Staging: hv: Get rid of lun_id from struct hv_storvsc_request

In preparation for consolidating all I/O request state, get rid of the
lun_id field from struct hv_storvsc_request and instead use the
equivalent  state in struct vmscsi_request - lun field.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/blkvsc_drv.c

@@ -946,7 +946,7 @@ static int blkvsc_submit_request(struct blkvsc_request *blkvsc_req,
 	vm_srb->port_number = blkdev->port;
 	vm_srb->path_id = blkdev->path;
 	vm_srb->target_id = blkdev->target;
-	storvsc_req->lun_id = 0;	 /* this is not really used at all */
+	vm_srb->lun = 0;	 /* this is not really used at all */
 
 	storvsc_req->cdb_len = blkvsc_req->cmd_len;
 	storvsc_req->cdb = blkvsc_req->cmnd;

drivers/staging/hv/storvsc.c

@@ -531,9 +531,9 @@ int stor_vsc_on_io_request(struct hv_device *device,
 		   "Extension %p", device, stor_device, request,
 		   request_extension);
 
-	DPRINT_DBG(STORVSC, "req %p len %d lun %d cdblen %d",
+	DPRINT_DBG(STORVSC, "req %p len %d cdblen %d",
 		   request, request->data_buffer.len,
-		   request->lun_id, request->cdb_len);
+		   request->cdb_len);
 
 	if (!stor_device) {
 		DPRINT_ERR(STORVSC, "unable to get stor device..."
@@ -549,7 +549,6 @@ int stor_vsc_on_io_request(struct hv_device *device,
 
 	vstor_packet->vm_srb.length = sizeof(struct vmscsi_request);
 
-	vstor_packet->vm_srb.lun = request->lun_id;
 
 	vstor_packet->vm_srb.sense_info_length = SENSE_BUFFER_SIZE;
 

drivers/staging/hv/storvsc_api.h

@@ -66,7 +66,6 @@ struct storvsc_request_extension {
 };
 
 struct hv_storvsc_request {
-	u32 lun_id;
 	u8 *cdb;
 	u32 cdb_len;
 	u32 status;

drivers/staging/hv/storvsc_drv.c

@@ -777,7 +777,7 @@ static int storvsc_queuecommand_lck(struct scsi_cmnd *scmnd,
 	vm_srb->port_number = host_device_ctx->port;
 	vm_srb->path_id = scmnd->device->channel;
 	vm_srb->target_id = scmnd->device->id;
-	request->lun_id = scmnd->device->lun;
+	vm_srb->lun = scmnd->device->lun;
 
 	/* ASSERT(scmnd->cmd_len <= 16); */
 	request->cdb_len = scmnd->cmd_len;