Commit | Line | Data |
---|---|---|
2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * Device handling code | |
4 | * Linux ethernet bridge | |
5 | * | |
6 | * Authors: | |
7 | * Lennert Buytenhek <buytenh@gnu.org> | |
1da177e4 LT |
8 | */ |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/netdevice.h> | |
c06ee961 | 12 | #include <linux/netpoll.h> |
4505a3ef | 13 | #include <linux/etherdevice.h> |
edb5e46f | 14 | #include <linux/ethtool.h> |
c06ee961 | 15 | #include <linux/list.h> |
ea2d9b41 | 16 | #include <linux/netfilter_bridge.h> |
4505a3ef | 17 | |
7c0f6ba6 | 18 | #include <linux/uaccess.h> |
1da177e4 LT |
19 | #include "br_private.h" |
20 | ||
161f65ba VY |
21 | #define COMMON_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA | \ |
22 | NETIF_F_GSO_MASK | NETIF_F_HW_CSUM) | |
23 | ||
1a4ba64d PNA |
24 | const struct nf_br_ops __rcu *nf_br_ops __read_mostly; |
25 | EXPORT_SYMBOL_GPL(nf_br_ops); | |
26 | ||
c6894dec NA |
27 | static struct lock_class_key bridge_netdev_addr_lock_key; |
28 | ||
eeaf61d8 | 29 | /* net device transmit always called with BH disabled */ |
6fef4c0c | 30 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 LT |
31 | { |
32 | struct net_bridge *br = netdev_priv(dev); | |
1da177e4 | 33 | struct net_bridge_fdb_entry *dst; |
c4fcb78c | 34 | struct net_bridge_mdb_entry *mdst; |
8f84985f | 35 | struct pcpu_sw_netstats *brstats = this_cpu_ptr(br->stats); |
1a4ba64d | 36 | const struct nf_br_ops *nf_ops; |
31a4562d | 37 | const unsigned char *dest; |
057658cb | 38 | struct ethhdr *eth; |
78851988 | 39 | u16 vid = 0; |
1da177e4 | 40 | |
c03307ea | 41 | rcu_read_lock(); |
1a4ba64d PNA |
42 | nf_ops = rcu_dereference(nf_br_ops); |
43 | if (nf_ops && nf_ops->br_dev_xmit_hook(skb)) { | |
c03307ea | 44 | rcu_read_unlock(); |
ea2d9b41 BDS |
45 | return NETDEV_TX_OK; |
46 | } | |
ea2d9b41 | 47 | |
406818ff | 48 | u64_stats_update_begin(&brstats->syncp); |
14bb4789 | 49 | brstats->tx_packets++; |
50 | brstats->tx_bytes += skb->len; | |
406818ff | 51 | u64_stats_update_end(&brstats->syncp); |
6088a539 | 52 | |
f1c2eddf | 53 | br_switchdev_frame_unmark(skb); |
14bb4789 | 54 | BR_INPUT_SKB_CB(skb)->brdev = dev; |
3c171f49 | 55 | BR_INPUT_SKB_CB(skb)->frag_max_size = 0; |
1da177e4 | 56 | |
459a98ed | 57 | skb_reset_mac_header(skb); |
057658cb | 58 | eth = eth_hdr(skb); |
1da177e4 LT |
59 | skb_pull(skb, ETH_HLEN); |
60 | ||
907b1e6e | 61 | if (!br_allowed_ingress(br, br_vlan_group_rcu(br), skb, &vid)) |
12464bb8 TM |
62 | goto out; |
63 | ||
057658cb RP |
64 | if (IS_ENABLED(CONFIG_INET) && |
65 | (eth->h_proto == htons(ETH_P_ARP) || | |
66 | eth->h_proto == htons(ETH_P_RARP)) && | |
c69c2cd4 | 67 | br_opt_get(br, BROPT_NEIGH_SUPPRESS_ENABLED)) { |
057658cb | 68 | br_do_proxy_suppress_arp(skb, br, vid, NULL); |
ed842fae RP |
69 | } else if (IS_ENABLED(CONFIG_IPV6) && |
70 | skb->protocol == htons(ETH_P_IPV6) && | |
