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>

parent 5f4c9760

drivers/s390/kvm/virtio_ccw.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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");