From: Vlad Yasevich Date: Thu, 31 Jul 2014 14:30:25 +0000 (-0400) Subject: macvlan: Initialize vlan_features to turn on offload support. X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=081e83a78db9b0ae1f5eabc2dedecc865f509b98;p=deliverable%2Flinux.git macvlan: Initialize vlan_features to turn on offload support. Macvlan devices do not initialize vlan_features. As a result, any vlan devices configured on top of macvlans perform very poorly. Initialize vlan_features based on the vlan features of the lower-level device. Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller --- diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 958df383068a..ef8a5c20236a 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -646,6 +646,7 @@ static int macvlan_init(struct net_device *dev) (lowerdev->state & MACVLAN_STATE_MASK); dev->features = lowerdev->features & MACVLAN_FEATURES; dev->features |= ALWAYS_ON_FEATURES; + dev->vlan_features = lowerdev->vlan_features & MACVLAN_FEATURES; dev->gso_max_size = lowerdev->gso_max_size; dev->iflink = lowerdev->ifindex; dev->hard_header_len = lowerdev->hard_header_len;