diff options
Diffstat (limited to 'net/bridge')
| -rw-r--r-- | net/bridge/br_multicast.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 541a22e130b0..ba2ce875a80e 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -222,15 +222,34 @@ static void br_multicast_find_del_pg(struct net_bridge *br, static void br_multicast_port_group_expired(struct timer_list *t) { struct net_bridge_port_group *pg = from_timer(pg, t, timer); + struct net_bridge_group_src *src_ent; struct net_bridge *br = pg->port->br; + struct hlist_node *tmp; + bool changed; spin_lock(&br->multicast_lock); if (!netif_running(br->dev) || timer_pending(&pg->timer) || hlist_unhashed(&pg->mglist) || pg->flags & MDB_PG_FLAGS_PERMANENT) goto out; - br_multicast_find_del_pg(br, pg); + changed = !!(pg->filter_mode == MCAST_EXCLUDE); + pg->filter_mode = MCAST_INCLUDE; + hlist_for_each_entry_safe(src_ent, tmp, &pg->src_list, node) { + if (!timer_pending(&src_ent->timer)) { + br_multicast_del_group_src(src_ent); + changed = true; + } + } + if (hlist_empty(&pg->src_list)) { + br_multicast_find_del_pg(br, pg); + } else if (changed) { + struct net_bridge_mdb_entry *mp = br_mdb_ip_get(br, &pg->addr); + + if (WARN_ON(!mp)) + goto out; + br_mdb_notify(br->dev, mp, pg, RTM_NEWMDB); + } out: spin_unlock(&br->multicast_lock); } |