struct *tun = tun_get(tfile); + struct sk_buff *skb = m->msg_control; int ret; - if (!tun) - return -EBADFD; + if (!tun) { + ret = -EBADFD; + goto out_free_skb; + } if (flags & ~(MSG_DONTWAIT|MSG_TRUNC|MSG_ERRQUEUE)) { ret = -EINVAL; - goto out; + goto out_put_tun; } if (flags & MSG_ERRQUEUE) { ret = sock_recv_errqueue(sock->sk, m, total_len, SOL_PACKET, TUN_TX_TIMESTAMP); goto out; } - ret = tun_do_read(tun, tfile, &m->msg_iter, flags & MSG_DONTWAIT, - m->msg_control); + ret = tun_do_read(tun, tfile, &m->msg_iter, flags & MSG_DONTWAIT, skb); if (ret > (ssize_t)total_len) { m->msg_flags |= MSG_TRUNC; ret = flags & MSG_TRUNC ? ret : total_len; @@@ -2097,13 -2092,6 +2097,13 @@@ out: tun_put(tun); return ret; + +out_put_tun: + tun_put(tun); +out_free_skb: + if (skb) + kfree_skb(skb); + return ret; } static int tun_peek_len(struct socket *sock) diff --combined drivers/s390/char/monreader.c index bf4ab4efed73,de7b169004a2..956f662908a6 --- a/drivers/s390/char/monreader.c +++ b/drivers/s390/char/monreader.c @@@ -1,4 -1,3 +1,4 @@@ +// SPDX-License-Identifier: GPL-2.0 /* * Character device driver for reading z/VM *MONITOR service records. * @@@ -429,7 -428,7 +429,7 @@@ out_copy return count; } - static unsigned int mon_poll(struct file *filp, struct poll_table_struct *p) + static __poll_t mon_poll(struct file *filp, struct poll_table_struct *p) { struct mon_private *monpriv = filp->private_data; diff --combined drivers/staging/lustre/lnet/lnet/lib-socket.c index 7d49d4865298,984d76843b19..ed46aaca0ba3 --- a/drivers/staging/lustre/lnet/lnet/lib-socket.c +++ b/drivers/staging/lustre/lnet/lnet/lib-socket.c @@@ -71,12 -71,16 +71,12 @@@ lnet_sock_ioctl(int cmd, unsigned long } sock_filp = sock_alloc_file(sock, 0, NULL); - if (IS_ERR(sock_filp)) { - sock_release(sock); - rc = PTR_ERR(sock_filp); - goto out; - } + if (IS_ERR(sock_filp)) + return PTR_ERR(sock_filp); rc = kernel_sock_unlocked_ioctl(sock_filp, cmd, arg); fput(sock_filp); -out: return rc; } @@@ -314,19 -318,20 +314,20 @@@ lnet_sock_read(struct socket *sock, voi long jiffies_left = timeout * msecs_to_jiffies(MSEC_PER_SEC); unsigned long then; struct timeval tv; + struct kvec iov = { + .iov_base = buffer, + .iov_len = nob + }; + struct msghdr msg = { + .msg_flags = 0 + }; LASSERT(nob > 0); LASSERT(jiffies_left > 0); - for (;;) { - struct kvec iov = { - .iov_base = buffer, - .iov_len = nob - }; - struct msghdr msg = { - .msg_flags = 0 - }; + iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &iov, 1, nob); + for (;;) { /* Set receive timeout to remaining time */ jiffies_to_timeval(jiffies_left, &tv); rc = kernel_setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, @@@ -338,7 -343,7 +339,7 @@@ } then = jiffies; - rc = kernel_recvmsg(sock, &msg, &iov, 1, nob, 0); + rc = sock_recvmsg(sock, &msg, 0); jiffies_left -= jiffies - then; if (rc < 0) @@@ -347,10 -352,7 +348,7 @@@ if (!rc) return -ECONNRESET; - buffer = ((char *)buffer) + rc; - nob -= rc; - - if (!nob) + if (!msg_data_left(&msg)) return 0; if (jiffies_left <= 0) diff --combined drivers/tty/n_tty.c index 539b49adb6af,081bbbb7d49c..478a9b40fd03 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@@ -1762,7 -1762,7 +1762,7 @@@ static void n_tty_set_termios(struct tt { struct n_tty_data *ldata = tty->disc_data; - if (!old || (old->c_lflag ^ tty->termios.c_lflag) & ICANON) { + if (!old || (old->c_lflag ^ tty->termios.c_lflag) & (ICANON | EXTPROC)) { bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE); ldata->line_start = ldata->read_tail; if (!L_ICANON(tty) || !read_cnt(ldata)) { @@@ -2368,10 -2368,10 +2368,10 @@@ break_out * Called without the kernel lock held - fine */ - static unsigned int n_tty_poll(struct tty_struct *tty, struct file *file, + static __poll_t n_tty_poll(struct tty_struct *tty, struct file *file, poll_table *wait) { - unsigned int mask = 0; + __poll_t mask = 0; poll_wait(file, &tty->read_wait, wait); poll_wait(file, &tty->write_wait, wait); @@@ -2425,7 -2425,7 +2425,7 @@@ static int n_tty_ioctl(struct tty_struc return put_user(tty_chars_in_buffer(tty), (int __user *) arg); case TIOCINQ: down_write(&tty->termios_rwsem); - if (L_ICANON(tty)) + if (L_ICANON(tty) && !L_EXTPROC(tty)) retval = inq_canon(ldata); else retval = read_cnt(ldata); diff --combined drivers/usb/core/devio.c index a3fad4ec9870,929a7380be66..31404fc93d99 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@@ -1442,18 -1442,14 +1442,18 @@@ static int proc_do_submiturb(struct usb int number_of_packets = 0; unsigned int stream_id = 0; void *buf; - - if (uurb->flags & ~(USBDEVFS_URB_ISO_ASAP | - USBDEVFS_URB_SHORT_NOT_OK | + unsigned long mask = USBDEVFS_URB_SHORT_NOT_OK | USBDEVFS_URB_BULK_CONTINUATION | USBDEVFS_URB_NO_FSBR | USBDEVFS_URB_ZERO_PACKET | - USBDEVFS_URB_NO_INTERRUPT)) - return -EINVAL; + USBDEVFS_URB_NO_INTERRUPT; + /* USBDEVFS_URB_ISO_ASAP is a special case */ + if (uurb->type == USBDEVFS_URB_TYPE_ISO) + mask |= USBDEVFS_URB_ISO_ASAP; + + if (uurb->flags & ~mask) + return -EINVAL; + if ((unsigned int)uurb->buffer_length >= USBFS_XFER_MAX) return -EINVAL; if (uurb->buffer_length > 0 && !uurb->buffer) @@@ -2572,11 -2568,11 +2572,11 @@@ static long usbdev_compat_ioctl(struct #endif /* No kernel lock - fine */ - static unsigned int usbdev_poll(struct file *file, + static __poll_t usbdev_poll(struct file *file, struct poll_table_struct *wait) { struct usb_dev_state *ps = file->private_data; - unsigned int mask = 0; + __poll_t mask = 0; poll_wait(file, &ps->wait, wait); if (file->f_mode & FMODE_WRITE && !list_empty(&ps->async_completed)) diff --combined drivers/usb/gadget/function/f_fs.c index b6cf5ab5a0a1,17efadd6b395..b540935891af --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@@ -638,10 -638,10 +638,10 @@@ static long ffs_ep0_ioctl(struct file * return ret; } - static unsigned int ffs_ep0_poll(struct file *file, poll_table *wait) + static __poll_t ffs_ep0_poll(struct file *file, poll_table *wait) { struct ffs_data *ffs = file->private_data; - unsigned int mask = POLLWRNORM; + __poll_t mask = POLLWRNORM; int ret; poll_wait(file, &ffs->ev.waitq, wait); @@@ -1012,7 -1012,7 +1012,7 @@@ static ssize_t ffs_epfile_io(struct fil else ret = ep->status; goto error_mutex; - } else if (!(req = usb_ep_alloc_request(ep->ep, GFP_KERNEL))) { + } else if (!(req = usb_ep_alloc_request(ep->ep, GFP_ATOMIC))) { ret = -ENOMEM; } else { req->buf = data; @@@ -2282,18 -2282,9 +2282,18 @@@ static int __ffs_data_do_os_desc(enum f int i; if (len < sizeof(*d) || - d->bFirstInterfaceNumber >= ffs->interfaces_count || - !d->Reserved1) + d->bFirstInterfaceNumber >= ffs->interfaces_count) return -EINVAL; + if (d->Reserved1 != 1) { + /* + * According to the spec, Reserved1 must be set to 1 + * but older kernels incorrectly rejected non-zero + * values. We fix it here to avoid returning EINVAL + * in response to values we used to accept. + */ + pr_debug("usb_ext_compat_desc::Reserved1 forced to 1\n"); + d->Reserved1 = 1; + } for (i = 0; i < ARRAY_SIZE(d->Reserved2); ++i) if (d->Reserved2[i]) return -EINVAL; diff --combined drivers/vhost/net.c index c7bdeb655646,0ed445a17c54..9524ee16878a --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@@ -778,6 -778,16 +778,6 @@@ static void handle_rx(struct vhost_net /* On error, stop handling until the next kick. */ if (unlikely(headcount < 0)) goto out; - if (nvq->rx_array) - msg.msg_control = vhost_net_buf_consume(&nvq->rxq); - /* On overrun, truncate and discard */ - if (unlikely(headcount > UIO_MAXIOV)) { - iov_iter_init(&msg.msg_iter, READ, vq->iov, 1, 1); - err = sock->ops->recvmsg(sock, &msg, - 1, MSG_DONTWAIT | MSG_TRUNC); - pr_debug("Discarded rx packet: len %zd\n", sock_len); - continue; - } /* OK, now we need to know about added descriptors. */ if (!headcount) { if (unlikely(vhost_enable_notify(&net->dev, vq))) { @@@ -790,16 -800,6 +790,16 @@@ * they refilled. */ goto out; } + if (nvq->rx_array) + msg.msg_control = vhost_net_buf_consume(&nvq->rxq); + /* On overrun, truncate and discard */ + if (unlikely(headcount > UIO_MAXIOV)) { + iov_iter_init(&msg.msg_iter, READ, vq->iov, 1, 1); + err = sock->ops->recvmsg(sock, &msg, + 1, MSG_DONTWAIT | MSG_TRUNC); + pr_debug("Discarded rx packet: len %zd\n", sock_len); + continue; + } /* We don't need to be notified again. */ iov_iter_init(&msg.msg_iter, READ, vq->iov, in, vhost_len); fixup = msg.msg_iter; @@@ -1353,7 -1353,7 +1353,7 @@@ static ssize_t vhost_net_chr_write_iter return vhost_chr_write_iter(dev, from); } - static unsigned int vhost_net_chr_poll(struct file *file, poll_table *wait) + static __poll_t vhost_net_chr_poll(struct file *file, poll_table *wait) { struct vhost_net *n = file->private_data; struct vhost_dev *dev = &n->dev; diff --combined drivers/xen/pvcalls-front.c index d1e1d8d2b9d5,74c854955a6b..59fdd347561c --- a/drivers/xen/pvcalls-front.c +++ b/drivers/xen/pvcalls-front.c @@@ -878,7 -878,7 +878,7 @@@ received return ret; } - static unsigned int pvcalls_front_poll_passive(struct file *file, + static __poll_t pvcalls_front_poll_passive(struct file *file, struct pvcalls_bedata *bedata, struct sock_mapping *map, poll_table *wait) @@@ -935,12 -935,12 +935,12 @@@ return 0; } - static unsigned int pvcalls_front_poll_active(struct file *file, + static __poll_t pvcalls_front_poll_active(struct file *file, struct pvcalls_bedata *bedata, struct sock_mapping *map, poll_table *wait) { - unsigned int mask = 0; + __poll_t mask = 0; int32_t in_error, out_error; struct pvcalls_data_intf *intf = map->active.ring; @@@ -958,12 -958,12 +958,12 @@@ return mask; } - unsigned int pvcalls_front_poll(struct file *file, struct socket *sock, + __poll_t pvcalls_front_poll(struct file *file, struct socket *sock, poll_table *wait) { struct pvcalls_bedata *bedata; struct sock_mapping *map; - int ret; + __poll_t ret; pvcalls_enter(); if (!pvcalls_front_dev) { @@@ -1103,7 -1103,7 +1103,7 @@@ static int pvcalls_front_remove(struct kfree(map); } } - if (bedata->ref >= 0) + if (bedata->ref != -1) gnttab_end_foreign_access(bedata->ref, 0, 0); kfree(bedata->ring.sring); kfree(bedata); @@@ -1128,8 -1128,6 +1128,8 @@@ static int pvcalls_front_probe(struct x } versions = xenbus_read(XBT_NIL, dev->otherend, "versions", &len); + if (IS_ERR(versions)) + return PTR_ERR(versions); if (!len) return -EINVAL; if (strcmp(versions, "1")) { diff --combined fs/namei.c index 9cc91fb7f156,bc8f76fb5513..1c0fb97c9425 --- a/fs/namei.c +++ b/fs/namei.c @@@ -1129,9 -1129,18 +1129,9 @@@ static int follow_automount(struct pat * of the daemon to instantiate them before they can be used. */ if (!(nd->flags & (LOOKUP_PARENT | LOOKUP_DIRECTORY | - LOOKUP_OPEN | LOOKUP_CREATE | - LOOKUP_AUTOMOUNT))) { - /* Positive dentry that isn't meant to trigger an - * automount, EISDIR will allow it to be used, - * otherwise there's no mount here "now" so return - * ENOENT. - */ - if (path->dentry->d_inode) - return -EISDIR; - else - return -ENOENT; - } + LOOKUP_OPEN | LOOKUP_CREATE | LOOKUP_AUTOMOUNT)) && + path->dentry->d_inode) + return -EISDIR; if (path->dentry->d_sb->s_user_ns != &init_user_ns) return -EACCES; @@@ -2898,6 -2907,27 +2898,27 @@@ int vfs_create(struct inode *dir, struc } EXPORT_SYMBOL(vfs_create); + int vfs_mkobj(struct dentry *dentry, umode_t mode, + int (*f)(struct dentry *, umode_t, void *), + void *arg) + { + struct inode *dir = dentry->d_parent->d_inode; + int error = may_create(dir, dentry); + if (error) + return error; + + mode &= S_IALLUGO; + mode |= S_IFREG; + error = security_inode_create(dir, dentry, mode); + if (error) + return error; + error = f(dentry, mode, arg); + if (!error) + fsnotify_create(dir, dentry); + return error; + } + EXPORT_SYMBOL(vfs_mkobj); + bool may_open_dev(const struct path *path) { return !(path->mnt->mnt_flags & MNT_NODEV) && diff --combined fs/proc/inode.c index dd0f82622427,5e6f160d96a2..8dacaabb9f37 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@@ -234,11 -234,11 +234,11 @@@ static ssize_t proc_reg_write(struct fi return rv; } - static unsigned int proc_reg_poll(struct file *file, struct poll_table_struct *pts) + static __poll_t proc_reg_poll(struct file *file, struct poll_table_struct *pts) { struct proc_dir_entry *pde = PDE(file_inode(file)); - unsigned int rv = DEFAULT_POLLMASK; - unsigned int (*poll)(struct file *, struct poll_table_struct *); + __poll_t rv = DEFAULT_POLLMASK; + __poll_t (*poll)(struct file *, struct poll_table_struct *); if (use_pde(pde)) { poll = pde->proc_fops->poll; if (poll) @@@ -483,7 -483,7 +483,7 @@@ int proc_fill_super(struct super_block /* User space would break if executables or devices appear on proc */ s->s_iflags |= SB_I_USERNS_VISIBLE | SB_I_NOEXEC | SB_I_NODEV; - s->s_flags |= MS_NODIRATIME | MS_NOSUID | MS_NOEXEC; + s->s_flags |= SB_NODIRATIME | SB_NOSUID | SB_NOEXEC; s->s_blocksize = 1024; s->s_blocksize_bits = 10; s->s_magic = PROC_SUPER_MAGIC; diff --combined fs/proc_namespace.c index b786840facd9,7a3d0ff9b7a8..c8528d587e09 --- a/fs/proc_namespace.c +++ b/fs/proc_namespace.c @@@ -18,12 -18,12 +18,12 @@@ #include "pnode.h" #include "internal.h" - static unsigned mounts_poll(struct file *file, poll_table *wait) + static __poll_t mounts_poll(struct file *file, poll_table *wait) { struct seq_file *m = file->private_data; struct proc_mounts *p = m->private; struct mnt_namespace *ns = p->ns; - unsigned res = POLLIN | POLLRDNORM; + __poll_t res = POLLIN | POLLRDNORM; int event; poll_wait(file, &p->ns->poll, wait); @@@ -45,10 -45,10 +45,10 @@@ struct proc_fs_info static int show_sb_opts(struct seq_file *m, struct super_block *sb) { static const struct proc_fs_info fs_info[] = { - { MS_SYNCHRONOUS, ",sync" }, - { MS_DIRSYNC, ",dirsync" }, - { MS_MANDLOCK, ",mand" }, - { MS_LAZYTIME, ",lazytime" }, + { SB_SYNCHRONOUS, ",sync" }, + { SB_DIRSYNC, ",dirsync" }, + { SB_MANDLOCK, ",mand" }, + { SB_LAZYTIME, ",lazytime" }, { 0, NULL } }; const struct proc_fs_info *fs_infop; diff --combined include/crypto/if_alg.h index f38227a78eae,c670b30e405a..482461d8931d --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@@ -18,7 -18,6 +18,7 @@@ #include <linux/if_alg.h> #include <linux/scatterlist.h> #include <linux/types.h> +#include <linux/atomic.h> #include <net/sock.h> #include <crypto/aead.h> @@@ -151,7 -150,7 +151,7 @@@ struct af_alg_ctx struct crypto_wait wait; size_t used; - size_t rcvused; + atomic_t rcvused; bool more; bool merge; @@@ -216,7 -215,7 +216,7 @@@ static inline int af_alg_rcvbuf(struct struct af_alg_ctx *ctx = ask->private; return max_t(int, max_t(int, sk->sk_rcvbuf & PAGE_MASK, PAGE_SIZE) - - ctx->rcvused, 0); + atomic_read(&ctx->rcvused), 0); } /** @@@ -243,9 -242,8 +243,9 @@@ int af_alg_sendmsg(struct socket *sock unsigned int ivsize); ssize_t af_alg_sendpage(struct socket *sock, struct page *page, int offset, size_t size, int flags); +void af_alg_free_resources(struct af_alg_async_req *areq); void af_alg_async_cb(struct crypto_async_request *_req, int err); - unsigned int af_alg_poll(struct file *file, struct socket *sock, + __poll_t af_alg_poll(struct file *file, struct socket *sock, poll_table *wait); struct af_alg_async_req *af_alg_alloc_areq(struct sock *sk, unsigned int areqlen); diff --combined include/linux/fs.h index 0cd0a7dae99e,03f33d969f99..dccbe0fd38de --- a/include/linux/fs.h +++ b/include/linux/fs.h @@@ -1309,6 -1309,7 +1309,6 @@@ extern int send_sigurg(struct fown_stru #define UMOUNT_UNUSED 0x80000000 /* Flag guaranteed to be unused */ /* sb->s_iflags */ -#define SB_I_CGROUPWB 0x00000001 /* cgroup-aware writeback enabled */ #define SB_I_NOEXEC 0x00000002 /* Ignore executables on this fs */ #define SB_I_NODEV 0x00000004 /* Ignore devices on this fs */ @@@ -1358,7 -1359,7 +1358,7 @@@ struct super_block const struct fscrypt_operations *s_cop; - struct hlist_bl_head s_anon; /* anonymous dentries for (nfs) exporting */ + struct hlist_bl_head s_roots; /* alternate root dentries for NFS */ struct list_head s_mounts; /* list of mounts; _not_ for fs use */ struct block_device *s_bdev; struct backing_dev_info *s_bdi; @@@ -1607,6 -1608,10 +1607,10 @@@ extern int vfs_whiteout(struct inode * extern struct dentry *vfs_tmpfile(struct dentry *dentry, umode_t mode, int open_flag); + int vfs_mkobj(struct dentry *, umode_t, + int (*f)(struct dentry *, umode_t, void *), + void *); + /* * VFS file helper functions. */ @@@ -1697,7 -1702,7 +1701,7 @@@ struct file_operations ssize_t (*write_iter) (struct kiocb *, struct iov_iter *); int (*iterate) (struct file *, struct dir_context *); int (*iterate_shared) (struct file *, struct dir_context *); - unsigned int (*poll) (struct file *, struct poll_table_struct *); + __poll_t (*poll) (struct file *, struct poll_table_struct *); long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); long (*compat_ioctl) (struct file *, unsigned int, unsigned long); int (*mmap) (struct file *, struct vm_area_struct *); @@@ -1855,7 -1860,6 +1859,7 @@@ struct super_operations #define S_DAX 0 /* Make all the DAX code disappear */ #endif #define S_ENCRYPTED 16384 /* Encrypted file (using fs/crypto/) */ +#define S_CGROUPWB 32768 /* Enable cgroup writeback for this inode */ /* * Note that nosuid etc flags are inode-specific: setting some file-system @@@ -1872,7 -1876,7 +1876,7 @@@ */ #define __IS_FLG(inode, flg) ((inode)->i_sb->s_flags & (flg)) -static inline bool sb_rdonly(const struct super_block *sb) { return sb->s_flags & MS_RDONLY; } +static inline bool sb_rdonly(const struct super_block *sb) { return sb->s_flags & SB_RDONLY; } #define IS_RDONLY(inode) sb_rdonly((inode)->i_sb) #define IS_SYNC(inode) (__IS_FLG(inode, SB_SYNCHRONOUS) || \ ((inode)->i_flags & S_SYNC)) @@@ -1896,7 -1900,6 +1900,7 @@@ #define IS_NOSEC(inode) ((inode)->i_flags & S_NOSEC) #define IS_DAX(inode) ((inode)->i_flags & S_DAX) #define IS_ENCRYPTED(inode) ((inode)->i_flags & S_ENCRYPTED) +#define IS_CGROUPWB(inode) ((inode)->i_flags & S_CGROUPWB) #define IS_WHITEOUT(inode) (S_ISCHR(inode->i_mode) && \ (inode)->i_rdev == WHITEOUT_DEV) @@@ -3089,8 -3092,7 +3093,8 @@@ static inline int vfs_lstat(const char static inline int vfs_fstatat(int dfd, const char __user *filename, struct kstat *stat, int flags) { - return vfs_statx(dfd, filename, flags, stat, STATX_BASIC_STATS); + return vfs_statx(dfd, filename, flags | AT_NO_AUTOMOUNT, + stat, STATX_BASIC_STATS); } static inline int vfs_fstat(int fd, struct kstat *stat) { @@@ -3196,20 -3198,6 +3200,20 @@@ static inline bool vma_is_dax(struct vm return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host); } +static inline bool vma_is_fsdax(struct vm_area_struct *vma) +{ + struct inode *inode; + + if (!vma->vm_file) + return false; + if (!vma_is_dax(vma)) + return false; + inode = file_inode(vma->vm_file); + if (inode->i_mode == S_IFCHR) + return false; /* device-dax */ + return true; +} + static inline int iocb_flags(struct file *file) { int res = 0; diff --combined include/linux/skbuff.h index a38c80e9f91e,07564bb28c1f..a87e43d16f44 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@@ -1406,7 -1406,8 +1406,7 @@@ static inline struct sk_buff *skb_get(s } /* - * If users == 1, we are the only owner and are can avoid redundant - * atomic change. + * If users == 1, we are the only owner and can avoid redundant atomic changes. */ /** @@@ -3241,7 -3242,7 +3241,7 @@@ struct sk_buff *__skb_recv_datagram(str int *peeked, int *off, int *err); struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock, int *err); - unsigned int datagram_poll(struct file *file, struct socket *sock, + __poll_t datagram_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); int skb_copy_datagram_iter(const struct sk_buff *from, int offset, struct iov_iter *to, int size); diff --combined include/net/sctp/sctp.h index 906a9c0efa71,6b765de288d8..608d123ef25f --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@@ -107,7 -107,7 +107,7 @@@ int sctp_backlog_rcv(struct sock *sk, s int sctp_inet_listen(struct socket *sock, int backlog); void sctp_write_space(struct sock *sk); void sctp_data_ready(struct sock *sk); - unsigned int sctp_poll(struct file *file, struct socket *sock, + __poll_t sctp_poll(struct file *file, struct socket *sock, poll_table *wait); void sctp_sock_rfree(struct sk_buff *skb); void sctp_copy_sock(struct sock *newsk, struct sock *sk, @@@ -195,11 -195,6 +195,11 @@@ void sctp_remaddr_proc_exit(struct net int sctp_offload_init(void); /* + * sctp/stream_sched.c + */ +void sctp_sched_ops_init(void); + +/* * sctp/stream.c */ int