driver_byte       426 block/bsg.c    	hdr->driver_status = driver_byte(rq->errors);
driver_byte       239 block/scsi_ioctl.c 	hdr->driver_status = driver_byte(rq->errors);
driver_byte       444 include/scsi/scsi.h #define suggestion(result)  (driver_byte(result) & SUGGEST_MASK)