3.2.71-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Satish Ashok <sas...@cumulusnetworks.com>
commit 754bc547f0a79f7568b5b81c7fc0a8d044a6571a upstream.
When a port goes through a link down/up the multicast router configuration
is not restored.
Signed-off-by: Satish Ashok <sas...@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <niko...@cumulusnetworks.com>
Fixes: 0909e11758bd ("bridge: Add multicast_router sysfs entries")
Acked-by: Herbert Xu <herb...@gondor.apana.org.au>
Signed-off-by: David S. Miller <da...@davemloft.net>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
net/bridge/br_multicast.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -36,6 +36,9 @@
#define mlock_dereference(X, br) \
rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
+static void br_multicast_add_router(struct net_bridge *br,
+ struct net_bridge_port *port);
+
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
static inline int ipv6_is_transient_multicast(const struct in6_addr *addr)
{
@@ -842,6 +845,8 @@ void br_multicast_enable_port(struct net
goto out;
__br_multicast_enable_port(port);
+ if (port->multicast_router == 2 && hlist_unhashed(&port->rlist))
+ br_multicast_add_router(br, port);
out:
spin_unlock(&br->multicast_lock);
--
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