From 4950cfd1e6a85b5e079a78f19792e6ec54199170 Mon Sep 17 00:00:00 2001 From: Nikolay Aleksandrov Date: Fri, 26 Feb 2016 21:20:02 +0100 Subject: [PATCH] bridge: mcast: do nothing if port's multicast_router is set to the same val This is needed for the upcoming temporary port router. There's no point to go through the logic if the value is the same. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- net/bridge/br_multicast.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 71c109b0943f..f1140cf5168d 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -1853,7 +1853,10 @@ int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val) int err = -EINVAL; spin_lock(&br->multicast_lock); - + if (p->multicast_router == val) { + err = 0; + goto unlock; + } switch (val) { case MDB_RTR_TYPE_DISABLED: p->multicast_router = MDB_RTR_TYPE_DISABLED; -- 2.20.1