commits June 2024

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[linux-merge]linux integration; annotated tag, v6.10-rc3, created. v6.10-rc3
by postmaster＠open-mesh.org 10 Jun '24

10 Jun '24

The annotated tag, v6.10-rc3 has been created at c17c3ec8582ec50a5af41b359d7b281e56593201 (tag) tagging 83a7eefedc9b56fe7bfeff13b6c7356688ffa670 (commit) replaces v6.10-rc2 tagged by Linus Torvalds on Sun Jun 9 14:19:43 2024 -0700 - Shortlog ------------------------------------------------------------ Linux 6.10-rc3 -----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmZmHG8eHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGevkH/3YuG9YSP1eo93Da eQAiwoOtxHsUWh9+2HQYrK5J1s7mCsf9+X2DtKZ3WJ4ZrtiYSvKPNwfG625JMgLb aLKZFtu2fbijGuRyGM/9o6eZ7ZspZbVTcoCo4RAW1uTzsF8mpIFCp2gpGE7SiTfh sdXkk3EX6DGrD0oZCu9A1uBBJ8MDB3tCQywnE7ny/X22pze6xCy7CZQWhk4EjOII zZt8Lukhs1AjJrS9X0DXcFayQB7WB75mx7XvaiqepcXPGb0fUI2TZW5oTlGk9uXD 59KfjWe3Fn4Xp0Z83iLByjVuB+ZceZBD/1B24EqieQLVero3PLdh6B4XHKGKfDU+ C16bWqs= =4UyN -----END PGP SIGNATURE----- ----------------------------------------------------------------------- -- linux integration

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[batman-adv] main,main: batman-adv: Ignore newest temporary files (08e8aefb)
by postmaster＠open-mesh.org 08 Jun '24

08 Jun '24

Repository : ssh://git@diktynna/batman-adv On branches: main,main >--------------------------------------------------------------- commit 08e8aefb8f7a9270e39b5d98cdd8857f803c357c Author: Sven Eckelmann <sven(a)narfation.org> Date: Sat Jun 8 20:44:58 2024 +0200 batman-adv: Ignore newest temporary files Signed-off-by: Sven Eckelmann <sven(a)narfation.org> >--------------------------------------------------------------- 08e8aefb8f7a9270e39b5d98cdd8857f803c357c .gitignore | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/.gitignore b/.gitignore index 4df7f60a..29758234 100644 --- a/.gitignore +++ b/.gitignore @@ -8,7 +8,11 @@ /net/batman-adv/batman-adv.ko /net/batman-adv/.batman-adv.ko.cmd /net/batman-adv/batman-adv.mod.c +/net/batman-adv/batman-adv.mod /net/batman-adv/modules.order /net/batman-adv/*.o -/net/batman-adv/.*.o.cmd +/net/batman-adv/.*.cmd +/net/batman-adv/.*.mod.* +/.Module.symvers.cmd +/.modules.order.cmd /.tmp_versions

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[batman-adv] main,main: batman-adv: Remove second parameter of __assign_str() (77cf0f97)
by postmaster＠open-mesh.org 08 Jun '24

08 Jun '24

Repository : ssh://git@diktynna/batman-adv On branches: main,main >--------------------------------------------------------------- commit 77cf0f97275923189cc5cf6d5cc8ef148186fcc4 Author: Steven Rostedt (Google) <rostedt(a)goodmis.org> Date: Thu May 16 13:34:54 2024 -0400 batman-adv: Remove second parameter of __assign_str() With the rework of how the __string() handles dynamic strings where it saves off the source string in field in the helper structure[1], the assignment of that value to the trace event field is stored in the helper value and does not need to be passed in again. This means that with: __string(field, mystring) Which use to be assigned with __assign_str(field, mystring), no longer needs the second parameter and it is unused. With this, __assign_str() will now only get a single parameter. There's over 700 users of __assign_str() and because coccinelle does not handle the TRACE_EVENT() macro I ended up using the following sed script: git grep -l __assign_str | while read a ; do sed -e 's/$__assign_str([^,]*[^ ,]$ *,[^;]*/\1)/' $a > /tmp/test-file; mv /tmp/test-file $a; done I then searched for __assign_str() that did not end with ';' as those were multi line assignments that the sed script above would fail to catch. Note, the same updates will need to be done for: __assign_str_len() __assign_rel_str() __assign_rel_str_len() I tested this with both an allmodconfig and an allyesconfig (build only for both). [1] https://lore.kernel.org/linux-trace-kernel/20240222211442.634192653@goodmis… Link: https://lore.kernel.org/linux-trace-kernel/20240516133454.681ba6a0@rorschac… Cc: Masami Hiramatsu <mhiramat(a)kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Julia Lawall <Julia.Lawall(a)inria.fr> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Acked-by: Jani Nikula <jani.nikula(a)intel.com> Acked-by: Christian König <christian.koenig(a)amd.com> for the amdgpu parts. Acked-by: Thomas Hellström <thomas.hellstrom(a)linux.intel.com> #for Acked-by: Rafael J. Wysocki <rafael(a)kernel.org> # for thermal Acked-by: Takashi Iwai <tiwai(a)suse.de> Acked-by: Darrick J. Wong <djwong(a)kernel.org> # xfs Tested-by: Guenter Roeck <linux(a)roeck-us.net> Signed-off-by: Sven Eckelmann <sven(a)narfation.org> >--------------------------------------------------------------- 77cf0f97275923189cc5cf6d5cc8ef148186fcc4 net/batman-adv/trace.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/batman-adv/trace.h b/net/batman-adv/trace.h index 5dd52bc5..2fa3457c 100644 --- a/net/batman-adv/trace.h +++ b/net/batman-adv/trace.h @@ -40,8 +40,13 @@ TRACE_EVENT(batadv_dbg, ), TP_fast_assign( +#if LINUX_VERSION_IS_GEQ(6, 10, 0) // UGLY_HACK_NEW + __assign_str(device); + __assign_str(driver); +#else // UGLY_HACK_OLD __assign_str(device, bat_priv->soft_iface->name); __assign_str(driver, KBUILD_MODNAME); +#endif // UGLY_HACK_STOP __assign_vstr(msg, vaf->fmt, vaf->va); ),

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[linux-merge]linux integration; branch, batadv/net-next, updated. v6.10-rc1-2-g3eec41bf8a77f
by postmaster＠open-mesh.org 07 Jun '24

07 Jun '24

The following commit has been merged in the batadv/net-next branch: commit 3eec41bf8a77faaa2c9c73bade6aef5478efa4dc Author: Erick Archer <erick.archer(a)outlook.com> Date: Fri Jun 7 18:19:12 2024 +0200 batman-adv: Add flex array to struct batadv_tvlv_tt_data The "struct batadv_tvlv_tt_data" uses a dynamically sized set of trailing elements. Specifically, it uses an array of structures of type "batadv_tvlv_tt_vlan_data". So, use the preferred way in the kernel declaring a flexible array [1]. At the same time, prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). In this case, it is important to note that the attribute used is specifically __counted_by_be since variable "num_vlan" is of type __be16. The following change to the "batadv_tt_tvlv_ogm_handler_v1" function: - tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(tt_data + 1); - tt_change = (struct batadv_tvlv_tt_change *)(tt_vlan + num_vlan); + tt_change = (struct batadv_tvlv_tt_change *)((void *)tt_data + + flex_size); is intended to prevent the compiler from generating an "out-of-bounds" notification due to the __counted_by attribute. The compiler can do a pointer calculation using the vlan_data flexible array memory, or in other words, this may be calculated as an array offset, since it is the same as: &tt_data->vlan_data[num_vlan] Therefore, we go past the end of the array. In other "multiple trailing flexible array" situations, this has been solved by addressing from the base pointer, since the compiler either knows the full allocation size or it knows nothing about it (this case, since it came from a "void *" function argument). The order in which the structure batadv_tvlv_tt_data and the structure batadv_tvlv_tt_vlan_data are defined must be swap to avoid an incomplete type error. Also, avoid the open-coded arithmetic in memory allocator functions [2] using the "struct_size" macro and use the "flex_array_size" helper to clarify some calculations, when possible. Moreover, the new structure member also allow us to avoid the open-coded arithmetic on pointers in some situations. Take advantage of this. This code was detected with the help of Coccinelle, and audited and modified manually. Link: https://www.kernel.org/doc/html/next/process/deprecated.html#zero-length-an… [1] Link: https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-ari… [2] Reviewed-by: Kees Cook <keescook(a)chromium.org> Signed-off-by: Erick Archer <erick.archer(a)outlook.com> Signed-off-by: Sven Eckelmann <sven(a)narfation.org> Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de> diff --git a/include/uapi/linux/batadv_packet.h b/include/uapi/linux/batadv_packet.h index 6e25753015dfa..439132a819eac 100644 --- a/include/uapi/linux/batadv_packet.h +++ b/include/uapi/linux/batadv_packet.h @@ -9,6 +9,7 @@ #include <asm/byteorder.h> #include <linux/if_ether.h> +#include <linux/stddef.h> #include <linux/types.h> /** @@ -592,19 +593,6 @@ struct batadv_tvlv_gateway_data { __be32 bandwidth_up; }; -/** - * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container - * @flags: translation table flags (see batadv_tt_data_flags) - * @ttvn: translation table version number - * @num_vlan: number of announced VLANs. In the TVLV this struct is followed by - * one batadv_tvlv_tt_vlan_data object per announced vlan - */ -struct batadv_tvlv_tt_data { - __u8 flags; - __u8 ttvn; - __be16 num_vlan; -}; - /** * struct batadv_tvlv_tt_vlan_data - vlan specific tt data propagated through * the tt tvlv container @@ -618,6 +606,21 @@ struct batadv_tvlv_tt_vlan_data { __u16 reserved; }; +/** + * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container + * @flags: translation table flags (see batadv_tt_data_flags) + * @ttvn: translation table version number + * @num_vlan: number of announced VLANs. In the TVLV this struct is followed by + * one batadv_tvlv_tt_vlan_data object per announced vlan + * @vlan_data: array of batadv_tvlv_tt_vlan_data objects + */ +struct batadv_tvlv_tt_data { + __u8 flags; + __u8 ttvn; + __be16 num_vlan; + struct batadv_tvlv_tt_vlan_data vlan_data[] __counted_by_be(num_vlan); +}; + /** * struct batadv_tvlv_tt_change - translation table diff data * @flags: status indicators concerning the non-mesh client (see diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index b21ff3c36b07d..b44c382226a11 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -28,6 +28,7 @@ #include <linux/net.h> #include <linux/netdevice.h> #include <linux/netlink.h> +#include <linux/overflow.h> #include <linux/rculist.h> #include <linux/rcupdate.h> #include <linux/skbuff.h> @@ -815,8 +816,7 @@ batadv_tt_prepare_tvlv_global_data(struct batadv_orig_node *orig_node, num_entries += atomic_read(&vlan->tt.num_entries); } - change_offset = sizeof(**tt_data); - change_offset += num_vlan * sizeof(*tt_vlan); + change_offset = struct_size(*tt_data, vlan_data, num_vlan); /* if tt_len is negative, allocate the space needed by the full table */ if (*tt_len < 0) @@ -835,7 +835,7 @@ batadv_tt_prepare_tvlv_global_data(struct batadv_orig_node *orig_node, (*tt_data)->ttvn = atomic_read(&orig_node->last_ttvn); (*tt_data)->num_vlan = htons(num_vlan); - tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(*tt_data + 1); + tt_vlan = (*tt_data)->vlan_data; hlist_for_each_entry(vlan, &orig_node->vlan_list, list) { tt_vlan->vid = htons(vlan->vid); tt_vlan->crc = htonl(vlan->tt.crc); @@ -895,8 +895,7 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv, total_entries += vlan_entries; } - change_offset = sizeof(**tt_data); - change_offset += num_vlan * sizeof(*tt_vlan); + change_offset = struct_size(*tt_data, vlan_data, num_vlan); /* if tt_len is negative, allocate the space needed by the full table */ if (*tt_len < 0) @@ -915,7 +914,7 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv, (*tt_data)->ttvn = atomic_read(&bat_priv->tt.vn); (*tt_data)->num_vlan = htons(num_vlan); - tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(*tt_data + 1); + tt_vlan = (*tt_data)->vlan_data; hlist_for_each_entry(vlan, &bat_priv->softif_vlan_list, list) { vlan_entries = atomic_read(&vlan->tt.num_entries); if (vlan_entries < 1) @@ -2875,7 +2874,6 @@ static bool batadv_send_tt_request(struct batadv_priv *bat_priv, { struct batadv_tvlv_tt_data *tvlv_tt_data = NULL; struct batadv_tt_req_node *tt_req_node = NULL; - struct batadv_tvlv_tt_vlan_data *tt_vlan_req; struct batadv_hard_iface *primary_if; bool ret = false; int i, size; @@ -2891,7 +2889,7 @@ static bool batadv_send_tt_request(struct batadv_priv *bat_priv, if (!tt_req_node) goto out; - size = sizeof(*tvlv_tt_data) + sizeof(*tt_vlan_req) * num_vlan; + size = struct_size(tvlv_tt_data, vlan_data, num_vlan); tvlv_tt_data = kzalloc(size, GFP_ATOMIC); if (!tvlv_tt_data) goto out; @@ -2903,12 +2901,10 @@ static bool batadv_send_tt_request(struct batadv_priv *bat_priv, /* send all the CRCs within the request. This is needed by intermediate * nodes to ensure they have the correct table before replying */ - tt_vlan_req = (struct batadv_tvlv_tt_vlan_data *)(tvlv_tt_data + 1); for (i = 0; i < num_vlan; i++) { - tt_vlan_req->vid = tt_vlan->vid; - tt_vlan_req->crc = tt_vlan->crc; + tvlv_tt_data->vlan_data[i].vid = tt_vlan->vid; + tvlv_tt_data->vlan_data[i].crc = tt_vlan->crc; - tt_vlan_req++; tt_vlan++; } @@ -2960,7 +2956,6 @@ static bool batadv_send_other_tt_response(struct batadv_priv *bat_priv, struct batadv_orig_node *res_dst_orig_node = NULL; struct batadv_tvlv_tt_change *tt_change; struct batadv_tvlv_tt_data *tvlv_tt_data = NULL; - struct batadv_tvlv_tt_vlan_data *tt_vlan; bool ret = false, full_table; u8 orig_ttvn, req_ttvn; u16 tvlv_len; @@ -2983,10 +2978,9 @@ static bool batadv_send_other_tt_response(struct batadv_priv *bat_priv, orig_ttvn = (u8)atomic_read(&req_dst_orig_node->last_ttvn); req_ttvn = tt_data->ttvn; - tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(tt_data + 1); /* this node doesn't have the requested data */ if (orig_ttvn != req_ttvn || - !batadv_tt_global_check_crc(req_dst_orig_node, tt_vlan, + !batadv_tt_global_check_crc(req_dst_orig_node, tt_data->vlan_data, ntohs(tt_data->num_vlan))) goto out; @@ -3329,7 +3323,6 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv, struct batadv_orig_node *orig_node = NULL; struct batadv_tvlv_tt_change *tt_change; u8 *tvlv_ptr = (u8 *)tt_data; - u16 change_offset; batadv_dbg(BATADV_DBG_TT, bat_priv, "Received TT_RESPONSE from %pM for ttvn %d t_size: %d [%c]\n", @@ -3342,10 +3335,7 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv, spin_lock_bh(&orig_node->tt_lock); - change_offset = sizeof(struct batadv_tvlv_tt_vlan_data); - change_offset *= ntohs(tt_data->num_vlan); - change_offset += sizeof(*tt_data); - tvlv_ptr += change_offset; + tvlv_ptr += struct_size(tt_data, vlan_data, ntohs(tt_data->num_vlan)); tt_change = (struct batadv_tvlv_tt_change *)tvlv_ptr; if (tt_data->flags & BATADV_TT_FULL_TABLE) { @@ -3944,10 +3934,10 @@ static void batadv_tt_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv, u8 flags, void *tvlv_value, u16 tvlv_value_len) { - struct batadv_tvlv_tt_vlan_data *tt_vlan; struct batadv_tvlv_tt_change *tt_change; struct batadv_tvlv_tt_data *tt_data; u16 num_entries, num_vlan; + size_t flex_size; if (tvlv_value_len < sizeof(*tt_data)) return; @@ -3957,17 +3947,18 @@ static void batadv_tt_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv, num_vlan = ntohs(tt_data->num_vlan); - if (tvlv_value_len < sizeof(*tt_vlan) * num_vlan) + flex_size = flex_array_size(tt_data, vlan_data, num_vlan); + if (tvlv_value_len < flex_size) return; - tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(tt_data + 1); - tt_change = (struct batadv_tvlv_tt_change *)(tt_vlan + num_vlan); - tvlv_value_len -= sizeof(*tt_vlan) * num_vlan; + tt_change = (struct batadv_tvlv_tt_change *)((void *)tt_data + + flex_size); + tvlv_value_len -= flex_size; num_entries = batadv_tt_entries(tvlv_value_len); - batadv_tt_update_orig(bat_priv, orig, tt_vlan, num_vlan, tt_change, - num_entries, tt_data->ttvn); + batadv_tt_update_orig(bat_priv, orig, tt_data->vlan_data, num_vlan, + tt_change, num_entries, tt_data->ttvn); } /** @@ -3998,8 +3989,8 @@ static int batadv_tt_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv, tt_data = tvlv_value; tvlv_value_len -= sizeof(*tt_data); - tt_vlan_len = sizeof(struct batadv_tvlv_tt_vlan_data); - tt_vlan_len *= ntohs(tt_data->num_vlan); + tt_vlan_len = flex_array_size(tt_data, vlan_data, + ntohs(tt_data->num_vlan)); if (tvlv_value_len < tt_vlan_len) return NET_RX_SUCCESS; -- linux integration

