bridge: reset bridge mtu after deleting an interface
authorVenkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
Fri, 13 Mar 2015 14:08:22 +0000 (07:08 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sat, 14 Mar 2015 23:12:38 +0000 (19:12 -0400)
On adding an interface br_add_if() sets the MTU to the min of
all the interfaces. Do the same thing on removing an interface too
in br_del_if.

Signed-off-by: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/bridge/br_if.c

index b087d278c6793f48f413082ff60fd8abbea49ff3..1849d96b3c91d82e20f85ca2579546857343d0f2 100644 (file)
@@ -563,6 +563,8 @@ int br_del_if(struct net_bridge *br, struct net_device *dev)
         */
        del_nbp(p);
 
+       dev_set_mtu(br->dev, br_min_mtu(br));
+
        spin_lock_bh(&br->lock);
        changed_addr = br_stp_recalculate_bridge_id(br);
        spin_unlock_bh(&br->lock);