bridge: multicast: restore router configuration on port link down/up
When a port goes through a link down/up the multicast router configuration
is not restored.
Signed-off-by: Satish Ashok <sashok@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Fixes: 0909e11758bd ("bridge: Add multicast_router sysfs entries")
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index ff667e1..761fc73 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -37,6 +37,8 @@
static void br_multicast_start_querier(struct net_bridge *br,
struct bridge_mcast_own_query *query);
+static void br_multicast_add_router(struct net_bridge *br,
+ struct net_bridge_port *port);
unsigned int br_mdb_rehash_seq;
static inline int br_ip_equal(const struct br_ip *a, const struct br_ip *b)
@@ -936,6 +938,8 @@
#if IS_ENABLED(CONFIG_IPV6)
br_multicast_enable(&port->ip6_own_query);
#endif
+ if (port->multicast_router == 2 && hlist_unhashed(&port->rlist))
+ br_multicast_add_router(br, port);
out:
spin_unlock(&br->multicast_lock);