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[linux-merge]linux integration; annotated tag, v6.10-rc2, created. v6.10-rc2
by postmaster＠open-mesh.org 03 Jun '24

03 Jun '24

The annotated tag, v6.10-rc2 has been created at ac1064c236193fe48bded6f718ad47203870743b (tag) tagging c3f38fa61af77b49866b006939479069cd451173 (commit) replaces v6.10-rc1 tagged by Linus Torvalds on Sun Jun 2 15:44:56 2024 -0700 - Shortlog ------------------------------------------------------------ Linux 6.10-rc2 -----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmZc9egeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGoLsH/0xo1TNZwNRE9Qux gFbJDDhxMtvWnJCSqUuhpypd7SoVVEVKiXW942gWTl97PlCEH0ov3p+0UbxnmG13 kKJT1C/gct95L03OAfGquIjBSWh4/55o6Vz1zYTGvTFpWZo7G3ZvCDY8o9kN5/L3 mnpC+GfzZ9ckg+2TfwlbGBQUtILHV3IipCbfDFPSrT8mS0IT67uvBlND3nI++woj J1znGqg1PQ6yFnFCfj4RYCiyv/jEAT0ZTyokO4rH+iQVufc3y02mokhMuqmSoE6T 5bbHToLZIaa/QjRamN/+ltwyrhv8WlX4rJOkMibJY6w8gpukt/k6gL2Pguk4y2pf 0FPbbC0= =0AGs -----END PGP SIGNATURE----- ----------------------------------------------------------------------- -- linux integration

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[linux-merge]linux integration; branch, batadv/net, updated. v6.10-rc1-1-g537a350d14321
by postmaster＠open-mesh.org 03 Jun '24

03 Jun '24

The following commit has been merged in the batadv/net branch: commit 537a350d14321c8cca5efbf0a33a404fec3a9f9e Author: Sven Eckelmann <sven(a)narfation.org> Date: Sat May 4 21:57:30 2024 +0200 batman-adv: Don't accept TT entries for out-of-spec VIDs The internal handling of VLAN IDs in batman-adv is only specified for following encodings: * VLAN is used - bit 15 is 1 - bit 11 - bit 0 is the VLAN ID (0-4095) - remaining bits are 0 * No VLAN is used - bit 15 is 0 - remaining bits are 0 batman-adv was only preparing new translation table entries (based on its soft interface information) using this encoding format. But the receive path was never checking if entries in the roam or TT TVLVs were also following this encoding. It was therefore possible to create more than the expected maximum of 4096 + 1 entries in the originator VLAN list. Simply by setting the "remaining bits" to "random" values in corresponding TVLV. Cc: stable(a)vger.kernel.org Fixes: 7ea7b4a14275 ("batman-adv: make the TT CRC logic VLAN specific") Reported-by: Linus Lüssing <linus.luessing(a)c0d3.blue> Signed-off-by: Sven Eckelmann <sven(a)narfation.org> Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de> diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c index ac74f6ead62d5..8f6dd2c6ee41d 100644 --- a/net/batman-adv/originator.c +++ b/net/batman-adv/originator.c @@ -12,6 +12,7 @@ #include <linux/errno.h> #include <linux/etherdevice.h> #include <linux/gfp.h> +#include <linux/if_vlan.h> #include <linux/jiffies.h> #include <linux/kref.h> #include <linux/list.h> @@ -131,6 +132,29 @@ batadv_orig_node_vlan_get(struct batadv_orig_node *orig_node, return vlan; } +/** + * batadv_vlan_id_valid() - check if vlan id is in valid batman-adv encoding + * @vid: the VLAN identifier + * + * Return: true when either no vlan is set or if VLAN is in correct range, + * false otherwise + */ +static bool batadv_vlan_id_valid(unsigned short vid) +{ + unsigned short non_vlan = vid & ~(BATADV_VLAN_HAS_TAG | VLAN_VID_MASK); + + if (vid == 0) + return true; + + if (!(vid & BATADV_VLAN_HAS_TAG)) + return false; + + if (non_vlan) + return false; + + return true; +} + /** * batadv_orig_node_vlan_new() - search and possibly create an orig_node_vlan * object @@ -149,6 +173,9 @@ batadv_orig_node_vlan_new(struct batadv_orig_node *orig_node, { struct batadv_orig_node_vlan *vlan; + if (!batadv_vlan_id_valid(vid)) + return NULL; + spin_lock_bh(&orig_node->vlan_list_lock); /* first look if an object for this vid already exists */ -- linux integration

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[linux-merge]linux integration; branch, batadv/net-next, updated. v6.10-rc1-2-g5393dea1d195e
by postmaster＠open-mesh.org 03 Jun '24

03 Jun '24

The following commit has been merged in the batadv/net-next branch: commit dffc1eefd640e82fdc6b15b783561889a908afee Author: Simon Wunderlich <sw(a)simonwunderlich.de> Date: Mon Jun 3 10:16:14 2024 +0200 batman-adv: Start new development cycle This version will contain all the (major or even only minor) changes for Linux 6.11. The version number isn't a semantic version number with major and minor information. It is just encoding the year of the expected publishing as Linux -rc1 and the number of published versions this year (starting at 0). Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de> diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h index 3d4c36ae2e1ad..97ea71a052f8c 100644 --- a/net/batman-adv/main.h +++ b/net/batman-adv/main.h @@ -13,7 +13,7 @@ #define BATADV_DRIVER_DEVICE "batman-adv" #ifndef BATADV_SOURCE_VERSION -#define BATADV_SOURCE_VERSION "2024.2" +#define BATADV_SOURCE_VERSION "2024.3" #endif /* B.A.T.M.A.N. parameters */ -- linux integration

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[linux-merge]linux integration; branch, batadv/net-next, updated. v6.10-rc1-2-g5393dea1d195e
by postmaster＠open-mesh.org 03 Jun '24

