ide-tape: make room for packet command ids in rq->cmd
ide-tape uses rq->cmd for special commands from the chrdev interface so move those to byte 13 (BLK_MAX_CDB = 16) since a packet cmd is max 12 bytes. There should be no functionality change resulting from this patch. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
parent
20cd93be67
commit
83dd573513
|
@ -703,7 +703,7 @@ static void idetape_init_rq(struct request *rq, u8 cmd)
|
|||
{
|
||||
blk_rq_init(NULL, rq);
|
||||
rq->cmd_type = REQ_TYPE_SPECIAL;
|
||||
rq->cmd[0] = cmd;
|
||||
rq->cmd[13] = cmd;
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -1019,7 +1019,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
|
|||
*/
|
||||
stat = hwif->tp_ops->read_status(hwif);
|
||||
|
||||
if (!drive->dsc_overlap && !(rq->cmd[0] & REQ_IDETAPE_PC2))
|
||||
if (!drive->dsc_overlap && !(rq->cmd[13] & REQ_IDETAPE_PC2))
|
||||
set_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags);
|
||||
|
||||
if (drive->post_reset == 1) {
|
||||
|
@ -1036,7 +1036,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
|
|||
} else if (time_after(jiffies, tape->dsc_timeout)) {
|
||||
printk(KERN_ERR "ide-tape: %s: DSC timeout\n",
|
||||
tape->name);
|
||||
if (rq->cmd[0] & REQ_IDETAPE_PC2) {
|
||||
if (rq->cmd[13] & REQ_IDETAPE_PC2) {
|
||||
idetape_media_access_finished(drive);
|
||||
return ide_stopped;
|
||||
} else {
|
||||
|
@ -1049,27 +1049,27 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
|
|||
idetape_postpone_request(drive);
|
||||
return ide_stopped;
|
||||
}
|
||||
if (rq->cmd[0] & REQ_IDETAPE_READ) {
|
||||
if (rq->cmd[13] & REQ_IDETAPE_READ) {
|
||||
pc = idetape_next_pc_storage(drive);
|
||||
ide_tape_create_rw_cmd(tape, pc, rq->current_nr_sectors,
|
||||
(struct idetape_bh *)rq->special,
|
||||
READ_6);
|
||||
goto out;
|
||||
}
|
||||
if (rq->cmd[0] & REQ_IDETAPE_WRITE) {
|
||||
if (rq->cmd[13] & REQ_IDETAPE_WRITE) {
|
||||
pc = idetape_next_pc_storage(drive);
|
||||
ide_tape_create_rw_cmd(tape, pc, rq->current_nr_sectors,
|
||||
(struct idetape_bh *)rq->special,
|
||||
WRITE_6);
|
||||
goto out;
|
||||
}
|
||||
if (rq->cmd[0] & REQ_IDETAPE_PC1) {
|
||||
if (rq->cmd[13] & REQ_IDETAPE_PC1) {
|
||||
pc = (struct ide_atapi_pc *) rq->buffer;
|
||||
rq->cmd[0] &= ~(REQ_IDETAPE_PC1);
|
||||
rq->cmd[0] |= REQ_IDETAPE_PC2;
|
||||
rq->cmd[13] &= ~(REQ_IDETAPE_PC1);
|
||||
rq->cmd[13] |= REQ_IDETAPE_PC2;
|
||||
goto out;
|
||||
}
|
||||
if (rq->cmd[0] & REQ_IDETAPE_PC2) {
|
||||
if (rq->cmd[13] & REQ_IDETAPE_PC2) {
|
||||
idetape_media_access_finished(drive);
|
||||
return ide_stopped;
|
||||
}
|
||||
|
@ -1281,7 +1281,7 @@ static int idetape_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc)
|
|||
|
||||
rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
|
||||
rq->cmd_type = REQ_TYPE_SPECIAL;
|
||||
rq->cmd[0] = REQ_IDETAPE_PC1;
|
||||
rq->cmd[13] = REQ_IDETAPE_PC1;
|
||||
rq->buffer = (char *)pc;
|
||||
error = blk_execute_rq(drive->queue, tape->disk, rq, 0);
|
||||
blk_put_request(rq);
|
||||
|
@ -1465,7 +1465,7 @@ static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int blocks,
|
|||
|
||||
rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
|
||||
rq->cmd_type = REQ_TYPE_SPECIAL;
|
||||
rq->cmd[0] = cmd;
|
||||
rq->cmd[13] = cmd;
|
||||
rq->rq_disk = tape->disk;
|
||||
rq->special = (void *)bh;
|
||||
rq->sector = tape->first_frame;
|
||||
|
|
Loading…
Reference in New Issue