[PATCH] ide: make ide_hwif_t.ide_dma_{host_off,off_quietly} void

* since ide_hwif_t.ide_dma_{host_off,off_quietly} always return '0'
  make these functions void and while at it drop "ide_" prefix
* fix comment for __ide_dma_off_quietly()
* make __ide_dma_{host_off,off_quietly,off}() void and drop "__" prefix

Signed-off-by: Bartlomiej Zolnierkiewicz <[EMAIL PROTECTED]>

---
 drivers/ide/arm/icside.c      |   10 ++++------
 drivers/ide/cris/ide-cris.c   |   14 ++++++--------
 drivers/ide/ide-cd.c          |    6 +++---
 drivers/ide/ide-dma.c         |   39 ++++++++++++++++++---------------------
 drivers/ide/ide-floppy.c      |    8 ++++----
 drivers/ide/ide-io.c          |    2 +-
 drivers/ide/ide-iops.c        |    8 ++++----
 drivers/ide/ide-probe.c       |    2 +-
 drivers/ide/ide-tape.c        |    4 ++--
 drivers/ide/ide.c             |   10 ++++------
 drivers/ide/mips/au1xxx-ide.c |   11 ++++-------
 drivers/ide/pci/atiixp.c      |    6 +++---
 drivers/ide/pci/cs5530.c      |    2 +-
 drivers/ide/pci/it821x.c      |    2 +-
 drivers/ide/pci/sc1200.c      |    6 +++---
 drivers/ide/pci/sgiioc4.c     |   14 +++++---------
 drivers/ide/pci/sl82c105.c    |   14 ++++++--------
 drivers/ide/ppc/pmac.c        |    8 +++-----
 include/linux/ide.h           |   12 ++++++------
 19 files changed, 79 insertions(+), 99 deletions(-)

Index: b/drivers/ide/arm/icside.c
===================================================================
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -307,15 +307,13 @@ static int icside_set_speed(ide_drive_t 
        return on;
 }
 
-static int icside_dma_host_off(ide_drive_t *drive)
+static void icside_dma_host_off(ide_drive_t *drive)
 {
-       return 0;
 }
 
-static int icside_dma_off_quietly(ide_drive_t *drive)
+static void icside_dma_off_quietly(ide_drive_t *drive)
 {
        drive->using_dma = 0;
-       return icside_dma_host_off(drive);
 }
 
 static int icside_dma_host_on(ide_drive_t *drive)
@@ -494,8 +492,8 @@ static void icside_dma_init(ide_hwif_t *
        hwif->autodma           = autodma;
 
        hwif->ide_dma_check     = icside_dma_check;
-       hwif->ide_dma_host_off  = icside_dma_host_off;
-       hwif->ide_dma_off_quietly = icside_dma_off_quietly;
+       hwif->dma_host_off      = icside_dma_host_off;
+       hwif->dma_off_quietly   = icside_dma_off_quietly;
        hwif->ide_dma_host_on   = icside_dma_host_on;
        hwif->ide_dma_on        = icside_dma_on;
        hwif->dma_setup         = icside_dma_setup;
Index: b/drivers/ide/cris/ide-cris.c
===================================================================
--- a/drivers/ide/cris/ide-cris.c
+++ b/drivers/ide/cris/ide-cris.c
@@ -682,9 +682,12 @@ static void cris_ide_input_data (ide_dri
 static void cris_ide_output_data (ide_drive_t *drive, void *, unsigned int);
 static void cris_atapi_input_bytes(ide_drive_t *drive, void *, unsigned int);
 static void cris_atapi_output_bytes(ide_drive_t *drive, void *, unsigned int);
-static int cris_dma_off (ide_drive_t *drive);
 static int cris_dma_on (ide_drive_t *drive);
 
+static void cris_dma_off(ide_drive_t *drive)
+{
+}
+
 static void tune_cris_ide(ide_drive_t *drive, u8 pio)
 {
        int setup, strobe, hold;
@@ -814,9 +817,9 @@ init_e100_ide (void)
                hwif->OUTBSYNC = &cris_ide_outbsync;
                hwif->INB = &cris_ide_inb;
                hwif->INW = &cris_ide_inw;
-               hwif->ide_dma_host_off = &cris_dma_off;
+               hwif->dma_host_off = &cris_dma_off;
                hwif->ide_dma_host_on = &cris_dma_on;
-               hwif->ide_dma_off_quietly = &cris_dma_off;
+               hwif->dma_off_quietly = &cris_dma_off;
                hwif->udma_four = 0;
                hwif->ultra_mask = cris_ultra_mask;
                hwif->mwdma_mask = 0x07; /* Multiword DMA 0-2 */
@@ -838,11 +841,6 @@ init_e100_ide (void)
        cris_ide_set_speed(TYPE_UDMA, ATA_UDMA2_CYC, ATA_UDMA2_DVS, 0);
 }
 
