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virtio_net: don't require ANY_LAYOUT with VERSION_1 

ANY_LAYOUT is a compatibility feature. It's implied
for VERSION_1 devices, and non-transitional devices
might not offer it. Change code to behave accordingly.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael S. Tsirkin 2015-07-15 15:26:19 +03:00 committed by David S. Miller
parent e2370f07cf
commit 75993300d0
1 changed files with 2 additions and 1 deletions
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3
drivers/net/virtio_net.c
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@ -1828,7 +1828,8 @@ static int virtnet_probe(struct virtio_device *vdev)
else
vi->hdr_len = sizeof(struct virtio_net_hdr);
if (virtio_has_feature(vdev, VIRTIO_F_ANY_LAYOUT))
if (virtio_has_feature(vdev, VIRTIO_F_ANY_LAYOUT) ||
virtio_has_feature(vdev, VIRTIO_F_VERSION_1))
vi->any_header_sg = true;
if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ))