netdev - [PATCH net] bridge: mdb: fix double add notification

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Message-Id: <1436794579-4188-1-git-send-email-nikolay@cumulusnetworks.com>
Date:	Mon, 13 Jul 2015 06:36:19 -0700
From:	Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
To:	netdev@...r.kernel.org
Cc:	bridge@...ts.linux-foundation.org, amwang@...hat.com,
	davem@...emloft.net, stephen@...workplumber.org,
	Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Subject: [PATCH net] bridge: mdb: fix double add notification

Since the mdb add/del code was introduced there have been 2 br_mdb_notify
calls when doing br_mdb_add() resulting in 2 notifications on each add.

Example:
 Command: bridge mdb add dev br0 port eth1 grp 239.0.0.1 permanent
 Before patch:
 root@...ian:~# bridge monitor all
 [MDB]dev br0 port eth1 grp 239.0.0.1 permanent
 [MDB]dev br0 port eth1 grp 239.0.0.1 permanent

 After patch:
 root@...ian:~# bridge monitor all
 [MDB]dev br0 port eth1 grp 239.0.0.1 permanent

Signed-off-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Fixes: cfd567543590 ("bridge: add support of adding and deleting mdb entries")
---
 net/bridge/br_mdb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index c11cf2611db0..1198a3dbad95 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -351,7 +351,6 @@ static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port,
 	if (state == MDB_TEMPORARY)
 		mod_timer(&p->timer, now + br->multicast_membership_interval);
 
-	br_mdb_notify(br->dev, port, group, RTM_NEWMDB);
 	return 0;
 }
 
-- 
1.9.1

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