diff options
Diffstat (limited to 'net/bridge')
| -rw-r--r-- | net/bridge/br_multicast.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 976491951c82..214d1bf854ad 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -2827,9 +2827,11 @@ unlock_continue: #endif static bool br_ip4_multicast_select_querier(struct net_bridge_mcast *brmctx, - struct net_bridge_port *port, + struct net_bridge_mcast_port *pmctx, __be32 saddr) { + struct net_bridge_port *port = pmctx ? pmctx->port : NULL; + if (!timer_pending(&brmctx->ip4_own_query.timer) && !timer_pending(&brmctx->ip4_other_query.timer)) goto update; @@ -2853,9 +2855,11 @@ update: #if IS_ENABLED(CONFIG_IPV6) static bool br_ip6_multicast_select_querier(struct net_bridge_mcast *brmctx, - struct net_bridge_port *port, + struct net_bridge_mcast_port *pmctx, struct in6_addr *saddr) { + struct net_bridge_port *port = pmctx ? pmctx->port : NULL; + if (!timer_pending(&brmctx->ip6_own_query.timer) && !timer_pending(&brmctx->ip6_other_query.timer)) goto update; @@ -3076,7 +3080,7 @@ br_ip4_multicast_query_received(struct net_bridge_mcast *brmctx, struct br_ip *saddr, unsigned long max_delay) { - if (!br_ip4_multicast_select_querier(brmctx, pmctx->port, saddr->src.ip4)) + if (!br_ip4_multicast_select_querier(brmctx, pmctx, saddr->src.ip4)) return; br_multicast_update_query_timer(brmctx, query, max_delay); @@ -3091,7 +3095,7 @@ br_ip6_multicast_query_received(struct net_bridge_mcast *brmctx, struct br_ip *saddr, unsigned long max_delay) { - if (!br_ip6_multicast_select_querier(brmctx, pmctx->port, &saddr->src.ip6)) + if (!br_ip6_multicast_select_querier(brmctx, pmctx, &saddr->src.ip6)) return; br_multicast_update_query_timer(brmctx, query, max_delay); @@ -3322,7 +3326,7 @@ br_multicast_leave_group(struct net_bridge_mcast *brmctx, mod_timer(&own_query->timer, time); for (p = mlock_dereference(mp->ports, brmctx->br); - p != NULL; + p != NULL && pmctx != NULL; p = mlock_dereference(p->next, brmctx->br)) { if (!br_port_group_equal(p, pmctx->port, src)) continue; |