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authorMichael S. Tsirkin <mst@redhat.com>2015-07-15 15:26:19 +0300
committerDavid S. Miller <davem@davemloft.net>2015-07-20 22:43:33 +0300
commit75993300d008f418ee2569a632185fc1d7d50674 (patch)
treeb1551270c7cf2700446df3d7ed4d176cfebfb507 /drivers/net/virtio_net.c
parente2370f07cf703c0920c99bc24de3d152262738f0 (diff)
downloadlinux-75993300d008f418ee2569a632185fc1d7d50674.tar.xz
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>
Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 63c7810e1545..7fbca37a1adf 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -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))