c69c2cd4 | 71 | br_opt_get(br, BROPT_NEIGH_SUPPRESS_ENABLED) && |
ed842fae RP |
72 | pskb_may_pull(skb, sizeof(struct ipv6hdr) + |
73 | sizeof(struct nd_msg)) && | |
74 | ipv6_hdr(skb)->nexthdr == IPPROTO_ICMPV6) { | |
75 | struct nd_msg *msg, _msg; | |
76 | ||
77 | msg = br_is_nd_neigh_msg(skb, &_msg); | |
78 | if (msg) | |
79 | br_do_suppress_nd(skb, br, vid, NULL, msg); | |
057658cb RP |
80 | } |
81 | ||
31a4562d | 82 | dest = eth_hdr(skb)->h_dest; |
37b090e6 | 83 | if (is_broadcast_ether_addr(dest)) { |
8addd5e7 | 84 | br_flood(br, skb, BR_PKT_BROADCAST, false, true); |
37b090e6 | 85 | } else if (is_multicast_ether_addr(dest)) { |
91d2c34a | 86 | if (unlikely(netpoll_tx_running(dev))) { |
8addd5e7 | 87 | br_flood(br, skb, BR_PKT_MULTICAST, false, true); |
91d2c34a HX |
88 | goto out; |
89 | } | |
06499098 | 90 | if (br_multicast_rcv(br, NULL, skb, vid)) { |
6d1d1d39 | 91 | kfree_skb(skb); |
c4fcb78c | 92 | goto out; |
6d1d1d39 | 93 | } |
c4fcb78c | 94 | |
fbca58a2 | 95 | mdst = br_mdb_get(br, skb, vid); |
b00589af | 96 | if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) && |
cc0fdd80 | 97 | br_multicast_querier_exists(br, eth_hdr(skb))) |
37b090e6 | 98 | br_multicast_flood(mdst, skb, false, true); |
c4fcb78c | 99 | else |
8addd5e7 | 100 | br_flood(br, skb, BR_PKT_MULTICAST, false, true); |
bfd0aeac | 101 | } else if ((dst = br_fdb_find_rcu(br, dest, vid)) != NULL) { |
37b090e6 NA |
102 | br_forward(dst->dst, skb, false, true); |
103 | } else { | |
8addd5e7 | 104 | br_flood(br, skb, BR_PKT_UNICAST, false, true); |
37b090e6 | 105 | } |
c4fcb78c | 106 | out: |
eeaf61d8 | 107 | rcu_read_unlock(); |
6ed10654 | 108 | return NETDEV_TX_OK; |
1da177e4 LT |
109 | } |
110 | ||
c6894dec NA |
111 | static void br_set_lockdep_class(struct net_device *dev) |
112 | { | |
113 | lockdep_set_class(&dev->addr_list_lock, &bridge_netdev_addr_lock_key); | |
114 | } | |
115 | ||
bb900b27 | 116 | static int br_dev_init(struct net_device *dev) |
117 | { | |
118 | struct net_bridge *br = netdev_priv(dev); | |
5be5a2df | 119 | int err; |
bb900b27 | 120 | |
1c213bd2 | 121 | br->stats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
bb900b27 | 122 | if (!br->stats) |
123 | return -ENOMEM; | |
124 | ||
eb793583 NA |
125 | err = br_fdb_hash_init(br); |
126 | if (err) { | |
127 | free_percpu(br->stats); | |
128 | return err; | |
129 | } | |
130 | ||
19e3a9c9 NA |
131 | err = br_mdb_hash_init(br); |
132 | if (err) { | |
133 | free_percpu(br->stats); | |
134 | br_fdb_hash_fini(br); | |
135 | return err; | |
136 | } | |
137 | ||
5be5a2df | 138 | err = br_vlan_init(br); |
1080ab95 | 139 | if (err) { |
5be5a2df | 140 | free_percpu(br->stats); |
19e3a9c9 | 141 | br_mdb_hash_fini(br); |
eb793583 | 142 | br_fdb_hash_fini(br); |
1080ab95 NA |
143 | return err; |
144 | } | |
145 | ||
146 | err = br_multicast_init_stats(br); | |
147 | if (err) { | |
148 | free_percpu(br->stats); | |
149 | br_vlan_flush(br); | |
