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Date: Wed, 15 Jul 2015 14:55:11 +0200 From: Paolo Bonzini <pbonzini@...hat.com> To: "Michael S. Tsirkin" <mst@...hat.com>, linux-kernel@...r.kernel.org Cc: virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org, Jason Wang <jasowang@...hat.com>, virtio-dev@...ts.oasis-open.org 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@...hat.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@...hat.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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