03 Jun '24

The following commit has been merged in the batadv/net-next branch: commit 5393dea1d195ef7d5909b128e4907f322d973709 Author: Erick Archer <erick.archer(a)outlook.com> Date: Wed May 1 17:02:42 2024 +0200 batman-adv: Add flex array to struct batadv_tvlv_tt_data The "struct batadv_tvlv_tt_data" uses a dynamically sized set of trailing elements. Specifically, it uses an array of structures of type "batadv_tvlv_tt_vlan_data". So, use the preferred way in the kernel declaring a flexible array [1]. At the same time, prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). In this case, it is important to note that the attribute used is specifically __counted_by_be since variable "num_vlan" is of type __be16. The following change to the "batadv_tt_tvlv_ogm_handler_v1" function: - tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(tt_data + 1); - tt_change = (struct batadv_tvlv_tt_change *)(tt_vlan + num_vlan); + tt_change = (struct batadv_tvlv_tt_change *)((void *)tt_data + + flex_size); is intended to prevent the compiler from generating an "out-of-bounds" notification due to the __counted_by attribute. The compiler can do a pointer calculation using the vlan_data flexible array memory, or in other words, this may be calculated as an array offset, since it is the same as: &tt_data->vlan_data[num_vlan] Therefore, we go past the end of the array. In other "multiple trailing flexible array" situations, this has been solved by addressing from the base pointer, since the compiler either knows the full allocation size or it knows nothing about it (this case, since it came from a "void *" function argument). The order in which the structure batadv_tvlv_tt_data and the structure batadv_tvlv_tt_vlan_data are defined must be swap to avoid an incomplete type error. Also, avoid the open-coded arithmetic in memory allocator functions [2] using the "struct_size" macro and use the "flex_array_size" helper to clarify some calculations, when possible. Moreover, the new structure member also allow us to avoid the open-coded arithmetic on pointers in some situations. Take advantage of this. This code was detected with the help of Coccinelle, and audited and modified manually. Link: https://www.kernel.org/doc/html/next/process/deprecated.html#zero-length-an… [1] Link: https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-ari… [2] Signed-off-by: Erick Archer <erick.archer(a)outlook.com> Reviewed-by: Kees Cook <keescook(a)chromium.org> Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de> diff --git a/include/uapi/linux/batadv_packet.h b/include/uapi/linux/batadv_packet.h index 6e25753015dfa..dfbe305369950 100644 --- a/include/uapi/linux/batadv_packet.h +++ b/include/uapi/linux/batadv_packet.h @@ -592,19 +592,6 @@ struct batadv_tvlv_gateway_data { __be32 bandwidth_up; }; -/** - * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container - * @flags: translation table flags (see batadv_tt_data_flags) - * @ttvn: translation table version number - * @num_vlan: number of announced VLANs. In the TVLV this struct is followed by - * one batadv_tvlv_tt_vlan_data object per announced vlan - */ -struct batadv_tvlv_tt_data { - __u8 flags; - __u8 ttvn; - __be16 num_vlan; -}; - /** * struct batadv_tvlv_tt_vlan_data - vlan specific tt data propagated through * the tt tvlv container @@ -618,6 +605,21 @@ struct batadv_tvlv_tt_vlan_data { __u16 reserved; }; +/** + * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container + * @flags: translation table flags (see batadv_tt_data_flags) + * @ttvn: translation table version number + * @num_vlan: number of announced VLANs. In the TVLV this struct is followed by + * one batadv_tvlv_tt_vlan_data object per announced vlan + * @vlan_data: array of batadv_tvlv_tt_vlan_data objects + */ +struct batadv_tvlv_tt_data { + __u8 flags; + __u8 ttvn; + __be16 num_vlan; + struct batadv_tvlv_tt_vlan_data vlan_data[] __counted_by_be(num_vlan); +}; + /** * struct batadv_tvlv_tt_change - translation table diff data * @flags: status indicators concerning the non-mesh client (see diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index b21ff3c36b07d..b44c382226a11 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -28,6 +28,7 @@ #include <linux/net.h> #include <linux/netdevice.h> #include <linux/netlink.h> +#include <linux/overflow.h> #include <linux/rculist.h> #include <linux/rcupdate.h> #include <linux/skbuff.h> @@ -815,8 +816,7 @@ batadv_tt_prepare_tvlv_global_data(struct batadv_orig_node *orig_node, num_entries += atomic_read(&vlan->tt.num_entries); } - change_offset = sizeof(**tt_data); - change_offset += num_vlan * sizeof(*tt_vlan); + change_offset = struct_size(*tt_data, vlan_data, num_vlan); /* if tt_len is negative, allocate the space needed by the full table */ if (*tt_len < 0) @@ -835,7 +835,7 @@ batadv_tt_prepare_tvlv_global_data(struct batadv_orig_node *orig_node, (*tt_data)->ttvn = atomic_read(&orig_node->last_ttvn); (*tt_data)->num_vlan = htons(num_vlan); - tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(*tt_data + 1); + tt_vlan = (*tt_data)->vlan_data; hlist_for_each_entry(vlan, &orig_node->vlan_list, list) { tt_vlan->vid = htons(vlan->vid); tt_vlan->crc = htonl(vlan->tt.crc); @@ -895,8 +895,7 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv, total_entries += vlan_entries; } - change_offset = sizeof(**tt_data); - change_offset += num_vlan * sizeof(*tt_vlan); + change_offset = struct_size(*tt_data, vlan_data, num_vlan); /* if tt_len is negative, allocate the space needed by the full table */ if (*tt_len < 0) @@ -915,7 +914,7 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv, (*tt_data)->ttvn = atomic_read(&bat_priv->tt.vn); (*tt_data)->num_vlan = htons(num_vlan); - tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(*tt_data + 1); + tt_vlan = (*tt_data)->vlan_data; hlist_for_each_entry(vlan, &bat_priv->softif_vlan_list, list) { vlan_entries = atomic_read(&vlan->tt.num_entries); if (vlan_entries < 1) @@ -2875,7 +2874,6 @@ static bool batadv_send_tt_request(struct batadv_priv *bat_priv, { struct batadv_tvlv_tt_data *tvlv_tt_data = NULL; struct batadv_tt_req_node *tt_req_node = NULL; - struct batadv_tvlv_tt_vlan_data *tt_vlan_req; struct batadv_hard_iface *primary_if; bool ret = false; int i, size; @@ -2891,7 +2889,7 @@ static bool batadv_send_tt_request(struct batadv_priv *bat_priv, if (!tt_req_node) goto out; - size = sizeof(*tvlv_tt_data) + sizeof(*tt_vlan_req) * num_vlan; + size = struct_size(tvlv_tt_data, vlan_data, num_vlan); tvlv_tt_data = kzalloc(size, GFP_ATOMIC); if (!tvlv_tt_data) goto out; @@ -2903,12 +2901,10 @@ static bool batadv_send_tt_request(struct batadv_priv *bat_priv, /* send all the CRCs within the request. This is needed by intermediate * nodes to ensure they have the correct table before replying */ - tt_vlan_req = (struct batadv_tvlv_tt_vlan_data *)(tvlv_tt_data + 1); for (i = 0; i < num_vlan; i++) { - tt_vlan_req->vid = tt_vlan->vid; - tt_vlan_req->crc = tt_vlan->crc; + tvlv_tt_data->vlan_data[i].vid = tt_vlan->vid; + tvlv_tt_data->vlan_data[i].crc = tt_vlan->crc; - tt_vlan_req++; tt_vlan++; } @@ -2960,7 +2956,6 @@ static bool batadv_send_other_tt_response(struct batadv_priv *bat_priv, struct batadv_orig_node *res_dst_orig_node = NULL; struct batadv_tvlv_tt_change *tt_change; struct batadv_tvlv_tt_data *tvlv_tt_data = NULL; - struct batadv_tvlv_tt_vlan_data *tt_vlan; bool ret = false, full_table; u8 orig_ttvn, req_ttvn; u16 tvlv_len; @@ -2983,10 +2978,9 @@ static bool batadv_send_other_tt_response(struct batadv_priv *bat_priv, orig_ttvn = (u8)atomic_read(&req_dst_orig_node->last_ttvn); req_ttvn = tt_data->ttvn; - tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(tt_data + 1); /* this node doesn't have the requested data */ if (orig_ttvn != req_ttvn || - !batadv_tt_global_check_crc(req_dst_orig_node, tt_vlan, + !batadv_tt_global_check_crc(req_dst_orig_node, tt_data->vlan_data, ntohs(tt_data->num_vlan))) goto out; @@ -3329,7 +3323,6 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv, struct batadv_orig_node *orig_node = NULL; struct batadv_tvlv_tt_change *tt_change; u8 *tvlv_ptr = (u8 *)tt_data; - u16 change_offset; batadv_dbg(BATADV_DBG_TT, bat_priv, "Received TT_RESPONSE from %pM for ttvn %d t_size: %d [%c]\n", @@ -3342,10 +3335,7 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv, spin_lock_bh(&orig_node->tt_lock); - change_offset = sizeof(struct batadv_tvlv_tt_vlan_data); - change_offset *= ntohs(tt_data->num_vlan); - change_offset += sizeof(*tt_data); - tvlv_ptr += change_offset; + tvlv_ptr += struct_size(tt_data, vlan_data, ntohs(tt_data->num_vlan)); tt_change = (struct batadv_tvlv_tt_change *)tvlv_ptr; if (tt_data->flags & BATADV_TT_FULL_TABLE) { @@ -3944,10 +3934,10 @@ static void batadv_tt_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv, u8 flags, void *tvlv_value, u16 tvlv_value_len) { - struct batadv_tvlv_tt_vlan_data *tt_vlan; struct batadv_tvlv_tt_change *tt_change; struct batadv_tvlv_tt_data *tt_data; u16 num_entries, num_vlan; + size_t flex_size; if (tvlv_value_len < sizeof(*tt_data)) return; @@ -3957,17 +3947,18 @@ static void batadv_tt_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv, num_vlan = ntohs(tt_data->num_vlan); - if (tvlv_value_len < sizeof(*tt_vlan) * num_vlan) + flex_size = flex_array_size(tt_data, vlan_data, num_vlan); + if (tvlv_value_len < flex_size) return; - tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(tt_data + 1); - tt_change = (struct batadv_tvlv_tt_change *)(tt_vlan + num_vlan); - tvlv_value_len -= sizeof(*tt_vlan) * num_vlan; + tt_change = (struct batadv_tvlv_tt_change *)((void *)tt_data + + flex_size); + tvlv_value_len -= flex_size; num_entries = batadv_tt_entries(tvlv_value_len); - batadv_tt_update_orig(bat_priv, orig, tt_vlan, num_vlan, tt_change, - num_entries, tt_data->ttvn); + batadv_tt_update_orig(bat_priv, orig, tt_data->vlan_data, num_vlan, + tt_change, num_entries, tt_data->ttvn); } /** @@ -3998,8 +3989,8 @@ static int batadv_tt_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv, tt_data = tvlv_value; tvlv_value_len -= sizeof(*tt_data); - tt_vlan_len = sizeof(struct batadv_tvlv_tt_vlan_data); - tt_vlan_len *= ntohs(tt_data->num_vlan); + tt_vlan_len = flex_array_size(tt_data, vlan_data, + ntohs(tt_data->num_vlan)); if (tvlv_value_len < tt_vlan_len) return NET_RX_SUCCESS; -- linux integration

1 0

[linux-merge]linux integration; branch, batadv/net, updated. v6.10-rc1-1-g8dd48738e010e
by postmaster＠open-mesh.org 03 Jun '24

