B.A.T.M.A.N July 2012

b.a.t.m.a.n@lists.open-mesh.org

25 participants
46 discussions

Re: [B.A.T.M.A.N.] [Babel-users] Question about Babel
by Catherine Lowenstein 07 Jul '12

07 Jul '12

> Look, Catherine, please try being a little bit more autonomous. > > Take the batman-adv distribution, look at the list of main authors, and > drop them a friendly note. I'm sure they'll be glad to chat with you. I already sent them the mail using Cc. But I am still missing the company name that you seem to know. > Please do not contact me any further on this subject. And please do not > copy the mailing lists with your reply. First you want to get paid for your information and now you stop without sending me your price model? Sincerely, I am, Catherine Lowenstein

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Re: [B.A.T.M.A.N.] [Babel-users] Question about Babel
by Catherine Lowenstein 07 Jul '12

07 Jul '12

Juliusz Chroboczek <jch(a)pps.jussieu.fr> wrote: > >> Sorry, I know the people but I don't know the details about their > >> business. Why don't you get in touch with the people on the BATMAN > >> list instead? > > > I told you that I searched for the company but only found the community > > site open-mesh.org that doesn't seem to be related to any company. You > > said that you know about their commercial development/company. > > Yeah, they told me about it over beer. > > > Why don't you want to give me contact information of these people when > > you know the people behind the company? > > Of course, I could spend some time searching for it for you. Are you > willing to pay me a consulting fee for my time? Depends on the price. I am not against paying for it, but I cannot just agree to this without knowing the exact terms of this contract. Sincerely, I am, Catherine Lowenstein

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Re: [B.A.T.M.A.N.] Question about Babel
by Catherine Lowenstein 07 Jul '12

07 Jul '12

Juliusz wrote: > Sorry, I know the people but I don't know the details about their > business. Why don't you get in touch with the people on the BATMAN list > instead? I told you that I searched for the company but only found the community site open-mesh.org that doesn't seem to be related to any company. You said that you know about their commercial development/company. So I tried to contact you to get more information where I can find the contact information of the BATMAN company. Why don't you want to give me contact information of these people when you know the people behind the company? Sincerely, I am, Catherine Lowenstein

1 0

[B.A.T.M.A.N.] BLAII + gw_mode, DHCP sometimes gets dropped
by Guido Iribarren 06 Jul '12

06 Jul '12

Hello there again, I have observed a problem since updating to 2012.2 and enabled BLAII I'm compiling logs to understand what's happening, but as always, reading logs only gets me more lost :( So here i am again begging for help the setup is the same I described in yesterday's attachment, but what's not pictured is an ethernet cable between colmena-casa and f8d11504758. f8d11504758 is the only router that connects to the internet (through WAN cable), and it's also the only one that has dnsmasq running and gw_mode=server. All the other nodes have gw_mode=client All of the nodes have bridge_loop_avoidance=1 (even though there are no other utp connections, so it could in fact be enabled only on colmena-casa and f8d11504758) with this setup, dhcp requests from the mesh sometimes get "lost", either they don't reach f8d11504758 or the reply doesn't get out this didn't happen with batman 2012.1 , setup as indicated by the BLAI wiki page (batctl if add br-lan) furthermore, with batman 2012.2 , BLAII activated, but gw_mode=off in all nodes, DHCP also works fine. So, a few questions arise: is it a problem to activate bridge_loop_avoidance=1 in all nodes, regardless of the fact that they "need" it or not? (that is, it is activated on nodes that don't have any ethernet cables connected and couldn't possibly create a bridge loop) would it make a difference, if I add br-lan to bat0 (batctl if add br-lan) the way I used to do with batman 2012.1 ? any other thoughts or ideas? thanks as always! Gui

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[B.A.T.M.A.N.] [PATCH] batman-adv: generalise size in bitarray API
by Antonio Quartulli 05 Jul '12

