Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Sysfs attributes of bridge ports | |
3 | * Linux ethernet bridge | |
4 | * | |
5 | * Authors: | |
6 | * Stephen Hemminger <shemminger@osdl.org> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License | |
10 | * as published by the Free Software Foundation; either version | |
11 | * 2 of the License, or (at your option) any later version. | |
12 | */ | |
13 | ||
4fc268d2 | 14 | #include <linux/capability.h> |
1da177e4 LT |
15 | #include <linux/kernel.h> |
16 | #include <linux/netdevice.h> | |
17 | #include <linux/if_bridge.h> | |
18 | #include <linux/rtnetlink.h> | |
19 | #include <linux/spinlock.h> | |
20 | #include <linux/times.h> | |
21 | ||
22 | #include "br_private.h" | |
23 | ||
43cb76d9 | 24 | #define to_dev(obj) container_of(obj, struct device, kobj) |
524ad0a7 | 25 | #define to_bridge(cd) ((struct net_bridge *)netdev_priv(to_net_dev(cd))) |
1da177e4 LT |
26 | |
27 | /* | |
28 | * Common code for storing bridge parameters. | |
29 | */ | |
43cb76d9 | 30 | static ssize_t store_bridge_parm(struct device *d, |
1da177e4 | 31 | const char *buf, size_t len, |
8d4698f7 | 32 | int (*set)(struct net_bridge *, unsigned long)) |
1da177e4 | 33 | { |
43cb76d9 | 34 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
35 | char *endp; |
36 | unsigned long val; | |
8d4698f7 | 37 | int err; |
1da177e4 LT |
38 | |
39 | if (!capable(CAP_NET_ADMIN)) | |
40 | return -EPERM; | |
41 | ||
42 | val = simple_strtoul(buf, &endp, 0); | |
43 | if (endp == buf) | |
44 | return -EINVAL; | |
45 | ||
46 | spin_lock_bh(&br->lock); | |
8d4698f7 | 47 | err = (*set)(br, val); |
1da177e4 | 48 | spin_unlock_bh(&br->lock); |
8d4698f7 | 49 | return err ? err : len; |
1da177e4 LT |
50 | } |
51 | ||
52 | ||
43cb76d9 GKH |
53 | static ssize_t show_forward_delay(struct device *d, |
54 | struct device_attribute *attr, char *buf) | |
1da177e4 | 55 | { |
43cb76d9 | 56 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
57 | return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->forward_delay)); |
58 | } | |
59 | ||
8d4698f7 | 60 | static int set_forward_delay(struct net_bridge *br, unsigned long val) |
1da177e4 LT |
61 | { |
62 | unsigned long delay = clock_t_to_jiffies(val); | |
63 | br->forward_delay = delay; | |
64 | if (br_is_root_bridge(br)) | |
65 | br->bridge_forward_delay = delay; | |
8d4698f7 | 66 | return 0; |
1da177e4 LT |
67 | } |
68 | ||
43cb76d9 GKH |
69 | static ssize_t store_forward_delay(struct device *d, |
70 | struct device_attribute *attr, | |
71 | const char *buf, size_t len) | |
1da177e4 | 72 | { |
43cb76d9 | 73 | return store_bridge_parm(d, buf, len, set_forward_delay); |
1da177e4 | 74 | } |
43cb76d9 GKH |
75 | static DEVICE_ATTR(forward_delay, S_IRUGO | S_IWUSR, |
76 | show_forward_delay, store_forward_delay); | |
1da177e4 | 77 | |
43cb76d9 GKH |
78 | static ssize_t show_hello_time(struct device *d, struct device_attribute *attr, |
79 | char *buf) | |
1da177e4 LT |
80 | { |
81 | return sprintf(buf, "%lu\n", | |
43cb76d9 | 82 | jiffies_to_clock_t(to_bridge(d)->hello_time)); |
1da177e4 LT |
83 | } |
84 | ||
8d4698f7 | 85 | static int set_hello_time(struct net_bridge *br, unsigned long val) |
1da177e4 LT |
86 | { |
87 | unsigned long t = clock_t_to_jiffies(val); | |
8d4698f7 SH |
88 | |
89 | if (t < HZ) | |
90 | return -EINVAL; | |
91 | ||
1da177e4 LT |
92 | br->hello_time = t; |
93 | if (br_is_root_bridge(br)) | |
94 | br->bridge_hello_time = t; | |
8d4698f7 | 95 | return 0; |
1da177e4 LT |
96 | } |
97 | ||
43cb76d9 GKH |
98 | static ssize_t store_hello_time(struct device *d, |
99 | struct device_attribute *attr, const char *buf, | |
1da177e4 LT |
100 | size_t len) |
101 | { | |
43cb76d9 | 102 | return store_bridge_parm(d, buf, len, set_hello_time); |
1da177e4 | 103 | } |
43cb76d9 GKH |
104 | static DEVICE_ATTR(hello_time, S_IRUGO | S_IWUSR, show_hello_time, |
105 | store_hello_time); | |
1da177e4 | 106 | |
43cb76d9 GKH |
107 | static ssize_t show_max_age(struct device *d, struct device_attribute *attr, |
108 | char *buf) | |
1da177e4 LT |
109 | { |
110 | return sprintf(buf, "%lu\n", | |
43cb76d9 | 111 | jiffies_to_clock_t(to_bridge(d)->max_age)); |
1da177e4 LT |
112 | } |
113 | ||
8d4698f7 | 114 | static int set_max_age(struct net_bridge *br, unsigned long val) |
1da177e4 LT |
115 | { |
116 | unsigned long t = clock_t_to_jiffies(val); | |
117 | br->max_age = t; | |
118 | if (br_is_root_bridge(br)) | |
119 | br->bridge_max_age = t; | |
8d4698f7 | 120 | return 0; |
1da177e4 LT |
121 | } |
122 | ||
43cb76d9 GKH |
123 | static ssize_t store_max_age(struct device *d, struct device_attribute *attr, |
124 | const char *buf, size_t len) | |
1da177e4 | 125 | { |
43cb76d9 | 126 | return store_bridge_parm(d, buf, len, set_max_age); |
1da177e4 | 127 | } |
43cb76d9 | 128 | static DEVICE_ATTR(max_age, S_IRUGO | S_IWUSR, show_max_age, store_max_age); |
1da177e4 | 129 | |
43cb76d9 GKH |
130 | static ssize_t show_ageing_time(struct device *d, |
131 | struct device_attribute *attr, char *buf) | |
1da177e4 | 132 | { |
43cb76d9 | 133 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
134 | return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->ageing_time)); |
135 | } | |
136 | ||
8d4698f7 | 137 | static int set_ageing_time(struct net_bridge *br, unsigned long val) |
1da177e4 LT |
138 | { |
139 | br->ageing_time = clock_t_to_jiffies(val); | |
8d4698f7 | 140 | return 0; |
1da177e4 LT |
141 | } |
142 | ||
43cb76d9 GKH |
143 | static ssize_t store_ageing_time(struct device *d, |
144 | struct device_attribute *attr, | |
145 | const char *buf, size_t len) | |
1da177e4 | 146 | { |
43cb76d9 | 147 | return store_bridge_parm(d, buf, len, set_ageing_time); |
1da177e4 | 148 | } |
43cb76d9 GKH |
149 | static DEVICE_ATTR(ageing_time, S_IRUGO | S_IWUSR, show_ageing_time, |
150 | store_ageing_time); | |
1da177e4 | 151 | |
43cb76d9 GKH |
152 | static ssize_t show_stp_state(struct device *d, |
153 | struct device_attribute *attr, char *buf) | |
1da177e4 | 154 | { |
43cb76d9 | 155 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
156 | return sprintf(buf, "%d\n", br->stp_enabled); |
157 | } | |
158 | ||
1da177e4 | 159 | |
43cb76d9 GKH |
160 | static ssize_t store_stp_state(struct device *d, |
161 | struct device_attribute *attr, const char *buf, | |
162 | size_t len) | |
1da177e4 | 163 | { |
17120889 SH |
164 | struct net_bridge *br = to_bridge(d); |
