71 	struct net_bridge *br = p->br;  in br_port_carrier_check()  local
78 	if (!netif_running(br->dev))  in br_port_carrier_check()
81 	spin_lock_bh(&br->lock);  in br_port_carrier_check()
93 	spin_unlock_bh(&br->lock);  in br_port_carrier_check()
107 	br_fdb_unsync_static(p->br, p);  in br_port_set_promisc()
126 	err = br_fdb_sync_static(p->br, p);  in br_port_clear_promisc()
139 void br_manage_promisc(struct net_bridge *br)  in br_manage_promisc()  argument
147 	if ((br->dev->flags & IFF_PROMISC) || !br_vlan_enabled(br->dev))  in br_manage_promisc()
150 	list_for_each_entry(p, &br->port_list, list) {  in br_manage_promisc()
164 			if (br->auto_cnt == 0 ||  in br_manage_promisc()
165 			    (br->auto_cnt == 1 && br_auto_port(p)))  in br_manage_promisc()
186 		if (backup_p->br != p->br)  in nbp_backup_change()
213 		list_for_each_entry(cur_p, &p->br->port_list, list) {  in nbp_backup_clear()
225 static void nbp_update_port_count(struct net_bridge *br)  in nbp_update_port_count()  argument
230 	list_for_each_entry(p, &br->port_list, list) {  in nbp_update_port_count()
234 	if (br->auto_cnt != cnt) {  in nbp_update_port_count()
235 		br->auto_cnt = cnt;  in nbp_update_port_count()
236 		br_manage_promisc(br);  in nbp_update_port_count()
250 		br_fdb_unsync_static(p->br, p);  in nbp_delete_promisc()
279 	p->br = NULL;  in destroy_nbp()
293 static unsigned get_max_headroom(struct net_bridge *br)  in get_max_headroom()  argument
298 	list_for_each_entry(p, &br->port_list, list) {  in get_max_headroom()
308 static void update_headroom(struct net_bridge *br, int new_hr)  in update_headroom()  argument
312 	list_for_each_entry(p, &br->port_list, list)  in update_headroom()
315 	br->dev->needed_headroom = new_hr;  in update_headroom()
329 	struct net_bridge *br = p->br;  in del_nbp()  local
332 	sysfs_remove_link(br->ifobj, p->dev->name);  in del_nbp()
336 	spin_lock_bh(&br->lock);  in del_nbp()
338 	spin_unlock_bh(&br->lock);  in del_nbp()
343 	if (netdev_get_fwd_headroom(dev) == br->dev->needed_headroom)  in del_nbp()
344 		update_headroom(br, get_max_headroom(br));  in del_nbp()
348 	br_fdb_delete_by_port(br, p, 0, 1);  in del_nbp()
352 	nbp_update_port_count(br);  in del_nbp()
354 	netdev_upper_dev_unlink(dev, br->dev);  in del_nbp()
373 	struct net_bridge *br = netdev_priv(dev);  in br_dev_delete()  local
376 	list_for_each_entry_safe(p, n, &br->port_list, list) {  in br_dev_delete()
380 	br_recalculate_neigh_suppress_enabled(br);  in br_dev_delete()
382 	br_fdb_delete_by_port(br, NULL, 0, 1);  in br_dev_delete()
384 	cancel_delayed_work_sync(&br->gc_work);  in br_dev_delete()
386 	br_sysfs_delbr(br->dev);  in br_dev_delete()
387 	unregister_netdevice_queue(br->dev, head);  in br_dev_delete()
391 static int find_portno(struct net_bridge *br)  in find_portno()  argument
403 	list_for_each_entry(p, &br->port_list, list) {  in find_portno()
413 static struct net_bridge_port *new_nbp(struct net_bridge *br,  in new_nbp()  argument
419 	index = find_portno(br);  in new_nbp()
427 	p->br = br;  in new_nbp()
495 static int br_mtu_min(const struct net_bridge *br)  in br_mtu_min()  argument
500 	list_for_each_entry(p, &br->port_list, list)  in br_mtu_min()
507 void br_mtu_auto_adjust(struct net_bridge *br)  in br_mtu_auto_adjust()  argument
512 	if (br->mtu_set_by_user)  in br_mtu_auto_adjust()
518 	dev_set_mtu(br->dev, br_mtu_min(br));  in br_mtu_auto_adjust()
519 	br->mtu_set_by_user = false;  in br_mtu_auto_adjust()
522 static void br_set_gso_limits(struct net_bridge *br)  in br_set_gso_limits()  argument
528 	list_for_each_entry(p, &br->port_list, list) {  in br_set_gso_limits()
532 	br->dev->gso_max_size = gso_max_size;  in br_set_gso_limits()
533 	br->dev->gso_max_segs = gso_max_segs;  in br_set_gso_limits()
539 netdev_features_t br_features_recompute(struct net_bridge *br,  in br_features_recompute()  argument
545 	if (list_empty(&br->port_list))  in br_features_recompute()
551 	list_for_each_entry(p, &br->port_list, list) {  in br_features_recompute()
561 int br_add_if(struct net_bridge *br, struct net_device *dev,  in br_add_if()  argument
599 	p = new_nbp(br, dev);  in br_add_if()
628 	err = netdev_master_upper_dev_link(dev, br->dev, NULL, NULL, extack);  in br_add_if()
638 	list_add_rcu(&p->list, &br->port_list);  in br_add_if()
640 	nbp_update_port_count(br);  in br_add_if()
642 	netdev_update_features(br->dev);  in br_add_if()
644 	br_hr = br->dev->needed_headroom;  in br_add_if()
647 		update_headroom(br, dev_hr);  in br_add_if()
651 	if (br_fdb_insert(br, p, dev->dev_addr, 0))  in br_add_if()
660 	spin_lock_bh(&br->lock);  in br_add_if()
661 	changed_addr = br_stp_recalculate_bridge_id(br);  in br_add_if()
664 	    (br->dev->flags & IFF_UP))  in br_add_if()
666 	spin_unlock_bh(&br->lock);  in br_add_if()
671 		call_netdevice_notifiers(NETDEV_CHANGEADDR, br->dev);  in br_add_if()
673 	br_mtu_auto_adjust(br);  in br_add_if()
674 	br_set_gso_limits(br);  in br_add_if()
682 	br_fdb_delete_by_port(br, p, 0, 1);  in br_add_if()
683 	nbp_update_port_count(br);  in br_add_if()
685 	netdev_upper_dev_unlink(dev, br->dev);  in br_add_if()
692 	sysfs_remove_link(br->ifobj, p->dev->name);  in br_add_if()
705 int br_del_if(struct net_bridge *br, struct net_device *dev)  in br_del_if()  argument
711 	if (!p || p->br != br)  in br_del_if()
720 	br_mtu_auto_adjust(br);  in br_del_if()
721 	br_set_gso_limits(br);  in br_del_if()
723 	spin_lock_bh(&br->lock);  in br_del_if()
724 	changed_addr = br_stp_recalculate_bridge_id(br);  in br_del_if()
725 	spin_unlock_bh(&br->lock);  in br_del_if()
728 		call_netdevice_notifiers(NETDEV_CHANGEADDR, br->dev);  in br_del_if()
730 	netdev_update_features(br->dev);  in br_del_if()
737 	struct net_bridge *br = p->br;  in br_port_flags_change()  local
740 		nbp_update_port_count(br);  in br_port_flags_change()
743 		br_recalculate_neigh_suppress_enabled(br);  in br_port_flags_change()