03 Jun '24

The following commit has been merged in the batadv/net branch: commit 1eb2cded45b35816085c1f962933c187d970f9dc Author: Eric Dumazet <edumazet(a)google.com> Date: Mon May 6 10:28:12 2024 +0000 net: annotate writes on dev->mtu from ndo_change_mtu() Simon reported that ndo_change_mtu() methods were never updated to use WRITE_ONCE(dev->mtu, new_mtu) as hinted in commit 501a90c94510 ("inet: protect against too small mtu values.") We read dev->mtu without holding RTNL in many places, with READ_ONCE() annotations. It is time to take care of ndo_change_mtu() methods to use corresponding WRITE_ONCE() Signed-off-by: Eric Dumazet <edumazet(a)google.com> Reported-by: Simon Horman <horms(a)kernel.org> Closes: https://lore.kernel.org/netdev/20240505144608.GB67882@kernel.org/ Reviewed-by: Jacob Keller <jacob.e.keller(a)intel.com> Reviewed-by: Sabrina Dubroca <sd(a)queasysnail.net> Reviewed-by: Simon Horman <horms(a)kernel.org> Acked-by: Shannon Nelson <shannon.nelson(a)amd.com> Link: https://lore.kernel.org/r/20240506102812.3025432-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 6f2a688fccbfb..32f6a28b02b1e 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -238,7 +238,7 @@ static int ipoib_change_mtu(struct net_device *dev, int new_mtu) ipoib_warn(priv, "mtu > %d will cause multicast packet drops.\n", priv->mcast_mtu); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } @@ -265,7 +265,7 @@ static int ipoib_change_mtu(struct net_device *dev, int new_mtu) if (carrier_status) netif_carrier_on(dev); } else { - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); } return ret; diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index b3a7d60c3a5ca..3b0c7758ea4f4 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4710,7 +4710,7 @@ static int bond_change_mtu(struct net_device *bond_dev, int new_mtu) } } - bond_dev->mtu = new_mtu; + WRITE_ONCE(bond_dev->mtu, new_mtu); return 0; diff --git a/drivers/net/can/dev/dev.c b/drivers/net/can/dev/dev.c index 3a3be5cdfc1f8..83e724e0ab871 100644 --- a/drivers/net/can/dev/dev.c +++ b/drivers/net/can/dev/dev.c @@ -338,7 +338,7 @@ int can_change_mtu(struct net_device *dev, int new_mtu) return -EINVAL; } - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } EXPORT_SYMBOL_GPL(can_change_mtu); diff --git a/drivers/net/can/vcan.c b/drivers/net/can/vcan.c index 285635c234432..f67e858071007 100644 --- a/drivers/net/can/vcan.c +++ b/drivers/net/can/vcan.c @@ -140,7 +140,7 @@ static int vcan_change_mtu(struct net_device *dev, int new_mtu) !can_is_canxl_dev_mtu(new_mtu)) return -EINVAL; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/can/vxcan.c b/drivers/net/can/vxcan.c index f7fabba707ea6..9e1b7d41005f8 100644 --- a/drivers/net/can/vxcan.c +++ b/drivers/net/can/vxcan.c @@ -135,7 +135,7 @@ static int vxcan_change_mtu(struct net_device *dev, int new_mtu) !can_is_canxl_dev_mtu(new_mtu)) return -EINVAL; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/agere/et131x.c b/drivers/net/ethernet/agere/et131x.c index 3d9220f9c9fe7..b325e0cef120f 100644 --- a/drivers/net/ethernet/agere/et131x.c +++ b/drivers/net/ethernet/agere/et131x.c @@ -3852,7 +3852,7 @@ static int et131x_change_mtu(struct net_device *netdev, int new_mtu) et131x_disable_txrx(netdev); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); et131x_adapter_memory_free(adapter); diff --git a/drivers/net/ethernet/alteon/acenic.c b/drivers/net/ethernet/alteon/acenic.c index eafef84fe3be5..3d8ac63132fb2 100644 --- a/drivers/net/ethernet/alteon/acenic.c +++ b/drivers/net/ethernet/alteon/acenic.c @@ -2539,7 +2539,7 @@ static int ace_change_mtu(struct net_device *dev, int new_mtu) struct ace_regs __iomem *regs = ap->regs; writel(new_mtu + ETH_HLEN + 4, &regs->IfMtu); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (new_mtu > ACE_STD_MTU) { if (!(ap->jumbo)) { diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c index 1c8763be0e4b3..3c112c18ae6ae 100644 --- a/drivers/net/ethernet/altera/altera_tse_main.c +++ b/drivers/net/ethernet/altera/altera_tse_main.c @@ -788,7 +788,7 @@ static int tse_change_mtu(struct net_device *dev, int new_mtu) return -EBUSY; } - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); netdev_update_features(dev); return 0; diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index be5acfa41ee0c..28eaedaf713d5 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -104,7 +104,7 @@ static int ena_change_mtu(struct net_device *dev, int new_mtu) if (!ret) { netif_dbg(adapter, drv, dev, "Set MTU to %d\n", new_mtu); update_rx_ring_mtu(adapter, new_mtu); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); } else { netif_err(adapter, drv, dev, "Failed to set MTU to %d\n", new_mtu); diff --git a/drivers/net/ethernet/amd/amd8111e.c b/drivers/net/ethernet/amd/amd8111e.c index c1b5e9a94308c..f64f96fa17cfe 100644 --- a/drivers/net/ethernet/amd/amd8111e.c +++ b/drivers/net/ethernet/amd/amd8111e.c @@ -1520,9 +1520,9 @@ static int amd8111e_change_mtu(struct net_device *dev, int new_mtu) if (!netif_running(dev)) { /* new_mtu will be used - * when device starts netxt time + * when device starts next time */ - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } @@ -1531,7 +1531,7 @@ static int amd8111e_change_mtu(struct net_device *dev, int new_mtu) /* stop the chip */ writel(RUN, lp->mmio + CMD0); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); err = amd8111e_restart(dev); spin_unlock_irq(&lp->lock); diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c index 6b73648b37793..c4a4e316683fa 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c @@ -2070,7 +2070,7 @@ static int xgbe_change_mtu(struct net_device *netdev, int mtu) return ret; pdata->rx_buf_size = ret; - netdev->mtu = mtu; + WRITE_ONCE(netdev->mtu, mtu); xgbe_restart_dev(pdata); diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c index 44900026d11b5..4af9d89d5f88b 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c @@ -1530,7 +1530,7 @@ static int xgene_change_mtu(struct net_device *ndev, int new_mtu) frame_size = (new_mtu > ETH_DATA_LEN) ? (new_mtu + 18) : 0x600; xgene_enet_close(ndev); - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); pdata->mac_ops->set_framesize(pdata, frame_size); xgene_enet_open(ndev); diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_main.c b/drivers/net/ethernet/aquantia/atlantic/aq_main.c index 0b2a52199914b..c1d1673c5749d 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_main.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_main.c @@ -146,7 +146,7 @@ static int aq_ndev_change_mtu(struct net_device *ndev, int new_mtu) if (err < 0) goto err_exit; - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); err_exit: return err; diff --git a/drivers/net/ethernet/atheros/ag71xx.c b/drivers/net/ethernet/atheros/ag71xx.c index 0f2f400b5bc49..a38be924cdaa0 100644 --- a/drivers/net/ethernet/atheros/ag71xx.c +++ b/drivers/net/ethernet/atheros/ag71xx.c @@ -1788,7 +1788,7 @@ static int ag71xx_change_mtu(struct net_device *ndev, int new_mtu) { struct ag71xx *ag = netdev_priv(ndev); - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); ag71xx_wr(ag, AG71XX_REG_MAC_MFL, ag71xx_max_frame_len(ndev->mtu)); diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c index 49bb9a8f00e64..3d28654e5df77 100644 --- a/drivers/net/ethernet/atheros/alx/main.c +++ b/drivers/net/ethernet/atheros/alx/main.c @@ -1176,7 +1176,7 @@ static int alx_change_mtu(struct net_device *netdev, int mtu) struct alx_priv *alx = netdev_priv(netdev); int max_frame = ALX_MAX_FRAME_LEN(mtu); - netdev->mtu = mtu; + WRITE_ONCE(netdev->mtu, mtu); alx->hw.mtu = mtu; alx->rxbuf_size = max(max_frame, ALX_DEF_RXBUF_SIZE); netdev_update_features(netdev); diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c index 46cdc32b4e317..c571614b1d501 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c @@ -561,7 +561,7 @@ static int atl1c_change_mtu(struct net_device *netdev, int new_mtu) if (netif_running(netdev)) { while (test_and_set_bit(__AT_RESETTING, &adapter->flags)) msleep(1); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); adapter->hw.max_frame_size = new_mtu; atl1c_set_rxbufsize(adapter, netdev); atl1c_down(adapter); diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c index 5f2a6fcba9670..9b778b34b67ef 100644 --- a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c +++ b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c @@ -428,7 +428,7 @@ static int atl1e_change_mtu(struct net_device *netdev, int new_mtu) if (netif_running(netdev)) { while (test_and_set_bit(__AT_RESETTING, &adapter->flags)) msleep(1); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); adapter->hw.max_frame_size = new_mtu; adapter->hw.rx_jumbo_th = (max_frame + 7) >> 3; atl1e_down(adapter); diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c index a9014d7932dbf..3afd3627ce485 100644 --- a/drivers/net/ethernet/atheros/atlx/atl1.c +++ b/drivers/net/ethernet/atheros/atlx/atl1.c @@ -2687,7 +2687,7 @@ static int atl1_change_mtu(struct net_device *netdev, int new_mtu) adapter->rx_buffer_len = (max_frame + 7) & ~7; adapter->hw.rx_jumbo_th = adapter->rx_buffer_len / 8; - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (netif_running(netdev)) { atl1_down(adapter); atl1_up(adapter); diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c index bcfc9488125b1..fa9a4919f25d4 100644 --- a/drivers/net/ethernet/atheros/atlx/atl2.c +++ b/drivers/net/ethernet/atheros/atlx/atl2.c @@ -905,7 +905,7 @@ static int atl2_change_mtu(struct net_device *netdev, int new_mtu) struct atl2_hw *hw = &adapter->hw; /* set MTU */ - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); hw->max_frame_size = new_mtu; ATL2_WRITE_REG(hw, REG_MTU, new_mtu + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN); diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c index 1be6d14030bcf..e5809ad5eb827 100644 --- a/drivers/net/ethernet/broadcom/b44.c +++ b/drivers/net/ethernet/broadcom/b44.c @@ -1042,13 +1042,13 @@ static int b44_change_mtu(struct net_device *dev, int new_mtu) /* We'll just catch it later when the * device is up'd. */ - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } spin_lock_irq(&bp->lock); b44_halt(bp); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); b44_init_rings(bp); b44_init_hw(bp, B44_FULL_RESET); spin_unlock_irq(&bp->lock); diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c index 3196c4dea0769..3c0e3b9828be9 100644 --- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c +++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c @@ -1652,7 +1652,7 @@ static int bcm_enet_change_mtu(struct net_device *dev, int new_mtu) priv->rx_frag_size = SKB_DATA_ALIGN(priv->rx_buf_offset + priv->rx_buf_size) + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c index b65b8592ad759..6ec773e61182d 100644 --- a/drivers/net/ethernet/broadcom/bnx2.c +++ b/drivers/net/ethernet/broadcom/bnx2.c @@ -7912,7 +7912,7 @@ bnx2_change_mtu(struct net_device *dev, int new_mtu) { struct bnx2 *bp = netdev_priv(dev); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return bnx2_change_ring_size(bp, bp->rx_ring_size, bp->tx_ring_size, false); } diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index c9b6acd8c892d..a8e07e51418fd 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -4902,7 +4902,7 @@ int bnx2x_change_mtu(struct net_device *dev, int new_mtu) * because the actual alloc size is * only updated as part of load */ - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (!bnx2x_mtu_allows_gro(new_mtu)) dev->features &= ~NETIF_F_GRO_HW; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 0d1ed6e5dfbd2..c437ca1c0fd39 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -14280,7 +14280,7 @@ static int bnxt_change_mtu(struct net_device *dev, int new_mtu) if (netif_running(dev)) bnxt_close_nic(bp, true, false); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); bnxt_set_ring_params(bp); if (netif_running(dev)) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index e6ff3c9bd7e50..1589a49b876c9 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -14295,7 +14295,7 @@ static void tg3_set_rx_mode(struct net_device *dev) static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp, int new_mtu) { - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (new_mtu > ETH_DATA_LEN) { if (tg3_flag(tp, 5780_CLASS)) { diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c index c32174484a967..fe121d36112d5 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.c +++ b/drivers/net/ethernet/brocade/bna/bnad.c @@ -3276,7 +3276,7 @@ bnad_change_mtu(struct net_device *netdev, int new_mtu) mutex_lock(&bnad->conf_mutex); mtu = netdev->mtu; - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); frame = BNAD_FRAME_SIZE(mtu); new_frame = BNAD_FRAME_SIZE(new_mtu); diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index 898debfd4db36..241ce9a2fa991 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -3022,7 +3022,7 @@ static int macb_change_mtu(struct net_device *dev, int new_mtu) if (netif_running(dev)) return -EBUSY; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c index 5e97f1e4e38e8..a71b320fd0308 100644 --- a/drivers/net/ethernet/calxeda/xgmac.c +++ b/drivers/net/ethernet/calxeda/xgmac.c @@ -1358,7 +1358,7 @@ static int xgmac_change_mtu(struct net_device *dev, int new_mtu) /* Bring interface down, change mtu and bring interface back up */ xgmac_stop(dev); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return xgmac_open(dev); } diff --git a/drivers/net/ethernet/cavium/liquidio/lio_core.c b/drivers/net/ethernet/cavium/liquidio/lio_core.c index f38d31bfab1bb..674c548318750 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_core.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_core.c @@ -1262,7 +1262,7 @@ int liquidio_change_mtu(struct net_device *netdev, int new_mtu) return -EINVAL; } - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); lio->mtu = new_mtu; WRITE_ONCE(sc->caller_is_done, true); diff --git a/drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c b/drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c index aa6c0dfb6f1ca..96c6ea12279f8 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c @@ -218,7 +218,7 @@ lio_vf_rep_change_mtu(struct net_device *ndev, int new_mtu) return -EIO; } - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c index 007d4b06819ef..744f2434f7fa5 100644 --- a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c +++ b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c @@ -649,7 +649,7 @@ static int octeon_mgmt_change_mtu(struct net_device *netdev, int new_mtu) struct octeon_mgmt *p = netdev_priv(netdev); int max_packet = new_mtu + ETH_HLEN + ETH_FCS_LEN; - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); /* HW lifts the limit if the frame is VLAN tagged * (+4 bytes per each tag, up to two tags) diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c index eff350e0bc2a8..aebb9fef3f6eb 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c @@ -1589,7 +1589,7 @@ static int nicvf_change_mtu(struct net_device *netdev, int new_mtu) return -EINVAL; } - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (!netif_running(netdev)) return 0; diff --git a/drivers/net/ethernet/chelsio/cxgb/cxgb2.c b/drivers/net/ethernet/chelsio/cxgb/cxgb2.c index d2286adf09fed..7d7d3e0098df2 100644 --- a/drivers/net/ethernet/chelsio/cxgb/cxgb2.c +++ b/drivers/net/ethernet/chelsio/cxgb/cxgb2.c @@ -844,7 +844,7 @@ static int t1_change_mtu(struct net_device *dev, int new_mtu) return -EOPNOTSUPP; if ((ret = mac->ops->set_mtu(mac, new_mtu))) return ret; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c index 2236f1d35f2b8..f92a3550e4800 100644 --- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c +++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c @@ -2559,7 +2559,7 @@ static int cxgb_change_mtu(struct net_device *dev, int new_mtu) if ((ret = t3_mac_set_mtu(&pi->mac, new_mtu))) return ret; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); init_port_mtus(adapter); if (adapter->params.rev == 0 && offload_running(adapter)) t3_load_mtus(adapter, adapter->params.mtus, diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 2eb33a727bba3..2418645c88237 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -3180,7 +3180,7 @@ static int cxgb_change_mtu(struct net_device *dev, int new_mtu) ret = t4_set_rxmode(pi->adapter, pi->adapter->mbox, pi->viid, pi->viid_mirror, new_mtu, -1, -1, -1, -1, true); if (!ret) - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return ret; } diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c index 9ba0864592e85..2fbe0f059a0bf 100644 --- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c @@ -1169,7 +1169,7 @@ static int cxgb4vf_change_mtu(struct net_device *dev, int new_mtu) ret = t4vf_set_rxmode(pi->adapter, pi->viid, new_mtu, -1, -1, -1, -1, true); if (!ret) - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return ret; } diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c index d266a87297a5e..f604119efc809 100644 --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -2027,7 +2027,7 @@ static int _enic_change_mtu(struct net_device *netdev, int new_mtu) return err; } - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (running) { err = enic_open(netdev); diff --git a/drivers/net/ethernet/cortina/gemini.c b/drivers/net/ethernet/cortina/gemini.c index 705c3eb19cd3f..2f98f644b9d7b 100644 --- a/drivers/net/ethernet/cortina/gemini.c +++ b/drivers/net/ethernet/cortina/gemini.c @@ -1978,7 +1978,7 @@ static int gmac_change_mtu(struct net_device *netdev, int new_mtu) gmac_disable_tx_rx(netdev); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); gmac_update_config0_reg(netdev, max_len << CONFIG0_MAXLEN_SHIFT, CONFIG0_MAXLEN_MASK); diff --git a/drivers/net/ethernet/dlink/sundance.c b/drivers/net/ethernet/dlink/sundance.c index aaf0eda962922..8af5ecec7d614 100644 --- a/drivers/net/ethernet/dlink/sundance.c +++ b/drivers/net/ethernet/dlink/sundance.c @@ -708,7 +708,7 @@ static int change_mtu(struct net_device *dev, int new_mtu) { if (netif_running(dev)) return -EBUSY; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c index 003bc9a45c659..1047c805054ea 100644 --- a/drivers/net/ethernet/faraday/ftmac100.c +++ b/drivers/net/ethernet/faraday/ftmac100.c @@ -1092,7 +1092,7 @@ static int ftmac100_change_mtu(struct net_device *netdev, int mtu) } iowrite32(maccr, priv->base + FTMAC100_OFFSET_MACCR); - netdev->mtu = mtu; + WRITE_ONCE(netdev->mtu, mtu); return 0; } diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c index dcbc598b11c6c..baa0b3c2ce6ff 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c @@ -2995,7 +2995,7 @@ static int dpaa_change_mtu(struct net_device *net_dev, int new_mtu) if (priv->xdp_prog && !xdp_validate_mtu(priv, new_mtu)) return -EINVAL; - net_dev->mtu = new_mtu; + WRITE_ONCE(net_dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c index 40e8818295951..6866807973daa 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -2698,7 +2698,7 @@ static int dpaa2_eth_change_mtu(struct net_device *dev, int new_mtu) return err; out: - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c index f3543a2df68d5..a71f848adc054 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c @@ -590,7 +590,7 @@ static int dpaa2_switch_port_change_mtu(struct net_device *netdev, int mtu) return err; } - netdev->mtu = mtu; + WRITE_ONCE(netdev->mtu, mtu); return 0; } diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index a811238c018de..2baef59f741dd 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -2026,7 +2026,7 @@ static int gfar_change_mtu(struct net_device *dev, int new_mtu) if (dev->flags & IFF_UP) stop_gfar(dev); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (dev->flags & IFF_UP) startup_gfar(dev); diff --git a/drivers/net/ethernet/fungible/funeth/funeth_main.c b/drivers/net/ethernet/fungible/funeth/funeth_main.c index df86770731ad5..ac86179a0a817 100644 --- a/drivers/net/ethernet/fungible/funeth/funeth_main.c +++ b/drivers/net/ethernet/fungible/funeth/funeth_main.c @@ -927,7 +927,7 @@ static int fun_change_mtu(struct net_device *netdev, int new_mtu) rc = fun_port_write_cmd(fp, FUN_ADMIN_PORT_KEY_MTU, new_mtu); if (!rc) - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); return rc; } diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index 8a713eed44658..fd32e15cadcb4 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -1777,7 +1777,7 @@ static int hns_nic_change_mtu(struct net_device *ndev, int new_mtu) } /* finally, set new mtu to netdevice */ - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); out: if (if_running) { diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 19668a8d22f76..dfdc0e032c078 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -2761,7 +2761,7 @@ static int hns3_nic_change_mtu(struct net_device *netdev, int new_mtu) netdev_err(netdev, "failed to change MTU in hardware %d\n", ret); else - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); return ret; } diff --git a/drivers/net/ethernet/huawei/hinic/hinic_main.c b/drivers/net/ethernet/huawei/hinic/hinic_main.c index 499c657d37a96..890f213da8d18 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_main.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c @@ -581,7 +581,7 @@ static int hinic_change_mtu(struct net_device *netdev, int new_mtu) if (err) netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n"); else - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); return err; } diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c index e6e47b1842ea7..a19d098f2e2bf 100644 --- a/drivers/net/ethernet/ibm/emac/core.c +++ b/drivers/net/ethernet/ibm/emac/core.c @@ -1098,7 +1098,7 @@ static int emac_resize_rx_ring(struct emac_instance *dev, int new_mtu) /* This is to prevent starting RX channel in emac_rx_enable() */ set_bit(MAL_COMMAC_RX_STOPPED, &dev->commac.flags); - dev->ndev->mtu = new_mtu; + WRITE_ONCE(dev->ndev->mtu, new_mtu); emac_full_tx_reset(dev); } @@ -1130,7 +1130,7 @@ static int emac_change_mtu(struct net_device *ndev, int new_mtu) } if (!ret) { - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); dev->rx_skb_size = emac_rx_skb_size(new_mtu); dev->rx_sync_size = emac_rx_sync_size(new_mtu); } diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c index b5aef0b29efea..4c9d9badd6986 100644 --- a/drivers/net/ethernet/ibm/ibmveth.c +++ b/drivers/net/ethernet/ibm/ibmveth.c @@ -1537,7 +1537,7 @@ static int ibmveth_change_mtu(struct net_device *dev, int new_mtu) adapter->rx_buff_pool[i].active = 1; if (new_mtu_oh <= adapter->rx_buff_pool[i].buff_size) { - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); vio_cmo_set_dev_desired(viodev, ibmveth_get_desired_dma (viodev)); diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index 5b43f9b194fc2..60fff9a6c53e3 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -3569,7 +3569,7 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) netdev_dbg(netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (netif_running(netdev)) e1000_up(adapter); diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index bef65ee4c549a..220d62fca55d1 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -6038,7 +6038,7 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) adapter->max_frame_size = max_frame; netdev_dbg(netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); pm_runtime_get_sync(netdev->dev.parent); diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 2cc7bec0557b3..143e37ae88efd 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -2961,7 +2961,7 @@ static int i40e_change_mtu(struct net_device *netdev, int new_mtu) netdev_dbg(netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (netif_running(netdev)) i40e_vsi_reinit_locked(vsi); set_bit(__I40E_CLIENT_SERVICE_REQUESTED, pf->state); diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index d4f4fd6a10016..d4699c4c535d4 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -4296,7 +4296,7 @@ static int iavf_change_mtu(struct net_device *netdev, int new_mtu) netdev_dbg(netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (netif_running(netdev)) { iavf_schedule_reset(adapter, IAVF_FLAG_RESET_NEEDED); diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 06549dae4cca6..125c53c518984 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -7770,7 +7770,7 @@ static int ice_change_mtu(struct net_device *netdev, int new_mtu) return -EBUSY; } - netdev->mtu = (unsigned int)new_mtu; + WRITE_ONCE(netdev->mtu, (unsigned int)new_mtu); err = ice_down_up(vsi); if (err) return err; diff --git a/drivers/net/ethernet/intel/idpf/idpf_lib.c b/drivers/net/ethernet/intel/idpf/idpf_lib.c index 5d3532c27d57f..52ceda6306a3d 100644 --- a/drivers/net/ethernet/intel/idpf/idpf_lib.c +++ b/drivers/net/ethernet/intel/idpf/idpf_lib.c @@ -2234,7 +2234,7 @@ static int idpf_change_mtu(struct net_device *netdev, int new_mtu) idpf_vport_ctrl_lock(netdev); vport = idpf_netdev_to_vport(netdev); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); err = idpf_initiate_soft_reset(vport, IDPF_SR_MTU_CHANGE); diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 74a998fcaa6f3..7d9389040e404 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -6641,7 +6641,7 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu) netdev_dbg(netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (netif_running(netdev)) igb_up(adapter); diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c index 40ccd24ffc539..7661edd7d0f2c 100644 --- a/drivers/net/ethernet/intel/igbvf/netdev.c +++ b/drivers/net/ethernet/intel/igbvf/netdev.c @@ -2434,7 +2434,7 @@ static int igbvf_change_mtu(struct net_device *netdev, int new_mtu) netdev_dbg(netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (netif_running(netdev)) igbvf_up(adapter); diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index 34c257a51ed1f..c30f0f5726007 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -5275,7 +5275,7 @@ static int igc_change_mtu(struct net_device *netdev, int new_mtu) igc_down(adapter); netdev_dbg(netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (netif_running(netdev)) igc_up(adapter); diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 43e7e75ae18c0..094653e81b97a 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -6847,7 +6847,7 @@ static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) netdev->mtu, new_mtu); /* must set new MTU before calling down or up */ - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (netif_running(netdev)) ixgbe_reinit_locked(adapter); diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index 3161a13079fe6..b938dc06045d0 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -4292,7 +4292,7 @@ static int ixgbevf_change_mtu(struct net_device *netdev, int new_mtu) netdev->mtu, new_mtu); /* must set new MTU before calling down or up */ - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (netif_running(netdev)) ixgbevf_reinit_locked(adapter); diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c index 1732ec3c3dbdc..b06e245629739 100644 --- a/drivers/net/ethernet/jme.c +++ b/drivers/net/ethernet/jme.c @@ -2301,7 +2301,7 @@ jme_change_mtu(struct net_device *netdev, int new_mtu) { struct jme_adapter *jme = netdev_priv(netdev); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); netdev_update_features(netdev); jme_restart_rx_engine(jme); diff --git a/drivers/net/ethernet/lantiq_etop.c b/drivers/net/ethernet/lantiq_etop.c index 1d5b7bb6380f9..5352fee62d2b8 100644 --- a/drivers/net/ethernet/lantiq_etop.c +++ b/drivers/net/ethernet/lantiq_etop.c @@ -519,7 +519,7 @@ ltq_etop_change_mtu(struct net_device *dev, int new_mtu) struct ltq_etop_priv *priv = netdev_priv(dev); unsigned long flags; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); spin_lock_irqsave(&priv->lock, flags); ltq_etop_w32((ETOP_PLEN_UNDER << 16) | new_mtu, LTQ_ETOP_IGPLEN); diff --git a/drivers/net/ethernet/lantiq_xrx200.c b/drivers/net/ethernet/lantiq_xrx200.c index 8bd4def3622e1..07904a528f215 100644 --- a/drivers/net/ethernet/lantiq_xrx200.c +++ b/drivers/net/ethernet/lantiq_xrx200.c @@ -419,7 +419,7 @@ xrx200_change_mtu(struct net_device *net_dev, int new_mtu) int curr_desc; int ret = 0; - net_dev->mtu = new_mtu; + WRITE_ONCE(net_dev->mtu, new_mtu); priv->rx_buf_size = xrx200_buffer_size(new_mtu); priv->rx_skb_size = xrx200_skb_size(priv->rx_buf_size); @@ -440,7 +440,7 @@ xrx200_change_mtu(struct net_device *net_dev, int new_mtu) buff = ch_rx->rx_buff[ch_rx->dma.desc]; ret = xrx200_alloc_buf(ch_rx, netdev_alloc_frag); if (ret) { - net_dev->mtu = old_mtu; + WRITE_ONCE(net_dev->mtu, old_mtu); priv->rx_buf_size = xrx200_buffer_size(old_mtu); priv->rx_skb_size = xrx200_skb_size(priv->rx_buf_size); break; diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c index f0bdc06d253d5..f35ae2c88091d 100644 --- a/drivers/net/ethernet/marvell/mv643xx_eth.c +++ b/drivers/net/ethernet/marvell/mv643xx_eth.c @@ -2562,7 +2562,7 @@ static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) { struct mv643xx_eth_private *mp = netdev_priv(dev); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); mv643xx_eth_recalc_skb_size(mp); tx_set_rate(mp, 1000000000, 16777216); diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 26bf5d47ba027..41894834fb53c 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -3861,7 +3861,7 @@ static int mvneta_change_mtu(struct net_device *dev, int mtu) return -EINVAL; } - dev->mtu = mtu; + WRITE_ONCE(dev->mtu, mtu); if (!netif_running(dev)) { if (pp->bm_priv) diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index 19253a0fb4fef..e91486c48de38 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -1375,7 +1375,7 @@ static int mvpp2_bm_update_mtu(struct net_device *dev, int mtu) } out_set: - dev->mtu = mtu; + WRITE_ONCE(dev->mtu, mtu); dev->wanted_features = dev->features; netdev_update_features(dev); diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c index 7c9faa714a10a..549436efc2048 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c @@ -1096,7 +1096,7 @@ static int octep_change_mtu(struct net_device *netdev, int new_mtu) true); if (!err) { oct->link_info.mtu = new_mtu; - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); } return err; diff --git a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c index dd49d0b8b4949..7e6771c9cdbba 100644 --- a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c +++ b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c @@ -881,7 +881,7 @@ static int octep_vf_change_mtu(struct net_device *netdev, int new_mtu) err = octep_vf_mbox_set_mtu(oct, new_mtu); if (!err) { oct->link_info.mtu = new_mtu; - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); } return err; } diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c index 14bccff0ee5c7..f5bce3e326cca 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -67,7 +67,7 @@ static int otx2_change_mtu(struct net_device *netdev, int new_mtu) netdev_info(netdev, "Changing MTU from %d to %d\n", netdev->mtu, new_mtu); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (if_up) err = otx2_open(netdev); diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c index cf0aa16d75407..99fcc5661674b 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c @@ -456,7 +456,7 @@ static int otx2vf_change_mtu(struct net_device *netdev, int new_mtu) netdev_info(netdev, "Changing MTU from %d to %d\n", netdev->mtu, new_mtu); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (if_up) err = otx2vf_open(netdev); diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c index ba6d53ac7f552..63ae01954dfc5 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_main.