19e3a9c9 | 150 | br_mdb_hash_fini(br); |
eb793583 | 151 | br_fdb_hash_fini(br); |
1080ab95 | 152 | } |
c6894dec | 153 | br_set_lockdep_class(dev); |
5be5a2df VY |
154 | |
155 | return err; | |
bb900b27 | 156 | } |
157 | ||
b6fe0440 IS |
158 | static void br_dev_uninit(struct net_device *dev) |
159 | { | |
160 | struct net_bridge *br = netdev_priv(dev); | |
161 | ||
b1b9d366 | 162 | br_multicast_dev_del(br); |
b6fe0440 IS |
163 | br_multicast_uninit_stats(br); |
164 | br_vlan_flush(br); | |
19e3a9c9 | 165 | br_mdb_hash_fini(br); |
eb793583 | 166 | br_fdb_hash_fini(br); |
b6fe0440 IS |
167 | free_percpu(br->stats); |
168 | } | |
169 | ||
1da177e4 LT |
170 | static int br_dev_open(struct net_device *dev) |
171 | { | |
81d35307 | 172 | struct net_bridge *br = netdev_priv(dev); |
1da177e4 | 173 | |
c4d27ef9 | 174 | netdev_update_features(dev); |
81d35307 SH |
175 | netif_start_queue(dev); |
176 | br_stp_enable_bridge(br); | |
3fe2d7c7 | 177 | br_multicast_open(br); |
1da177e4 LT |
178 | |
179 | return 0; | |
180 | } | |
181 | ||
182 | static void br_dev_set_multicast_list(struct net_device *dev) | |
183 | { | |
184 | } | |
185 | ||
2796d0c6 VY |
186 | static void br_dev_change_rx_flags(struct net_device *dev, int change) |
187 | { | |
188 | if (change & IFF_PROMISC) | |
189 | br_manage_promisc(netdev_priv(dev)); | |
190 | } | |
191 | ||
1da177e4 LT |
192 | static int br_dev_stop(struct net_device *dev) |
193 | { | |
3fe2d7c7 HX |
194 | struct net_bridge *br = netdev_priv(dev); |
195 | ||
196 | br_stp_disable_bridge(br); | |
197 | br_multicast_stop(br); | |
1da177e4 LT |
198 | |
199 | netif_stop_queue(dev); | |
200 | ||
201 | return 0; | |
202 | } | |
203 | ||
bc1f4470 | 204 | static void br_get_stats64(struct net_device *dev, |
205 | struct rtnl_link_stats64 *stats) | |
14bb4789 | 206 | { |
207 | struct net_bridge *br = netdev_priv(dev); | |
8f84985f | 208 | struct pcpu_sw_netstats tmp, sum = { 0 }; |
14bb4789 | 209 | unsigned int cpu; |
210 | ||
211 | for_each_possible_cpu(cpu) { | |
406818ff | 212 | unsigned int start; |
8f84985f | 213 | const struct pcpu_sw_netstats *bstats |
14bb4789 | 214 | = per_cpu_ptr(br->stats, cpu); |
406818ff | 215 | do { |
57a7744e | 216 | start = u64_stats_fetch_begin_irq(&bstats->syncp); |
406818ff | 217 | memcpy(&tmp, bstats, sizeof(tmp)); |
57a7744e | 218 | } while (u64_stats_fetch_retry_irq(&bstats->syncp, start)); |
406818ff ED |
219 | sum.tx_bytes += tmp.tx_bytes; |
220 | sum.tx_packets += tmp.tx_packets; | |
221 | sum.rx_bytes += tmp.rx_bytes; | |
222 | sum.rx_packets += tmp.rx_packets; | |
14bb4789 | 223 | } |
224 | ||
225 | stats->tx_bytes = sum.tx_bytes; | |
226 | stats->tx_packets = sum.tx_packets; | |
227 | stats->rx_bytes = sum.rx_bytes; | |
228 | stats->rx_packets = sum.rx_packets; | |
14bb4789 | 229 | } |
230 | ||
1da177e4 LT |
231 | static int br_change_mtu(struct net_device *dev, int new_mtu) |
232 | { | |
4adf0af6 | 233 | struct net_bridge *br = netdev_priv(dev); |