-static int cris_dma_off (ide_drive_t *drive)
-{
-       return 0;
-}
-
 static int cris_dma_on (ide_drive_t *drive)
 {
        return 0;
Index: b/drivers/ide/ide-cd.c
===================================================================
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1103,7 +1103,7 @@ static ide_startstop_t cdrom_read_intr (
        if (dma) {
                info->dma = 0;
                if ((dma_error = HWIF(drive)->ide_dma_end(drive)))
-                       __ide_dma_off(drive);
+                       ide_dma_off(drive);
        }
 
        if (cdrom_decode_status(drive, 0, &stat))
@@ -1699,7 +1699,7 @@ static ide_startstop_t cdrom_newpc_intr(
        if (dma) {
                if (dma_error) {
                        printk(KERN_ERR "ide-cd: dma error\n");
-                       __ide_dma_off(drive);
+                       ide_dma_off(drive);
                        return ide_error(drive, "dma error", stat);
                }
 
@@ -1825,7 +1825,7 @@ static ide_startstop_t cdrom_write_intr(
                info->dma = 0;
                if ((dma_error = HWIF(drive)->ide_dma_end(drive))) {
                        printk(KERN_ERR "ide-cd: write dma error\n");
-                       __ide_dma_off(drive);
+                       ide_dma_off(drive);
                }
        }
 
Index: b/drivers/ide/ide-dma.c
===================================================================
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -414,61 +414,57 @@ static int dma_timer_expiry (ide_drive_t
 }
 
 /**
- *     __ide_dma_host_off      -       Generic DMA kill
+ *     ide_dma_host_off        -       Generic DMA kill
  *     @drive: drive to control
  *
  *     Perform the generic IDE controller DMA off operation. This
  *     works for most IDE bus mastering controllers
  */
 
-int __ide_dma_host_off (ide_drive_t *drive)
+void ide_dma_host_off(ide_drive_t *drive)
 {
        ide_hwif_t *hwif        = HWIF(drive);
        u8 unit                 = (drive->select.b.unit & 0x01);
        u8 dma_stat             = hwif->INB(hwif->dma_status);
 
        hwif->OUTB((dma_stat & ~(1<<(5+unit))), hwif->dma_status);
-       return 0;
 }
 
-EXPORT_SYMBOL(__ide_dma_host_off);
+EXPORT_SYMBOL(ide_dma_host_off);
 
 /**
- *     __ide_dma_host_off_quietly      -       Generic DMA kill
+ *     ide_dma_off_quietly     -       Generic DMA kill
  *     @drive: drive to control
  *
  *     Turn off the current DMA on this IDE controller. 
  */
 
-int __ide_dma_off_quietly (ide_drive_t *drive)
+void ide_dma_off_quietly(ide_drive_t *drive)
 {
        drive->using_dma = 0;
        ide_toggle_bounce(drive, 0);
 
-       if (HWIF(drive)->ide_dma_host_off(drive))
-               return 1;
-
-       return 0;
+       drive->hwif->dma_host_off(drive);
 }
 
-EXPORT_SYMBOL(__ide_dma_off_quietly);
+EXPORT_SYMBOL(ide_dma_off_quietly);
 #endif /* CONFIG_BLK_DEV_IDEDMA_PCI */
 
 /**
- *     __ide_dma_off   -       disable DMA on a device
+ *     ide_dma_off     -       disable DMA on a device
  *     @drive: drive to disable DMA on
  *
  *     Disable IDE DMA for a device on this IDE controller.
  *     Inform the user that DMA has been disabled.
  */
 
-int __ide_dma_off (ide_drive_t *drive)
+void ide_dma_off(ide_drive_t *drive)
 {
        printk(KERN_INFO "%s: DMA disabled\n", drive->name);
-       return HWIF(drive)->ide_dma_off_quietly(drive);
+       drive->hwif->dma_off_quietly(drive);
 }
 