165 | char *endp; | |
166 | unsigned long val; | |
167 | ||
168 | if (!capable(CAP_NET_ADMIN)) | |
169 | return -EPERM; | |
170 | ||
171 | val = simple_strtoul(buf, &endp, 0); | |
172 | if (endp == buf) | |
173 | return -EINVAL; | |
174 | ||
af38f298 EB |
175 | if (!rtnl_trylock()) |
176 | return restart_syscall(); | |
17120889 SH |
177 | br_stp_set_enabled(br, val); |
178 | rtnl_unlock(); | |
179 | ||
35b426c3 | 180 | return len; |
1da177e4 | 181 | } |
43cb76d9 GKH |
182 | static DEVICE_ATTR(stp_state, S_IRUGO | S_IWUSR, show_stp_state, |
183 | store_stp_state); | |
1da177e4 | 184 | |
43cb76d9 GKH |
185 | static ssize_t show_priority(struct device *d, struct device_attribute *attr, |
186 | char *buf) | |
1da177e4 | 187 | { |
43cb76d9 | 188 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
189 | return sprintf(buf, "%d\n", |
190 | (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1]); | |
191 | } | |
192 | ||
8d4698f7 | 193 | static int set_priority(struct net_bridge *br, unsigned long val) |
1da177e4 LT |
194 | { |
195 | br_stp_set_bridge_priority(br, (u16) val); | |
8d4698f7 | 196 | return 0; |
1da177e4 LT |
197 | } |
198 | ||
43cb76d9 | 199 | static ssize_t store_priority(struct device *d, struct device_attribute *attr, |
1da177e4 LT |
200 | const char *buf, size_t len) |
201 | { | |
43cb76d9 | 202 | return store_bridge_parm(d, buf, len, set_priority); |
1da177e4 | 203 | } |
43cb76d9 | 204 | static DEVICE_ATTR(priority, S_IRUGO | S_IWUSR, show_priority, store_priority); |
1da177e4 | 205 | |
43cb76d9 GKH |
206 | static ssize_t show_root_id(struct device *d, struct device_attribute *attr, |
207 | char *buf) | |
1da177e4 | 208 | { |
43cb76d9 | 209 | return br_show_bridge_id(buf, &to_bridge(d)->designated_root); |
1da177e4 | 210 | } |
43cb76d9 | 211 | static DEVICE_ATTR(root_id, S_IRUGO, show_root_id, NULL); |
1da177e4 | 212 | |
43cb76d9 GKH |
213 | static ssize_t show_bridge_id(struct device *d, struct device_attribute *attr, |
214 | char *buf) | |
1da177e4 | 215 | { |
43cb76d9 | 216 | return br_show_bridge_id(buf, &to_bridge(d)->bridge_id); |
1da177e4 | 217 | } |
43cb76d9 | 218 | static DEVICE_ATTR(bridge_id, S_IRUGO, show_bridge_id, NULL); |
1da177e4 | 219 | |
43cb76d9 GKH |
220 | static ssize_t show_root_port(struct device *d, struct device_attribute *attr, |
221 | char *buf) | |
1da177e4 | 222 | { |
43cb76d9 | 223 | return sprintf(buf, "%d\n", to_bridge(d)->root_port); |
1da177e4 | 224 | } |
43cb76d9 | 225 | static DEVICE_ATTR(root_port, S_IRUGO, show_root_port, NULL); |
1da177e4 | 226 | |
43cb76d9 GKH |
227 | static ssize_t show_root_path_cost(struct device *d, |
228 | struct device_attribute *attr, char *buf) | |
1da177e4 | 229 | { |
43cb76d9 | 230 | return sprintf(buf, "%d\n", to_bridge(d)->root_path_cost); |
1da177e4 | 231 | } |
43cb76d9 | 232 | static DEVICE_ATTR(root_path_cost, S_IRUGO, show_root_path_cost, NULL); |
1da177e4 | 233 | |
43cb76d9 GKH |
234 | static ssize_t show_topology_change(struct device *d, |
235 | struct device_attribute *attr, char *buf) | |
1da177e4 | 236 | { |
43cb76d9 | 237 | return sprintf(buf, "%d\n", to_bridge(d)->topology_change); |
1da177e4 | 238 | } |
43cb76d9 | 239 | static DEVICE_ATTR(topology_change, S_IRUGO, show_topology_change, NULL); |
1da177e4 | 240 | |
43cb76d9 GKH |
241 | static ssize_t show_topology_change_detected(struct device *d, |
242 | struct device_attribute *attr, | |
243 | char *buf) | |
1da177e4 | 244 | { |
43cb76d9 | 245 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
246 | return sprintf(buf, "%d\n", br->topology_change_detected); |
247 | } | |
43cb76d9 GKH |
248 | static DEVICE_ATTR(topology_change_detected, S_IRUGO, |
249 | show_topology_change_detected, NULL); | |
1da177e4 | 250 | |
43cb76d9 GKH |
251 | static ssize_t show_hello_timer(struct device *d, |
252 | struct device_attribute *attr, char *buf) | |
1da177e4 | 253 | { |
43cb76d9 | 254 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
255 | return sprintf(buf, "%ld\n", br_timer_value(&br->hello_timer)); |
256 | } | |
43cb76d9 | 257 | static DEVICE_ATTR(hello_timer, S_IRUGO, show_hello_timer, NULL); |
1da177e4 | 258 | |
43cb76d9 GKH |
259 | static ssize_t show_tcn_timer(struct device *d, struct device_attribute *attr, |
260 | char *buf) | |
1da177e4 | 261 | { |
43cb76d9 | 262 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
263 | return sprintf(buf, "%ld\n", br_timer_value(&br->tcn_timer)); |
264 | } | |
43cb76d9 | 265 | static DEVICE_ATTR(tcn_timer, S_IRUGO, show_tcn_timer, NULL); |
1da177e4 | 266 | |
43cb76d9 GKH |
267 | static ssize_t show_topology_change_timer(struct device *d, |
268 | struct device_attribute *attr, | |
269 | char *buf) | |
1da177e4 | 270 | { |
43cb76d9 | 271 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
272 | return sprintf(buf, "%ld\n", br_timer_value(&br->topology_change_timer)); |
273 | } | |
43cb76d9 GKH |
274 | static DEVICE_ATTR(topology_change_timer, S_IRUGO, show_topology_change_timer, |
275 | NULL); | |
1da177e4 | 276 | |
43cb76d9 GKH |
277 | static ssize_t show_gc_timer(struct device *d, struct device_attribute *attr, |
278 | char *buf) | |
1da177e4 | 279 | { |
43cb76d9 | 280 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
281 | return sprintf(buf, "%ld\n", br_timer_value(&br->gc_timer)); |
282 | } | |
43cb76d9 | 283 | static DEVICE_ATTR(gc_timer, S_IRUGO, show_gc_timer, NULL); |
1da177e4 | 284 | |
43cb76d9 GKH |
285 | static ssize_t show_group_addr(struct device *d, |
286 | struct device_attribute *attr, char *buf) | |
fda93d92 | 287 | { |
43cb76d9 | 288 | struct net_bridge *br = to_bridge(d); |
fda93d92 SH |
289 | return sprintf(buf, "%x:%x:%x:%x:%x:%x\n", |
290 | br->group_addr[0], br->group_addr[1], | |
291 | br->group_addr[2], br->group_addr[3], | |
292 | br->group_addr[4], br->group_addr[5]); | |
293 | } | |
294 | ||
43cb76d9 GKH |
295 | static ssize_t store_group_addr(struct device *d, |
296 | struct device_attribute *attr, | |
297 | const char *buf, size_t len) | |
fda93d92 | 298 | { |
43cb76d9 | 299 | struct net_bridge *br = to_bridge(d); |
fda93d92 SH |
300 | unsigned new_addr[6]; |
301 | int i; | |
302 | ||
303 | if (!capable(CAP_NET_ADMIN)) | |
304 | return -EPERM; | |
305 | ||
306 | if (sscanf(buf, "%x:%x:%x:%x:%x:%x", | |
307 | &new_addr[0], &new_addr[1], &new_addr[2], | |
308 | &new_addr[3], &new_addr[4], &new_addr[5]) != 6) | |
309 | return -EINVAL; | |
310 | ||
311 | /* Must be 01:80:c2:00:00:0X */ | |
