veth: allow changing the mac address while interface is up

Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index e522ff7..24f6b27 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -264,6 +264,7 @@
 	ether_setup(dev);
 
 	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
+	dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
 
 	dev->netdev_ops = &veth_netdev_ops;
 	dev->ethtool_ops = &veth_ethtool_ops;