-EXPORT_SYMBOL(__ide_dma_off);
+EXPORT_SYMBOL(ide_dma_off);
 
 #ifdef CONFIG_BLK_DEV_IDEDMA_PCI
 /**
@@ -758,7 +754,7 @@ void ide_dma_verbose(ide_drive_t *drive)
        return;
 bug_dma_off:
        printk(", BUG DMA OFF");
-       hwif->ide_dma_off_quietly(drive);
+       hwif->dma_off_quietly(drive);
        return;
 }
 
@@ -773,7 +769,8 @@ int ide_set_dma(ide_drive_t *drive)
 
        switch(rc) {
        case -1: /* DMA needs to be disabled */
-               return hwif->ide_dma_off_quietly(drive);
+               hwif->dma_off_quietly(drive);
+               return 0;
        case  0: /* DMA needs to be enabled */
                return hwif->ide_dma_on(drive);
        case  1: /* DMA setting cannot be changed */
@@ -937,10 +934,10 @@ void ide_setup_dma (ide_hwif_t *hwif, un
        if (!(hwif->dma_prdtable))
                hwif->dma_prdtable      = (hwif->dma_base + 4);
 
-       if (!hwif->ide_dma_off_quietly)
-               hwif->ide_dma_off_quietly = &__ide_dma_off_quietly;
-       if (!hwif->ide_dma_host_off)
-               hwif->ide_dma_host_off = &__ide_dma_host_off;
+       if (!hwif->dma_off_quietly)
+               hwif->dma_off_quietly = &ide_dma_off_quietly;
+       if (!hwif->dma_host_off)
+               hwif->dma_host_off = &ide_dma_host_off;
        if (!hwif->ide_dma_on)
                hwif->ide_dma_on = &__ide_dma_on;
        if (!hwif->ide_dma_host_on)
Index: b/drivers/ide/ide-floppy.c
===================================================================
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -867,7 +867,7 @@ static ide_startstop_t idefloppy_pc_intr
        if (test_and_clear_bit(PC_DMA_IN_PROGRESS, &pc->flags)) {
                printk(KERN_ERR "ide-floppy: The floppy wants to issue "
                        "more interrupts in DMA mode\n");
-               (void)__ide_dma_off(drive);
+               ide_dma_off(drive);
                return ide_do_reset(drive);
        }
 
@@ -1097,9 +1097,9 @@ static ide_startstop_t idefloppy_issue_p
        pc->current_position = pc->buffer;
        bcount.all = min(pc->request_transfer, 63 * 1024);
 
-       if (test_and_clear_bit(PC_DMA_ERROR, &pc->flags)) {
-               (void)__ide_dma_off(drive);
-       }
+       if (test_and_clear_bit(PC_DMA_ERROR, &pc->flags))
+               ide_dma_off(drive);
+
        feature.all = 0;
 
        if (test_bit(PC_DMA_RECOMMENDED, &pc->flags) && drive->using_dma)
Index: b/drivers/ide/ide-io.c
===================================================================
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -1351,7 +1351,7 @@ static ide_startstop_t ide_dma_timeout_r
         */
        drive->retry_pio++;
        drive->state = DMA_PIO_RETRY;
-       (void) hwif->ide_dma_off_quietly(drive);
+       hwif->dma_off_quietly(drive);
 
        /*
         * un-busy drive etc (hwgroup->busy is cleared on return) and
Index: b/drivers/ide/ide-iops.c
===================================================================
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -753,7 +753,7 @@ int ide_config_drive_speed (ide_drive_t 
 
 #ifdef CONFIG_BLK_DEV_IDEDMA
        if (hwif->ide_dma_check)         /* check if host supports DMA */
-               hwif->ide_dma_host_off(drive);
+               hwif->dma_host_off(drive);
 #endif
 