05 Jul '12

The current bitarray library assumes that the windows are always BATADV_TQ_LOCAL_WINDOW_SIZE long. If we want to reuse the same library in other contexts we need to make it general enough. This patch enables such the bitarray library to handle windows of any size. Signed-off-by: Antonio Quartulli <ordex(a)autistici.org> --- bat_iv_ogm.c | 9 ++++++--- bitarray.c | 31 ++++++++++++++++--------------- bitarray.h | 11 ++++++----- routing.c | 9 ++++++--- 4 files changed, 34 insertions(+), 26 deletions(-) diff --git a/bat_iv_ogm.c b/bat_iv_ogm.c index e877af8..f8e4c0e 100644 --- a/bat_iv_ogm.c +++ b/bat_iv_ogm.c @@ -910,6 +910,7 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr, int set_mark, ret = -1; uint32_t seqno = ntohl(batadv_ogm_packet->seqno); uint8_t *neigh_addr; + int win_size = BATADV_TQ_LOCAL_WINDOW_SIZE; orig_node = batadv_get_orig_node(bat_priv, batadv_ogm_packet->orig); if (!orig_node) @@ -930,7 +931,7 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr, is_duplicate |= batadv_test_bit(tmp_neigh_node->real_bits, orig_node->last_real_seqno, - seqno); + seqno, win_size); neigh_addr = tmp_neigh_node->addr; if (batadv_compare_eth(neigh_addr, ethhdr->h_source) && @@ -942,7 +943,8 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr, /* if the window moved, set the update flag. */ need_update |= batadv_bit_get_packet(bat_priv, tmp_neigh_node->real_bits, - seq_diff, set_mark); + seq_diff, set_mark, + win_size); tmp_neigh_node->real_packet_count = bitmap_weight(tmp_neigh_node->real_bits, @@ -1093,7 +1095,8 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr, word = &(orig_neigh_node->bcast_own[offset]); bit_pos = if_incoming_seqno - 2; bit_pos -= ntohl(batadv_ogm_packet->seqno); - batadv_set_bit(word, bit_pos); + batadv_set_bit(word, bit_pos, + BATADV_TQ_LOCAL_WINDOW_SIZE); weight = &orig_neigh_node->bcast_own_sum[if_num]; *weight = bitmap_weight(word, BATADV_TQ_LOCAL_WINDOW_SIZE); diff --git a/bitarray.c b/bitarray.c index aea174c..b46a81e 100644 --- a/bitarray.c +++ b/bitarray.c @@ -23,12 +23,13 @@ #include <linux/bitops.h> /* shift the packet array by n places. */ -static void batadv_bitmap_shift_left(unsigned long *seq_bits, int32_t n) +static void batadv_bitmap_shift_left(unsigned long *seq_bits, int32_t n, + int size) { - if (n <= 0 || n >= BATADV_TQ_LOCAL_WINDOW_SIZE) + if (n <= 0 || n >= size) return; - bitmap_shift_left(seq_bits, seq_bits, n, BATADV_TQ_LOCAL_WINDOW_SIZE); + bitmap_shift_left(seq_bits, seq_bits, n, size); } @@ -39,39 +40,39 @@ static void batadv_bitmap_shift_left(unsigned long *seq_bits, int32_t n) * 0 if the window was not moved/shifted. */ int batadv_bit_get_packet(void *priv, unsigned long *seq_bits, - int32_t seq_num_diff, int set_mark) + int32_t seq_num_diff, int set_mark, int size) { struct batadv_priv *bat_priv = priv; /* sequence number is slightly older. We already got a sequence number * higher than this one, so we just mark it. */ - if (seq_num_diff <= 0 && seq_num_diff > -BATADV_TQ_LOCAL_WINDOW_SIZE) { + if (seq_num_diff <= 0 && seq_num_diff > -size) { if (set_mark) - batadv_set_bit(seq_bits, -seq_num_diff); + batadv_set_bit(seq_bits, -seq_num_diff, size); return 0; } /* sequence number is slightly newer, so we shift the window and * set the mark if required */ - if (seq_num_diff > 0 && seq_num_diff < BATADV_TQ_LOCAL_WINDOW_SIZE) { - batadv_bitmap_shift_left(seq_bits, seq_num_diff); + if (seq_num_diff > 0 && seq_num_diff < size) { + batadv_bitmap_shift_left(seq_bits, seq_num_diff, size); if (set_mark) - batadv_set_bit(seq_bits, 0); + batadv_set_bit(seq_bits, 0, size); return 1; } /* sequence number is much newer, probably missed a lot of packets */ - if (seq_num_diff >= BATADV_TQ_LOCAL_WINDOW_SIZE && + if (seq_num_diff >= size && seq_num_diff < BATADV_EXPECTED_SEQNO_RANGE) { batadv_dbg(BATADV_DBG_BATMAN, bat_priv, "We missed a lot of packets (%i) !\n", seq_num_diff - 1); - bitmap_zero(seq_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); + bitmap_zero(seq_bits, size); if (set_mark) - batadv_set_bit(seq_bits, 0); + batadv_set_bit(seq_bits, 0, size); return 1; } @@ -80,15 +81,15 @@ int batadv_bit_get_packet(void *priv, unsigned long *seq_bits, * packet should be dropped without calling this function if the * seqno window is protected. */ - if (seq_num_diff <= -BATADV_TQ_LOCAL_WINDOW_SIZE || + if (seq_num_diff <= -size || seq_num_diff >= BATADV_EXPECTED_SEQNO_RANGE) { batadv_dbg(BATADV_DBG_BATMAN, bat_priv, "Other host probably restarted!\n"); - bitmap_zero(seq_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); + bitmap_zero(seq_bits, size); if (set_mark) - batadv_set_bit(seq_bits, 0); + batadv_set_bit(seq_bits, 0, size); return 1; } diff --git a/bitarray.h b/bitarray.h index a081ce1..830d5bd 100644 --- a/bitarray.h +++ b/bitarray.h @@ -24,22 +24,23 @@ * and curr_seqno is within range of last_seqno */ static inline int batadv_test_bit(const unsigned long *seq_bits, - uint32_t last_seqno, uint32_t curr_seqno) + uint32_t last_seqno, uint32_t curr_seqno, + int size) { int32_t diff; diff = last_seqno - curr_seqno; - if (diff < 0 || diff >= BATADV_TQ_LOCAL_WINDOW_SIZE) + if (diff < 0 || diff >= size) return 0; else return test_bit(diff, seq_bits); } /* turn corresponding bit on, so we can remember that we got the packet */ -static inline void batadv_set_bit(unsigned long *seq_bits, int32_t n) +static inline void batadv_set_bit(unsigned long *seq_bits, int32_t n, int size) { /* if too old, just drop it */ - if (n < 0 || n >= BATADV_TQ_LOCAL_WINDOW_SIZE) + if (n < 0 || n >= size) return; set_bit(n, seq_bits); /* turn the position on */ @@ -49,6 +50,6 @@ static inline void batadv_set_bit(unsigned long *seq_bits, int32_t n) * new, 0 if old */ int batadv_bit_get_packet(void *priv, unsigned long *seq_bits, - int32_t seq_num_diff, int set_mark); + int32_t seq_num_diff, int set_mark, int size); #endif /* _NET_BATMAN_ADV_BITARRAY_H_ */ diff --git a/routing.c b/routing.c index bc2b88b..ec68df0 100644 --- a/routing.c +++ b/routing.c @@ -53,7 +53,8 @@ void batadv_slide_own_bcast_window(struct batadv_hard_iface *hard_iface) word_index = hard_iface->if_num * BATADV_NUM_WORDS; word = &(orig_node->bcast_own[word_index]); - batadv_bit_get_packet(bat_priv, word, 1, 0); + batadv_bit_get_packet(bat_priv, word, 1, 0, + BATADV_TQ_LOCAL_WINDOW_SIZE); w = &orig_node->bcast_own_sum[hard_iface->if_num]; *w = bitmap_weight(word, BATADV_TQ_LOCAL_WINDOW_SIZE); spin_unlock_bh(&orig_node->ogm_cnt_lock); @@ -1118,7 +1119,8 @@ int batadv_recv_bcast_packet(struct sk_buff *skb, /* check whether the packet is a duplicate */ if (batadv_test_bit(orig_node->bcast_bits, orig_node->last_bcast_seqno, - ntohl(bcast_packet->seqno))) + ntohl(bcast_packet->seqno), + BATADV_TQ_LOCAL_WINDOW_SIZE)) goto spin_unlock; seq_diff = ntohl(bcast_packet->seqno) - orig_node->last_bcast_seqno; @@ -1131,7 +1133,8 @@ int batadv_recv_bcast_packet(struct sk_buff *skb, /* mark broadcast in flood history, update window position * if required. */ - if (batadv_bit_get_packet(bat_priv, orig_node->bcast_bits, seq_diff, 1)) + if (batadv_bit_get_packet(bat_priv, orig_node->bcast_bits, seq_diff, 1, + BATADV_TQ_LOCAL_WINDOW_SIZE)) orig_node->last_bcast_seqno = ntohl(bcast_packet->seqno); spin_unlock_bh(&orig_node->bcast_seqno_lock); -- 1.7.9.4

