Commit e10177ab authored by Satish Ashok's avatar Satish Ashok Committed by David S. Miller
Browse files

bridge: multicast: fix handling of temp and perm entries



When the bridge (or port) is brought down/up flush only temp entries and
leave the perm ones. Flush perm entries only when deleting the bridge
device or the associated port.
Signed-off-by: default avatarSatish Ashok <sashok@cumulusnetworks.com>
Signed-off-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ef8299de
......@@ -281,6 +281,7 @@ void br_dev_delete(struct net_device *dev, struct list_head *head)
br_fdb_delete_by_port(br, NULL, 0, 1);
br_vlan_flush(br);
br_multicast_dev_del(br);
del_timer_sync(&br->gc_timer);
br_sysfs_delbr(br->dev);
......
......@@ -916,6 +916,15 @@ void br_multicast_add_port(struct net_bridge_port *port)
void br_multicast_del_port(struct net_bridge_port *port)
{
struct net_bridge *br = port->br;
struct net_bridge_port_group *pg;
struct hlist_node *n;
/* Take care of the remaining groups, only perm ones should be left */
spin_lock_bh(&br->multicast_lock);
hlist_for_each_entry_safe(pg, n, &port->mglist, mglist)
br_multicast_del_pg(br, pg);
spin_unlock_bh(&br->multicast_lock);
del_timer_sync(&port->multicast_router_timer);
}
......@@ -955,7 +964,8 @@ void br_multicast_disable_port(struct net_bridge_port *port)
spin_lock(&br->multicast_lock);
hlist_for_each_entry_safe(pg, n, &port->mglist, mglist)
br_multicast_del_pg(br, pg);
if (pg->state == MDB_TEMPORARY)
br_multicast_del_pg(br, pg);
if (!hlist_unhashed(&port->rlist))
hlist_del_init_rcu(&port->rlist);
......@@ -1732,12 +1742,6 @@ void br_multicast_open(struct net_bridge *br)
void br_multicast_stop(struct net_bridge *br)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
struct hlist_node *n;
u32 ver;
int i;
del_timer_sync(&br->multicast_router_timer);
del_timer_sync(&br->ip4_other_query.timer);
del_timer_sync(&br->ip4_own_query.timer);
......@@ -1745,6 +1749,15 @@ void br_multicast_stop(struct net_bridge *br)
del_timer_sync(&br->ip6_other_query.timer);
del_timer_sync(&br->ip6_own_query.timer);
#endif
}
void br_multicast_dev_del(struct net_bridge *br)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
struct hlist_node *n;
u32 ver;
int i;
spin_lock_bh(&br->multicast_lock);
mdb = mlock_dereference(br->mdb, br);
......
......@@ -466,6 +466,7 @@ void br_multicast_disable_port(struct net_bridge_port *port);
void br_multicast_init(struct net_bridge *br);
void br_multicast_open(struct net_bridge *br);
void br_multicast_stop(struct net_bridge *br);
void br_multicast_dev_del(struct net_bridge *br);
void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
struct sk_buff *skb);
void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
......
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