        /*
@@ -832,7 +832,7 @@ int ide_config_drive_speed (ide_drive_t 
        if (speed >= XFER_SW_DMA_0)
                hwif->ide_dma_host_on(drive);
        else if (hwif->ide_dma_check)   /* check if host supports DMA */
-               hwif->ide_dma_off_quietly(drive);
+               hwif->dma_off_quietly(drive);
 #endif
 
        switch(speed) {
@@ -1042,12 +1042,12 @@ static void check_dma_crc(ide_drive_t *d
 {
 #ifdef CONFIG_BLK_DEV_IDEDMA
        if (drive->crc_count) {
-               (void) HWIF(drive)->ide_dma_off_quietly(drive);
+               drive->hwif->dma_off_quietly(drive);
                ide_set_xfer_rate(drive, ide_auto_reduce_xfer(drive));
                if (drive->current_speed >= XFER_SW_DMA_0)
                        (void) HWIF(drive)->ide_dma_on(drive);
        } else
-               (void)__ide_dma_off(drive);
+               ide_dma_off(drive);
 #endif
 }
 
Index: b/drivers/ide/ide-probe.c
===================================================================
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -853,7 +853,7 @@ static void probe_hwif(ide_hwif_t *hwif)
                                 * things, if not checked and cleared.
                                 *   PARANOIA!!!
                                 */
-                               hwif->ide_dma_off_quietly(drive);
+                               hwif->dma_off_quietly(drive);
 #ifdef CONFIG_IDEDMA_ONLYDISK
                                if (drive->media == ide_disk)
 #endif
Index: b/drivers/ide/ide-tape.c
===================================================================
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1970,7 +1970,7 @@ static ide_startstop_t idetape_pc_intr (
                printk(KERN_ERR "ide-tape: The tape wants to issue more "
                                "interrupts in DMA mode\n");
                printk(KERN_ERR "ide-tape: DMA disabled, reverting to PIO\n");
-               (void)__ide_dma_off(drive);
+               ide_dma_off(drive);
                return ide_do_reset(drive);
        }
        /* Get the number of bytes to transfer on this interrupt. */
@@ -2176,7 +2176,7 @@ static ide_startstop_t idetape_issue_pac
        if (test_and_clear_bit(PC_DMA_ERROR, &pc->flags)) {
                printk(KERN_WARNING "ide-tape: DMA disabled, "
                                "reverting to PIO\n");
-               (void)__ide_dma_off(drive);
+               ide_dma_off(drive);
        }
        if (test_bit(PC_DMA_RECOMMENDED, &pc->flags) && drive->using_dma)
                dma_ok = !hwif->dma_setup(drive);
Index: b/drivers/ide/ide.c
===================================================================
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -506,10 +506,10 @@ static void ide_hwif_restore(ide_hwif_t 
        hwif->ide_dma_end               = tmp_hwif->ide_dma_end;
        hwif->ide_dma_check             = tmp_hwif->ide_dma_check;
        hwif->ide_dma_on                = tmp_hwif->ide_dma_on;
-       hwif->ide_dma_off_quietly       = tmp_hwif->ide_dma_off_quietly;
+       hwif->dma_off_quietly           = tmp_hwif->dma_off_quietly;
        hwif->ide_dma_test_irq          = tmp_hwif->ide_dma_test_irq;
        hwif->ide_dma_host_on           = tmp_hwif->ide_dma_host_on;
-       hwif->ide_dma_host_off          = tmp_hwif->ide_dma_host_off;
+       hwif->dma_host_off              = tmp_hwif->dma_host_off;
        hwif->ide_dma_lostirq           = tmp_hwif->ide_dma_lostirq;
        hwif->ide_dma_timeout           = tmp_hwif->ide_dma_timeout;
 
@@ -1137,10 +1137,8 @@ static int set_using_dma (ide_drive_t *d
                if (ide_set_dma(drive))
                        return -EIO;
                if (HWIF(drive)->ide_dma_on(drive)) return -EIO;
-       } else {
-               if (__ide_dma_off(drive))
-                       return -EIO;
-       }
+       } else
+               ide_dma_off(drive);
        return 0;
 #else
        return -EPERM;
Index: b/drivers/ide/mips/au1xxx-ide.c
===================================================================
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -449,16 +449,13 @@ static int auide_dma_on(ide_drive_t *dri
        return auide_dma_host_on(drive);
 }
 
-
-static int auide_dma_host_off(ide_drive_t *drive)
+static void auide_dma_host_off(ide_drive_t *drive)
 {
-       return 0;
 }
 
-static int auide_dma_off_quietly(ide_drive_t *drive)
+static void auide_dma_off_quietly(ide_drive_t *drive)
 {
        drive->using_dma = 0;
-       return auide_dma_host_off(drive);
 }
 
 static int auide_dma_lostirq(ide_drive_t *drive)
@@ -724,7 +721,7 @@ static int au_ide_probe(struct device *d
        hwif->speedproc                 = &auide_tune_chipset;
 
 #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-       hwif->ide_dma_off_quietly       = &auide_dma_off_quietly;
+       hwif->dma_off_quietly           = &auide_dma_off_quietly;
        hwif->ide_dma_timeout           = &auide_dma_timeout;
 
        hwif->ide_dma_check             = &auide_dma_check;
@@ -733,7 +730,7 @@ static int au_ide_probe(struct device *d
        hwif->ide_dma_end               = &auide_dma_end;
        hwif->dma_setup                 = &auide_dma_setup;
        hwif->ide_dma_test_irq          = &auide_dma_test_irq;
-       hwif->ide_dma_host_off          = &auide_dma_host_off;
+       hwif->dma_host_off              = &auide_dma_host_off;
        hwif->ide_dma_host_on           = &auide_dma_host_on;
        hwif->ide_dma_lostirq           = &auide_dma_lostirq;
        hwif->ide_dma_on                = &auide_dma_on;
Index: b/drivers/ide/pci/atiixp.c
===================================================================
--- a/drivers/ide/pci/atiixp.c
+++ b/drivers/ide/pci/atiixp.c
@@ -121,7 +121,7 @@ static int atiixp_ide_dma_host_on(ide_dr
        return __ide_dma_host_on(drive);
 }
 
-static int atiixp_ide_dma_host_off(ide_drive_t *drive)
+static void atiixp_ide_dma_host_off(ide_drive_t *drive)
 {
        struct pci_dev *dev = drive->hwif->pci_dev;
        unsigned long flags;
@@ -135,7 +135,7 @@ static int atiixp_ide_dma_host_off(ide_d
 
        spin_unlock_irqrestore(&atiixp_lock, flags);
 
-       return __ide_dma_host_off(drive);
+       ide_dma_host_off(drive);
 }
 
 /**
@@ -306,7 +306,7 @@ static void __devinit init_hwif_atiixp(i
                hwif->udma_four = 0;
 
        hwif->ide_dma_host_on = &atiixp_ide_dma_host_on;
-       hwif->ide_dma_host_off = &atiixp_ide_dma_host_off;
+       hwif->dma_host_off = &atiixp_ide_dma_host_off;
        hwif->ide_dma_check = &atiixp_dma_check;
        if (!noautodma)
                hwif->autodma = 1;
Index: b/drivers/ide/pci/cs5530.c
===================================================================
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -109,7 +109,7 @@ static int cs5530_config_dma (ide_drive_
        /*
         * Default to DMA-off in case we run into trouble here.
         */
-       hwif->ide_dma_off_quietly(drive);
+       hwif->dma_off_quietly(drive);
 
        /*
         * The CS5530 specifies that two drives sharing a cable cannot
Index: b/drivers/ide/pci/it821x.c
===================================================================
--- a/drivers/ide/pci/it821x.c
+++ b/drivers/ide/pci/it821x.c
@@ -606,7 +606,7 @@ static void __devinit it821x_fixups(ide_
                                printk(".\n");
                        /* Now the core code will have wrongly decided no DMA
                           so we need to fix this */
-                       hwif->ide_dma_off_quietly(drive);
+                       hwif->dma_off_quietly(drive);
 #ifdef CONFIG_IDEDMA_ONLYDISK
                        if (drive->media == ide_disk)
 #endif
Index: b/drivers/ide/pci/sc1200.c
===================================================================
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -161,7 +161,7 @@ static int sc1200_config_dma2 (ide_drive
        /*
         * Default to DMA-off in case we run into trouble here.
         */
-       hwif->ide_dma_off_quietly(drive);                       /* turn off DMA 
while we fiddle */
+       hwif->dma_off_quietly(drive);   /* turn off DMA while we fiddle */
        outb(inb(hwif->dma_base+2)&~(unit?0x40:0x20), hwif->dma_base+2); /* 
clear DMA_capable bit */
 
