ide: add pointer to the current packet command to ide_drive_t

* Add pointer to the current packet command (struct ide_atapi_pc *pc)
  to ide_drive_t and use it instead of the pointer in struct ide_*_obj.

* Use drive->pc in ide_{issue,transfer}_pc() and ide_pc_intr()
  instead of 'pc' argument.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index fb27c94aeb0d..0069c4f08244 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -204,12 +204,13 @@ int ide_set_media_lock(ide_drive_t *drive, struct gendisk *disk, int on)
 EXPORT_SYMBOL_GPL(ide_set_media_lock);
 
 /* TODO: unify the code thus making some arguments go away */
-ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc,
+ide_startstop_t ide_pc_intr(ide_drive_t *drive,
         ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry,
         void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *),
         void (*retry_pc)(ide_drive_t *),
         int (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int))
 {
+        struct ide_atapi_pc *pc = drive->pc;
         ide_hwif_t *hwif = drive->hwif;
         struct request *rq = hwif->hwgroup->rq;
         const struct ide_tp_ops *tp_ops = hwif->tp_ops;
@@ -416,10 +417,11 @@ static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason)
         return ireason;
 }
 
-ide_startstop_t ide_transfer_pc(ide_drive_t *drive, struct ide_atapi_pc *pc,
+ide_startstop_t ide_transfer_pc(ide_drive_t *drive,
                                 ide_handler_t *handler, unsigned int timeout,
                                 ide_expiry_t *expiry)
 {
+        struct ide_atapi_pc *pc = drive->pc;
         ide_hwif_t *hwif = drive->hwif;
         struct request *rq = hwif->hwgroup->rq;
         ide_startstop_t startstop;
@@ -458,10 +460,11 @@ ide_startstop_t ide_transfer_pc(ide_drive_t *drive, struct ide_atapi_pc *pc,
 }
 EXPORT_SYMBOL_GPL(ide_transfer_pc);
 
-ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc,
+ide_startstop_t ide_issue_pc(ide_drive_t *drive,
                              ide_handler_t *handler, unsigned int timeout,
                              ide_expiry_t *expiry)
 {
+        struct ide_atapi_pc *pc = drive->pc;
         ide_hwif_t *hwif = drive->hwif;
         u16 bcount;
         u8 dma = 0;