f40aa233 | 234 | |
1da177e4 | 235 | dev->mtu = new_mtu; |
4adf0af6 | 236 | |
804b854d | 237 | /* this flag will be cleared if the MTU was automatically adjusted */ |
3341d917 | 238 | br_opt_toggle(br, BROPT_MTU_SET_BY_USER, true); |
34666d46 | 239 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
4adf0af6 | 240 | /* remember the MTU in the rtable for PMTU */ |
defb3519 | 241 | dst_metric_set(&br->fake_rtable.dst, RTAX_MTU, new_mtu); |
4adf0af6 SW |
242 | #endif |
243 | ||
1da177e4 LT |
244 | return 0; |
245 | } | |
246 | ||
ffe1d49c | 247 | /* Allow setting mac address to any valid ethernet address. */ |
4505a3ef SH |
248 | static int br_set_mac_address(struct net_device *dev, void *p) |
249 | { | |
250 | struct net_bridge *br = netdev_priv(dev); | |
251 | struct sockaddr *addr = p; | |
ffe1d49c SH |
252 | |
253 | if (!is_valid_ether_addr(addr->sa_data)) | |
7ca1e11a | 254 | return -EADDRNOTAVAIL; |
4505a3ef SH |
255 | |
256 | spin_lock_bh(&br->lock); | |
9a7b6ef9 | 257 | if (!ether_addr_equal(dev->dev_addr, addr->sa_data)) { |
a3ebb7ef | 258 | /* Mac address will be changed in br_stp_change_bridge_id(). */ |
43598813 | 259 | br_stp_change_bridge_id(br, addr->sa_data); |
260 | } | |
4505a3ef SH |
261 | spin_unlock_bh(&br->lock); |
262 | ||
ffe1d49c | 263 | return 0; |
4505a3ef SH |
264 | } |
265 | ||
edb5e46f SH |
266 | static void br_getinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
267 | { | |
7826d43f JP |
268 | strlcpy(info->driver, "bridge", sizeof(info->driver)); |
269 | strlcpy(info->version, BR_VERSION, sizeof(info->version)); | |
270 | strlcpy(info->fw_version, "N/A", sizeof(info->fw_version)); | |
271 | strlcpy(info->bus_info, "N/A", sizeof(info->bus_info)); | |
edb5e46f SH |
272 | } |
273 | ||
c8f44aff MM |
274 | static netdev_features_t br_fix_features(struct net_device *dev, |
275 | netdev_features_t features) | |
edb5e46f SH |
276 | { |
277 | struct net_bridge *br = netdev_priv(dev); | |
278 | ||
c4d27ef9 | 279 | return br_features_recompute(br, features); |
361ff8a6 JG |
280 | } |
281 | ||
c06ee961 | 282 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a | 283 | static void br_poll_controller(struct net_device *br_dev) |
c06ee961 | 284 | { |
c06ee961 WC |
285 | } |
286 | ||
91d2c34a | 287 | static void br_netpoll_cleanup(struct net_device *dev) |
c06ee961 | 288 | { |
91d2c34a | 289 | struct net_bridge *br = netdev_priv(dev); |
4e3828c4 | 290 | struct net_bridge_port *p; |
c06ee961 | 291 | |
4e3828c4 | 292 | list_for_each_entry(p, &br->port_list, list) |
91d2c34a | 293 | br_netpoll_disable(p); |
c06ee961 WC |
294 | } |
295 | ||
a8779ec1 | 296 | static int __br_netpoll_enable(struct net_bridge_port *p) |
dbe17307 CW |
297 | { |
298 | struct netpoll *np; | |
299 | int err; | |
300 | ||
a8779ec1 | 301 | np = kzalloc(sizeof(*p->np), GFP_KERNEL); |
dbe17307 CW |
302 | if (!np) |
303 | return -ENOMEM; | |
304 | ||
