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[VLAN]: Don't synchronize addresses while the vlan device is down 

While the VLAN device is down, the unicast addresses are not configured
on the underlying device, so we shouldn't attempt to sync them.

Noticed by Dmitry Butskoy <buc@odusz.so-cdu.ru>

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-11-10 21:51:40 -08:00 committed by David S. Miller
parent 358352b8b8
commit d932e04a5e
1 changed files with 4 additions and 0 deletions
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4
net/8021q/vlan.c
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@ -636,6 +636,10 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
if (!vlandev)
continue;
flgs = vlandev->flags;
if (!(flgs & IFF_UP))
continue;
vlan_sync_address(dev, vlandev);
}
break;