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c @@ -489,7 +489,7 @@ static int prestera_port_change_mtu(struct net_device *dev, int mtu) if (err) return err; - dev->mtu = mtu; + WRITE_ONCE(dev->mtu, mtu); return 0; } diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c index dd6ca2e4fd517..1a59c952aa01c 100644 --- a/drivers/net/ethernet/marvell/pxa168_eth.c +++ b/drivers/net/ethernet/marvell/pxa168_eth.c @@ -1188,7 +1188,7 @@ static int pxa168_eth_change_mtu(struct net_device *dev, int mtu) { struct pxa168_eth_private *pep = netdev_priv(dev); - dev->mtu = mtu; + WRITE_ONCE(dev->mtu, mtu); set_port_config_ext(pep); if (!netif_running(dev)) diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c index 1b43704baceb5..fcfb34561882b 100644 --- a/drivers/net/ethernet/marvell/skge.c +++ b/drivers/net/ethernet/marvell/skge.c @@ -2905,13 +2905,13 @@ static int skge_change_mtu(struct net_device *dev, int new_mtu) int err; if (!netif_running(dev)) { - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } skge_down(dev); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); err = skge_up(dev); if (err) diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c index f3f7f4cc27b3a..a7a16eac18913 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -2384,7 +2384,7 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu) u32 imask; if (!netif_running(dev)) { - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); netdev_update_features(dev); return 0; } @@ -2407,7 +2407,7 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu) sky2_rx_stop(sky2); sky2_rx_clean(sky2); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); netdev_update_features(dev); mode = DATA_BLIND_VAL(DATA_BLIND_DEF) | GM_SMOD_VLAN_ENA; diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index d7a96dc11c079..179c0230655a8 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -4055,7 +4055,7 @@ static int mtk_change_mtu(struct net_device *dev, int new_mtu) } mtk_set_mcr_max_rx(mac, length); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 5d3fde63b2739..4c089cfa027af 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -1649,7 +1649,7 @@ int mlx4_en_start_port(struct net_device *dev) sizeof(struct ethtool_flow_id) * MAX_NUM_OF_FS_RULES); /* Calculate Rx buf size */ - dev->mtu = min(dev->mtu, priv->max_mtu); + WRITE_ONCE(dev->mtu, min(dev->mtu, priv->max_mtu)); mlx4_en_calc_rx_buf(dev); en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size); @@ -2394,7 +2394,7 @@ static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) !mlx4_en_check_xdp_mtu(dev, new_mtu)) return -EOPNOTSUPP; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (netif_running(dev)) { mutex_lock(&mdev->state_lock); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 3bd0695845c7d..ffe8919494d55 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -4525,7 +4525,7 @@ int mlx5e_change_mtu(struct net_device *netdev, int new_mtu, err = mlx5e_safe_switch_params(priv, &new_params, preactivate, NULL, reset); out: - netdev->mtu = params->sw_mtu; + WRITE_ONCE(netdev->mtu, params->sw_mtu); mutex_unlock(&priv->state_lock); return err; } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c index d77be1b4dd9c5..8e0404c0d1ca8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c @@ -531,7 +531,7 @@ static int mlx5i_change_mtu(struct net_device *netdev, int new_mtu) if (err) goto out; - netdev->mtu = new_params.sw_mtu; + WRITE_ONCE(netdev->mtu, new_params.sw_mtu); out: mutex_unlock(&priv->state_lock); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c index f87471306f6b5..028a76944d82d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c @@ -280,7 +280,7 @@ static int mlx5i_pkey_change_mtu(struct net_device *netdev, int new_mtu) struct mlx5e_priv *priv = mlx5i_epriv(netdev); mutex_lock(&priv->state_lock); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); mutex_unlock(&priv->state_lock); return 0; diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index bb642e9bb6cf8..030ed71f945d6 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -825,7 +825,7 @@ static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu) err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu); if (err) goto err_port_mtu_set; - dev->mtu = mtu; + WRITE_ONCE(dev->mtu, mtu); return 0; err_port_mtu_set: diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c index c5aeeb964c17a..dc1d9f7745658 100644 --- a/drivers/net/ethernet/micrel/ksz884x.c +++ b/drivers/net/ethernet/micrel/ksz884x.c @@ -5427,7 +5427,7 @@ static int netdev_change_mtu(struct net_device *dev, int new_mtu) } hw_mtu = (hw_mtu + 3) & ~3; hw_priv->mtu = hw_mtu; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c index cee47729d022f..6be8a43c908a8 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.c +++ b/drivers/net/ethernet/microchip/lan743x_main.c @@ -3184,7 +3184,7 @@ static int lan743x_netdev_change_mtu(struct net_device *netdev, int new_mtu) ret = lan743x_mac_set_mtu(adapter, new_mtu); if (!ret) - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); return ret; } diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c index b7e75da658340..b12d3b8a64fd3 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c @@ -402,7 +402,7 @@ static int lan966x_port_change_mtu(struct net_device *dev, int new_mtu) lan_wr(DEV_MAC_MAXLEN_CFG_MAX_LEN_SET(LAN966X_HW_MTU(new_mtu)), lan966x, DEV_MAC_MAXLEN_CFG(port->chip_port)); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (!lan966x->fdma) return 0; diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c index f2fae659bf3b2..d087cf954f755 100644 --- a/drivers/net/ethernet/microsoft/mana/mana_en.c +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c @@ -690,12 +690,12 @@ static int mana_change_mtu(struct net_device *ndev, int new_mtu) goto out; } - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); err = mana_attach(ndev); if (err) { netdev_err(ndev, "mana_attach failed: %d\n", err); - ndev->mtu = old_mtu; + WRITE_ONCE(ndev->mtu, old_mtu); } out: diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c index 7b7e1c5b00f47..b7d9657a7af3d 100644 --- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c +++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c @@ -3036,11 +3036,11 @@ static int myri10ge_change_mtu(struct net_device *dev, int new_mtu) /* if we change the mtu on an active device, we must * reset the device so the firmware sees the change */ myri10ge_close(dev); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); myri10ge_open(dev); - } else - dev->mtu = new_mtu; - + } else { + WRITE_ONCE(dev->mtu, new_mtu); + } return 0; } diff --git a/drivers/net/ethernet/natsemi/natsemi.c b/drivers/net/ethernet/natsemi/natsemi.c index 650a5a1660701..ad0c14849115d 100644 --- a/drivers/net/ethernet/natsemi/natsemi.c +++ b/drivers/net/ethernet/natsemi/natsemi.c @@ -2526,7 +2526,7 @@ static void __set_rx_mode(struct net_device *dev) static int natsemi_change_mtu(struct net_device *dev, int new_mtu) { - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); /* synchronized against open : rtnl_lock() held by caller */ if (netif_running(dev)) { diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c index 55408f16fbbc4..f235e76e4ce9a 100644 --- a/drivers/net/ethernet/neterion/s2io.c +++ b/drivers/net/ethernet/neterion/s2io.c @@ -6637,7 +6637,7 @@ static int s2io_change_mtu(struct net_device *dev, int new_mtu) struct s2io_nic *sp = netdev_priv(dev); int ret = 0; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (netif_running(dev)) { s2io_stop_all_tx_queue(sp); s2io_card_down(sp); diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 997cc4fcffdbf..182ba0a8b095b 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -1526,7 +1526,7 @@ static void nfp_net_dp_swap(struct nfp_net *nn, struct nfp_net_dp *dp) *dp = nn->dp; nn->dp = new_dp; - nn->dp.netdev->mtu = new_dp.mtu; + WRITE_ONCE(nn->dp.netdev->mtu, new_dp.mtu); if (!netif_is_rxfh_configured(nn->dp.netdev)) nfp_net_rss_init_itbl(nn); diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c index 3af1229a3f08d..eee0bfc41074e 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c @@ -177,7 +177,7 @@ static int nfp_repr_change_mtu(struct net_device *netdev, int new_mtu) if (err) return err; - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/ni/nixge.c b/drivers/net/ethernet/ni/nixge.c index fa1f78b03cb2b..2aa4ad9cf96e8 100644 --- a/drivers/net/ethernet/ni/nixge.c +++ b/drivers/net/ethernet/ni/nixge.c @@ -946,7 +946,7 @@ static int nixge_change_mtu(struct net_device *ndev, int new_mtu) NIXGE_MAX_JUMBO_FRAME_SIZE) return -EINVAL; - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index 31f896c4aa266..720f577929dbf 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -3098,7 +3098,7 @@ static int nv_change_mtu(struct net_device *dev, int new_mtu) int old_mtu; old_mtu = dev->mtu; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); /* return early if the buffer sizes will not change */ if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN) diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index 28b7cec485ef0..4ac29cd59f2bf 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -2184,7 +2184,7 @@ static int pch_gbe_change_mtu(struct net_device *netdev, int new_mtu) } } else { pch_gbe_reset(adapter); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); adapter->hw.mac.max_frame_size = max_frame; } diff --git a/drivers/net/ethernet/pasemi/pasemi_mac.c b/drivers/net/ethernet/pasemi/pasemi_mac.c index ed7dd0a042355..62ba269da9026 100644 --- a/drivers/net/ethernet/pasemi/pasemi_mac.c +++ b/drivers/net/ethernet/pasemi/pasemi_mac.c @@ -1639,7 +1639,7 @@ static int pasemi_mac_change_mtu(struct net_device *dev, int new_mtu) reg |= PAS_MAC_CFG_MACCFG_MAXF(new_mtu + ETH_HLEN + 4); write_mac_reg(mac, PAS_MAC_CFG_MACCFG, reg); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); /* MTU + ETH_HLEN + VLAN_HLEN + 2 64B cachelines */ mac->bufsz = new_mtu + ETH_HLEN + ETH_FCS_LEN + LOCAL_SKB_ALIGN + 128; diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c index 7f0c6cdc375e3..24870da3f4848 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c @@ -1761,13 +1761,13 @@ static int ionic_change_mtu(struct net_device *netdev, int new_mtu) /* if we're not running, nothing more to do */ if (!netif_running(netdev)) { - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); return 0; } mutex_lock(&lif->queue_lock); ionic_stop_queues_reconfig(lif); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); err = ionic_start_queues_reconfig(lif); mutex_unlock(&lif->queue_lock); diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c index 6e12cd21ac906..89c8b23496942 100644 --- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c +++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c @@ -960,7 +960,7 @@ int netxen_nic_change_mtu(struct net_device *netdev, int mtu) rc = adapter->set_mtu(adapter, mtu); if (!rc) - netdev->mtu = mtu; + WRITE_ONCE(netdev->mtu, mtu); return rc; } diff --git a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c index ae3ebf0cf9990..f497f6ca10188 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c +++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c @@ -1026,7 +1026,7 @@ static int qede_get_regs_len(struct net_device *ndev) static void qede_update_mtu(struct qede_dev *edev, struct qede_reload_args *args) { - edev->ndev->mtu = args->u.mtu; + WRITE_ONCE(edev->ndev->mtu, args->u.mtu); } /* Netdevice NDOs */ diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c index 4b8bc46f55c29..ae4ee0326ee15 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c @@ -1015,7 +1015,7 @@ int qlcnic_change_mtu(struct net_device *netdev, int mtu) rc = qlcnic_fw_cmd_set_mtu(adapter, mtu); if (!rc) - netdev->mtu = mtu; + WRITE_ONCE(netdev->mtu, mtu); return rc; } diff --git a/drivers/net/ethernet/qualcomm/emac/emac.c b/drivers/net/ethernet/qualcomm/emac/emac.c index 4c06f55878de9..99d4647bf245d 100644 --- a/drivers/net/ethernet/qualcomm/emac/emac.c +++ b/drivers/net/ethernet/qualcomm/emac/emac.c @@ -216,7 +216,7 @@ static int emac_change_mtu(struct net_device *netdev, int new_mtu) netif_dbg(adpt, hw, adpt->netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (netif_running(netdev)) return emac_reinit_locked(adpt); diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c index 9d2a9562c96ff..f1e40aade127b 100644 --- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c +++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c @@ -90,7 +90,7 @@ static int rmnet_vnd_change_mtu(struct net_device *rmnet_dev, int new_mtu) new_mtu > (priv->real_dev->mtu - headroom)) return -EINVAL; - rmnet_dev->mtu = new_mtu; + WRITE_ONCE(rmnet_dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c index f5786d78ed230..5652da8a178c0 100644 --- a/drivers/net/ethernet/realtek/8139cp.c +++ b/drivers/net/ethernet/realtek/8139cp.c @@ -1277,14 +1277,14 @@ static int cp_change_mtu(struct net_device *dev, int new_mtu) /* if network interface not up, no need for complexity */ if (!netif_running(dev)) { - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); cp_set_rxbufsize(cp); /* set new rx buf size */ return 0; } /* network IS up, close it, reset MTU, and come up again. */ cp_close(dev); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); cp_set_rxbufsize(cp); return cp_open(dev); } diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index fab21d2bc4ffa..5abbea91bc07e 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -3924,7 +3924,7 @@ static int rtl8169_change_mtu(struct net_device *dev, int new_mtu) { struct rtl8169_private *tp = netdev_priv(dev); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); netdev_update_features(dev); rtl_jumbo_config(tp); rtl_set_eee_txidle_timer(tp); diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 384ddad65aaf6..4d100283c30fb 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2423,7 +2423,7 @@ static int ravb_change_mtu(struct net_device *ndev, int new_mtu) { struct ravb_private *priv = netdev_priv(ndev); - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); if (netif_running(ndev)) { synchronize_irq(priv->emac_irq); diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 0786eb0da3914..7a25903e35c30 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -2624,7 +2624,7 @@ static int sh_eth_change_mtu(struct net_device *ndev, int new_mtu) if (netif_running(ndev)) return -EBUSY; - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); netdev_update_features(ndev); return 0; diff --git a/drivers/net/ethernet/rocker/rocker_main.c b/drivers/net/ethernet/rocker/rocker_main.c index 755db89db9099..e097ce3e69ea3 100644 --- a/drivers/net/ethernet/rocker/rocker_main.c +++ b/drivers/net/ethernet/rocker/rocker_main.c @@ -1967,7 +1967,7 @@ static int rocker_port_change_mtu(struct net_device *dev, int new_mtu) rocker_port_stop(dev); netdev_info(dev, "MTU change from %d to %d\n", dev->mtu, new_mtu); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); err = rocker_cmd_set_port_settings_mtu(rocker_port, new_mtu); if (err) diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c index ecbe3994f2b1b..12c8396b6942d 100644 --- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c +++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c @@ -1804,7 +1804,7 @@ static int sxgbe_set_features(struct net_device *dev, */ static int sxgbe_change_mtu(struct net_device *dev, int new_mtu) { - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (!netif_running(dev)) return 0; diff --git a/drivers/net/ethernet/sfc/efx_common.c b/drivers/net/ethernet/sfc/efx_common.c index 551f890db90a6..4ebd5ae23ecae 100644 --- a/drivers/net/ethernet/sfc/efx_common.c +++ b/drivers/net/ethernet/sfc/efx_common.c @@ -302,7 +302,7 @@ int efx_change_mtu(struct net_device *net_dev, int new_mtu) efx_stop_all(efx); mutex_lock(&efx->mac_lock); - net_dev->mtu = new_mtu; + WRITE_ONCE(net_dev->mtu, new_mtu); efx_mac_reconfigure(efx, true); mutex_unlock(&efx->mac_lock); diff --git a/drivers/net/ethernet/sfc/falcon/efx.c b/drivers/net/ethernet/sfc/falcon/efx.c index 1cb32aedd89c7..8925745f1c17f 100644 --- a/drivers/net/ethernet/sfc/falcon/efx.c +++ b/drivers/net/ethernet/sfc/falcon/efx.c @@ -2125,7 +2125,7 @@ static int ef4_change_mtu(struct net_device *net_dev, int new_mtu) ef4_stop_all(efx); mutex_lock(&efx->mac_lock); - net_dev->mtu = new_mtu; + WRITE_ONCE(net_dev->mtu, new_mtu); ef4_mac_reconfigure(efx); mutex_unlock(&efx->mac_lock); diff --git a/drivers/net/ethernet/sfc/siena/efx_common.c b/drivers/net/ethernet/sfc/siena/efx_common.c index 88e5bc347a44c..cf195162e2708 100644 --- a/drivers/net/ethernet/sfc/siena/efx_common.c +++ b/drivers/net/ethernet/sfc/siena/efx_common.c @@ -306,7 +306,7 @@ int efx_siena_change_mtu(struct net_device *net_dev, int new_mtu) efx_siena_stop_all(efx); mutex_lock(&efx->mac_lock); - net_dev->mtu = new_mtu; + WRITE_ONCE(net_dev->mtu, new_mtu); efx_siena_mac_reconfigure(efx, true); mutex_unlock(&efx->mac_lock); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 59bf83904b62d..3d828904db0d3 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -5909,7 +5909,7 @@ static int stmmac_change_mtu(struct net_device *dev, int new_mtu) stmmac_set_rx_mode(dev); } - dev->mtu = mtu; + WRITE_ONCE(dev->mtu, mtu); netdev_update_features(dev); return 0; diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c index 8f1f43dbb76dc..b8948d5b779af 100644 --- a/drivers/net/ethernet/sun/cassini.c +++ b/drivers/net/ethernet/sun/cassini.c @@ -3804,7 +3804,7 @@ static int cas_change_mtu(struct net_device *dev, int new_mtu) { struct cas *cp = netdev_priv(dev); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (!netif_running(dev) || !netif_device_present(dev)) return 0; diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c index f68aa813d4fb1..41a27ae58cedf 100644 --- a/drivers/net/ethernet/sun/niu.c +++ b/drivers/net/ethernet/sun/niu.c @@ -6751,7 +6751,7 @@ static int niu_change_mtu(struct net_device *dev, int new_mtu) orig_jumbo = (dev->mtu > ETH_DATA_LEN); new_jumbo = (new_mtu > ETH_DATA_LEN); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (!netif_running(dev) || (orig_jumbo == new_jumbo)) diff --git a/drivers/net/ethernet/sun/sungem.c b/drivers/net/ethernet/sun/sungem.c index 9bd1df8308d24..4aa356e2f2993 100644 --- a/drivers/net/ethernet/sun/sungem.c +++ b/drivers/net/ethernet/sun/sungem.c @@ -2499,7 +2499,7 @@ static int gem_change_mtu(struct net_device *dev, int new_mtu) { struct gem *gp = netdev_priv(dev); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); /* We'll just catch it later when the device is up'd or resumed */ if (!netif_running(dev) || !netif_device_present(dev)) diff --git a/drivers/net/ethernet/synopsys/dwc-xlgmac-net.c b/drivers/net/ethernet/synopsys/dwc-xlgmac-net.c index 36b948820c1e5..d1793b6154c75 100644 --- a/drivers/net/ethernet/synopsys/dwc-xlgmac-net.c +++ b/drivers/net/ethernet/synopsys/dwc-xlgmac-net.c @@ -823,7 +823,7 @@ static int xlgmac_change_mtu(struct net_device *netdev, int mtu) return ret; pdata->rx_buf_size = ret; - netdev->mtu = mtu; + WRITE_ONCE(netdev->mtu, mtu); xlgmac_restart_dev(pdata); diff --git a/drivers/net/ethernet/tehuti/tehuti.c b/drivers/net/ethernet/tehuti/tehuti.c index ca409515ead5a..ede5f7890fb4b 100644 --- a/drivers/net/ethernet/tehuti/tehuti.c +++ b/drivers/net/ethernet/tehuti/tehuti.c @@ -756,7 +756,7 @@ static int bdx_change_mtu(struct net_device *ndev, int new_mtu) { ENTER; - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); if (netif_running(ndev)) { bdx_close(ndev); bdx_open(ndev); diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c index 1c6b2a9bba081..55fff4d0d3801 100644 --- a/drivers/net/ethernet/via/via-velocity.c +++ b/drivers/net/ethernet/via/via-velocity.c @@ -2294,7 +2294,7 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu) int ret = 0; if (!netif_running(dev)) { - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); goto out_0; } @@ -2336,7 +2336,7 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu) tmp_vptr->rx = rx; tmp_vptr->tx = tx; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); velocity_init_registers(vptr, VELOCITY_INIT_COLD); diff --git a/drivers/net/ethernet/wangxun/libwx/wx_hw.c b/drivers/net/ethernet/wangxun/libwx/wx_hw.c index 945c13d1a9829..3662483bfe2e7 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_hw.c +++ b/drivers/net/ethernet/wangxun/libwx/wx_hw.c @@ -1408,7 +1408,7 @@ int wx_change_mtu(struct net_device *netdev, int new_mtu) { struct wx *wx = netdev_priv(netdev); - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); wx_set_rx_buffer_len(wx); return 0; diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index aaf780fd4f5e7..c29809cd92015 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -1641,7 +1641,7 @@ static int axienet_change_mtu(struct net_device *ndev, int new_mtu) XAE_TRL_SIZE) > lp->rxmem) return -EINVAL; - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c index e0d26148dfd95..8aff6a73ca0a2 100644 --- a/drivers/net/ethernet/xscale/ixp4xx_eth.c +++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c @@ -1233,7 +1233,7 @@ static int ixp4xx_eth_change_mtu(struct net_device *dev, int new_mtu) return ret; } - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c index 5fbe33a09bb0b..6411da359e5aa 100644 --- a/drivers/net/fjes/fjes_main.c +++ b/drivers/net/fjes/fjes_main.c @@ -811,7 +811,7 @@ static int fjes_change_mtu(struct net_device *netdev, int new_mtu) netif_tx_stop_all_queues(netdev); } - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); if (running) { for (epidx = 0; epidx < hw->max_epid; epidx++) { diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index f918ca6146c82..51495cb4b9be4 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -1059,7 +1059,7 @@ static int geneve_change_mtu(struct net_device *dev, int new_mtu) else if (new_mtu < dev->min_mtu) new_mtu = dev->min_mtu; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 11831a1c97623..44142245343d9 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -1233,14 +1233,14 @@ static int netvsc_change_mtu(struct net_device *ndev, int mtu) if (ret) goto rollback_vf; - ndev->mtu = mtu; + WRITE_ONCE(ndev->mtu, mtu); ret = netvsc_attach(ndev, device_info); if (!ret) goto out; /* Attempt rollback to original MTU */ - ndev->mtu = orig_mtu; + WRITE_ONCE(ndev->mtu, orig_mtu); if (netvsc_attach(ndev, device_info)) netdev_err(ndev, "restoring mtu failed\n"); diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c index ff016c11b4a03..2da70bc3dd869 100644 --- a/drivers/net/macsec.c +++ b/drivers/net/macsec.c @@ -3753,7 +3753,7 @@ static int macsec_change_mtu(struct net_device *dev, int new_mtu) if (macsec->real_dev->mtu - extra < new_mtu) return -ERANGE; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 0cec2783a3e71..67b7ef2d463fa 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -865,7 +865,7 @@ static int macvlan_change_mtu(struct net_device *dev, int new_mtu) if (vlan->lowerdev->mtu < new_mtu) return -EINVAL; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/net_failover.c b/drivers/net/net_failover.c index d0c916a53d7ce..963d8b4af28d7 100644 --- a/drivers/net/net_failover.c +++ b/drivers/net/net_failover.c @@ -231,7 +231,7 @@ static int net_failover_change_mtu(struct net_device *dev, int new_mtu) } } - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c index d127856f8f366..e3a385a322695 100644 --- a/drivers/net/netdevsim/netdev.c +++ b/drivers/net/netdevsim/netdev.c @@ -74,7 +74,7 @@ static int nsim_change_mtu(struct net_device *dev, int new_mtu) if (ns->xdp.prog && new_mtu > NSIM_XDP_MAX_MTU) return -EBUSY; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/ntb_netdev.c b/drivers/net/ntb_netdev.c index 536bd6564f8b8..ffe7f463e16ee 100644 --- a/drivers/net/ntb_netdev.c +++ b/drivers/net/ntb_netdev.c @@ -306,7 +306,7 @@ static int ntb_netdev_change_mtu(struct net_device *ndev, int new_mtu) return -EINVAL; if (!netif_running(ndev)) { - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); return 0; } @@ -335,7 +335,7 @@ static int ntb_netdev_change_mtu(struct net_device *ndev, int new_mtu) } } - ndev->mtu = new_mtu; + WRITE_ONCE(ndev->mtu, new_mtu); ntb_transport_link_up(dev->qp); diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c index 0aba3569ccc0d..fb362ee248ff2 100644 --- a/drivers/net/slip/slip.c +++ b/drivers/net/slip/slip.c @@ -286,7 +286,7 @@ static int sl_realloc_bufs(struct slip *sl, int mtu) } } sl->mtu = mtu; - dev->mtu = mtu; + WRITE_ONCE(dev->mtu, mtu); sl->buffsize = len; err = 0; diff --git a/drivers/net/team/team_core.c b/drivers/net/team/team_core.c index 8c7dbaf7c22eb..ab1935a4aa2cd 100644 --- a/drivers/net/team/team_core.c +++ b/drivers/net/team/team_core.c @@ -1831,7 +1831,7 @@ static int team_change_mtu(struct net_device *dev, int new_mtu) team->port_mtu_change_allowed = false; mutex_unlock(&team->lock); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; diff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c index 7b8afa589a53c..74571c8e76919 100644 --- a/drivers/net/usb/aqc111.c +++ b/drivers/net/usb/aqc111.c @@ -424,7 +424,7 @@ static int aqc111_change_mtu(struct net_device *net, int new_mtu) u16 reg16 = 0; u8 buf[5]; - net->mtu = new_mtu; + WRITE_ONCE(net->mtu, new_mtu); dev->hard_mtu = net->mtu + net->hard_header_len; aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c index f7cff58fe0449..57d6e5abc30e8 100644 --- a/drivers/net/usb/asix_devices.c +++ b/drivers/net/usb/asix_devices.c @@ -1230,7 +1230,7 @@ static int ax88178_change_mtu(struct net_device *net, int new_mtu) if ((ll_mtu % dev->maxpacket) == 0) return -EDOM; - net->mtu = new_mtu; + WRITE_ONCE(net->mtu, new_mtu); dev->hard_mtu = net->mtu + net->hard_header_len; ax88178_set_mfb(dev); diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c index b25535aa15ae3..c5196b5313c0b 100644 --- a/drivers/net/usb/ax88179_178a.c +++ b/drivers/net/usb/ax88179_178a.c @@ -943,7 +943,7 @@ static int ax88179_change_mtu(struct net_device *net, int new_mtu) struct usbnet *dev = netdev_priv(net); u16 tmp16; - net->mtu = new_mtu; + WRITE_ONCE(net->mtu, new_mtu); dev->hard_mtu = net->mtu + net->hard_header_len; if (net->mtu > 1500) { diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index db05622f1f703..bf76ecccc2e6a 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -798,7 +798,7 @@ int cdc_ncm_change_mtu(struct net_device *net, int new_mtu) { struct usbnet *dev = netdev_priv(net); - net->mtu = new_mtu; + WRITE_ONCE(net->mtu, new_mtu); cdc_ncm_set_dgram_size(dev, new_mtu + cdc_ncm_eth_hlen(dev)); return 0; diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index 0030be502daa4..5a2c38b63012c 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -2528,7 +2528,7 @@ static int lan78xx_change_mtu(struct net_device *netdev, int new_mtu) ret = lan78xx_set_rx_max_frame_length(dev, max_frame_len); if (!ret) - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); usb_autopm_put_interface(dev->intf); diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 51e9f5b2dccff..19df1cd9f0724 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -9365,7 +9365,7 @@ static int rtl8152_change_mtu(struct net_device *dev, int new_mtu) case RTL_VER_01: case RTL_VER_02: case RTL_VER_07: - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; default: break; @@ -9377,7 +9377,7 @@ static int rtl8152_change_mtu(struct net_device *dev, int new_mtu) mutex_lock(&tp->control); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (netif_running(dev)) { if (tp->rtl_ops.change_mtu) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index f3f7f686fe9ce..9fd516e8bb107 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -398,7 +398,7 @@ int usbnet_change_mtu (struct net_device *net, int new_mtu) // no second zero-length packet read wanted after mtu-sized packets if ((ll_mtu % dev->maxpacket) == 0) return -EDOM; - net->mtu = new_mtu; + WRITE_ONCE(net->mtu, new_mtu); dev->hard_mtu = net->mtu + net->hard_header_len; if (dev->rx_urb_size == old_hard_mtu) { diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 0578864792b60..89ca6e75fcc6b 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -3457,7 +3457,7 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) struct vmxnet3_adapter *adapter = netdev_priv(netdev); int err = 0; - netdev->mtu = new_mtu; + WRITE_ONCE(netdev->mtu, new_mtu); /* * Reset_work may be in the middle of resetting the device, wait for its diff --git a/drivers/net/vsockmon.c b/drivers/net/vsockmon.c index a1ba5169ed5db..4c260074c091f 100644 --- a/drivers/net/vsockmon.c +++ b/drivers/net/vsockmon.c @@ -58,7 +58,7 @@ static int vsockmon_change_mtu(struct net_device *dev, int new_mtu) if (!vsockmon_is_valid_mtu(new_mtu)) return -EINVAL; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c index 7e3a7d1f20181..f78dd0438843b 100644 --- a/drivers/net/vxlan/vxlan_core.c +++ b/drivers/net/vxlan/vxlan_core.c @@ -3181,7 +3181,7 @@ static int vxlan_change_mtu(struct net_device *dev, int new_mtu) return -EINVAL; } - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 65db5f14465f3..325fcb3d10759 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -358,7 +358,7 @@ static int xenvif_change_mtu(struct net_device *dev, int mtu) if (mtu > max) return -EINVAL; - dev->mtu = mtu; + WRITE_ONCE(dev->mtu, mtu); return 0; } diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 8d2aee88526c6..4265c1cd0ff71 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -1376,7 +1376,7 @@ static int xennet_change_mtu(struct net_device *dev, int mtu) if (mtu > max) return -EINVAL; - dev->mtu = mtu; + WRITE_ONCE(dev->mtu, mtu); return 0; } diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index 878fe3ce53ada..b93c2eb45916d 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -996,7 +996,7 @@ static int ctcm_change_mtu(struct net_device *dev, int new_mtu) return -EINVAL; dev->hard_header_len = LL_HEADER_LENGTH + 2; } - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 39876eff51d21..3efba4f857ac6 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -149,7 +149,7 @@ static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu) if (max_mtu < new_mtu) return -ERANGE; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 89c51b3cf4307..30ecbc2ef1fd9 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -159,7 +159,7 @@ static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu) if (new_mtu < ETH_MIN_MTU || new_mtu > batadv_hardif_min_mtu(dev)) return -EINVAL; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); bat_priv->mtu_set_by_user = new_mtu; return 0; diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index ab4d33e020142..71b50001ca588 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -197,7 +197,7 @@ static int br_change_mtu(struct net_device *dev, int new_mtu) { struct net_bridge *br = netdev_priv(dev); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); /* this flag will be cleared if the MTU was automatically adjusted */ br_opt_toggle(br, BROPT_MTU_SET_BY_USER, true); diff --git a/net/dsa/user.c b/net/dsa/user.c index c94b868855aa1..1f7b8f21db9e4 100644 --- a/net/dsa/user.c +++ b/net/dsa/user.c @@ -2120,7 +2120,7 @@ int dsa_user_change_mtu(struct net_device *dev, int new_mtu) if (err) goto out_port_failed; - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); dsa_bridge_mtu_normalization(dp); diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c index 86127300b102f..26d5282a64960 100644 --- a/net/hsr/hsr_device.c +++ b/net/hsr/hsr_device.c @@ -123,7 +123,7 @@ static int hsr_dev_change_mtu(struct net_device *dev, int new_mtu) return -EINVAL; } - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } diff --git a/net/hsr/hsr_main.c b/net/hsr/hsr_main.c index 9756e657bab97..d7ae32473c41a 100644 --- a/net/hsr/hsr_main.c +++ b/net/hsr/hsr_main.c @@ -96,7 +96,7 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event, break; /* Handled in ndo_change_mtu() */ mtu_max = hsr_get_max_mtu(port->hsr); master = hsr_port_get_hsr(port->hsr, HSR_PT_MASTER); - master->dev->mtu = mtu_max; + WRITE_ONCE(master->dev->mtu, mtu_max); break; case NETDEV_UNREGISTER: if (!is_hsr_master(dev)) { diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index c3af965dc4078..ba205473522e4 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -793,7 +793,7 @@ static void ipgre_link_update(struct net_device *dev, bool set_mtu) dev->needed_headroom += len; if (set_mtu) - dev->mtu = max_t(int, dev->mtu - len, 68); + WRITE_ONCE(dev->mtu, max_t(int, dev->mtu - len, 68)); if (test_bit(IP_TUNNEL_SEQ_BIT, tunnel->parms.o_flags) || (test_bit(IP_TUNNEL_CSUM_BIT, tunnel->parms.o_flags) && diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index f1c5f6c3f2f82..bccef2fcf6207 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -897,7 +897,7 @@ static void ip_tunnel_update(struct ip_tunnel_net *itn, t->fwmark = fwmark; mtu = ip_tunnel_bind_dev(dev); if (set_mtu) - dev->mtu = mtu; + WRITE_ONCE(dev->mtu, mtu); } dst_cache_reset(&t->dst_cache); netdev_state_change(dev); @@ -1082,7 +1082,7 @@ int __ip_tunnel_change_mtu(struct net_device *dev, int new_mtu, bool strict) new_mtu = max_mtu; } - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } EXPORT_SYMBOL_GPL(__ip_tunnel_change_mtu); diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 5aec79c2af1a5..9dee0c1279554 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1746,7 +1746,7 @@ int ip6_tnl_change_mtu(struct net_device *dev, int new_mtu) if (new_mtu > IP_MAX_MTU - dev->hard_header_len) return -EINVAL; } - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } EXPORT_SYMBOL(ip6_tnl_change_mtu); diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c index 78344cf3867ea..590737c275379 100644 --- a/net/ipv6/ip6_vti.c +++ b/net/ipv6/ip6_vti.c @@ -666,7 +666,8 @@ static void vti6_link_config(struct ip6_tnl *t, bool keep_mtu) dev->flags &= ~IFF_POINTOPOINT; if (keep_mtu && dev->mtu) { - dev->mtu = clamp(dev->mtu, dev->min_mtu, dev->max_mtu); + WRITE_ONCE(dev->mtu, + clamp(dev->mtu, dev->min_mtu, dev->max_mtu)); return; } diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c index 29850d0f07330..8badec6d82a24 100644 --- a/net/sched/sch_teql.c +++ b/net/sched/sch_teql.c @@ -424,7 +424,7 @@ static int teql_master_mtu(struct net_device *dev, int new_mtu) } while ((q = NEXT_SLAVE(q)) != m->slaves); } - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; } -- linux integration