a8779ec1 | 305 | err = __netpoll_setup(np, p->dev); |
dbe17307 CW |
306 | if (err) { |
307 | kfree(np); | |
308 | return err; | |
309 | } | |
310 | ||
311 | p->np = np; | |
312 | return err; | |
313 | } | |
314 | ||
a8779ec1 | 315 | int br_netpoll_enable(struct net_bridge_port *p) |
dbe17307 CW |
316 | { |
317 | if (!p->br->dev->npinfo) | |
318 | return 0; | |
319 | ||
a8779ec1 | 320 | return __br_netpoll_enable(p); |
dbe17307 CW |
321 | } |
322 | ||
a8779ec1 | 323 | static int br_netpoll_setup(struct net_device *dev, struct netpoll_info *ni) |
c06ee961 | 324 | { |
cfb478da | 325 | struct net_bridge *br = netdev_priv(dev); |
4e3828c4 | 326 | struct net_bridge_port *p; |
91d2c34a | 327 | int err = 0; |
c06ee961 | 328 | |
4e3828c4 | 329 | list_for_each_entry(p, &br->port_list, list) { |
91d2c34a HX |
330 | if (!p->dev) |
331 | continue; | |
a8779ec1 | 332 | err = __br_netpoll_enable(p); |
91d2c34a HX |
333 | if (err) |
334 | goto fail; | |
c06ee961 | 335 | } |
91d2c34a HX |
336 | |
337 | out: | |
338 | return err; | |
339 | ||
340 | fail: | |
341 | br_netpoll_cleanup(dev); | |
342 | goto out; | |
c06ee961 WC |
343 | } |
344 | ||
91d2c34a | 345 | void br_netpoll_disable(struct net_bridge_port *p) |
c06ee961 | 346 | { |
91d2c34a HX |
347 | struct netpoll *np = p->np; |
348 | ||
349 | if (!np) | |
350 | return; | |
351 | ||
352 | p->np = NULL; | |
353 | ||
c9fbd71f | 354 | __netpoll_free(np); |
c06ee961 WC |
355 | } |
356 | ||
357 | #endif | |
358 | ||
33eaf2a6 DA |
359 | static int br_add_slave(struct net_device *dev, struct net_device *slave_dev, |
360 | struct netlink_ext_ack *extack) | |
afc6151a JP |
361 | |
362 | { | |
363 | struct net_bridge *br = netdev_priv(dev); | |
364 | ||
ca752be0 | 365 | return br_add_if(br, slave_dev, extack); |
afc6151a JP |
366 | } |
367 | ||
368 | static int br_del_slave(struct net_device *dev, struct net_device *slave_dev) | |
369 | { | |
370 | struct net_bridge *br = netdev_priv(dev); | |
371 | ||
372 | return br_del_if(br, slave_dev); | |
373 | } | |
374 | ||
a2dbb882 | 375 | static const struct ethtool_ops br_ethtool_ops = { |
e4119a43 SH |
376 | .get_drvinfo = br_getinfo, |
377 | .get_link = ethtool_op_get_link, | |
edb5e46f SH |
378 | }; |
379 | ||
a2dbb882 SH |
380 | static const struct net_device_ops br_netdev_ops = { |
381 | .ndo_open = br_dev_open, | |
382 | .ndo_stop = br_dev_stop, | |
bb900b27 | 383 | .ndo_init = br_dev_init, |
b6fe0440 | 384 | .ndo_uninit = br_dev_uninit, |
00829823 | 385 | .ndo_start_xmit = br_dev_xmit, |
406818ff | 386 | .ndo_get_stats64 = br_get_stats64, |
00829823 | 387 | .ndo_set_mac_address = br_set_mac_address, |
afc4b13d | 388 | .ndo_set_rx_mode = br_dev_set_multicast_list, |
2796d0c6 | 389 | .ndo_change_rx_flags = br_dev_change_rx_flags, |
00829823 SH |
390 | .ndo_change_mtu = br_change_mtu, |
391 | .ndo_do_ioctl = br_dev_ioctl, | |
c06ee961 | 392 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a | 393 | .ndo_netpoll_setup = br_netpoll_setup, |
c06ee961 WC |
394 | .ndo_netpoll_cleanup = br_netpoll_cleanup, |
395 | .ndo_poll_controller = br_poll_controller, | |
396 | #endif | |
afc6151a JP |
397 | .ndo_add_slave = br_add_slave, |
398 | .ndo_del_slave = br_del_slave, | |
c4d27ef9 | 399 | .ndo_fix_features = br_fix_features, |
77162022 JF |
400 | .ndo_fdb_add = br_fdb_add, |
401 | .ndo_fdb_del = br_fdb_delete, | |
402 | .ndo_fdb_dump = br_fdb_dump, | |
47674562 | 403 | .ndo_fdb_get = br_fdb_get, |
e5a55a89 JF |
404 | .ndo_bridge_getlink = br_getlink, |
405 | .ndo_bridge_setlink = br_setlink, | |
407af329 | 406 | .ndo_bridge_dellink = br_dellink, |
66780530 | 407 | .ndo_features_check = passthru_features_check, |
a2dbb882 SH |
408 | }; |
409 | ||
bb900b27 | 410 | static struct device_type br_type = { |
411 | .name = "bridge", | |
412 | }; | |
413 | ||
1da177e4 LT |
414 | void br_dev_setup(struct net_device *dev) |
415 | { | |
bb900b27 | 416 | struct net_bridge *br = netdev_priv(dev); |
417 | ||
7ce5d222 | 418 | eth_hw_addr_random(dev); |
1da177e4 LT |
419 | ether_setup(dev); |
420 | ||
a2dbb882 | 421 | dev->netdev_ops = &br_netdev_ops; |
cf124db5 | 422 | dev->needs_free_netdev = true; |
7ad24ea4 | 423 | dev->ethtool_ops = &br_ethtool_ops; |
bb900b27 | 424 | SET_NETDEV_DEVTYPE(dev, &br_type); |
ccecb2a4 | 425 | dev->priv_flags = IFF_EBRIDGE | IFF_NO_QUEUE; |
edb5e46f | 426 | |
161f65ba | 427 | dev->features = COMMON_FEATURES | NETIF_F_LLTX | NETIF_F_NETNS_LOCAL | |
1c5abb6c TM |
428 | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX; |
429 | dev->hw_features = COMMON_FEATURES | NETIF_F_HW_VLAN_CTAG_TX | | |
430 | NETIF_F_HW_VLAN_STAG_TX; | |
161f65ba | 431 | dev->vlan_features = COMMON_FEATURES; |
bb900b27 | 432 | |
433 | br->dev = dev; | |
434 | spin_lock_init(&br->lock); | |
435 | INIT_LIST_HEAD(&br->port_list); | |
eb793583 | 436 | INIT_HLIST_HEAD(&br->fdb_list); |
bb900b27 | 437 | spin_lock_init(&br->hash_lock); |
438 | ||
439 | br->bridge_id.prio[0] = 0x80; | |
440 | br->bridge_id.prio[1] = 0x00; | |
441 | ||
05428729 | 442 | ether_addr_copy(br->group_addr, eth_stp_addr); |
bb900b27 | 443 | |
bb900b27 | 444 | br->stp_enabled = BR_NO_STP; |
515853cc | 445 | br->group_fwd_mask = BR_GROUPFWD_DEFAULT; |
f2808d22 | 446 | br->group_fwd_mask_required = BR_GROUPFWD_DEFAULT; |
515853cc | 447 | |
bb900b27 | 448 | br->designated_root = br->bridge_id; |
449 | br->bridge_max_age = br->max_age = 20 * HZ; | |
450 | br->bridge_hello_time = br->hello_time = 2 * HZ; | |
451 | br->bridge_forward_delay = br->forward_delay = 15 * HZ; | |
34d8acd8 | 452 | br->bridge_ageing_time = br->ageing_time = BR_DEFAULT_AGEING_TIME; |
91572088 | 453 | dev->max_mtu = ETH_MAX_MTU; |
bb900b27 | 454 | |
455 | br_netfilter_rtable_init(br); | |
456 | br_stp_timer_init(br); | |
457 | br_multicast_init(br); | |
f7cdee8a | 458 | INIT_DELAYED_WORK(&br->gc_work, br_fdb_cleanup); |
1da177e4 | 459 | } |