virtio_ccw: future-proof finalize_features

We never negotiate revision > 1, but just to
make this code more likely to work when we do,
require VERSION_1 with any revision >= 1.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>

diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm/virtio_ccw.c
index f9f87ba..f92b9e6 100644 (file)
--- a/drivers/s390/kvm/virtio_ccw.c
+++ b/drivers/s390/kvm/virtio_ccw.c
@@ -758,7 +758,7 @@ static int virtio_ccw_finalize_features(struct virtio_device *vdev)
        struct virtio_feature_desc *features;
        struct ccw1 *ccw;
 
-       if (vcdev->revision == 1 &&
+       if (vcdev->revision >= 1 &&
            !__virtio_test_bit(vdev, VIRTIO_F_VERSION_1)) {
                dev_err(&vdev->dev, "virtio: device uses revision 1 "
                        "but does not have VIRTIO_F_VERSION_1\n");