ide: add ide_queue_pc_head() helper

* Move REQ_IDETAPE_* enums to <linux/ide.h>.

* Add ide_queue_pc_head() and convert ide-{floppy,tape}.c to use it
  instead of ide*_queue_pc_head().

* Remove no longer used ide*_queue_pc_head().

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>

1 files changed, 1 insertions, 35 deletions

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 5c879fbcca87..7103b98eb53a 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -159,20 +159,6 @@ struct idetape_bh {
 #define IDETAPE_LU_RETENSION_MASK       2
 #define IDETAPE_LU_EOT_MASK             4
 
-/*
- * Special requests for our block device strategy routine.
- *
- * In order to service a character device command, we add special requests to
- * the tail of our block device request queue and wait for their completion.
- */
-
-enum {
-        REQ_IDETAPE_PC1         = (1 << 0), /* packet command (first stage) */
-        REQ_IDETAPE_PC2         = (1 << 1), /* packet command (second stage) */
-        REQ_IDETAPE_READ        = (1 << 2),
-        REQ_IDETAPE_WRITE       = (1 << 3),
-};
-
 /* Error codes returned in rq->errors to the higher part of the driver. */
 #define IDETAPE_ERROR_GENERAL           101
 #define IDETAPE_ERROR_FILEMARK          102
@@ -613,26 +599,6 @@ static void idetape_create_request_sense_cmd(struct ide_atapi_pc *pc)
 }
 
 /*
- * Generate a new packet command request in front of the request queue, before
- * the current request, so that it will be processed immediately, on the next
- * pass through the driver.
- */
-static void idetape_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc,
-                                  struct request *rq)
-{
-        struct ide_tape_obj *tape = drive->driver_data;
-
-        blk_rq_init(NULL, rq);
-        rq->cmd_type = REQ_TYPE_SPECIAL;
-        rq->cmd_flags |= REQ_PREEMPT;
-        rq->buffer = (char *) pc;
-        rq->rq_disk = tape->disk;
-        memcpy(rq->cmd, pc->c, 12);
-        rq->cmd[13] = REQ_IDETAPE_PC1;
-        ide_do_drive_cmd(drive, rq);
-}
-
-/*
  *      idetape_retry_pc is called when an error was detected during the
  *      last packet command. We queue a request sense packet command in
  *      the head of the request list.
@@ -646,7 +612,7 @@ static void idetape_retry_pc(ide_drive_t *drive)
         (void)ide_read_error(drive);
         idetape_create_request_sense_cmd(pc);
         set_bit(IDE_AFLAG_IGNORE_DSC, &drive->atapi_flags);
-        idetape_queue_pc_head(drive, pc, rq);
+        ide_queue_pc_head(drive, tape->disk, pc, rq);
 }
 
 /*