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authorJason Wang <jasowang@redhat.com>2014-12-24 11:03:52 +0800
committerDavid S. Miller <davem@davemloft.net>2014-12-30 18:53:20 -0500
commit41f2f1273caee29ce9e2854c9aba996b56303b4a (patch)
treeeee0c03d8475947a8e1002abf175e2240f1cfd72 /drivers/net/virtio_net.c
parentdd450777990baae668c1143064f2f234dbab1b9b (diff)
downloadtalos-op-linux-41f2f1273caee29ce9e2854c9aba996b56303b4a.tar.gz
talos-op-linux-41f2f1273caee29ce9e2854c9aba996b56303b4a.zip
virtio-net: don't do header check for dodgy gso packets
There's no need to do header check for virtio-net since: - Host sets dodgy for all gso packets from guest and check the header. - Host should be prepared for all kinds of evil packets from guest, since malicious guest can send any kinds of packet. So this patch sets NETIF_F_GSO_ROBUST for virtio-net to skip the check. Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michael S. Tsirkin <mst@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 5ca97713bfb3..11e2e8131359 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1759,6 +1759,8 @@ static int virtnet_probe(struct virtio_device *vdev)
if (virtio_has_feature(vdev, VIRTIO_NET_F_HOST_ECN))
dev->hw_features |= NETIF_F_TSO_ECN;
+ dev->features |= NETIF_F_GSO_ROBUST;
+
if (gso)
dev->features |= dev->hw_features & NETIF_F_ALL_TSO;
/* (!csum && gso) case will be fixed by register_netdev() */
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