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Commit 3518e40b authored by Paolo Abeni's avatar Paolo Abeni Committed by David S. Miller
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ipvlan: forbid vlan devices on top of ipvlan 



Currently we allow the creation of 8021q devices on top of
ipvlan, but such devices are nonfunctional, as the underlying
ipvlan rx_hanlder hook can't match the relevant traffic.

Be explicit and forbid the creation of such nonfunctional devices.

Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 51568d69

drivers/net/ipvlan/ipvlan_main.c

+1 −1
Original line number Diff line number Diff line
@@ -178,7 +178,7 @@ static int ipvlan_init(struct net_device *dev) 
	dev->state = (dev->state & ~IPVLAN_STATE_MASK) |

		     (phy_dev->state & IPVLAN_STATE_MASK);

	dev->features = phy_dev->features & IPVLAN_FEATURES;

	dev->features |= NETIF_F_LLTX;

	dev->features |= NETIF_F_LLTX | NETIF_F_VLAN_CHALLENGED;

	dev->gso_max_size = phy_dev->gso_max_size;

	dev->gso_max_segs = phy_dev->gso_max_segs;

	dev->hard_header_len = phy_dev->hard_header_len;