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[B.A.T.M.A.N.] [PATCH] batman-adv: check batadv_orig_hash_add_if() return code
by Simon Wunderlich 05 Jul '12

05 Jul '12

If this call fails, some of the orig_nodes spaces may have been resized for the increased number of interface, and some may not. If we would just continue with the larger number of interfaces, this would lead to access to not allocated memory later. We better check the return code, and don't add the interface if no memory is available. OTOH, keeping some of the orig_nodes with too much memory allocated should hurt no one (except for a few too many bytes allocated). Signed-off-by: Simon Wunderlich <siwu(a)hrz.tu-chemnitz.de> --- hard-interface.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/hard-interface.c b/hard-interface.c index 282bf6e..2d7f4f2 100644 --- a/hard-interface.c +++ b/hard-interface.c @@ -313,7 +313,12 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface, hard_iface->if_num = bat_priv->num_ifaces; bat_priv->num_ifaces++; hard_iface->if_status = BATADV_IF_INACTIVE; - batadv_orig_hash_add_if(hard_iface, bat_priv->num_ifaces); + ret = batadv_orig_hash_add_if(hard_iface, bat_priv->num_ifaces); + if (ret < 0) { + bat_priv->bat_algo_ops->bat_iface_disable(hard_iface); + bat_priv->num_ifaces--; + goto err_dev; + } hard_iface->batman_adv_ptype.type = ethertype; hard_iface->batman_adv_ptype.func = batadv_batman_skb_recv; -- 1.7.10

2 1

[B.A.T.M.A.N.] [PATCH] batman-adv: fix typos in comments
by Antonio Quartulli 05 Jul '12

05 Jul '12

the word millisecond is misspelled in several comments. This patch fixes it. Signed-off-by: Antonio Quartulli <ordex(a)autistici.org> --- main.h | 8 ++++---- vis.h | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/main.h b/main.h index 6dca9c4..0c6903c 100644 --- a/main.h +++ b/main.h @@ -41,13 +41,13 @@ * -> TODO: check influence on BATADV_TQ_LOCAL_WINDOW_SIZE */ #define BATADV_PURGE_TIMEOUT 200000 /* 200 seconds */ -#define BATADV_TT_LOCAL_TIMEOUT 3600000 /* in miliseconds */ -#define BATADV_TT_CLIENT_ROAM_TIMEOUT 600000 /* in miliseconds */ +#define BATADV_TT_LOCAL_TIMEOUT 3600000 /* in milliseconds */ +#define BATADV_TT_CLIENT_ROAM_TIMEOUT 600000 /* in milliseconds */ /* sliding packet range of received originator messages in sequence numbers * (should be a multiple of our word size) */ #define BATADV_TQ_LOCAL_WINDOW_SIZE 64 -/* miliseconds we have to keep pending tt_req */ +/* milliseconds we have to keep pending tt_req */ #define BATADV_TT_REQUEST_TIMEOUT 3000 #define BATADV_TQ_GLOBAL_WINDOW_SIZE 5 @@ -59,7 +59,7 @@ #define BATADV_TT_OGM_APPEND_MAX 3 /* Time in which a client can roam at most ROAMING_MAX_COUNT times in - * miliseconds + * milliseconds */ #define BATADV_ROAMING_MAX_TIME 20000 #define BATADV_ROAMING_MAX_COUNT 5 diff --git a/vis.h b/vis.h index 84e716e..873282f 100644 --- a/vis.h +++ b/vis.h @@ -20,7 +20,7 @@ #ifndef _NET_BATMAN_ADV_VIS_H_ #define _NET_BATMAN_ADV_VIS_H_ -/* timeout of vis packets in miliseconds */ +/* timeout of vis packets in milliseconds */ #define BATADV_VIS_TIMEOUT 200000 int batadv_vis_seq_print_text(struct seq_file *seq, void *offset); -- 1.7.9.4

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[B.A.T.M.A.N.] [PATCHv4 0/3] new feature: Speedy Join 2012-07-01b
by Antonio Quartulli 05 Jul '12

