[3.16.y-ckt stable] Patch "bridge: mdb: start delete timer for temp static entries" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    bridge: mdb: start delete timer for temp static entries

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt16.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

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>From e64a0c1abe7da9f865b348b502c1630c613f5ef5 Mon Sep 17 00:00:00 2001
From: Satish Ashok <sashok at cumulusnetworks.com>
Date: Mon, 6 Jul 2015 05:53:35 -0700
Subject: bridge: mdb: start delete timer for temp static entries

commit f7e2965db17dd3b60f05fad88e7afc79ea75b48f upstream.

Start the delete timer when adding temp static entries so they can expire.

Signed-off-by: Satish Ashok <sashok at cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay at cumulusnetworks.com>
Fixes: ccb1c31a7a87 ("bridge: add flags to distinguish permanent mdb entires")
Signed-off-by: David S. Miller <davem at davemloft.net>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 net/bridge/br_mdb.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index d8b1833a363e..21927405cf4e 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -322,6 +322,7 @@ static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port,
 	struct net_bridge_port_group *p;
 	struct net_bridge_port_group __rcu **pp;
 	struct net_bridge_mdb_htable *mdb;
+	unsigned long now = jiffies;
 	int err;

 	mdb = mlock_dereference(br->mdb, br);
@@ -346,6 +347,8 @@ static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port,
 	if (unlikely(!p))
 		return -ENOMEM;
 	rcu_assign_pointer(*pp, p);
+	if (state == MDB_TEMPORARY)
+		mod_timer(&p->timer, now + br->multicast_membership_interval);

 	br_mdb_notify(br->dev, port, group, RTM_NEWMDB);
 	return 0;