[Bridge] [PATCH net-next 2/3] bridge: mcast: do nothing if port's multicast_router is set to the same val
Nikolay Aleksandrov
nikolay at cumulusnetworks.com
Fri Feb 26 18:59:25 UTC 2016
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 <nikolay at cumulusnetworks.com>
---
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 015c47dd1364..496f808f9aa1 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:
__del_port_router(p);
--
2.4.3
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