vhost/scsi: fix up req type endian-ness

commit 295c1b9852d000580786375304a9800bd9634d15 upstream.

vhost/scsi doesn't handle type conversion correctly
for request type when using virtio 1.0 and up for BE,
or cross-endian platforms.

Fix it up using vhost_32_to_cpu.

Cc: stable@vger.kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 8b104f76f3245c1ffda8a589599edc625b94388d..675a83659c982ce41c6d90b919fafd6713ed682d 100644 (file)
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -1215,7 +1215,7 @@ vhost_scsi_ctl_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
                        continue;
                }
 
-               switch (v_req.type) {
+               switch (vhost32_to_cpu(vq, v_req.type)) {
                case VIRTIO_SCSI_T_TMF:
                        vc.req = &v_req.tmf;
                        vc.req_size = sizeof(struct virtio_scsi_ctrl_tmf_req);