bridge: multicast: notify on group delete

Group notifications were not sent when a group expired or was deleted
due to bridge/port device being deleted. So add br_mdb_notify() to
br_multicast_del_pg().

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 5a44cd9..55903d9 100644 (file)
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -273,6 +273,8 @@ static void br_multicast_del_pg(struct net_bridge *br,
                rcu_assign_pointer(*pp, p->next);
                hlist_del_init(&p->mglist);
                del_timer(&p->timer);
+               br_mdb_notify(br->dev, p->port, &pg->addr, RTM_DELMDB,
+                             p->state);
                call_rcu_bh(&p->rcu, br_multicast_free_pg);
 
                if (!mp->ports && !mp->mglist &&