312 | for (i = 0; i < 5; i++) | |
313 | if (new_addr[i] != br_group_address[i]) | |
314 | return -EINVAL; | |
315 | ||
316 | if (new_addr[5] & ~0xf) | |
317 | return -EINVAL; | |
318 | ||
f64f9e71 JP |
319 | if (new_addr[5] == 1 || /* 802.3x Pause address */ |
320 | new_addr[5] == 2 || /* 802.3ad Slow protocols */ | |
321 | new_addr[5] == 3) /* 802.1X PAE address */ | |
fda93d92 SH |
322 | return -EINVAL; |
323 | ||
324 | spin_lock_bh(&br->lock); | |
325 | for (i = 0; i < 6; i++) | |
326 | br->group_addr[i] = new_addr[i]; | |
327 | spin_unlock_bh(&br->lock); | |
328 | return len; | |
329 | } | |
330 | ||
43cb76d9 GKH |
331 | static DEVICE_ATTR(group_addr, S_IRUGO | S_IWUSR, |
332 | show_group_addr, store_group_addr); | |
fda93d92 | 333 | |
9cf63747 SH |
334 | static ssize_t store_flush(struct device *d, |
335 | struct device_attribute *attr, | |
336 | const char *buf, size_t len) | |
337 | { | |
338 | struct net_bridge *br = to_bridge(d); | |
339 | ||
340 | if (!capable(CAP_NET_ADMIN)) | |
341 | return -EPERM; | |
342 | ||
343 | br_fdb_flush(br); | |
344 | return len; | |
345 | } | |
346 | static DEVICE_ATTR(flush, S_IWUSR, NULL, store_flush); | |
fda93d92 | 347 | |
0909e117 HX |
348 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
349 | static ssize_t show_multicast_router(struct device *d, | |
350 | struct device_attribute *attr, char *buf) | |
351 | { | |
352 | struct net_bridge *br = to_bridge(d); | |
353 | return sprintf(buf, "%d\n", br->multicast_router); | |
354 | } | |
355 | ||
356 | static ssize_t store_multicast_router(struct device *d, | |
357 | struct device_attribute *attr, | |
358 | const char *buf, size_t len) | |
359 | { | |
360 | return store_bridge_parm(d, buf, len, br_multicast_set_router); | |
361 | } | |
362 | static DEVICE_ATTR(multicast_router, S_IRUGO | S_IWUSR, show_multicast_router, | |
363 | store_multicast_router); | |
364 | #endif | |
365 | ||
1da177e4 | 366 | static struct attribute *bridge_attrs[] = { |
43cb76d9 GKH |
367 | &dev_attr_forward_delay.attr, |
368 | &dev_attr_hello_time.attr, | |
369 | &dev_attr_max_age.attr, | |
370 | &dev_attr_ageing_time.attr, | |
371 | &dev_attr_stp_state.attr, | |
372 | &dev_attr_priority.attr, | |
373 | &dev_attr_bridge_id.attr, | |
374 | &dev_attr_root_id.attr, | |
375 | &dev_attr_root_path_cost.attr, | |
376 | &dev_attr_root_port.attr, | |
377 | &dev_attr_topology_change.attr, | |
378 | &dev_attr_topology_change_detected.attr, | |
379 | &dev_attr_hello_timer.attr, | |
380 | &dev_attr_tcn_timer.attr, | |
381 | &dev_attr_topology_change_timer.attr, | |
382 | &dev_attr_gc_timer.attr, | |
383 | &dev_attr_group_addr.attr, | |
9cf63747 | 384 | &dev_attr_flush.attr, |
0909e117 HX |
385 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
386 | &dev_attr_multicast_router.attr, | |
387 | #endif | |
1da177e4 LT |
388 | NULL |
389 | }; | |
390 | ||
391 | static struct attribute_group bridge_group = { | |
392 | .name = SYSFS_BRIDGE_ATTR, | |
393 | .attrs = bridge_attrs, | |
394 | }; | |
395 | ||
396 | /* | |
397 | * Export the forwarding information table as a binary file | |
398 | * The records are struct __fdb_entry. | |
399 | * | |
400 | * Returns the number of bytes read. | |
