macvlan: forbid L2 fowarding offload for macvtap

[~andy/linux] / drivers / net / macvlan.c

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 60406b01f9eb37b6a5728d18a72164b0a2598eb3..5360f73c9817f25b8b702c37da3e46111d6095ac 100644 (file)
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -338,6 +338,8 @@ static const struct header_ops macvlan_hard_header_ops = {
        .cache_update   = eth_header_cache_update,
 };
 
+static struct rtnl_link_ops macvlan_link_ops;
+
 static int macvlan_open(struct net_device *dev)
 {
        struct macvlan_dev *vlan = netdev_priv(dev);
@@ -353,7 +355,8 @@ static int macvlan_open(struct net_device *dev)
                goto hash_add;
        }
 
-       if (lowerdev->features & NETIF_F_HW_L2FW_DOFFLOAD) {
+       if (lowerdev->features & NETIF_F_HW_L2FW_DOFFLOAD &&
+           dev->rtnl_link_ops == &macvlan_link_ops) {
                vlan->fwd_priv =
                      lowerdev->netdev_ops->ndo_dfwd_add_station(lowerdev, dev);