sctp_send_reset_streams(struct sctp_association *asoc, diff --combined include/net/sock.h index 7a7b14e9628a,b33078333518..4fd74e0d1bbb --- a/include/net/sock.h +++ b/include/net/sock.h @@@ -685,7 -685,11 +685,7 @@@ static inline void sk_add_node_rcu(stru static inline void __sk_nulls_add_node_rcu(struct sock *sk, struct hlist_nulls_head *list) { - if (IS_ENABLED(CONFIG_IPV6) && sk->sk_reuseport && - sk->sk_family == AF_INET6) - hlist_nulls_add_tail_rcu(&sk->sk_nulls_node, list); - else - hlist_nulls_add_head_rcu(&sk->sk_nulls_node, list); + hlist_nulls_add_head_rcu(&sk->sk_nulls_node, list); } static inline void sk_nulls_add_node_rcu(struct sock *sk, struct hlist_nulls_head *list) @@@ -1514,11 -1518,6 +1514,11 @@@ static inline bool sock_owned_by_user(c return sk->sk_lock.owned; } +static inline bool sock_owned_by_user_nocheck(const struct sock *sk) +{ + return sk->sk_lock.owned; +} + /* no reclassification while locks are held */ static inline bool sock_allow_reclassification(const struct sock *csk) { @@@ -1583,7 -1582,7 +1583,7 @@@ int sock_no_connect(struct socket *, st int sock_no_socketpair(struct socket *, struct socket *); int sock_no_accept(struct socket *, struct socket *, int, bool); int sock_no_getname(struct socket *, struct sockaddr *, int *, int); - unsigned int sock_no_poll(struct file *, struct socket *, + __poll_t sock_no_poll(struct file *, struct socket *, struct poll_table_struct *); int sock_no_ioctl(struct socket *, unsigned int, unsigned long); int sock_no_listen(struct socket *, int); diff --combined include/net/tcp.h index 6da880d2f022,a6343271c629..50b21a49d870 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@@ -387,7 -387,7 +387,7 @@@ bool tcp_peer_is_proven(struct request_ void tcp_close(struct sock *sk, long timeout); void tcp_init_sock(struct sock *sk); void tcp_init_transfer(struct sock *sk, int bpf_op); - unsigned int tcp_poll(struct file *file, struct socket *sock, + __poll_t tcp_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); @@@ -844,11 -844,12 +844,11 @@@ static inline int tcp_v6_sdif(const str } #endif -/* TCP_SKB_CB reference means this can not be used from early demux */ static inline bool inet_exact_dif_match(struct net *net, struct sk_buff *skb) { #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) if (!net->ipv4.sysctl_tcp_l3mdev_accept && - skb && ipv4_l3mdev_skb(TCP_SKB_CB(skb)->header.h4.flags)) + skb && ipv4_l3mdev_skb(IPCB(skb)->flags)) return true; #endif return false; @@@ -1055,7 -1056,7 +1055,7 @@@ void tcp_rate_skb_sent(struct sock *sk void tcp_rate_skb_delivered(struct sock *sk, struct sk_buff *skb, struct rate_sample *rs); void tcp_rate_gen(struct sock *sk, u32 delivered, u32 lost, - struct rate_sample *rs); + bool is_sack_reneg, struct rate_sample *rs); void tcp_rate_check_app_limited(struct sock *sk); /* These functions determine how the current flow behaves in respect of SACK diff --combined ipc/mqueue.c index 9649ecd8a73a,0cc314a9af97..0d4fe665d638 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@@ -270,13 -270,30 +270,30 @@@ static struct inode *mqueue_get_inode(s * that means the min(mq_maxmsg, max_priorities) * struct * posix_msg_tree_node. */ + + ret = -EINVAL; + if (info->attr.mq_maxmsg <= 0 || info->attr.mq_msgsize <= 0) + goto out_inode; + if (capable(CAP_SYS_RESOURCE)) { + if (info->attr.mq_maxmsg > HARD_MSGMAX || + info->attr.mq_msgsize > HARD_MSGSIZEMAX) + goto out_inode; + } else { + if (info->attr.mq_maxmsg > ipc_ns->mq_msg_max || + info->attr.mq_msgsize > ipc_ns->mq_msgsize_max) + goto out_inode; + } + ret = -EOVERFLOW; + /* check for overflow */ + if (info->attr.mq_msgsize > ULONG_MAX/info->attr.mq_maxmsg) + goto out_inode; mq_treesize = info->attr.mq_maxmsg * sizeof(struct msg_msg) + min_t(unsigned int, info->attr.mq_maxmsg, MQ_PRIO_MAX) * sizeof(struct posix_msg_tree_node); - - mq_bytes = mq_treesize + (info->attr.mq_maxmsg * - info->attr.mq_msgsize); - + mq_bytes = info->attr.mq_maxmsg * info->attr.mq_msgsize; + if (mq_bytes + mq_treesize < mq_bytes) + goto out_inode; + mq_bytes += mq_treesize; spin_lock(&mq_lock); if (u->mq_bytes + mq_bytes < u->mq_bytes || u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) { @@@ -308,8 -325,9 +325,9 @@@ err static int mqueue_fill_super(struct super_block *sb, void *data, int silent) { struct inode *inode; - struct ipc_namespace *ns = sb->s_fs_info; + struct ipc_namespace *ns = data; + sb->s_fs_info = ns; sb->s_iflags |= SB_I_NOEXEC | SB_I_NODEV; sb->s_blocksize = PAGE_SIZE; sb->s_blocksize_bits = PAGE_SHIFT; @@@ -326,18 -344,44 +344,44 @@@ return 0; } + static struct file_system_type mqueue_fs_type; + /* + * Return value is pinned only by reference in ->mq_mnt; it will + * live until ipcns dies. Caller does not need to drop it. + */ + static struct vfsmount *mq_internal_mount(void) + { + struct ipc_namespace *ns = current->nsproxy->ipc_ns; + struct vfsmount *m = ns->mq_mnt; + if (m) + return m; + m = kern_mount_data(&mqueue_fs_type, ns); + spin_lock(&mq_lock); + if (unlikely(ns->mq_mnt)) { + spin_unlock(&mq_lock); + if (!IS_ERR(m)) + kern_unmount(m); + return ns->mq_mnt; + } + if (!IS_ERR(m)) + ns->mq_mnt = m; + spin_unlock(&mq_lock); + return m; + } + static struct dentry *mqueue_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) { - struct ipc_namespace *ns; - if (flags & SB_KERNMOUNT) { - ns = data; - data = NULL; - } else { - ns = current->nsproxy->ipc_ns; - } - return mount_ns(fs_type, flags, data, ns, ns->user_ns, mqueue_fill_super); + struct vfsmount *m; - if (flags & MS_KERNMOUNT) ++ if (flags & SB_KERNMOUNT) + return mount_nodev(fs_type, flags, data, mqueue_fill_super); + m = mq_internal_mount(); + if (IS_ERR(m)) + return ERR_CAST(m); + atomic_inc(&m->mnt_sb->s_active); + down_write(&m->mnt_sb->s_umount); + return dget(m->mnt_root); } static void init_once(void *foo) @@@ -416,11 -460,11 +460,11 @@@ static void mqueue_evict_inode(struct i put_ipc_ns(ipc_ns); } - static int mqueue_create(struct inode *dir, struct dentry *dentry, - umode_t mode, bool excl) + static int mqueue_create_attr(struct dentry *dentry, umode_t mode, void *arg) { + struct inode *dir = dentry->d_parent->d_inode; struct inode *inode; - struct mq_attr *attr = dentry->d_fsdata; + struct mq_attr *attr = arg; int error; struct ipc_namespace *ipc_ns; @@@ -461,6 -505,12 +505,12 @@@ out_unlock return error; } + static int mqueue_create(struct inode *dir, struct dentry *dentry, + umode_t mode, bool excl) + { + return mqueue_create_attr(dentry, mode, NULL); + } + static int mqueue_unlink(struct inode *dir, struct dentry *dentry) { struct inode *inode = d_inode(dentry); @@@ -519,10 -569,10 +569,10 @@@ static int mqueue_flush_file(struct fil return 0; } - static unsigned int mqueue_poll_file(struct file *filp, struct poll_table_struct *poll_tab) + static __poll_t mqueue_poll_file(struct file *filp, struct poll_table_struct *poll_tab) { struct mqueue_inode_info *info = MQUEUE_I(file_inode(filp)); - int retval = 0; + __poll_t retval = 0; poll_wait(filp, &info->wait_q, poll_tab); @@@ -690,96 -740,46 +740,46 @@@ static void remove_notification(struct info->notify_user_ns = NULL; } - static int mq_attr_ok(struct ipc_namespace *ipc_ns, struct mq_attr *attr) - { - int mq_treesize; - unsigned long total_size; - - if (attr->mq_maxmsg <= 0 || attr->mq_msgsize <= 0) - return -EINVAL; - if (capable(CAP_SYS_RESOURCE)) { - if (attr->mq_maxmsg > HARD_MSGMAX || - attr->mq_msgsize > HARD_MSGSIZEMAX) - return -EINVAL; - } else { - if (attr->mq_maxmsg > ipc_ns->mq_msg_max || - attr->mq_msgsize > ipc_ns->mq_msgsize_max) - return -EINVAL; - } - /* check for overflow */ - if (attr->mq_msgsize > ULONG_MAX/attr->mq_maxmsg) - return -EOVERFLOW; - mq_treesize = attr->mq_maxmsg * sizeof(struct msg_msg) + - min_t(unsigned int, attr->mq_maxmsg, MQ_PRIO_MAX) * - sizeof(struct posix_msg_tree_node); - total_size = attr->mq_maxmsg * attr->mq_msgsize; - if (total_size + mq_treesize < total_size) - return -EOVERFLOW; - return 0; - } - - /* - * Invoked when creating a new queue via sys_mq_open - */ - static struct file *do_create(struct ipc_namespace *ipc_ns, struct inode *dir, - struct path *path, int oflag, umode_t mode, + static int prepare_open(struct dentry *dentry, int oflag, int ro, + umode_t mode, struct filename *name, struct mq_attr *attr) { - const struct cred *cred = current_cred(); - int ret; - - if (attr) { - ret = mq_attr_ok(ipc_ns, attr); - if (ret) - return ERR_PTR(ret); - /* store for use during create */ - path->dentry->d_fsdata = attr; - } else { - struct mq_attr def_attr; - - def_attr.mq_maxmsg = min(ipc_ns->mq_msg_max, - ipc_ns->mq_msg_default); - def_attr.mq_msgsize = min(ipc_ns->mq_msgsize_max, - ipc_ns->mq_msgsize_default); - ret = mq_attr_ok(ipc_ns, &def_attr); - if (ret) - return ERR_PTR(ret); - } - - mode &= ~current_umask(); - ret = vfs_create(dir, path->dentry, mode, true); - path->dentry->d_fsdata = NULL; - if (ret) - return ERR_PTR(ret); - return dentry_open(path, oflag, cred); - } - - /* Opens existing queue */ - static struct file *do_open(struct path *path, int oflag) - { static const int oflag2acc[O_ACCMODE] = { MAY_READ, MAY_WRITE, MAY_READ | MAY_WRITE }; int acc; + + if (d_really_is_negative(dentry)) { + if (!