05 Jul '12

Hello people, this is the fourth version of the Speedy Join patchset below Changes history: v1 -> v2: - indentation and style has been fixed taking into consideration Sven's suggestions - Old patch 4 has been removed. TT flags do not really need to be carry along with the tt_entry in a roaming_adv packet. (at least this is not needed for the purpose of this feature). A roaming client will be marked as ROAM on the new mesh node and therefore it will be already purged if nobody claims it v2 -> v3: - patch 1 and 2 have been merged in 1/3. Changes were all related to the new refcounting mechanism. ..orig_entry_find() function has been improved as well as ..orig_entry_add() (it does internally check if the orig_entry already exists or not) and ..has_orig() (now it does use ..orig_entry_find()). - patch 2/3 has been modified to take into consideration the change above - temp timeout changed to an absolute value instead of being computed as product of the local orig_interval times a constant factor. v3 -> v4: - fixed some minor style issues - renamed batadv_orig_list_entry_free_ref() to batadv_tt_orig_list_entry_free_ref() - improved comment in patch 2/3 Thank you, Antonio Antonio Quartulli (3): batman-adv: add reference counting for type batadv_tt_orig_list_entry batman-adv: detect not yet announced clients batman-adv: change interface_rx to get orig node main.h | 1 + packet.h | 1 + routing.c | 10 +-- soft-interface.c | 6 +- soft-interface.h | 5 +- translation-table.c | 194 +++++++++++++++++++++++++++++++++++++-------------- translation-table.h | 4 +- types.h | 2 + 8 files changed, 163 insertions(+), 60 deletions(-) -- 1.7.9.4

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[B.A.T.M.A.N.] [PATCH] batctl: more detailed error messages when file can't be opened
by Marek Lindner 05 Jul '12

