[Qemu-devel] [PATCH 4/4] virtio-scsi: clean out duplicate cdb field

["Michael S. Tsirkin" <mst@redhat.com>]

cdb is now part of cmd, drop it from req.
There's also nothing to check using build assert now.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 include/hw/virtio/virtio-scsi.h | 7 +------
 hw/scsi/virtio-scsi.c           | 2 +-
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h
index 9423865..e3f27a6 100644
--- a/include/hw/virtio/virtio-scsi.h
+++ b/include/hw/virtio/virtio-scsi.h
@@ -109,8 +109,7 @@ typedef struct VirtIOSCSIReq {
     /* Note:
      * - fields before elem are initialized by virtio_scsi_init_req;
      * - elem is uninitialized at the time of allocation.
-     * - fields after elem (except the ending cdb[]) are zeroed by
-     *   virtio_scsi_init_req.
+     * - fields after elem are zeroed by virtio_scsi_init_req.
      * */
 
     VirtQueueElement elem;
@@ -137,16 +136,12 @@ typedef struct VirtIOSCSIReq {
     union {
         struct {
             VirtIOSCSICmdReq  cmd;
-            uint8_t           cdb[];
         } QEMU_PACKED;
         VirtIOSCSICtrlTMFReq  tmf;
         VirtIOSCSICtrlANReq   an;
     } req;
 } VirtIOSCSIReq;
 
-QEMU_BUILD_BUG_ON(offsetof(VirtIOSCSIReq, req.cdb) !=
-                  offsetof(VirtIOSCSIReq, req.cmd) + sizeof(VirtIOSCSICmdReq));
-
 #define DEFINE_VIRTIO_SCSI_PROPERTIES(_state, _conf_field)                     \
     DEFINE_PROP_UINT32("num_queues", _state, _conf_field.num_queues, 1),       \
     DEFINE_PROP_UINT32("max_sectors", _state, _conf_field.max_sectors, 0xFFFF),\
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index ba51e06..da0cff8 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -544,7 +544,7 @@ bool virtio_scsi_handle_cmd_req_prepare(VirtIOSCSI *s, VirtIOSCSIReq *req)
     }
     req->sreq = scsi_req_new(d, req->req.cmd.tag,
                              virtio_scsi_get_lun(req->req.cmd.lun),
-                             req->req.cdb, req);
+                             req->req.cmd.cdb, req);
 
     if (req->sreq->cmd.mode != SCSI_XFER_NONE
         && (req->sreq->cmd.mode != req->mode ||
-- 
MST