67 	struct net_bridge *br = p->br;  in br_port_carrier_check()  local
74 	if (!netif_running(br->dev))  in br_port_carrier_check()
77 	spin_lock_bh(&br->lock);  in br_port_carrier_check()
89 	spin_unlock_bh(&br->lock);  in br_port_carrier_check()
103 	br_fdb_unsync_static(p->br, p);  in br_port_set_promisc()
122 	err = br_fdb_sync_static(p->br, p);  in br_port_clear_promisc()
135 void br_manage_promisc(struct net_bridge *br)  in br_manage_promisc()  argument
143 	if ((br->dev->flags & IFF_PROMISC) || !br_vlan_enabled(br->dev))  in br_manage_promisc()
146 	list_for_each_entry(p, &br->port_list, list) {  in br_manage_promisc()
160 			if (br->auto_cnt == 0 ||  in br_manage_promisc()
161 			    (br->auto_cnt == 1 && br_auto_port(p)))  in br_manage_promisc()
182 		if (backup_p->br != p->br)  in nbp_backup_change()
209 		list_for_each_entry(cur_p, &p->br->port_list, list) {  in nbp_backup_clear()
221 static void nbp_update_port_count(struct net_bridge *br)  in nbp_update_port_count()  argument
226 	list_for_each_entry(p, &br->port_list, list) {  in nbp_update_port_count()
230 	if (br->auto_cnt != cnt) {  in nbp_update_port_count()
231 		br->auto_cnt = cnt;  in nbp_update_port_count()
232 		br_manage_promisc(br);  in nbp_update_port_count()
246 		br_fdb_unsync_static(p->br, p);  in nbp_delete_promisc()
275 	p->br = NULL;  in destroy_nbp()
289 static unsigned get_max_headroom(struct net_bridge *br)  in get_max_headroom()  argument
294 	list_for_each_entry(p, &br->port_list, list) {  in get_max_headroom()
304 static void update_headroom(struct net_bridge *br, int new_hr)  in update_headroom()  argument
308 	list_for_each_entry(p, &br->port_list, list)  in update_headroom()
311 	br->dev->needed_headroom = new_hr;  in update_headroom()
325 	struct net_bridge *br = p->br;  in del_nbp()  local
328 	sysfs_remove_link(br->ifobj, p->dev->name);  in del_nbp()
332 	spin_lock_bh(&br->lock);  in del_nbp()
334 	spin_unlock_bh(&br->lock);  in del_nbp()
339 	if (netdev_get_fwd_headroom(dev) == br->dev->needed_headroom)  in del_nbp()
340 		update_headroom(br, get_max_headroom(br));  in del_nbp()
344 	br_fdb_delete_by_port(br, p, 0, 1);  in del_nbp()
348 	nbp_update_port_count(br);  in del_nbp()
350 	netdev_upper_dev_unlink(dev, br->dev);  in del_nbp()
369 	struct net_bridge *br = netdev_priv(dev);  in br_dev_delete()  local
372 	list_for_each_entry_safe(p, n, &br->port_list, list) {  in br_dev_delete()
376 	br_recalculate_neigh_suppress_enabled(br);  in br_dev_delete()
378 	br_fdb_delete_by_port(br, NULL, 0, 1);  in br_dev_delete()
380 	cancel_delayed_work_sync(&br->gc_work);  in br_dev_delete()
382 	br_sysfs_delbr(br->dev);  in br_dev_delete()
383 	unregister_netdevice_queue(br->dev, head);  in br_dev_delete()
387 static int find_portno(struct net_bridge *br)  in find_portno()  argument
398 	list_for_each_entry(p, &br->port_list, list) {  in find_portno()
408 static struct net_bridge_port *new_nbp(struct net_bridge *br,  in new_nbp()  argument
414 	index = find_portno(br);  in new_nbp()
422 	p->br = br;  in new_nbp()