05 Jul '12

Signed-off-by: Marek Lindner <lindner_marek(a)yahoo.de> --- functions.c | 75 +++++++++++++++++++++++++++++------------------------------ sys.c | 11 ++++++++ 2 files changed, 48 insertions(+), 38 deletions(-) diff --git a/functions.c b/functions.c index d08c7a0..c78e408 100644 --- a/functions.c +++ b/functions.c @@ -36,15 +36,18 @@ #include "functions.h" #include "bat-hosts.h" #include "sys.h" +#include "debug.h" static struct timeval start_time; static char *host_name; char *line_ptr = NULL; -const char *sysfs_compile_out_param[] = { +const char *fs_compile_out_param[] = { SYS_LOG, SYS_LOG_LEVEL, batctl_settings[BATCTL_SETTINGS_BLA].sysfs_name, + batctl_debug_tables[BATCTL_TABLE_BLA_CLAIMS].debugfs_name, + batctl_debug_tables[BATCTL_TABLE_BLA_BACKBONES].debugfs_name, NULL, }; @@ -114,23 +117,42 @@ int file_exists(const char *fpath) return stat(fpath, &st) == 0; } -static int check_sys_dir(char *dir) +static void file_open_problem_dbg(char *dir, char *fname, char *full_path) { + const char **ptr; struct stat st; - if (stat("/sys/", &st) != 0) { - printf("Error - the folder '/sys/' was not found on the system\n"); - printf("Please make sure that the sys filesystem is properly mounted\n"); - return EXIT_FAILURE; + if (strstr(dir, "/sys/")) { + if (stat("/sys/", &st) != 0) { + printf("Error - the folder '/sys/' was not found on the system\n"); + printf("Please make sure that the sys filesystem is properly mounted\n"); + return; + } + } + + if (!file_exists(module_ver_path)) { + printf("Error - batman-adv module has not been loaded\n"); + return; + } + + if (!file_exists(dir)) { + printf("Error - mesh has not been enabled yet\n"); + printf("Activate your mesh by adding interfaces to batman-adv\n"); + return; } - if (stat(dir, &st) == 0) - return EXIT_SUCCESS; + for (ptr = fs_compile_out_param; *ptr; ptr++) { + if (strcmp(*ptr, fname) != 0) + continue; + + break; + } - printf("Error - the folder '%s' was not found within the sys filesystem\n", dir); - printf("Please make sure that the batman-adv kernel module is loaded and\n"); - printf("that you have activated your mesh by adding interfaces to batman-adv\n"); - return EXIT_FAILURE; + printf("Error - can't open file '%s': %s\n", full_path, strerror(errno)); + if (*ptr) { + printf("The option you called seems not to be compiled into your batman-adv kernel module.\n"); + printf("Consult the README if you wish to learn more about compiling options into batman-adv.\n"); + } } int read_file(char *dir, char *fname, int read_opt, @@ -140,7 +162,6 @@ int read_file(char *dir, char *fname, int read_opt, struct bat_host *bat_host; int res = EXIT_FAILURE; float last_seen; - const char **ptr; char full_path[500], *buff_ptr, *space_ptr, extra_char; size_t len = 0; FILE *fp = NULL; @@ -148,11 +169,6 @@ int read_file(char *dir, char *fname, int read_opt, if (read_opt & USE_BAT_HOSTS) bat_hosts_init(read_opt); - if (strstr(dir, "/sys/")) { - if (check_sys_dir(dir) != EXIT_SUCCESS) - goto out; - } - strncpy(full_path, dir, strlen(dir)); full_path[strlen(dir)] = '\0'; strncat(full_path, fname, sizeof(full_path) - strlen(full_path)); @@ -161,20 +177,8 @@ open: fp = fopen(full_path, "r"); if (!fp) { - if (!(read_opt & SILENCE_ERRORS)) { - for (ptr = sysfs_compile_out_param; *ptr; ptr++) { - if (strcmp(*ptr, fname) != 0) - continue; - - break; - } - - printf("Error - can't open file '%s': %s\n", full_path, strerror(errno)); - if (*ptr) { - printf("The option you called seems not to be compiled into your batman-adv kernel module.\n"); - printf("Consult the README if you wish to learn more about compiling options into batman-adv.\n"); - } - } + if (!(read_opt & SILENCE_ERRORS)) + file_open_problem_dbg(dir, fname, full_path); goto out; } @@ -285,11 +289,6 @@ int write_file(char *dir, char *fname, char *arg1, char *arg2) char full_path[500]; ssize_t write_len; - if (strstr(dir, "/sys/")) { - if (check_sys_dir(dir) != EXIT_SUCCESS) - goto out; - } - strncpy(full_path, dir, strlen(dir)); full_path[strlen(dir)] = '\0'; strncat(full_path, fname, sizeof(full_path) - strlen(full_path)); @@ -297,7 +296,7 @@ int write_file(char *dir, char *fname, char *arg1, char *arg2) fd = open(full_path, O_WRONLY); if (fd < 0) { - printf("Error - can't open file '%s': %s\n", full_path, strerror(errno)); + file_open_problem_dbg(dir, fname, full_path); goto out; } diff --git a/sys.c b/sys.c index 5b728a8..9787875 100644 --- a/sys.c +++ b/sys.c @@ -109,6 +109,11 @@ static int print_interfaces(char *mesh_iface) char *path_buff; int res; + if (!file_exists(module_ver_path)) { + printf("Error - batman-adv module has not been loaded\n"); + goto err; + } + path_buff = malloc(PATH_BUFF_LEN); if (!path_buff) { printf("Error - could not allocate path buffer: out of memory ?\n"); @@ -191,6 +196,12 @@ int interface(char *mesh_iface, int argc, char **argv) goto err; } + if (argc == 2) { + printf("Error - missing interface name(s) after '%s'\n", argv[1]); + interface_usage(); + goto err; + } + path_buff = malloc(PATH_BUFF_LEN); if (!path_buff) { printf("Error - could not allocate path buffer: out of memory ?\n"); -- 1.7.9.1

1 1

[B.A.T.M.A.N.] [PATCH] batman-adv: remove a misleading comment
by Jonathan Corbet 05 Jul '12

05 Jul '12

As much as I'm happy to see LWN links sprinkled through the kernel by the dozen, this one in particular reflects a very old state of reality; the associated comment is now incorrect. So just delete it. Signed-off-by: Jonathan Corbet <corbet(a)lwn.net> diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c index 083a299..c91f35b 100644 --- a/net/batman-adv/main.c +++ b/net/batman-adv/main.c @@ -57,9 +57,6 @@ static int __init batman_init(void) recv_handler_init(); bat_iv_init(); - - /* the name should not be longer than 10 chars - see - * http://lwn.net/Articles/23634/ */ bat_event_workqueue = create_singlethread_workqueue("bat_events"); if (!bat_event_workqueue)

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B.A.T.M.A.N July 2012