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bridge: reset bridge mtu after deleting an interface

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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>
This commit is contained in:
Venkat Venkatsubra 2015-03-13 07:08:22 -07:00 committed by David S. Miller
parent 07c2171570
commit 4c906c2798
1 changed files with 2 additions and 0 deletions
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2
net/bridge/br_if.c
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@ -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);