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Subject: Re: [virtio-dev] [PATCH] virtio_net: don't require ANY_LAYOUT with VERSION_1
On 15/07/2015 14:26, Michael S. Tsirkin wrote: > 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> > --- > drivers/net/virtio_net.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > index 63c7810..7fbca37 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)) > Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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