        /*
@@ -439,10 +439,10 @@ static int sc1200_resume (struct pci_dev
                        ide_drive_t *drive = &(hwif->drives[d]);
                        if (drive->present && !__ide_dma_bad_drive(drive)) {
                                int was_using_dma = drive->using_dma;
-                               hwif->ide_dma_off_quietly(drive);
+                               hwif->dma_off_quietly(drive);
                                sc1200_config_dma(drive);
                                if (!was_using_dma && drive->using_dma) {
-                                       hwif->ide_dma_off_quietly(drive);
+                                       hwif->dma_off_quietly(drive);
                                }
                        }
                }
Index: b/drivers/ide/pci/sgiioc4.c
===================================================================
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -282,12 +282,11 @@ sgiioc4_ide_dma_on(ide_drive_t * drive)
        return HWIF(drive)->ide_dma_host_on(drive);
 }
 
-static int
-sgiioc4_ide_dma_off_quietly(ide_drive_t * drive)
+static void sgiioc4_ide_dma_off_quietly(ide_drive_t *drive)
 {
        drive->using_dma = 0;
 
-       return HWIF(drive)->ide_dma_host_off(drive);
+       drive->hwif->dma_host_off(drive);
 }
 
 static int sgiioc4_ide_dma_check(ide_drive_t *drive)
@@ -317,12 +316,9 @@ sgiioc4_ide_dma_host_on(ide_drive_t * dr
        return 1;
 }
 
-static int
-sgiioc4_ide_dma_host_off(ide_drive_t * drive)
+static void sgiioc4_ide_dma_host_off(ide_drive_t * drive)
 {
        sgiioc4_clearirq(drive);
-
-       return 0;
 }
 
 static int
@@ -612,10 +608,10 @@ ide_init_sgiioc4(ide_hwif_t * hwif)
        hwif->ide_dma_end = &sgiioc4_ide_dma_end;
        hwif->ide_dma_check = &sgiioc4_ide_dma_check;
        hwif->ide_dma_on = &sgiioc4_ide_dma_on;
-       hwif->ide_dma_off_quietly = &sgiioc4_ide_dma_off_quietly;
+       hwif->dma_off_quietly = &sgiioc4_ide_dma_off_quietly;
        hwif->ide_dma_test_irq = &sgiioc4_ide_dma_test_irq;
        hwif->ide_dma_host_on = &sgiioc4_ide_dma_host_on;
-       hwif->ide_dma_host_off = &sgiioc4_ide_dma_host_off;
+       hwif->dma_host_off = &sgiioc4_ide_dma_host_off;
        hwif->ide_dma_lostirq = &sgiioc4_ide_dma_lostirq;
        hwif->ide_dma_timeout = &__ide_dma_timeout;
 
Index: b/drivers/ide/pci/sl82c105.c
===================================================================
--- a/drivers/ide/pci/sl82c105.c
+++ b/drivers/ide/pci/sl82c105.c
@@ -261,26 +261,24 @@ static int sl82c105_ide_dma_on (ide_driv
 
        if (config_for_dma(drive)) {
                config_for_pio(drive, 4, 0, 0);
-               return HWIF(drive)->ide_dma_off_quietly(drive);
+               drive->hwif->dma_off_quietly(drive);
+               return 0;
        }
        printk(KERN_INFO "%s: DMA enabled\n", drive->name);
        return __ide_dma_on(drive);
 }
 
-static int sl82c105_ide_dma_off_quietly (ide_drive_t *drive)
+static void sl82c105_ide_dma_off_quietly(ide_drive_t *drive)
 {
        u8 speed = XFER_PIO_0;
-       int rc;
-       
+
        DBG(("sl82c105_ide_dma_off_quietly(drive:%s)\n", drive->name));
 
-       rc = __ide_dma_off_quietly(drive);
+       ide_dma_off_quietly(drive);
        if (drive->pio_speed)
                speed = drive->pio_speed - XFER_PIO_0;
        config_for_pio(drive, speed, 0, 1);
        drive->current_speed = drive->pio_speed;
-
-       return rc;
 }
 
 /*
@@ -449,7 +447,7 @@ static void __devinit init_hwif_sl82c105
 
                hwif->ide_dma_check = &sl82c105_check_drive;
                hwif->ide_dma_on = &sl82c105_ide_dma_on;
-               hwif->ide_dma_off_quietly = &sl82c105_ide_dma_off_quietly;
+               hwif->dma_off_quietly = &sl82c105_ide_dma_off_quietly;
                hwif->ide_dma_lostirq = &sl82c105_ide_dma_lost_irq;
                hwif->dma_start = &sl82c105_ide_dma_start;
                hwif->ide_dma_timeout = &sl82c105_ide_dma_timeout;
Index: b/drivers/ide/ppc/pmac.c
===================================================================
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1980,10 +1980,8 @@ pmac_ide_dma_test_irq (ide_drive_t *driv
        return 1;
 }
 
