From: Michael S. Tsirkin <mst@redhat.com>
Date: Fri, 10 Jul 2020 10:36:16 +0000 (-0400)
Subject: vhost/scsi: fix up req type endian-ness
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=295c1b9852d000580786375304a9800bd9634d15;p=linux.git

vhost/scsi: fix up req type endian-ness

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>
---

diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 6fb4d7ecfa19f..b22adf03f5842 100644
--- 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);