[VLAN]: Don't synchronize addresses while the vlan device is down
Patrick McHardy [Sun, 11 Nov 2007 05:51:40 +0000 (21:51 -0800)]
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>

net/8021q/vlan.c

index 1037748..0fadbc6 100644 (file)
@@ -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;