(oflag & O_CREAT)) + return -ENOENT; + if (ro) + return ro; + audit_inode_parent_hidden(name, dentry->d_parent); + return vfs_mkobj(dentry, mode & ~current_umask(), + mqueue_create_attr, attr); + } + /* it already existed */ + audit_inode(name, dentry, 0); + if ((oflag & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL)) + return -EEXIST; if ((oflag & O_ACCMODE) == (O_RDWR | O_WRONLY)) - return ERR_PTR(-EINVAL); + return -EINVAL; acc = oflag2acc[oflag & O_ACCMODE]; - if (inode_permission(d_inode(path->dentry), acc)) - return ERR_PTR(-EACCES); - return dentry_open(path, oflag, current_cred()); + return inode_permission(d_inode(dentry), acc); } static int do_mq_open(const char __user *u_name, int oflag, umode_t mode, struct mq_attr *attr) { - struct path path; - struct file *filp; + struct vfsmount *mnt = mq_internal_mount(); + struct dentry *root; struct filename *name; + struct path path; int fd, error; - struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns; - struct vfsmount *mnt = ipc_ns->mq_mnt; - struct dentry *root = mnt->mnt_root; int ro; + if (IS_ERR(mnt)) + return PTR_ERR(mnt); + audit_mq_open(oflag, mode, attr); if (IS_ERR(name = getname(u_name))) @@@ -790,7 -790,7 +790,7 @@@ goto out_putname; ro = mnt_want_write(mnt); /* we'll drop it in any case */ - error = 0; + root = mnt->mnt_root; inode_lock(d_inode(root)); path.dentry = lookup_one_len(name->name, root, strlen(name->name)); if (IS_ERR(path.dentry)) { @@@ -798,38 -798,14 +798,14 @@@ goto out_putfd; } path.mnt = mntget(mnt); - - if (oflag & O_CREAT) { - if (d_really_is_positive(path.dentry)) { /* entry already exists */ - audit_inode(name, path.dentry, 0); - if (oflag & O_EXCL) { - error = -EEXIST; - goto out; - } - filp = do_open(&path, oflag); - } else { - if (ro) { - error = ro; - goto out; - } - audit_inode_parent_hidden(name, root); - filp = do_create(ipc_ns, d_inode(root), &path, - oflag, mode, attr); - } - } else { - if (d_really_is_negative(path.dentry)) { - error = -ENOENT; - goto out; - } - audit_inode(name, path.dentry, 0); - filp = do_open(&path, oflag); + error = prepare_open(path.dentry, oflag, ro, mode, name, attr); + if (!error) { + struct file *file = dentry_open(&path, oflag, current_cred()); + if (!IS_ERR(file)) + fd_install(fd, file); + else + error = PTR_ERR(file); } - - if (!IS_ERR(filp)) - fd_install(fd, filp); - else - error = PTR_ERR(filp); - out: path_put(&path); out_putfd: if (error) { @@@ -863,6 -839,9 +839,9 @@@ SYSCALL_DEFINE1(mq_unlink, const char _ struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns; struct vfsmount *mnt = ipc_ns->mq_mnt; + if (!mnt) + return -ENOENT; + name = getname(u_name); if (IS_ERR(name)) return PTR_ERR(name); @@@ -1589,28 -1568,26 +1568,26 @@@ int mq_init_ns(struct ipc_namespace *ns ns->mq_msgsize_max = DFLT_MSGSIZEMAX; ns->mq_msg_default = DFLT_MSG; ns->mq_msgsize_default = DFLT_MSGSIZE; + ns->mq_mnt = NULL; - ns->mq_mnt = kern_mount_data(&mqueue_fs_type, ns); - if (IS_ERR(ns->mq_mnt)) { - int err = PTR_ERR(ns->mq_mnt); - ns->mq_mnt = NULL; - return err; - } return 0; } void mq_clear_sbinfo(struct ipc_namespace *ns) { - ns->mq_mnt->mnt_sb->s_fs_info = NULL; + if (ns->mq_mnt) + ns->mq_mnt->mnt_sb->s_fs_info = NULL; } void mq_put_mnt(struct ipc_namespace *ns) { - kern_unmount(ns->mq_mnt); + if (ns->mq_mnt) + kern_unmount(ns->mq_mnt); } static int __init init_mqueue_fs(void) { + struct vfsmount *m; int error; mqueue_inode_cachep = kmem_cache_create("mqueue_inode_cache", @@@ -1632,6 -1609,10 +1609,10 @@@ if (error) goto out_filesystem; + m = kern_mount_data(&mqueue_fs_type, &init_ipc_ns); + if (IS_ERR(m)) + goto out_filesystem; + init_ipc_ns.mq_mnt = m; return 0; out_filesystem: diff --combined kernel/events/core.c index 4df5b695bf0d,857c40d98d2c..4dd0e1ea876d --- a/kernel/events/core.c +++ b/kernel/events/core.c @@@ -4511,11 -4511,11 +4511,11 @@@ perf_read(struct file *file, char __use return ret; } - static unsigned int perf_poll(struct file *file, poll_table *wait) + static __poll_t perf_poll(struct file *file, poll_table *wait) { struct perf_event *event = file->private_data; struct ring_buffer *rb; - unsigned int events = POLLHUP; + __poll_t events = POLLHUP; poll_wait(file, &event->waitq, wait); @@@ -6639,7 -6639,6 +6639,7 @@@ static void perf_event_namespaces_outpu struct perf_namespaces_event *namespaces_event = data; struct perf_output_handle handle; struct perf_sample_data sample; + u16 header_size = namespaces_event->event_id.header.size; int ret; if (!perf_event_namespaces_match(event)) @@@ -6650,7 -6649,7 +6650,7 @@@ ret = perf_output_begin(&handle, event, namespaces_event->event_id.header.size); if (ret) - return; + goto out; namespaces_event->event_id.pid = perf_event_pid(event, namespaces_event->task); @@@ -6662,8 -6661,6 +6662,8 @@@ perf_event__output_id_sample(event, &handle, &sample); perf_output_end(&handle); +out: + namespaces_event->event_id.header.size = header_size; } static void perf_fill_ns_link_info(struct perf_ns_link_info *ns_link_info, @@@ -7990,11 -7987,11 +7990,11 @@@ static void bpf_overflow_handler(struc { struct bpf_perf_event_data_kern ctx = { .data = data, - .regs = regs, .event = event, }; int ret = 0; + ctx.regs = perf_arch_bpf_user_pt_regs(regs); preempt_disable(); if (unlikely(__this_cpu_inc_return(bpf_prog_active) != 1)) goto out; diff --combined kernel/printk/printk.c index b9006617710f,8aa27be96012..c2e713f6ae2e --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@@ -920,10 -920,10 +920,10 @@@ static loff_t devkmsg_llseek(struct fil return ret; } - static unsigned int devkmsg_poll(struct file *file, poll_table *wait) + static __poll_t devkmsg_poll(struct file *file, poll_table *wait) { struct devkmsg_user *user = file->private_data; - int ret = 0; + __poll_t ret = 0; if (!user) return POLLERR|POLLNVAL; @@@ -3141,6 -3141,9 +3141,6 @@@ void dump_stack_print_info(const char * void show_regs_print_info(const char *log_lvl) { dump_stack_print_info(log_lvl); - - printk("%stask: %p task.stack: %p\n", - log_lvl, current, task_stack_page(current)); } #endif diff --combined kernel/trace/ring_buffer.c index 9ab18995ff1e,d24d48713ef3..d399b4072951 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@@ -280,8 -280,6 +280,8 @@@ EXPORT_SYMBOL_GPL(ring_buffer_event_dat /* Missed count stored at end */ #define RB_MISSED_STORED (1 << 30) +#define RB_MISSED_FLAGS (RB_MISSED_EVENTS|RB_MISSED_STORED) + struct buffer_data_page { u64 time_stamp; /* page time stamp */ local_t commit; /* write committed index */ @@@ -333,9 -331,7 +333,9 @@@ static void rb_init_page(struct buffer_ */ size_t ring_buffer_page_len(void *page) { - return local_read(&((struct buffer_data_page *)page)->commit) + struct buffer_data_page *bpage = page; + + return (local_read(&bpage->commit) & ~RB_MISSED_FLAGS) + BUF_PAGE_HDR_SIZE; } @@@ -630,7 -626,7 +630,7 @@@ int ring_buffer_wait(struct ring_buffe * Returns POLLIN | POLLRDNORM if data exists in the buffers, * zero otherwise. */ - int ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu, + __poll_t ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu, struct file *filp, poll_table *poll_table) { struct ring_buffer_per_cpu *cpu_buffer; @@@ -1803,6 -1799,12 +1803,6 @@@ void ring_buffer_change_overwrite(struc } EXPORT_SYMBOL_GPL(ring_buffer_change_overwrite); -static __always_inline void * -__rb_data_page_index(struct buffer_data_page *bpage, unsigned index) -{ - return bpage->data + index; -} - static __always_inline void *__rb_page_index(struct buffer_page *bpage, unsigned index) { return bpage->page->data + index; @@@ -4404,13 -4406,8 +4404,13 @@@ void ring_buffer_free_read_page(struct { struct ring_buffer_per_cpu *cpu_buffer = buffer->buffers[cpu]; struct buffer_data_page *bpage = data; + struct page *page = virt_to_page(bpage); unsigned long flags; + /* If the page is still in use someplace else, we can't reuse it */ + if (page_ref_count(page) > 1) + goto out; + local_irq_save(flags); arch_spin_lock(&cpu_buffer->lock); @@@ -4422,7 -4419,6 +4422,7 @@@ arch_spin_unlock(&cpu_buffer->lock); local_irq_restore(flags); + out: free_page((unsigned long)bpage); } EXPORT_SYMBOL_GPL(ring_buffer_free_read_page); diff --combined kernel/trace/trace.c index 2a8d8a294345,1e2a45e87b93..ec54e2e14b71 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@@ -362,7 -362,7 +362,7 @@@ trace_ignore_this_task(struct trace_pid } /** - * trace_pid_filter_add_remove - Add or remove a task from a pid_list + * trace_pid_filter_add_remove_task - Add or remove a task from a pid_list * @pid_list: The list to modify * @self: The current task for fork or NULL for exit * @task: The task to add or remove @@@ -925,7 -925,7 +925,7 @@@ static void tracing_snapshot_instance(s } /** - * trace_snapshot - take a snapshot of the current buffer. + * tracing_snapshot - take a snapshot of the current buffer. * * This causes a swap between the snapshot buffer and the current live * tracing buffer. You can use this to take snapshots of the live @@@ -1004,9 -1004,9 +1004,9 @@@ int tracing_alloc_snapshot(void EXPORT_SYMBOL_GPL(tracing_alloc_snapshot); /** - * trace_snapshot_alloc - allocate and take a snapshot of the current buffer. + * tracing_snapshot_alloc - allocate and take a snapshot of the current buffer. * - * This is similar to trace_snapshot(), but it will allocate the + * This is similar to tracing_snapshot(), but it will allocate the * snapshot buffer if it isn't already allocated. Use this only * where it is safe to sleep, as the allocation may sleep. * @@@ -1303,7 -1303,7 +1303,7 @@@ unsigned long __read_mostly tracing_thr /* * Copy the new maximum trace into the separate maximum-trace * structure. (this way the maximum trace is permanently saved, - * for later retrieval via /sys/kernel/debug/tracing/latency_trace) + * for later retrieval via /sys/kernel/tracing/tracing_max_latency) */ static void __update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu) @@@ -2415,7 -2415,7 +2415,7 @@@ trace_process_export(struct trace_expor entry = ring_buffer_event_data(event); size = ring_buffer_event_length(event); - export->write(entry, size); + export->write(export, entry, size); } static DEFINE_MUTEX(ftrace_export_lock); @@@ -4178,30 -4178,37 +4178,30 @@@ static const struct file_operations sho .llseek = seq_lseek, }; -/* - * The tracer itself will not take this lock, but still we want - * to provide a consistent cpumask to user-space: - */ -static DEFINE_MUTEX(tracing_cpumask_update_lock); - -/* - * Temporary storage for the character representation of the - * CPU bitmask (and one more byte for the newline): - */ -static char mask_str[NR_CPUS + 1]; - static ssize_t tracing_cpumask_read(struct file *filp, char __user *ubuf, size_t count, loff_t *ppos) { struct trace_array *tr = file_inode(filp)->i_private; + char *mask_str; int len; - mutex_lock(&tracing_cpumask_update_lock); + len = snprintf(NULL, 0, "%*pb\n", + cpumask_pr_args(tr->tracing_cpumask)) + 1; + mask_str = kmalloc(len, GFP_KERNEL); + if (!mask_str) + return -ENOMEM; - len = snprintf(mask_str, count, "%*pb\n", + len = snprintf(mask_str, len, "%*pb\n", cpumask_pr_args(tr->tracing_cpumask)); if (len >= count) { count = -EINVAL; goto out_err; } - count = simple_read_from_buffer(ubuf, count, ppos, mask_str, NR_CPUS+1); + count = simple_read_from_buffer(ubuf, count, ppos, mask_str, len); out_err: - mutex_unlock(&tracing_cpumask_update_lock); + kfree(mask_str); return count; } @@@ -4221,6 -4228,8 +4221,6 @@@ tracing_cpumask_write(struct file *filp if (err) goto err_unlock; - mutex_lock(&tracing_cpumask_update_lock); - local_irq_disable(); arch_spin_lock(&tr->max_lock); for_each_tracing_cpu(cpu) { @@@ -4243,6 -4252,8 +4243,6 @@@ local_irq_enable(); cpumask_copy(tr->tracing_cpumask, tracing_cpumask_new); - - mutex_unlock(&tracing_cpumask_update_lock); free_cpumask_var(tracing_cpumask_new); return count; @@@ -5621,7 -5632,7 +5621,7 @@@ static int tracing_release_pipe(struct return 0; } - static unsigned int + static __poll_t trace_poll(struct trace_iterator *iter, struct file *filp, poll_table *poll_table) { struct trace_array *tr = iter->tr; @@@ -5640,7 -5651,7 +5640,7 @@@ filp, poll_table); } - static unsigned int + static __poll_t tracing_poll_pipe(struct file *filp, poll_table *poll_table) { struct trace_iterator *iter = filp->private_data; @@@ -6594,7 -6605,7 +6594,7 @@@ static int tracing_buffers_open(struct return ret; } - static unsigned int + static __poll_t tracing_buffers_poll(struct file *filp, poll_table *poll_table) { struct ftrace_buffer_info *info = filp->private_data; @@@ -6769,7 -6780,7 +6769,7 @@@ tracing_buffers_splice_read(struct fil .spd_release = buffer_spd_release, }; struct buffer_ref *ref; - int entries, size, i; + int entries, i; ssize_t ret = 0; #ifdef CONFIG_TRACER_MAX_TRACE @@@ -6823,6 -6834,14 +6823,6 @@@ break; } - /* - * zero out any left over data, this is going to - * user land. - */ - size = ring_buffer_page_len(ref->page); - if (size < PAGE_SIZE) - memset(ref->page + size, 0, PAGE_SIZE - size); - page = virt_to_page(ref->page); spd.pages[i] = page; @@@ -7580,7 -7599,6 +7580,7 @@@ allocate_trace_buffer(struct trace_arra buf->data = alloc_percpu(struct trace_array_cpu); if (!buf->data) { ring_buffer_free(buf->buffer); + buf->buffer = NULL; return -ENOMEM; } @@@ -7604,9 -7622,7 +7604,9 @@@ static int allocate_trace_buffers(struc allocate_snapshot ? size : 1); if (WARN_ON(ret)) { ring_buffer_free(tr->trace_buffer.buffer); + tr->trace_buffer.buffer = NULL; free_percpu(tr->trace_buffer.data); + tr->trace_buffer.data = NULL; return -ENOMEM; } tr->allocated_snapshot = allocate_snapshot; diff --combined mm/gup.c index e0d82b6706d7,61015793f952..9e17d8db2d6b --- a/mm/gup.c +++ b/mm/gup.c @@@ -848,7 -848,7 +848,7 @@@ static __always_inline long __get_user_ unsigned long nr_pages, struct page **pages, struct vm_area_struct **vmas, - int *locked, bool notify_drop, + int *locked, unsigned int flags) { long ret, pages_done; @@@ -922,7 -922,7 +922,7 @@@ pages++; start += PAGE_SIZE; } - if (notify_drop && lock_dropped && *locked) { + if (lock_dropped && *locked) { /* * We must let the caller know we temporarily dropped the lock * and so the critical section protected by it was lost. @@@ -959,36 -959,12 +959,12 @@@ long get_user_pages_locked(unsigned lon int *locked) { return __get_user_pages_locked(current, current->mm, start, nr_pages, - pages, NULL, locked, true, + pages, NULL, locked, gup_flags | FOLL_TOUCH); } EXPORT_SYMBOL(get_user_pages_locked); /* - * Same as get_user_pages_unlocked(...., FOLL_TOUCH) but it allows for - * tsk, mm to be specified. - * - * NOTE: here FOLL_TOUCH is not set implicitly and must be set by the - * caller if required (just like with __get_user_pages). "FOLL_GET" - * is set implicitly if "pages" is non-NULL. - */ - static __always_inline long __get_user_pages_unlocked(struct task_struct *tsk, - struct mm_struct *mm, unsigned long start, - unsigned long nr_pages, struct page **pages, - unsigned int gup_flags) - { - long ret; - int locked = 1; - - down_read(&mm->mmap_sem); - ret = __get_user_pages_locked(tsk, mm, start, nr_pages, pages, NULL, - &locked, false, gup_flags); - if (locked) - up_read(&mm->mmap_sem); - return ret; - } - - /* * get_user_pages_unlocked() is suitable to replace the form: * * down_read(&mm->mmap_sem); @@@ -1006,8 -982,16 +982,16 @@@ long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages, struct page **pages, unsigned int gup_flags) { - return __get_user_pages_unlocked(current, current->mm, start, nr_pages, - pages, gup_flags | FOLL_TOUCH); + struct mm_struct *mm = current->mm; + int locked = 1; + long ret; + + down_read(&mm->mmap_sem); + ret = __get_user_pages_locked(current, mm, start, nr_pages, pages, NULL, + &locked, gup_flags | FOLL_TOUCH); + if (locked) + up_read(&mm->mmap_sem); + return ret; } EXPORT_SYMBOL(get_user_pages_unlocked); @@@ -1073,7 -1057,7 +1057,7 @@@ long get_user_pages_remote(struct task_ struct vm_area_struct **vmas, int *locked) { return __get_user_pages_locked(tsk, mm, start, nr_pages, pages, vmas, - locked, true, + locked, gup_flags | FOLL_TOUCH | FOLL_REMOTE); } EXPORT_SYMBOL(get_user_pages_remote); @@@ -1090,75 -1074,11 +1074,75 @@@ long get_user_pages(unsigned long start struct vm_area_struct **vmas) { return __get_user_pages_locked(current, current->mm, start, nr_pages, - pages, vmas, NULL, false, + pages, vmas, NULL, gup_flags | FOLL_TOUCH); } EXPORT_SYMBOL(get_user_pages); +#ifdef CONFIG_FS_DAX +/* + * This is the same as get_user_pages() in that it assumes we are + * operating on the current task's mm, but it goes further to validate + * that the vmas associated with the address range are suitable for + * longterm elevated page reference counts. For example, filesystem-dax + * mappings are subject to the lifetime enforced by the filesystem and + * we need guarantees that longterm users like RDMA and V4L2 only + * establish mappings that have a kernel enforced revocation mechanism. + * + * "longterm" == userspace controlled elevated page count lifetime. + * Contrast this to iov_iter_get_pages() usages which are transient. + */ +long get_user_pages_longterm(unsigned long start, unsigned long nr_pages, + unsigned int gup_flags, struct page **pages, + struct vm_area_struct **vmas_arg) +{ + struct vm_area_struct **vmas = vmas_arg; + struct vm_area_struct *vma_prev = NULL; + long rc, i; + + if (!pages) + return -EINVAL; + + if (!vmas) { + vmas = kcalloc(nr_pages, sizeof(struct vm_area_struct *), + GFP_KERNEL); + if (!vmas) + return -ENOMEM; + } + + rc = get_user_pages(start, nr_pages, gup_flags, pages, vmas); + + for (i = 0; i < rc; i++) { + struct vm_area_struct *vma = vmas[i]; + + if (vma == vma_prev) + continue; + + vma_prev = vma; + + if (vma_is_fsdax(vma)) + break; + } + + /* + * Either get_user_pages() failed, or the vma validation + * succeeded, in either case we don't need to put_page() before + * returning. + */ + if (i >= rc) + goto out; + + for (i = 0; i < rc; i++) + put_page(pages[i]); + rc = -EOPNOTSUPP; +out: + if (vmas != vmas_arg) + kfree(vmas); + return rc; +} +EXPORT_SYMBOL(get_user_pages_longterm); +#endif /* CONFIG_FS_DAX */ + /** * populate_vma_page_range() - populate a range of pages in the vma. * @vma: target vma diff --combined mm/memcontrol.c index ac2ffd5e02b9,006aa27f4fb4..9011997d8a5c --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@@ -3777,7 -3777,7 +3777,7 @@@ static int memcg_event_wake(wait_queue_ struct mem_cgroup_event *event = container_of(wait, struct mem_cgroup_event, wait); struct mem_cgroup *memcg = event->memcg; - unsigned long flags = (unsigned long)key; + __poll_t flags = key_to_poll(key); if (flags & POLLHUP) { /* @@@ -6044,7 -6044,7 +6044,7 @@@ void mem_cgroup_swapout(struct page *pa memcg_check_events(memcg, page); if (!mem_cgroup_is_root(memcg)) - css_put(&memcg->css); + css_put_many(&memcg->css, nr_entries); } /** diff --combined net/9p/trans_fd.c index 80f5c79053a4,439014113a5c..d6f7f7cb79c4 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@@ -228,32 -228,31 +228,31 @@@ static void p9_conn_cancel(struct p9_co } } - static int - p9_fd_poll(struct p9_client *client, struct poll_table_struct *pt) + static __poll_t + p9_fd_poll(struct p9_client *client, struct poll_table_struct *pt, int *err) { - int ret, n; + __poll_t ret, n; struct p9_trans_fd *ts = NULL; if (client && client->status == Connected) ts = client->trans; - if (!ts) - return -EREMOTEIO; + if (!ts) { + if (err) + *err = -EREMOTEIO; + return POLLERR; + } if (!ts->rd->f_op->poll) - return -EIO; - - if (!ts->wr->f_op->poll) - return -EIO; - - ret = ts->rd->f_op->poll(ts->rd, pt); - if (ret < 0) - return ret; + ret = DEFAULT_POLLMASK; + else + ret = ts->rd->f_op->poll(ts->rd, pt); if (ts->rd != ts->wr) { - n = ts->wr->f_op->poll(ts->wr, pt); - if (n < 0) - return n; + if (!ts->wr->f_op->poll) + n = DEFAULT_POLLMASK; + else + n = ts->wr->f_op->poll(ts->wr, pt); ret = (ret & ~POLLOUT) | (n & ~POLLIN); } @@@ -298,7 -297,8 +297,8 @@@ static int p9_fd_read(struct p9_client static void p9_read_work(struct work_struct *work) { - int n, err; + __poll_t n; + int err; struct p9_conn *m; int status = REQ_STATUS_ERROR; @@@ -398,7 -398,7 +398,7 @@@ end_clear if (test_and_clear_bit(Rpending, &m->wsched)) n = POLLIN; else - n = p9_fd_poll(m->client, NULL); + n = p9_fd_poll(m->client, NULL, NULL); if ((n & POLLIN) && !test_and_set_bit(Rworksched, &m->wsched)) { p9_debug(P9_DEBUG_TRANS, "sched read work %p\n", m); @@@ -448,7 -448,8 +448,8 @@@ static int p9_fd_write(struct p9_clien static void p9_write_work(struct work_struct *work) { - int n, err; + __poll_t n; + int err; struct p9_conn *m; struct p9_req_t *req; @@@ -506,7 -507,7 +507,7 @@@ end_clear if (test_and_clear_bit(Wpending, &m->wsched)) n = POLLOUT; else - n = p9_fd_poll(m->client, NULL); + n = p9_fd_poll(m->client, NULL, NULL); if ((n & POLLOUT) && !test_and_set_bit(Wworksched, &m->wsched)) { @@@ -581,7 -582,7 +582,7 @@@ p9_pollwait(struct file *filp, wait_que static void p9_conn_create(struct p9_client *client) { - int n; + __poll_t n; struct p9_trans_fd *ts = client->trans; struct p9_conn *m = &ts->conn; @@@ -597,7 -598,7 +598,7 @@@ INIT_LIST_HEAD(&m->poll_pending_link); init_poll_funcptr(&m->pt, p9_pollwait); - n = p9_fd_poll(client, &m->pt); + n = p9_fd_poll(client, &m->pt, NULL); if (n & POLLIN) { p9_debug(P9_DEBUG_TRANS, "mux %p can read\n", m); set_bit(Rpending, &m->wsched); @@@ -617,17 -618,16 +618,16 @@@ static void p9_poll_mux(struct p9_conn *m) { - int n; + __poll_t n; + int err = -ECONNRESET; if (m->err < 0) return; - n = p9_fd_poll(m->client, NULL); - if (n < 0 || n & (POLLERR | POLLHUP | POLLNVAL)) { + n = p9_fd_poll(m->client, NULL, &err); + if (n & (POLLERR | POLLHUP | POLLNVAL)) { p9_debug(P9_DEBUG_TRANS, "error mux %p err %d\n", m, n); - if (n >= 0) - n = -ECONNRESET; - p9_conn_cancel(m, n); + p9_conn_cancel(m, err); } if (n & POLLIN) { @@@ -663,7 -663,7 +663,7 @@@ static int p9_fd_request(struct p9_client *client, struct p9_req_t *req) { - int n; + __poll_t n; struct p9_trans_fd *ts = client->trans; struct p9_conn *m = &ts->conn; @@@ -680,7 -680,7 +680,7 @@@ if (test_and_clear_bit(Wpending, &m->wsched)) n = POLLOUT; else - n = p9_fd_poll(m->client, NULL); + n = p9_fd_poll(m->client, NULL, NULL); if (n & POLLOUT && !test_and_set_bit(Wworksched, &m->wsched)) schedule_work(&m->wq); @@@ -839,6 -839,7 +839,6 @@@ static int p9_socket_open(struct p9_cli if (IS_ERR(file)) { pr_err("%s (%d): failed to map fd\n", __func__, task_pid_nr(current)); - sock_release(csocket); kfree(p); return PTR_ERR(file); } diff --combined net/dccp/proto.c index 9d43c1f40274,cfa9ca9939ce..8b8db3d481bd --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@@ -259,7 -259,6 +259,7 @@@ int dccp_disconnect(struct sock *sk, in { struct inet_connection_sock *icsk = inet_csk(sk); struct inet_sock *inet = inet_sk(sk); + struct dccp_sock *dp = dccp_sk(sk); int err = 0; const int old_state = sk->sk_state; @@@ -279,10 -278,6 +279,10 @@@ sk->sk_err = ECONNRESET; dccp_clear_xmit_timers(sk); + ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk); + ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk); + dp->dccps_hc_rx_ccid = NULL; + dp->dccps_hc_tx_ccid = NULL; __skb_queue_purge(&sk->sk_receive_queue); __skb_queue_purge(&sk->sk_write_queue); @@@ -318,10 -313,10 +318,10 @@@ EXPORT_SYMBOL_GPL(dccp_disconnect) * take care of normal races (between the test and the event) and we don't * go look at any of the socket buffers directly. */ - unsigned int dccp_poll(struct file *file, struct socket *sock, + __poll_t dccp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask; + __poll_t mask; struct sock *sk = sock->sk; sock_poll_wait(file, sk_sleep(sk), wait); diff --combined net/ipv4/tcp.c index f08eebe60446,0b8ca689353b..c4a7ee7f6721 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@@ -493,9 -493,9 +493,9 @@@ static void tcp_tx_timestamp(struct soc * take care of normal races (between the test and the event) and we don't * go look at any of the socket buffers directly. */ - unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) + __poll_t tcp_poll(struct file *file, struct socket *sock, poll_table *wait) { - unsigned int mask; + __poll_t mask; struct sock *sk = sock->sk; const struct tcp_sock *tp = tcp_sk(sk); int state; @@@ -2412,7 -2412,6 +2412,7 @@@ int tcp_disconnect(struct sock *sk, in tp->snd_cwnd_cnt = 0; tp->window_clamp = 0; tcp_set_ca_state(sk, TCP_CA_Open); + tp->is_sack_reneg = 0; tcp_clear_retrans(tp); inet_csk_delack_init(sk); /* Initialize rcv_mss to TCP_MIN_MSS to avoid division by 0 diff --combined net/netfilter/xt_bpf.c index 1f7fbd3c7e5a,fa2ca0a13619..39809253a670 --- a/net/netfilter/xt_bpf.c +++ b/net/netfilter/xt_bpf.c @@@ -27,9 -27,6 +27,9 @@@ static int __bpf_mt_check_bytecode(stru { struct sock_fprog_kern program; + if (len > XT_BPF_MAX_NUM_INSTR) + return -EINVAL; + program.len = len; program.filter = insns; @@@ -55,21 -52,8 +55,8 @@@ static int __bpf_mt_check_fd(int fd, st static int __bpf_mt_check_path(const char *path, struct bpf_prog **ret) { - mm_segment_t oldfs = get_fs(); - int retval, fd; - - if (strnlen(path, XT_BPF_PATH_MAX) == XT_BPF_PATH_MAX) - return -EINVAL; - - set_fs(KERNEL_DS); - fd = bpf_obj_get_user(path, 0); - set_fs(oldfs); - if (fd < 0) - return fd; - - retval = __bpf_mt_check_fd(fd, ret); - sys_close(fd); - return retval; + *ret = bpf_prog_get_type_path(path, BPF_PROG_TYPE_SOCKET_FILTER); + return PTR_ERR_OR_ZERO(*ret); } static int bpf_mt_check(const struct xt_mtchk_param *par) diff --combined net/packet/af_packet.c index da215e5c1399,ef6340e2406a..3b4d6a3cf190 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@@ -1687,6 -1687,7 +1687,6 @@@ static int fanout_add(struct sock *sk, atomic_long_set(&rollover->num, 0); atomic_long_set(&rollover->num_huge, 0); atomic_long_set(&rollover->num_failed, 0); - po->rollover = rollover; } if (type_flags & PACKET_FANOUT_FLAG_UNIQUEID) { @@@ -1744,8 -1745,6 +1744,8 @@@ if (refcount_read(&match->sk_ref) < PACKET_FANOUT_MAX) { __dev_remove_pack(&po->prot_hook); po->fanout = match; + po->rollover = rollover; + rollover = NULL; refcount_set(&match->sk_ref, refcount_read(&match->sk_ref) + 1); __fanout_link(sk, po); err = 0; @@@ -1759,7 -1758,10 +1759,7 @@@ } out: - if (err && rollover) { - kfree_rcu(rollover, rcu); - po->rollover = NULL; - } + kfree(rollover); mutex_unlock(&fanout_mutex); return err; } @@@ -1783,6 -1785,11 +1783,6 @@@ static struct packet_fanout *fanout_rel list_del(&f->list); else f = NULL; - - if (po->rollover) { - kfree_rcu(po->rollover, rcu); - po->rollover = NULL; - } } mutex_unlock(&fanout_mutex); @@@ -3022,7 -3029,6 +3022,7 @@@ static int packet_release(struct socke synchronize_net(); if (f) { + kfree(po->rollover); fanout_release_data(f); kfree(f); } @@@ -3091,10 -3097,6 +3091,10 @@@ static int packet_do_bind(struct sock * if (need_rehook) { if (po->running) { rcu_read_unlock(); + /* prevents packet_notifier() from calling + * register_prot_hook() + */ + po->num = 0; __unregister_prot_hook(sk, true); rcu_read_lock(); dev_curr = po->prot_hook.dev; @@@ -3103,7 -3105,6 +3103,7 @@@ dev->ifindex); } + BUG_ON(po->running); po->num = proto; po->prot_hook.type = proto; @@@ -3842,6 -3843,7 +3842,6 @@@ static int packet_getsockopt(struct soc void *data = &val; union tpacket_stats_u st; struct tpacket_rollover_stats rstats; - struct packet_rollover *rollover; if (level != SOL_PACKET) return -ENOPROTOOPT; @@@ -3920,13 -3922,18 +3920,13 @@@ 0); break; case PACKET_ROLLOVER_STATS: - rcu_read_lock(); - rollover = rcu_dereference(po->rollover); - if (rollover) { - rstats.tp_all = atomic_long_read(&rollover->num); - rstats.tp_huge = atomic_long_read(&rollover->num_huge); - rstats.tp_failed = atomic_long_read(&rollover->num_failed); - data = &rstats; - lv = sizeof(rstats); - } - rcu_read_unlock(); - if (!rollover) + if (!po->rollover) return -EINVAL; + rstats.tp_all = atomic_long_read(&po->rollover->num); + rstats.tp_huge = atomic_long_read(&po->rollover->num_huge); + rstats.tp_failed = atomic_long_read(&po->rollover->num_failed); + data = &rstats; + lv = sizeof(rstats); break; case PACKET_TX_HAS_OFF: val = po->tp_tx_has_off; @@@ -4073,12 -4080,12 +4073,12 @@@ static int packet_ioctl(struct socket * return 0; } - static unsigned int packet_poll(struct file *file, struct socket *sock, + static __poll_t packet_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct packet_sock *po = pkt_sk(sk); - unsigned int mask = datagram_poll(file, sock, wait); + __poll_t mask = datagram_poll(file, sock, wait); spin_lock_bh(&sk->sk_receive_queue.lock); if (po->rx_ring.pg_vec) { diff --combined net/rxrpc/af_rxrpc.c index dcd818fa837e,f8c8953d9295..21ad6a3a465c --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@@ -285,7 -285,6 +285,7 @@@ struct rxrpc_call *rxrpc_kernel_begin_c bool upgrade) { struct rxrpc_conn_parameters cp; + struct rxrpc_call_params p; struct rxrpc_call *call; struct rxrpc_sock *rx = rxrpc_sk(sock->sk); int ret; @@@ -303,10 -302,6 +303,10 @@@ if (key && !key->payload.data[0]) key = NULL; /* a no-security key */ + memset(&p, 0, sizeof(p)); + p.user_call_ID = user_call_ID; + p.tx_total_len = tx_total_len; + memset(&cp, 0, sizeof(cp)); cp.local = rx->local; cp.key = key; @@@ -314,7 -309,8 +314,7 @@@ cp.exclusive = false; cp.upgrade = upgrade; cp.service_id = srx->srx_service; - call = rxrpc_new_client_call(rx, &cp, srx, user_call_ID, tx_total_len, - gfp); + call = rxrpc_new_client_call(rx, &cp, srx, &p, gfp); /* The socket has been unlocked. */ if (!IS_ERR(call)) { call->notify_rx = notify_rx; @@@ -729,12 -725,12 +729,12 @@@ static int rxrpc_getsockopt(struct sock /* * permit an RxRPC socket to be polled */ - static unsigned int rxrpc_poll(struct file *file, struct socket *sock, + static __poll_t rxrpc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct rxrpc_sock *rx = rxrpc_sk(sk); - unsigned int mask; + __poll_t mask; sock_poll_wait(file, sk_sleep(sk), wait); mask = 0; @@@ -860,7 -856,6 +860,7 @@@ static void rxrpc_sock_destructor(struc static int rxrpc_release_sock(struct sock *sk) { struct rxrpc_sock *rx = rxrpc_sk(sk); + struct rxrpc_net *rxnet = rxrpc_net(sock_net(&rx->sk)); _enter("%p{%d,%d}", sk, sk->sk_state, refcount_read(&sk->sk_refcnt)); @@@ -868,19 -863,6 +868,19 @@@ sock_orphan(sk); sk->sk_shutdown = SHUTDOWN_MASK; + /* We want to kill off all connections from a service socket + * as fast as possible because we can't share these; client + * sockets, on the other hand, can share an endpoint. + */ + switch (sk->sk_state) { + case RXRPC_SERVER_BOUND: + case RXRPC_SERVER_BOUND2: + case RXRPC_SERVER_LISTENING: + case RXRPC_SERVER_LISTEN_DISABLED: + rx->local->service_closed = true; + break; + } + spin_lock_bh(&sk->sk_receive_queue.lock); sk->sk_state = RXRPC_CLOSE; spin_unlock_bh(&sk->sk_receive_queue.lock); @@@ -896,8 -878,6 +896,8 @@@ rxrpc_release_calls_on_socket(rx); flush_workqueue(rxrpc_workqueue); rxrpc_purge_queue(&sk->sk_receive_queue); + rxrpc_queue_work(&rxnet->service_conn_reaper); + rxrpc_queue_work(&rxnet->client_conn_reaper); rxrpc_put_local(rx->local); rx->local = NULL; diff --combined net/sctp/socket.c index b4fb6e4886d2,8d3ac79f82e5..8f7536de5f41 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@@ -188,13 -188,13 +188,13 @@@ static void sctp_for_each_tx_datachunk( list_for_each_entry(chunk, &t->transmitted, transmitted_list) cb(chunk); - list_for_each_entry(chunk, &q->retransmit, list) + list_for_each_entry(chunk, &q->retransmit, transmitted_list) cb(chunk); - list_for_each_entry(chunk, &q->sacked, list) + list_for_each_entry(chunk, &q->sacked, transmitted_list) cb(chunk); - list_for_each_entry(chunk, &q->abandoned, list) + list_for_each_entry(chunk, &q->abandoned, transmitted_list) cb(chunk); list_for_each_entry(chunk, &q->out_chunk_list, list) @@@ -3891,17 -3891,13 +3891,17 @@@ static int sctp_setsockopt_reset_stream struct sctp_association *asoc; int retval = -EINVAL; - if (optlen < sizeof(struct sctp_reset_streams)) + if (optlen < sizeof(*params)) return -EINVAL; params = memdup_user(optval, optlen); if (IS_ERR(params)) return PTR_ERR(params); + if (params->srs_number_streams * sizeof(__u16) > + optlen - sizeof(*params)) + goto out; + asoc = sctp_id2assoc(sk, params->srs_assoc_id); if (!asoc) goto out; @@@ -4498,7 -4494,7 +4498,7 @@@ static int sctp_init_sock(struct sock * SCTP_DBG_OBJCNT_INC(sock); local_bh_disable(); - percpu_counter_inc(&sctp_sockets_allocated); + sk_sockets_allocated_inc(sk); sock_prot_inuse_add(net, sk->sk_prot, 1); /* Nothing can fail after this block, otherwise @@@ -4542,7 -4538,7 +4542,7 @@@ static void sctp_destroy_sock(struct so } sctp_endpoint_free(sp->ep); local_bh_disable(); - percpu_counter_dec(&sctp_sockets_allocated); + sk_sockets_allocated_dec(sk); sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); local_bh_enable(); } @@@ -5084,6 -5080,7 +5084,6 @@@ static int sctp_getsockopt_peeloff_comm *newfile = sock_alloc_file(newsock, 0, NULL); if (IS_ERR(*newfile)) { put_unused_fd(retval); - sock_release(newsock); retval = PTR_ERR(*newfile); *newfile = NULL; return retval; @@@ -7500,11 -7497,11 +7500,11 @@@ out * here, again, by modeling the current TCP/UDP code. We don't have * a good way to test with it yet. */ - unsigned int sctp_poll(struct file *file, struct socket *sock, poll_table *wait) + __poll_t sctp_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct sctp_sock *sp = sctp_sk(sk); - unsigned int mask; + __poll_t mask; poll_wait(file, sk_sleep(sk), wait); diff --combined net/socket.c index 05f361faec45,3e5e4f13046c..092baa464afc --- a/net/socket.c +++ b/net/socket.c @@@ -118,7 -118,7 +118,7 @@@ static ssize_t sock_write_iter(struct k static int sock_mmap(struct file *file, struct vm_area_struct *vma); static int sock_close(struct inode *inode, struct file *file); - static unsigned int sock_poll(struct file *file, + static __poll_t sock_poll(struct file *file, struct poll_table_struct *wait); static long sock_ioctl(struct file *file, unsigned int cmd, unsigned long arg); #ifdef CONFIG_COMPAT @@@ -406,10 -406,8 +406,10 @@@ struct file *sock_alloc_file(struct soc name.len = strlen(name.name); } path.dentry = d_alloc_pseudo(sock_mnt->mnt_sb, &name); - if (unlikely(!path.dentry)) + if (unlikely(!path.dentry)) { + sock_release(sock); return ERR_PTR(-ENOMEM); + } path.mnt = mntget(sock_mnt); d_instantiate(path.dentry, SOCK_INODE(sock)); @@@ -417,11 -415,9 +417,11 @@@ file = alloc_file(&path, FMODE_READ | FMODE_WRITE, &socket_file_ops); if (IS_ERR(file)) { - /* drop dentry, keep inode */ + /* drop dentry, keep inode for a bit */ ihold(d_inode(path.dentry)); path_put(&path); + /* ... and now kill it properly */ + sock_release(sock); return file; } @@@ -1095,9 -1091,9 +1095,9 @@@ out_release EXPORT_SYMBOL(sock_create_lite); /* No kernel lock held - perfect */ - static unsigned int sock_poll(struct file *file, poll_table *wait) + static __poll_t sock_poll(struct file *file, poll_table *wait) { - unsigned int busy_flag = 0; + __poll_t busy_flag = 0; struct socket *sock; /* @@@ -1334,9 -1330,19 +1334,9 @@@ SYSCALL_DEFINE3(socket, int, family, in retval = sock_create(family, type, protocol, &sock); if (retval < 0) - goto out; - - retval = sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK)); - if (retval < 0) - goto out_release; - -out: - /* It may be already another descriptor 8) Not kernel problem. */ - return retval; + return retval; -out_release: - sock_release(sock); - return retval; + return sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK)); } /* @@@ -1360,72 -1366,87 +1360,72 @@@ SYSCALL_DEFINE4(socketpair, int, family flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; /* + * reserve descriptors and make sure we won't fail + * to return them to userland. + */ + fd1 = get_unused_fd_flags(flags); + if (unlikely(fd1 < 0)) + return fd1; + + fd2 = get_unused_fd_flags(flags); + if (unlikely(fd2 < 0)) { + put_unused_fd(fd1); + return fd2; + } + + err = put_user(fd1, &usockvec[0]); + if (err) + goto out; + + err = put_user(fd2, &usockvec[1]); + if (err) + goto out; + + /* * Obtain the first socket and check if the underlying protocol * supports the socketpair call. */ err = sock_create(family, type, protocol, &sock1); - if (err < 0) + if (unlikely(err < 0)) goto out; err = sock_create(family, type, protocol, &sock2); - if (err < 0) - goto out_release_1; - - err = sock1->ops->socketpair(sock1, sock2); - if (err < 0) - goto out_release_both; - - fd1 = get_unused_fd_flags(flags); - if (unlikely(fd1 < 0)) { - err = fd1; - goto out_release_both; + if (unlikely(err < 0)) { + sock_release(sock1); + goto out; } - fd2 = get_unused_fd_flags(flags); - if (unlikely(fd2 < 0)) { - err = fd2; - goto out_put_unused_1; + err = sock1->ops->socketpair(sock1, sock2); + if (unlikely(err < 0)) { + sock_release(sock2); + sock_release(sock1); + goto out; } newfile1 = sock_alloc_file(sock1, flags, NULL); if (IS_ERR(newfile1)) { err = PTR_ERR(newfile1); - goto out_put_unused_both; + sock_release(sock2); + goto out; } newfile2 = sock_alloc_file(sock2, flags, NULL); if (IS_ERR(newfile2)) { err = PTR_ERR(newfile2); - goto out_fput_1; + fput(newfile1); + goto out; } - err = put_user(fd1, &usockvec[0]); - if (err) - goto out_fput_both; - - err = put_user(fd2, &usockvec[1]); - if (err) - goto out_fput_both; - audit_fd_pair(fd1, fd2); fd_install(fd1, newfile1); fd_install(fd2, newfile2); - /* fd1 and fd2 may be already another descriptors. - * Not kernel problem. - */ - return 0; -out_fput_both: - fput(newfile2); - fput(newfile1); - put_unused_fd(fd2); - put_unused_fd(fd1); - goto out; - -out_fput_1: - fput(newfile1); - put_unused_fd(fd2); - put_unused_fd(fd1); - sock_release(sock2); - goto out; - -out_put_unused_both: +out: put_unused_fd(fd2); -out_put_unused_1: put_unused_fd(fd1); -out_release_both: - sock_release(sock2); -out_release_1: - sock_release(sock1); -out: return err; } @@@ -1541,6 -1562,7 +1541,6 @@@ SYSCALL_DEFINE4(accept4, int, fd, struc if (IS_ERR(newfile)) { err = PTR_ERR(newfile); put_unused_fd(newfd); - sock_release(newsock); goto out_put; } diff --combined net/sunrpc/cache.c index e68943895be4,c20ac7af7a4c..aa36dad32db1 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@@ -930,10 -930,10 +930,10 @@@ out static DECLARE_WAIT_QUEUE_HEAD(queue_wait); - static unsigned int cache_poll(struct file *filp, poll_table *wait, + static __poll_t cache_poll(struct file *filp, poll_table *wait, struct cache_detail *cd) { - unsigned int mask; + __poll_t mask; struct cache_reader *rp = filp->private_data; struct cache_queue *cq; @@@ -1501,7 -1501,7 +1501,7 @@@ static ssize_t cache_write_procfs(struc return cache_write(filp, buf, count, ppos, cd); } - static unsigned int cache_poll_procfs(struct file *filp, poll_table *wait) + static __poll_t cache_poll_procfs(struct file *filp, poll_table *wait) { struct cache_detail *cd = PDE_DATA(file_inode(filp)); @@@ -1674,7 -1674,7 +1674,7 @@@ void cache_unregister_net(struct cache_ } EXPORT_SYMBOL_GPL(cache_unregister_net); -struct cache_detail *cache_create_net(struct cache_detail *tmpl, struct net *net) +struct cache_detail *cache_create_net(const struct cache_detail *tmpl, struct net *net) { struct cache_detail *cd; int i; @@@ -1720,7 -1720,7 +1720,7 @@@ static ssize_t cache_write_pipefs(struc return cache_write(filp, buf, count, ppos, cd); } - static unsigned int cache_poll_pipefs(struct file *filp, poll_table *wait) + static __poll_t cache_poll_pipefs(struct file *filp, poll_table *wait) { struct cache_detail *cd = RPC_I(file_inode(filp))->private; diff --combined net/tipc/server.c index d60c30342327,0c3b74d1e722..78a292a84afc --- a/net/tipc/server.c +++ b/net/tipc/server.c @@@ -264,8 -264,8 +264,8 @@@ static int tipc_receive_from_sock(struc iov.iov_base = buf; iov.iov_len = s->max_rcvbuf_size; msg.msg_name = &addr; - ret = kernel_recvmsg(con->sock, &msg, &iov, 1, iov.iov_len, - MSG_DONTWAIT); + iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &iov, 1, iov.iov_len); + ret = sock_recvmsg(con->sock, &msg, MSG_DONTWAIT); if (ret <= 0) { kmem_cache_free(s->rcvbuf_cache, buf); goto out_close; @@@ -314,7 -314,6 +314,7 @@@ static int tipc_accept_from_sock(struc newcon->usr_data = s->tipc_conn_new(newcon->conid); if (!newcon->usr_data) { sock_release(newsock); + conn_put(newcon); return -ENOMEM; } @@@ -512,7 -511,7 +512,7 @@@ bool tipc_topsrv_kern_subscr(struct ne s = con->server; scbr = s->tipc_conn_new(*conid); if (!scbr) { - tipc_close_conn(con); + conn_put(con); return false; } diff --combined net/tipc/socket.c index 3b4084480377,d94d25855190..2aa46e8cd8fe --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@@ -710,13 -710,13 +710,13 @@@ static int tipc_getname(struct socket * * imply that the operation will succeed, merely that it should be performed * and will not block. */ - static unsigned int tipc_poll(struct file *file, struct socket *sock, + static __poll_t tipc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct tipc_sock *tsk = tipc_sk(sk); struct tipc_group *grp = tsk->group; - u32 revents = 0; + __poll_t revents = 0; sock_poll_wait(file, sk_sleep(sk), wait); @@@ -727,11 -727,11 +727,11 @@@ switch (sk->sk_state) { case TIPC_ESTABLISHED: + case TIPC_CONNECTING: if (!tsk->cong_link_cnt && !tsk_conn_cong(tsk)) revents |= POLLOUT; /* fall thru' */ case TIPC_LISTEN: - case TIPC_CONNECTING: if (!skb_queue_empty(&sk->sk_receive_queue)) revents |= POLLIN | POLLRDNORM; break; @@@ -1140,7 -1140,7 +1140,7 @@@ void tipc_sk_mcast_rcv(struct net *net __skb_dequeue(arrvq); __skb_queue_tail(inputq, skb); } - refcount_dec(&skb->users); + kfree_skb(skb); spin_unlock_bh(&inputq->lock); continue; } diff --combined security/apparmor/apparmorfs.c index d4fa04d91439,77d30a821b85..4d202b73a0e1 --- a/security/apparmor/apparmorfs.c +++ b/security/apparmor/apparmorfs.c @@@ -571,10 -571,10 +571,10 @@@ static int