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[linux-merge]linux integration; branch, batadv/net, updated. v6.10-rc1-1-g8dd48738e010e
by postmaster＠open-mesh.org 03 Jun '24

03 Jun '24

The following commit has been merged in the batadv/net branch: commit 8dd48738e010ee4e1f2096748eb551e03fe1110f Author: Sven Eckelmann <sven(a)narfation.org> Date: Sat May 4 21:57:30 2024 +0200 batman-adv: Don't accept TT entries for out-of-spec VIDs The internal handling of VLAN IDs in batman-adv is only specified for following encodings: * VLAN is used - bit 15 is 1 - bit 11 - bit 0 is the VLAN ID (0-4095) - remaining bits are 0 * No VLAN is used - bit 15 is 0 - remaining bits are 0 batman-adv was only preparing new translation table entries (based on its soft interface information) using this encoding format. But the receive path was never checking if entries in the roam or TT TVLVs were also following this encoding. It was therefore possible to create more than the expected maximum of 4096 + 1 entries in the originator VLAN list. Simply by setting the "remaining bits" to "random" values in corresponding TVLV. Cc: stable(a)vger.kernel.org Fixes: 7ea7b4a14275 ("batman-adv: make the TT CRC logic VLAN specific") Reported-by: Linus Lüssing <linus.luessing(a)c0d3.blue> Signed-off-by: Sven Eckelmann <sven(a)narfation.org> diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c index ac74f6ead62d5..8f6dd2c6ee41d 100644 --- a/net/batman-adv/originator.c +++ b/net/batman-adv/originator.c @@ -12,6 +12,7 @@ #include <linux/errno.h> #include <linux/etherdevice.h> #include <linux/gfp.h> +#include <linux/if_vlan.h> #include <linux/jiffies.h> #include <linux/kref.h> #include <linux/list.h> @@ -131,6 +132,29 @@ batadv_orig_node_vlan_get(struct batadv_orig_node *orig_node, return vlan; } +/** + * batadv_vlan_id_valid() - check if vlan id is in valid batman-adv encoding + * @vid: the VLAN identifier + * + * Return: true when either no vlan is set or if VLAN is in correct range, + * false otherwise + */ +static bool batadv_vlan_id_valid(unsigned short vid) +{ + unsigned short non_vlan = vid & ~(BATADV_VLAN_HAS_TAG | VLAN_VID_MASK); + + if (vid == 0) + return true; + + if (!(vid & BATADV_VLAN_HAS_TAG)) + return false; + + if (non_vlan) + return false; + + return true; +} + /** * batadv_orig_node_vlan_new() - search and possibly create an orig_node_vlan * object @@ -149,6 +173,9 @@ batadv_orig_node_vlan_new(struct batadv_orig_node *orig_node, { struct batadv_orig_node_vlan *vlan; + if (!batadv_vlan_id_valid(vid)) + return NULL; + spin_lock_bh(&orig_node->vlan_list_lock); /* first look if an object for this vid already exists */ -- linux integration

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commits June 2024