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bridge: mdb: fix double add notification 

[ Upstream commit 5ebc784625ea68a9570d1f70557e7932988cd1b4 ]

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@debian:~# 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@debian:~# bridge monitor all
 [MDB]dev br0 port eth1 grp 239.0.0.1 permanent

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Fixes: cfd5675435 ("bridge: add support of adding and deleting mdb entries")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nikolay Aleksandrov 2015-07-13 06:36:19 -07:00 committed by Greg Kroah-Hartman
parent 5fa39f1603
commit 8d228c93f3
1 changed files with 0 additions and 1 deletions
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1
net/bridge/br_mdb.c
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@ -345,7 +345,6 @@ static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port,
return -ENOMEM;
rcu_assign_pointer(*pp, p);
br_mdb_notify(br->dev, port, group, RTM_NEWMDB);
return 0;
}