ide: merge ->atapi_*put_bytes and ->ata_*put_data methods

* Merge ->atapi_{in,out}put_bytes and ->ata_{in,out}put_data methods
  into new ->{in,out}put_data methods which take number of bytes to
  transfer as an argument and always do padding.

While at it:

* Use 'hwif' or 'drive->hwif' instead of 'HWIF(drive)'.

There should be no functional changes caused by this patch (all users
of ->ata_{in,out}put_data methods were using multiply-of-4 word counts).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

2 files changed, 26 insertions, 46 deletions

diff --git a/drivers/ide/legacy/falconide.c b/drivers/ide/legacy/falconide.c
index 32c044b17d4..83555ca513b 100644
--- a/drivers/ide/legacy/falconide.c
+++ b/drivers/ide/legacy/falconide.c
@@ -44,34 +44,26 @@
 int falconide_intr_lock;
 EXPORT_SYMBOL(falconide_intr_lock);
 
-static void falconide_atapi_input_bytes(ide_drive_t *drive, void *buf,
-					unsigned int len)
+static void falconide_input_data(ide_drive_t *drive, struct request *rq,
+				 void *buf, unsigned int len)
 {
-	insw_swapw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
-}
-
-static void falconide_atapi_output_bytes(ide_drive_t *drive, void *buf,
-					 unsigned int len)
-{
-	outsw_swapw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
-}
+	unsigned long data_addr = drive->hwif->io_ports.data_addr;
 
-static void falconide_ata_input_data(ide_drive_t *drive, struct request *rq,
-				     void *buf, unsigned int wcount)
-{
 	if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
-		return insw(drive->hwif->io_ports.data_addr, buf, wcount * 2);
+		return insw(data_addr, buf, (len + 1) / 2);
 
-	falconide_atapi_input_bytes(drive, buf, wcount * 4);
+	insw_swapw(data_addr, buf, (len + 1) / 2);
 }
 
-static void falconide_ata_output_data(ide_drive_t *drive, struct request *rq,
-				      void *buf, unsigned int wcount)
+static void falconide_output_data(ide_drive_t *drive, struct request *rq,
+				  void *buf, unsigned int len)
 {
+	unsigned long data_addr = drive->hwif->io_ports.data_addr;
+
 	if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
-		return outsw(drive->hwif->io_ports.data_addr, buf, wcount * 2);
+		return outsw(data_adr, buf, (len + 1) / 2);
 
-	falconide_atapi_output_bytes(drive, buf, wcount * 4);
+	outsw_swapw(data_addr, buf, (len + 1) / 2);
 }
 
 static void __init falconide_setup_ports(hw_regs_t *hw)
@@ -121,10 +113,8 @@ static int __init falconide_init(void)
 		ide_init_port_hw(hwif, &hw);
 
 		/* Atari has a byte-swapped IDE interface */
-		hwif->atapi_input_bytes  = falconide_atapi_input_bytes;
-		hwif->atapi_output_bytes = falconide_atapi_output_bytes;
-		hwif->ata_input_data	 = falconide_ata_input_data;
-		hwif->ata_output_data	 = falconide_ata_output_data;
+		hwif->input_data  = falconide_input_data;
+		hwif->output_data = falconide_output_data;
 
 		ide_get_lock(NULL, NULL);
 		ide_device_add(idx, NULL);
diff --git a/drivers/ide/legacy/q40ide.c b/drivers/ide/legacy/q40ide.c
index deae3d2ca65..6f535d00e63 100644
--- a/drivers/ide/legacy/q40ide.c
+++ b/drivers/ide/legacy/q40ide.c
@@ -72,34 +72,26 @@ static void q40_ide_setup_ports(hw_regs_t *hw, unsigned long base,
 	hw->ack_intr = ack_intr;
 }
 
-static void q40ide_atapi_input_bytes(ide_drive_t *drive, void *buf,
-				     unsigned int len)
+static void q40ide_input_data(ide_drive_t *drive, struct request *rq,
+			      void *buf, unsigned int len)
 {
-	insw_swapw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
-}
-
-static void q40ide_atapi_output_bytes(ide_drive_t *drive, void *buf,
-				      unsigned int len)
-{
-	outsw_swapw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
-}
+	unsigned long data_addr = drive->hwif->io_ports.data_addr;
 
-static void q40ide_ata_input_data(ide_drive_t *drive, struct request *rq,
-				  void *buf, unsigned int wcount)
-{
 	if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
-		return insw(drive->hwif->io_ports.data_addr, buf, wcount * 2);
+		return insw(data_addr, buf, (len + 1) / 2);
 
-	q40ide_atapi_input_bytes(drive, buf, wcount * 4);
+	insw_swapw(data_addr, buf, (len + 1) / 2);
 }
 
-static void q40ide_ata_output_data(ide_drive_t *drive, struct request *rq,
-				   void *buf, unsigned int wcount)
+static void q40ide_output_data(ide_drive_t *drive, struct request *rq,
+			       void *buf, unsigned int len)
 {
+	unsigned long data_addr = drive->hwif->io_ports.data_addr;
+
 	if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
-		return outsw(drive->hwif->io_ports.data_addr, buf, wcount * 2);
+		return outsw(data_addr, buf, (len + 1) / 2);
 
-	q40ide_atapi_output_bytes(drive, buf, wcount * 4);
+	outsw_swapw(data_addr, buf, (len + 1) / 2);
 }
 
 /* 
@@ -152,10 +144,8 @@ static int __init q40ide_init(void)
 		ide_init_port_hw(hwif, &hw);
 
 		/* Q40 has a byte-swapped IDE interface */
-		hwif->atapi_input_bytes  = q40ide_atapi_input_bytes;
-		hwif->atapi_output_bytes = q40ide_atapi_output_bytes;
-		hwif->ata_input_data	 = q40ide_ata_input_data;
-		hwif->ata_output_data	 = q40ide_ata_output_data;
+		hwif->input_data  = q40ide_input_data;
+		hwif->output_data = q40ide_output_data;
 
 		idx[i] = hwif->index;
 	}