-static int
-pmac_ide_dma_host_off (ide_drive_t *drive)
+static void pmac_ide_dma_host_off(ide_drive_t *drive)
 {
-       return 0;
 }
 
 static int
@@ -2035,7 +2033,7 @@ pmac_ide_setup_dma(pmac_ide_hwif_t *pmif
                return;
        }
 
-       hwif->ide_dma_off_quietly = &__ide_dma_off_quietly;
+       hwif->dma_off_quietly = &ide_dma_off_quietly;
        hwif->ide_dma_on = &__ide_dma_on;
        hwif->ide_dma_check = &pmac_ide_dma_check;
        hwif->dma_setup = &pmac_ide_dma_setup;
@@ -2043,7 +2041,7 @@ pmac_ide_setup_dma(pmac_ide_hwif_t *pmif
        hwif->dma_start = &pmac_ide_dma_start;
        hwif->ide_dma_end = &pmac_ide_dma_end;
        hwif->ide_dma_test_irq = &pmac_ide_dma_test_irq;
-       hwif->ide_dma_host_off = &pmac_ide_dma_host_off;
+       hwif->dma_host_off = &pmac_ide_dma_host_off;
        hwif->ide_dma_host_on = &pmac_ide_dma_host_on;
        hwif->ide_dma_timeout = &__ide_dma_timeout;
        hwif->ide_dma_lostirq = &pmac_ide_dma_lostirq;
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -735,10 +735,10 @@ typedef struct hwif_s {
        int (*ide_dma_end)(ide_drive_t *drive);
        int (*ide_dma_check)(ide_drive_t *drive);
        int (*ide_dma_on)(ide_drive_t *drive);
-       int (*ide_dma_off_quietly)(ide_drive_t *drive);
+       void (*dma_off_quietly)(ide_drive_t *);
        int (*ide_dma_test_irq)(ide_drive_t *drive);
        int (*ide_dma_host_on)(ide_drive_t *drive);
-       int (*ide_dma_host_off)(ide_drive_t *drive);
+       void (*dma_host_off)(ide_drive_t *);
        int (*ide_dma_lostirq)(ide_drive_t *drive);
        int (*ide_dma_timeout)(ide_drive_t *drive);
 
@@ -1276,7 +1276,7 @@ int ide_in_drive_list(struct hd_driveid 
 int __ide_dma_bad_drive(ide_drive_t *);
 int __ide_dma_good_drive(ide_drive_t *);
 int ide_use_dma(ide_drive_t *);
-int __ide_dma_off(ide_drive_t *);
+void ide_dma_off(ide_drive_t *);
 void ide_dma_verbose(ide_drive_t *);
 int ide_set_dma(ide_drive_t *);
 ide_startstop_t ide_dma_intr(ide_drive_t *);
@@ -1288,8 +1288,8 @@ extern void ide_destroy_dmatable(ide_dri
 extern int ide_release_dma(ide_hwif_t *);
 extern void ide_setup_dma(ide_hwif_t *, unsigned long, unsigned int);
 
-extern int __ide_dma_host_off(ide_drive_t *);
-extern int __ide_dma_off_quietly(ide_drive_t *);
+void ide_dma_host_off(ide_drive_t *);
+void ide_dma_off_quietly(ide_drive_t *);
 extern int __ide_dma_host_on(ide_drive_t *);
 extern int __ide_dma_on(ide_drive_t *);
 extern int __ide_dma_check(ide_drive_t *);
@@ -1302,7 +1302,7 @@ extern int __ide_dma_timeout(ide_drive_t
 
 #else
 static inline int ide_use_dma(ide_drive_t *drive) { return 0; }
-static inline int __ide_dma_off(ide_drive_t *drive) { return 0; }
+static inline void ide_dma_off(ide_drive_t *drive) { ; }
 static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
 static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
 #endif /* CONFIG_BLK_DEV_IDEDMA */
-
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