IMPOSSIBLE_SCSI_STATUS
ucmd->uscsi_rqstatus = IMPOSSIBLE_SCSI_STATUS;
if (ucmd->uscsi_rqstatus == IMPOSSIBLE_SCSI_STATUS) {
ucmd->uscsi_rqstatus = IMPOSSIBLE_SCSI_STATUS;
if (ucmd->uscsi_rqstatus == IMPOSSIBLE_SCSI_STATUS) {
ucmd.uscsi_rqstatus = IMPOSSIBLE_SCSI_STATUS;