401 | */ | |
91a69029 ZR |
402 | static ssize_t brforward_read(struct kobject *kobj, |
403 | struct bin_attribute *bin_attr, | |
404 | char *buf, loff_t off, size_t count) | |
1da177e4 | 405 | { |
43cb76d9 GKH |
406 | struct device *dev = to_dev(kobj); |
407 | struct net_bridge *br = to_bridge(dev); | |
1da177e4 LT |
408 | int n; |
409 | ||
410 | /* must read whole records */ | |
411 | if (off % sizeof(struct __fdb_entry) != 0) | |
412 | return -EINVAL; | |
413 | ||
9d6f229f | 414 | n = br_fdb_fillbuf(br, buf, |
1da177e4 LT |
415 | count / sizeof(struct __fdb_entry), |
416 | off / sizeof(struct __fdb_entry)); | |
417 | ||
418 | if (n > 0) | |
419 | n *= sizeof(struct __fdb_entry); | |
9d6f229f | 420 | |
1da177e4 LT |
421 | return n; |
422 | } | |
423 | ||
424 | static struct bin_attribute bridge_forward = { | |
425 | .attr = { .name = SYSFS_BRIDGE_FDB, | |
7b595756 | 426 | .mode = S_IRUGO, }, |
1da177e4 LT |
427 | .read = brforward_read, |
428 | }; | |
429 | ||
430 | /* | |
431 | * Add entries in sysfs onto the existing network class device | |
432 | * for the bridge. | |
433 | * Adds a attribute group "bridge" containing tuning parameters. | |
434 | * Binary attribute containing the forward table | |
435 | * Sub directory to hold links to interfaces. | |
436 | * | |
437 | * Note: the ifobj exists only to be a subdirectory | |
438 | * to hold links. The ifobj exists in same data structure | |
439 | * as it's parent the bridge so reference counting works. | |
440 | */ | |
441 | int br_sysfs_addbr(struct net_device *dev) | |
442 | { | |
43cb76d9 | 443 | struct kobject *brobj = &dev->dev.kobj; |
1da177e4 LT |
444 | struct net_bridge *br = netdev_priv(dev); |
445 | int err; | |
446 | ||
447 | err = sysfs_create_group(brobj, &bridge_group); | |
448 | if (err) { | |
449 | pr_info("%s: can't create group %s/%s\n", | |
0dc47877 | 450 | __func__, dev->name, bridge_group.name); |
1da177e4 LT |
451 | goto out1; |
452 | } | |
453 | ||
454 | err = sysfs_create_bin_file(brobj, &bridge_forward); | |
455 | if (err) { | |
1842c4be | 456 | pr_info("%s: can't create attribute file %s/%s\n", |
0dc47877 | 457 | __func__, dev->name, bridge_forward.attr.name); |
1da177e4 LT |
458 | goto out2; |
459 | } | |
460 | ||
43b98c4a GKH |
461 | br->ifobj = kobject_create_and_add(SYSFS_BRIDGE_PORT_SUBDIR, brobj); |
462 | if (!br->ifobj) { | |
1da177e4 | 463 | pr_info("%s: can't add kobject (directory) %s/%s\n", |
0dc47877 | 464 | __func__, dev->name, SYSFS_BRIDGE_PORT_SUBDIR); |
1da177e4 LT |
465 | goto out3; |
466 | } | |
467 | return 0; | |
468 | out3: | |
43cb76d9 | 469 | sysfs_remove_bin_file(&dev->dev.kobj, &bridge_forward); |
1da177e4 | 470 | out2: |
43cb76d9 | 471 | sysfs_remove_group(&dev->dev.kobj, &bridge_group); |
1da177e4 LT |
472 | out1: |
473 | return err; | |
474 | ||
475 | } | |
476 | ||
477 | void br_sysfs_delbr(struct net_device *dev) | |
478 | { | |
43cb76d9 | 479 | struct kobject *kobj = &dev->dev.kobj; |
1da177e4 LT |
480 | struct net_bridge *br = netdev_priv(dev); |
481 | ||
78a2d906 | 482 | kobject_put(br->ifobj); |
1da177e4 LT |
483 | sysfs_remove_bin_file(kobj, &bridge_forward); |
484 | sysfs_remove_group(kobj, &bridge_group); | |
485 | } |