ns_revision_open(struct inod return 0; } - static unsigned int ns_revision_poll(struct file *file, poll_table *pt) + static __poll_t ns_revision_poll(struct file *file, poll_table *pt) { struct aa_revision *rev = file->private_data; - unsigned int mask = 0; + __poll_t mask = 0; if (rev) { mutex_lock_nested(&rev->ns->lock, rev->ns->level); @@@ -2451,7 -2451,7 +2451,7 @@@ static int __init aa_create_aafs(void aafs_mnt = kern_mount(&aafs_ops); if (IS_ERR(aafs_mnt)) panic("can't set apparmorfs up\n"); - aafs_mnt->mnt_sb->s_flags &= ~MS_NOUSER; + aafs_mnt->mnt_sb->s_flags &= ~SB_NOUSER; /* Populate fs tree. */ error = entry_create_dir(&aa_sfs_entry, NULL); diff --combined sound/core/oss/pcm_oss.c index ceaa51f76591,caa4d0c949bf..eea99b677441 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@@ -455,6 -455,7 +455,6 @@@ static int snd_pcm_hw_param_near(struc v = snd_pcm_hw_param_last(pcm, params, var, dir); else v = snd_pcm_hw_param_first(pcm, params, var, dir); - snd_BUG_ON(v < 0); return v; } @@@ -2672,10 -2673,10 +2672,10 @@@ static int snd_pcm_oss_capture_ready(st runtime->oss.period_frames; } - static unsigned int snd_pcm_oss_poll(struct file *file, poll_table * wait) + static __poll_t snd_pcm_oss_poll(struct file *file, poll_table * wait) { struct snd_pcm_oss_file *pcm_oss_file; - unsigned int mask; + __poll_t mask; struct snd_pcm_substream *psubstream = NULL, *csubstream = NULL; pcm_oss_file = file->private_data; diff --combined sound/core/rawmidi.c index f055ca10bbc1,e7e4930732a3..fae21311723f --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@@ -579,14 -579,15 +579,14 @@@ static int snd_rawmidi_info_user(struc return 0; } -int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info) +static int __snd_rawmidi_info_select(struct snd_card *card, + struct snd_rawmidi_info *info) { struct snd_rawmidi *rmidi; struct snd_rawmidi_str *pstr; struct snd_rawmidi_substream *substream; - mutex_lock(&register_mutex); rmidi = snd_rawmidi_search(card, info->device); - mutex_unlock(&register_mutex); if (!rmidi) return -ENXIO; if (info->stream < 0 || info->stream > 1) @@@ -602,16 -603,6 +602,16 @@@ } return -ENXIO; } + +int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info) +{ + int ret; + + mutex_lock(&register_mutex); + ret = __snd_rawmidi_info_select(card, info); + mutex_unlock(&register_mutex); + return ret; +} EXPORT_SYMBOL(snd_rawmidi_info_select); static int snd_rawmidi_info_select_user(struct snd_card *card, @@@ -1366,11 -1357,11 +1366,11 @@@ static ssize_t snd_rawmidi_write(struc return result; } - static unsigned int snd_rawmidi_poll(struct file *file, poll_table * wait) + static __poll_t snd_rawmidi_poll(struct file *file, poll_table * wait) { struct snd_rawmidi_file *rfile; struct snd_rawmidi_runtime *runtime; - unsigned int mask; + __poll_t mask; rfile = file->private_data; if (rfile->input != NULL) { diff --combined virt/kvm/kvm_main.c index 210bf820385a,ae4985bc8a8a..d6b9370806f8 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@@ -135,11 -135,6 +135,11 @@@ static void kvm_uevent_notify_change(un static unsigned long long kvm_createvm_count; static unsigned long long kvm_active_vms; +__weak void kvm_arch_mmu_notifier_invalidate_range(struct kvm *kvm, + unsigned long start, unsigned long end) +{ +} + bool kvm_is_reserved_pfn(kvm_pfn_t pfn) { if (pfn_valid(pfn)) @@@ -365,9 -360,6 +365,9 @@@ static void kvm_mmu_notifier_invalidate kvm_flush_remote_tlbs(kvm); spin_unlock(&kvm->mmu_lock); + + kvm_arch_mmu_notifier_invalidate_range(kvm, start, end); + srcu_read_unlock(&kvm->srcu, idx); } @@@ -1322,17 -1314,6 +1322,6 @@@ unsigned long kvm_vcpu_gfn_to_hva_prot( return gfn_to_hva_memslot_prot(slot, gfn, writable); } - static int get_user_page_nowait(unsigned long start, int write, - struct page **page) - { - int flags = FOLL_NOWAIT | FOLL_HWPOISON; - - if (write) - flags |= FOLL_WRITE; - - return get_user_pages(start, 1, flags, page, NULL); - } - static inline int check_user_page_hwpoison(unsigned long addr) { int rc, flags = FOLL_HWPOISON | FOLL_WRITE; @@@ -1381,7 -1362,8 +1370,8 @@@ static bool hva_to_pfn_fast(unsigned lo static int hva_to_pfn_slow(unsigned long addr, bool *async, bool write_fault, bool *writable, kvm_pfn_t *pfn) { - struct page *page[1]; + unsigned int flags = FOLL_HWPOISON; + struct page *page; int npages = 0; might_sleep(); @@@ -1389,35 -1371,26 +1379,26 @@@ if (writable) *writable = write_fault; - if (async) { - down_read(&current->mm->mmap_sem); - npages = get_user_page_nowait(addr, write_fault, page); - up_read(&current->mm->mmap_sem); - } else { - unsigned int flags = FOLL_HWPOISON; - - if (write_fault) - flags |= FOLL_WRITE; + if (write_fault) + flags |= FOLL_WRITE; + if (async) + flags |= FOLL_NOWAIT; - npages = get_user_pages_unlocked(addr, 1, page, flags); - } + npages = get_user_pages_unlocked(addr, 1, &page, flags); if (npages != 1) return npages; /* map read fault as writable if possible */ if (unlikely(!write_fault) && writable) { - struct page *wpage[1]; + struct page *wpage; - npages = __get_user_pages_fast(addr, 1, 1, wpage); - if (npages == 1) { + if (__get_user_pages_fast(addr, 1, 1, &wpage) == 1) { *writable = true; - put_page(page[0]); - page[0] = wpage[0]; + put_page(page); + page = wpage; } - - npages = 1; } - *pfn = page_to_pfn(page[0]); + *pfn = page_to_pfn(page); return npages; } @@@ -2073,29 -2046,6 +2054,29 @@@ void kvm_vcpu_mark_page_dirty(struct kv } EXPORT_SYMBOL_GPL(kvm_vcpu_mark_page_dirty); +void kvm_sigset_activate(struct kvm_vcpu *vcpu) +{ + if (!vcpu->sigset_active) + return; + + /* + * This does a lockless modification of ->real_blocked, which is fine + * because, only current can change ->real_blocked and all readers of + * ->real_blocked don't care as long ->real_blocked is always a subset + * of ->blocked. + */ + sigprocmask(SIG_SETMASK, &vcpu->sigset, &current->real_blocked); +} + +void kvm_sigset_deactivate(struct kvm_vcpu *vcpu) +{ + if (!vcpu->sigset_active) + return; + + sigprocmask(SIG_SETMASK, &current->real_blocked, NULL); + sigemptyset(&current->real_blocked); +} + static void grow_halt_poll_ns(struct kvm_vcpu *vcpu) { unsigned int old, val, grow; -- LinuxNextTracking

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Build check errors found: 2018-01-04
by postmaster＠open-mesh.org 04 Jan '18

04 Jan '18

Name of failed tests ==================== master ------ * checkpatch ./net/batman-adv/main.h * checkpatch ./net/batman-adv/sysfs.c * difference between net-next and batadv master Output of different failed tests ================================ master: checkpatch ./net/batman-adv/main.h ------------------------------------------ WARNING: Statements should start on a tabstop #335: FILE: ./net/batman-adv/main.h:335: + typeof(y)_d2 = (y); \ WARNING: Statements should start on a tabstop #336: FILE: ./net/batman-adv/main.h:336: + typeof(x)_dummy = (_d1 - _d2); \ total: 0 errors, 2 warnings, 0 checks, 395 lines checked master: checkpatch ./net/batman-adv/sysfs.c ------------------------------------------- WARNING: Statements should start on a tabstop #919: FILE: ./net/batman-adv/sysfs.c:919: + char ifname[IFNAMSIZ]) total: 0 errors, 1 warnings, 0 checks, 1251 lines checked master: difference between net-next and batadv master ----------------------------------------------------- netnext/include/uapi/linux/batman_adv.h | 2 +- netnext/net/batman-adv/Kconfig | 2 +- netnext/net/batman-adv/Makefile | 2 +- netnext/net/batman-adv/bat_algo.c | 2 +- netnext/net/batman-adv/bat_algo.h | 2 +- netnext/net/batman-adv/bat_iv_ogm.c | 2 +- netnext/net/batman-adv/bat_iv_ogm.h | 2 +- netnext/net/batman-adv/bat_v.c | 2 +- netnext/net/batman-adv/bat_v.h | 2 +- netnext/net/batman-adv/bat_v_elp.c | 2 +- netnext/net/batman-adv/bat_v_elp.h | 2 +- netnext/net/batman-adv/bat_v_ogm.c | 2 +- netnext/net/batman-adv/bat_v_ogm.h | 2 +- netnext/net/batman-adv/bitarray.c | 2 +- netnext/net/batman-adv/bitarray.h | 2 +- netnext/net/batman-adv/bridge_loop_avoidance.c | 2 +- netnext/net/batman-adv/bridge_loop_avoidance.h | 2 +- netnext/net/batman-adv/debugfs.c | 2 +- netnext/net/batman-adv/debugfs.h | 2 +- netnext/net/batman-adv/distributed-arp-table.c | 2 +- netnext/net/batman-adv/distributed-arp-table.h | 2 +- netnext/net/batman-adv/fragmentation.c | 2 +- netnext/net/batman-adv/fragmentation.h | 2 +- netnext/net/batman-adv/gateway_client.c | 2 +- netnext/net/batman-adv/gateway_client.h | 2 +- netnext/net/batman-adv/gateway_common.c | 2 +- netnext/net/batman-adv/gateway_common.h | 2 +- netnext/net/batman-adv/hard-interface.c | 2 +- netnext/net/batman-adv/hard-interface.h | 2 +- netnext/net/batman-adv/hash.c | 2 +- netnext/net/batman-adv/hash.h | 2 +- netnext/net/batman-adv/icmp_socket.c | 2 +- netnext/net/batman-adv/icmp_socket.h | 2 +- netnext/net/batman-adv/log.c | 2 +- netnext/net/batman-adv/log.h | 2 +- netnext/net/batman-adv/main.c | 2 +- netnext/net/batman-adv/main.h | 2 +- netnext/net/batman-adv/multicast.c | 2 +- netnext/net/batman-adv/multicast.h | 2 +- netnext/net/batman-adv/netlink.c | 2 +- netnext/net/batman-adv/netlink.h | 2 +- netnext/net/batman-adv/network-coding.c | 2 +- netnext/net/batman-adv/network-coding.h | 2 +- netnext/net/batman-adv/originator.c | 2 +- netnext/net/batman-adv/originator.h | 2 +- netnext/net/batman-adv/routing.c | 2 +- netnext/net/batman-adv/routing.h | 2 +- netnext/net/batman-adv/send.c | 2 +- netnext/net/batman-adv/send.h | 2 +- netnext/net/batman-adv/soft-interface.c | 2 +- netnext/net/batman-adv/soft-interface.h | 2 +- netnext/net/batman-adv/sysfs.c | 2 +- netnext/net/batman-adv/sysfs.h | 2 +- netnext/net/batman-adv/tp_meter.c | 2 +- netnext/net/batman-adv/tp_meter.h | 2 +- netnext/net/batman-adv/translation-table.c | 2 +- netnext/net/batman-adv/translation-table.h | 2 +- netnext/net/batman-adv/tvlv.c | 2 +- netnext/net/batman-adv/tvlv.h | 2 +- netnext/net/batman-adv/types.h | 2 +- 60 files changed, 60 insertions(+), 60 deletions(-) Statistics ========== maint ----- Failed tests: 0 Started build tests: 74 Tested Linux versions: 31 Tested configs: 54 master ------ Failed tests: 3 Started build tests: 68 Tested Linux versions: 29 Tested configs: 55

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linux-merge January 2018