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Subject[PATCH 20/22] ide: add ->pc_{update,io}_buffers methods
Add ->pc_{update,io}_buffers methods to ide_drive_t and use
them instead of {update,io}_buffers ide_pc_intr() arguments.
There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ide/ide-atapi.c | 14 ++++++--------
drivers/ide/ide-floppy.c | 7 ++++---
drivers/ide/ide-tape.c | 7 ++++---
drivers/scsi/ide-scsi.c | 6 ++++--
include/linux/ide.h | 9 +++++----
5 files changed, 23 insertions(+), 20 deletions(-)
Index: b/drivers/ide/ide-atapi.c
===================================================================
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -246,10 +246,7 @@ int ide_scsi_expiry(ide_drive_t *drive)
}
EXPORT_SYMBOL_GPL(ide_scsi_expiry);

-/* TODO: unify the code thus making some arguments go away */
-ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler,
- void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *),
- int (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int))
+ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler)
{
struct ide_atapi_pc *pc = drive->pc;
ide_hwif_t *hwif = drive->hwif;
@@ -290,8 +287,8 @@ ide_startstop_t ide_pc_intr(ide_drive_t
pc->flags |= PC_FLAG_DMA_ERROR;
} else {
pc->xferred = pc->req_xfer;
- if (update_buffers)
- update_buffers(drive, pc);
+ if (drive->pc_update_buffers)
+ drive->pc_update_buffers(drive, pc);
}
debug_log("%s: DMA finished\n", drive->name);
}
@@ -386,7 +383,8 @@ cmd_finished:
temp = 0;
if (temp) {
if (pc->sg)
- io_buffers(drive, pc, temp, 0);
+ drive->pc_io_buffers(drive, pc,
+ temp, 0);
else
tp_ops->input_data(drive, NULL,
pc->cur_pos, temp);
@@ -410,7 +408,7 @@ cmd_finished:
if ((drive->media == ide_floppy && !scsi && !pc->buf) ||
(drive->media == ide_tape && !scsi && pc->bh) ||
(scsi && pc->sg)) {
- int done = io_buffers(drive, pc, bcount,
+ int done = drive->pc_io_buffers(drive, pc, bcount,
!!(pc->flags & PC_FLAG_WRITING));

/* FIXME: don't do partial completions */
Index: b/drivers/ide/ide-floppy.c
===================================================================
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -195,8 +195,7 @@ static void ide_floppy_callback(ide_driv
/* The usual interrupt handler called during a packet command. */
static ide_startstop_t idefloppy_pc_intr(ide_drive_t *drive)
{
- return ide_pc_intr(drive, idefloppy_pc_intr, idefloppy_update_buffers,
- ide_io_buffers);
+ return ide_pc_intr(drive, idefloppy_pc_intr);
}

/*
@@ -635,7 +634,9 @@ static void idefloppy_setup(ide_drive_t

*((u16 *)&gcw) = id[ATA_ID_CONFIG];

- drive->pc_callback = ide_floppy_callback;
+ drive->pc_callback = ide_floppy_callback;
+ drive->pc_update_buffers = idefloppy_update_buffers;
+ drive->pc_io_buffers = ide_io_buffers;

if (((gcw[0] & 0x60) >> 5) == 1)
drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT;
Index: b/drivers/ide/ide-tape.c
===================================================================
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -627,8 +627,7 @@ static int ide_tape_io_buffers(ide_drive
*/
static ide_startstop_t idetape_pc_intr(ide_drive_t *drive)
{
- return ide_pc_intr(drive, idetape_pc_intr, idetape_update_buffers,
- ide_tape_io_buffers);
+ return ide_pc_intr(drive, idetape_pc_intr);
}

/*
@@ -2210,7 +2209,9 @@ static void idetape_setup(ide_drive_t *d
u8 gcw[2];
u16 *ctl = (u16 *)&tape->caps[12];

- drive->pc_callback = ide_tape_callback;
+ drive->pc_callback = ide_tape_callback;
+ drive->pc_update_buffers = idetape_update_buffers;
+ drive->pc_io_buffers = ide_tape_io_buffers;

spin_lock_init(&tape->lock);
drive->dsc_overlap = 1;
Index: b/drivers/scsi/ide-scsi.c
===================================================================
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -275,7 +275,7 @@ static int idescsi_end_request (ide_driv
*/
static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive)
{
- return ide_pc_intr(drive, idescsi_pc_intr, NULL, ide_io_buffers);
+ return ide_pc_intr(drive, idescsi_pc_intr);
}

static ide_startstop_t idescsi_transfer_pc(ide_drive_t *drive)
@@ -407,7 +407,9 @@ static void idescsi_setup (ide_drive_t *
set_bit(IDESCSI_LOG_CMD, &scsi->log);
#endif /* IDESCSI_DEBUG_LOG */

- drive->pc_callback = ide_scsi_callback;
+ drive->pc_callback = ide_scsi_callback;
+ drive->pc_update_buffers = NULL;
+ drive->pc_io_buffers = ide_io_buffers;

ide_proc_register_driver(drive, scsi->driver);
}
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -552,6 +552,10 @@ struct ide_drive_s {
/* callback for packet commands */
void (*pc_callback)(struct ide_drive_s *, int);

+ void (*pc_update_buffers)(struct ide_drive_s *, struct ide_atapi_pc *);
+ int (*pc_io_buffers)(struct ide_drive_s *, struct ide_atapi_pc *,
+ unsigned int, int);
+
unsigned long atapi_flags;

struct ide_atapi_pc request_sense_pc;
@@ -1173,10 +1177,7 @@ static inline unsigned long ide_scsi_get

int ide_scsi_expiry(ide_drive_t *);

-ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler,
- void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *),
- int (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned int,
- int));
+ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler);
ide_startstop_t ide_transfer_pc(ide_drive_t *,
ide_handler_t *, unsigned int, ide_expiry_t *);
ide_startstop_t ide_issue_pc(ide_drive_t *,

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