macvlan: Set IFF_UNICAST_FLT flag to prevent unnecessary promisc mode.

[ Upstream commit 87ab7f6f2874f1115817e394a7ed2dea1c72549e ]

Macvlan already supports hw address filters.  Set the IFF_UNICAST_FLT
so that it doesn't needlesly enter PROMISC mode when macvlans are
stacked.

Signed-of-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 97f342e..544ac06 100644 (file)
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -585,6 +585,7 @@ void macvlan_common_setup(struct net_device *dev)
        ether_setup(dev);
 
        dev->priv_flags        &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
+       dev->priv_flags        |= IFF_UNICAST_FLT;
        dev->netdev_ops         = &macvlan_netdev_ops;
        dev->destructor         = free_netdev;
        dev->header_ops         = &macvlan_hard_header_ops,