490 static int br_mtu_min(const struct net_bridge *br)  in br_mtu_min()  argument
495 	list_for_each_entry(p, &br->port_list, list)  in br_mtu_min()
502 void br_mtu_auto_adjust(struct net_bridge *br)  in br_mtu_auto_adjust()  argument
507 	if (br_opt_get(br, BROPT_MTU_SET_BY_USER))  in br_mtu_auto_adjust()
513 	dev_set_mtu(br->dev, br_mtu_min(br));  in br_mtu_auto_adjust()
514 	br_opt_toggle(br, BROPT_MTU_SET_BY_USER, false);  in br_mtu_auto_adjust()
517 static void br_set_gso_limits(struct net_bridge *br)  in br_set_gso_limits()  argument
523 	list_for_each_entry(p, &br->port_list, list) {  in br_set_gso_limits()
527 	br->dev->gso_max_size = gso_max_size;  in br_set_gso_limits()
528 	br->dev->gso_max_segs = gso_max_segs;  in br_set_gso_limits()
534 netdev_features_t br_features_recompute(struct net_bridge *br,  in br_features_recompute()  argument
540 	if (list_empty(&br->port_list))  in br_features_recompute()
546 	list_for_each_entry(p, &br->port_list, list) {  in br_features_recompute()
556 int br_add_if(struct net_bridge *br, struct net_device *dev,  in br_add_if()  argument
594 	p = new_nbp(br, dev);  in br_add_if()
625 	err = netdev_master_upper_dev_link(dev, br->dev, NULL, NULL, extack);  in br_add_if()
635 	list_add_rcu(&p->list, &br->port_list);  in br_add_if()
637 	nbp_update_port_count(br);  in br_add_if()
639 	netdev_update_features(br->dev);  in br_add_if()
641 	br_hr = br->dev->needed_headroom;  in br_add_if()
644 		update_headroom(br, dev_hr);  in br_add_if()
648 	if (br_fdb_insert(br, p, dev->dev_addr, 0))  in br_add_if()
651 	if (br->dev->addr_assign_type != NET_ADDR_SET) {  in br_add_if()
655 		err = dev_pre_changeaddr_notify(br->dev, dev->dev_addr, extack);  in br_add_if()
666 	spin_lock_bh(&br->lock);  in br_add_if()
667 	changed_addr = br_stp_recalculate_bridge_id(br);  in br_add_if()
670 	    (br->dev->flags & IFF_UP))  in br_add_if()
672 	spin_unlock_bh(&br->lock);  in br_add_if()
677 		call_netdevice_notifiers(NETDEV_CHANGEADDR, br->dev);  in br_add_if()
679 	br_mtu_auto_adjust(br);  in br_add_if()
680 	br_set_gso_limits(br);  in br_add_if()
688 	br_fdb_delete_by_port(br, p, 0, 1);  in br_add_if()
689 	nbp_update_port_count(br);  in br_add_if()
691 	netdev_upper_dev_unlink(dev, br->dev);  in br_add_if()
698 	sysfs_remove_link(br->ifobj, p->dev->name);  in br_add_if()
708 int br_del_if(struct net_bridge *br, struct net_device *dev)  in br_del_if()  argument
714 	if (!p || p->br != br)  in br_del_if()
723 	br_mtu_auto_adjust(br);  in br_del_if()
724 	br_set_gso_limits(br);  in br_del_if()
726 	spin_lock_bh(&br->lock);  in br_del_if()
727 	changed_addr = br_stp_recalculate_bridge_id(br);  in br_del_if()
728 	spin_unlock_bh(&br->lock);  in br_del_if()
731 		call_netdevice_notifiers(NETDEV_CHANGEADDR, br->dev);  in br_del_if()
733 	netdev_update_features(br->dev);  in br_del_if()
740 	struct net_bridge *br = p->br;  in br_port_flags_change()  local
743 		nbp_update_port_count(br);  in br_port_flags_change()
746 		br_recalculate_neigh_suppress_enabled(br);  in br_port_flags_change()