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

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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;