3540 		struct mtop mtc;  in st_ioctl_common()  local
3542 		if (_IOC_SIZE(cmd_in) != sizeof(mtc)) {  in st_ioctl_common()
3547 		i = copy_from_user(&mtc, p, sizeof(struct mtop));  in st_ioctl_common()
3553 		if (mtc.mt_op == MTSETDRVBUFFER && !capable(CAP_SYS_ADMIN)) {  in st_ioctl_common()
3560 		    (mtc.mt_op != MTSETDRVBUFFER &&  in st_ioctl_common()
3561 		     (mtc.mt_count & MT_ST_OPTIONS) == 0)) {  in st_ioctl_common()
3569 				if (mtc.mt_op == MTFSF || mtc.mt_op == MTFSFM ||  in st_ioctl_common()
3570                                     mtc.mt_op == MTEOM) {  in st_ioctl_common()
3571 					mtc.mt_count -= 1;  in st_ioctl_common()
3574 				} else if (mtc.mt_op == MTBSF || mtc.mt_op == MTBSFM) {  in st_ioctl_common()
3575 					mtc.mt_count += 1;  in st_ioctl_common()
3581 			if (mtc.mt_op == MTSEEK) {  in st_ioctl_common()
3587 				i = mtc.mt_op == MTREW || mtc.mt_op == MTOFFL ||  in st_ioctl_common()
3588 				    mtc.mt_op == MTRETEN || mtc.mt_op == MTEOM ||  in st_ioctl_common()
3589 				    mtc.mt_op == MTLOCK || mtc.mt_op == MTLOAD ||  in st_ioctl_common()
3590 				    mtc.mt_op == MTFSF || mtc.mt_op == MTFSFM ||  in st_ioctl_common()
3591 				    mtc.mt_op == MTBSF || mtc.mt_op == MTBSFM ||  in st_ioctl_common()
3592 				    mtc.mt_op == MTCOMPRESSION;  in st_ioctl_common()
3600 			    (mtc.mt_op == MTREW || mtc.mt_op == MTOFFL ||  in st_ioctl_common()
3601 			     mtc.mt_op == MTSEEK ||  in st_ioctl_common()
3602 			     mtc.mt_op == MTBSF || mtc.mt_op == MTBSFM)) {  in st_ioctl_common()
3608 				if (mtc.mt_op == MTBSF || mtc.mt_op == MTBSFM)  in st_ioctl_common()
3609 					mtc.mt_count++;  in st_ioctl_common()
3619 			if (mtc.mt_op != MTREW &&  in st_ioctl_common()
3620 			    mtc.mt_op != MTOFFL &&  in st_ioctl_common()
3621 			    mtc.mt_op != MTRETEN &&  in st_ioctl_common()
3622 			    mtc.mt_op != MTERASE &&  in st_ioctl_common()
3623 			    mtc.mt_op != MTSEEK &&  in st_ioctl_common()
3624 			    mtc.mt_op != MTEOM) {  in st_ioctl_common()
3633 		if (mtc.mt_op != MTNOP && mtc.mt_op != MTSETBLK &&  in st_ioctl_common()
3634 		    mtc.mt_op != MTSETDENSITY && mtc.mt_op != MTWSM &&  in st_ioctl_common()
3635 		    mtc.mt_op != MTSETDRVBUFFER && mtc.mt_op != MTSETPART)  in st_ioctl_common()
3638 		if (mtc.mt_op == MTOFFL && STp->door_locked != ST_UNLOCKED)  in st_ioctl_common()
3641 		if (mtc.mt_op == MTSETDRVBUFFER &&  in st_ioctl_common()
3642 		    (mtc.mt_count & MT_ST_OPTIONS) != 0) {  in st_ioctl_common()
3643 			retval = st_set_options(STp, mtc.mt_count);  in st_ioctl_common()
3647 		if (mtc.mt_op == MTSETPART) {  in st_ioctl_common()
3649 			    mtc.mt_count < 0 || mtc.mt_count >= ST_NBR_PARTITIONS) {  in st_ioctl_common()
3653 			if (mtc.mt_count >= STp->nbr_partitions &&  in st_ioctl_common()
3658 			if (mtc.mt_count >= STp->nbr_partitions) {  in st_ioctl_common()
3662 			STp->new_partition = mtc.mt_count;  in st_ioctl_common()
3667 		if (mtc.mt_op == MTMKPART) {  in st_ioctl_common()
3677 			i = partition_tape(STp, mtc.mt_count);  in st_ioctl_common()
3688 			STp->nbr_partitions = mtc.mt_count != 0 ? 2 : 1;  in st_ioctl_common()
3694 		if (mtc.mt_op == MTSEEK) {  in st_ioctl_common()
3695 			i = set_location(STp, mtc.mt_count, STp->new_partition, 0);  in st_ioctl_common()
3702 		if (mtc.mt_op == MTUNLOAD || mtc.mt_op == MTOFFL) {  in st_ioctl_common()
3707 		if (mtc.mt_op == MTLOAD) {  in st_ioctl_common()
3708 			retval = do_load_unload(STp, file, max(1, mtc.mt_count));  in st_ioctl_common()
3712 		if (mtc.mt_op == MTLOCK || mtc.mt_op == MTUNLOCK) {  in st_ioctl_common()
3713 			retval = do_door_lock(STp, (mtc.mt_op == MTLOCK));  in st_ioctl_common()
3723 		if (mtc.mt_op == MTCOMPRESSION)  in st_ioctl_common()
3724 			retval = st_compression(STp, (mtc.mt_count & 1));  in st_ioctl_common()
3726 			retval = st_int_ioctl(STp, mtc.mt_op, mtc.mt_count);  in st_ioctl_common()