scsi: csiostor: Use scsi_cmd_to_rq() instead of scsi_cmnd.request

Prepare for removal of the request pointer by using scsi_cmd_to_rq()
instead. This patch does not change any functionality.

Link: https://lore.kernel.org/r/20210809230355.8186-18-bvanassche@acm.orgSigned-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/csiostor/csio_scsi.c

@@ -1786,7 +1786,7 @@ csio_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmnd)
 	struct csio_scsi_qset *sqset;
 	struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 
-	sqset = &hw->sqset[ln->portid][blk_mq_rq_cpu(cmnd->request)];
+	sqset = &hw->sqset[ln->portid][blk_mq_rq_cpu(scsi_cmd_to_rq(cmnd))];
 
 	nr = fc_remote_port_chkready(rport);
 	if (nr) {
@@ -1989,13 +1989,13 @@ csio_eh_abort_handler(struct scsi_cmnd *cmnd)
 		csio_info(hw,
 			"Aborted SCSI command to (%d:%llu) tag %u\n",
 			cmnd->device->id, cmnd->device->lun,
-			cmnd->request->tag);
+			scsi_cmd_to_rq(cmnd)->tag);
 		return SUCCESS;
 	} else {
 		csio_info(hw,
 			"Failed to abort SCSI command, (%d:%llu) tag %u\n",
 			cmnd->device->id, cmnd->device->lun,
-			cmnd->request->tag);
+			scsi_cmd_to_rq(cmnd)->tag);
 		return FAILED;
 	}
 }