ide: add ide_queue_pc_tail() helper
* Add ide_queue_pc_tail() and convert ide-{floppy,tape}.c to use it
instead of ide*_queue_pc_tail().
* Remove no longer used ide*_queue_pc_tail().
There should be no functional changes caused by this patch.
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index ddce28e..de611c5 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -554,32 +554,13 @@
}
/*
- * Add a special packet command request to the tail of the request queue,
- * and wait for it to be serviced.
- */
-static int idefloppy_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc)
-{
- struct ide_floppy_obj *floppy = drive->driver_data;
- struct request *rq;
- int error;
-
- rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
- rq->buffer = (char *) pc;
- rq->cmd_type = REQ_TYPE_SPECIAL;
- memcpy(rq->cmd, pc->c, 12);
- error = blk_execute_rq(drive->queue, floppy->disk, rq, 0);
- blk_put_request(rq);
-
- return error;
-}
-
-/*
* Look at the flexible disk page parameters. We ignore the CHS capacity
* parameters and use the LBA parameters instead.
*/
static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
+ struct gendisk *disk = floppy->disk;
struct ide_atapi_pc pc;
u8 *page;
int capacity, lba_capacity;
@@ -588,13 +569,13 @@
idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE);
- if (idefloppy_queue_pc_tail(drive, &pc)) {
+ if (ide_queue_pc_tail(drive, disk, &pc)) {
printk(KERN_ERR "ide-floppy: Can't get flexible disk page"
" parameters\n");
return 1;
}
floppy->wp = !!(pc.buf[3] & 0x80);
- set_disk_ro(floppy->disk, floppy->wp);
+ set_disk_ro(disk, floppy->wp);
page = &pc.buf[8];
transfer_rate = be16_to_cpup((__be16 *)&pc.buf[8 + 2]);
@@ -638,7 +619,7 @@
idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_CAPABILITIES_PAGE);
pc.flags |= PC_FLAG_SUPPRESS_ERROR;
- if (idefloppy_queue_pc_tail(drive, &pc))
+ if (ide_queue_pc_tail(drive, floppy->disk, &pc))
return 1;
floppy->srfp = pc.buf[8 + 2] & 0x40;
@@ -652,6 +633,7 @@
static int ide_floppy_get_capacity(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
+ struct gendisk *disk = floppy->disk;
struct ide_atapi_pc pc;
u8 *cap_desc;
u8 header_len, desc_cnt;
@@ -664,7 +646,7 @@
set_capacity(floppy->disk, 0);
idefloppy_create_read_capacity_cmd(&pc);
- if (idefloppy_queue_pc_tail(drive, &pc)) {
+ if (ide_queue_pc_tail(drive, disk, &pc)) {
printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n");
return 1;
}
@@ -739,7 +721,8 @@
if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE))
(void) ide_floppy_get_flexible_disk_page(drive);
- set_capacity(floppy->disk, floppy->blocks * floppy->bs_factor);
+ set_capacity(disk, floppy->blocks * floppy->bs_factor);
+
return rc;
}
@@ -764,6 +747,7 @@
static int ide_floppy_get_format_capacities(ide_drive_t *drive, int __user *arg)
{
+ struct ide_floppy_obj *floppy = drive->driver_data;
struct ide_atapi_pc pc;
u8 header_len, desc_cnt;
int i, blocks, length, u_array_size, u_index;
@@ -776,7 +760,7 @@
return -EINVAL;
idefloppy_create_read_capacity_cmd(&pc);
- if (idefloppy_queue_pc_tail(drive, &pc)) {
+ if (ide_queue_pc_tail(drive, floppy->disk, &pc)) {
printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n");
return -EIO;
}
@@ -838,7 +822,7 @@
if (floppy->srfp) {
idefloppy_create_request_sense_cmd(&pc);
- if (idefloppy_queue_pc_tail(drive, &pc))
+ if (ide_queue_pc_tail(drive, floppy->disk, &pc))
return -EIO;
if (floppy->sense_key == 2 &&
@@ -1008,12 +992,13 @@
static void ide_floppy_set_media_lock(ide_drive_t *drive, int on)
{
+ struct ide_floppy_obj *floppy = drive->driver_data;
struct ide_atapi_pc pc;
/* IOMEGA Clik! drives do not support lock/unlock commands */
if ((drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE) == 0) {
idefloppy_create_prevent_cmd(&pc, on);
- (void)idefloppy_queue_pc_tail(drive, &pc);
+ (void)ide_queue_pc_tail(drive, floppy->disk, &pc);
}
}
@@ -1042,9 +1027,9 @@
ide_init_pc(&pc);
pc.c[0] = GPCMD_TEST_UNIT_READY;
- if (idefloppy_queue_pc_tail(drive, &pc)) {
+ if (ide_queue_pc_tail(drive, disk, &pc)) {
idefloppy_create_start_stop_cmd(&pc, 1);
- (void) idefloppy_queue_pc_tail(drive, &pc);
+ (void)ide_queue_pc_tail(drive, disk, &pc);
}
if (ide_floppy_get_capacity(drive)
@@ -1123,7 +1108,7 @@
if (cmd == CDROMEJECT) {
idefloppy_create_start_stop_cmd(pc, 2);
- (void) idefloppy_queue_pc_tail(floppy->drive, pc);
+ (void)ide_queue_pc_tail(drive, floppy->disk, pc);
}
return 0;
@@ -1168,7 +1153,7 @@
(void) idefloppy_get_sfrp_bit(drive);
idefloppy_create_format_unit_cmd(&pc, blocks, length, flags);
- if (idefloppy_queue_pc_tail(drive, &pc))
+ if (ide_queue_pc_tail(drive, floppy->disk, &pc))
err = -EIO;
out: