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lec: Use rtnl lock/unlock when updating MTU 

The LECS response contains the MTU that should be used.  Correctly
synchronize with other layers when updating.

Signed-off-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
wifi-calibration
chas williams - CONTRACTOR 2014-08-14 09:19:47 -04:00 committed by David S. Miller
parent 02784f1b05
commit 6df378d2d1
1 changed files with 2 additions and 0 deletions
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2
net/atm/lec.c
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@ -410,9 +410,11 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
priv->lane2_ops = NULL;
if (priv->lane_version > 1)
priv->lane2_ops = &lane2_ops;
rtnl_lock();
if (dev_set_mtu(dev, mesg->content.config.mtu))
pr_info("%s: change_mtu to %d failed\n",
dev->name, mesg->content.config.mtu);
rtnl_unlock();
priv->is_proxy = mesg->content.config.is_proxy;
break;
case l_flush_tran_id: