ide: make ide_hwif_t.ide_dma_{host_off,off_quietly} void (v2)

* 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

v2:
* while at it rename atiixp_ide_dma_host_off() to atiixp_dma_host_off(),
  sgiioc4_ide_dma_{host_off,off_quietly}() to sgiioc4_dma_{host_off,off_quietly}()
  and sl82c105_ide_dma_off_quietly() to sl82c105_dma_off_quietly()
  [ Noticed by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ]

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

19 files changed, 78 insertions, 99 deletions

diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
index aeed0205ce64..de3739270bc0 100644
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -307,15 +307,13 @@ static int icside_set_speed(ide_drive_t *drive, u8 xfer_mode)
         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)
         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;
diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c
index 027341d66b28..c81b2719bca6 100644
--- 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_drive_t *drive, void *, unsigned int);
 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;
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 624d48841533..45a928c058cf 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1104,7 +1104,7 @@ static ide_startstop_t cdrom_read_intr (ide_drive_t *drive)
         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))
@@ -1700,7 +1700,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
         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);
                 }
 
@@ -1826,7 +1826,7 @@ static ide_startstop_t cdrom_write_intr(ide_drive_t *drive)
                 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);
                 }
         }
 
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 4fbcea4c1025..a15217b136f5 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -414,61 +414,57 @@ static int dma_timer_expiry (ide_drive_t *drive)
 }
 
 /**
- *      __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, unsigned long dma_base, unsigned int num_p
         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)
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 61969415c57b..57cd21c5b2c1 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -867,7 +867,7 @@ static ide_startstop_t idefloppy_pc_intr (ide_drive_t *drive)
         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_pc (ide_drive_t *drive, idefloppy_pc_t *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)
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 9f45a84588d9..c193553f6fe7 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -1351,7 +1351,7 @@ static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
          */
         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
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 09c30cbf4bd7..5ecdb11a3462 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -753,7 +753,7 @@ int ide_config_drive_speed (ide_drive_t *drive, u8 speed)
 
 #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 *drive, u8 speed)
         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 *drive)
 {
 #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
 }
 
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 72218f3e440f..8afbd6cb94be 100644
--- 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
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index be6d818d0db8..4e59239fef75 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1970,7 +1970,7 @@ static ide_startstop_t idetape_pc_intr (ide_drive_t *drive)
                 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_packet_command (ide_drive_t *drive, idetape
         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);
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 5585c01a9b7f..6e146b54257d 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -506,11 +506,11 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
         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_clear_irq         = tmp_hwif->ide_dma_clear_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;
 
@@ -1138,10 +1138,8 @@ static int set_using_dma (ide_drive_t *drive, int arg)
                 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;
diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index 8a723c81c4b8..266ef37a2807 100644
--- 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 *drive)
         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 *dev)
         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 *dev)
         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;
diff --git a/drivers/ide/pci/atiixp.c b/drivers/ide/pci/atiixp.c
index e7b4415adc83..ed32be174200 100644
--- a/drivers/ide/pci/atiixp.c
+++ b/drivers/ide/pci/atiixp.c
@@ -121,7 +121,7 @@ static int atiixp_ide_dma_host_on(ide_drive_t *drive)
         return __ide_dma_host_on(drive);
 }
 
-static int atiixp_ide_dma_host_off(ide_drive_t *drive)
+static void atiixp_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_drive_t *drive)
 
         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(ide_hwif_t *hwif)
                 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_dma_host_off;
         hwif->ide_dma_check = &atiixp_dma_check;
         if (!noautodma)
                 hwif->autodma = 1;
diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
index ff909cfb96b6..b2d7c132ef4b 100644
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -109,7 +109,7 @@ static int cs5530_config_dma (ide_drive_t *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
diff --git a/drivers/ide/pci/it821x.c b/drivers/ide/pci/it821x.c
index 35ee17df3f8d..a132767f7d90 100644
--- a/drivers/ide/pci/it821x.c
+++ b/drivers/ide/pci/it821x.c
@@ -606,7 +606,7 @@ static void __devinit it821x_fixups(ide_hwif_t *hwif)
                                 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
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index 08e317f281e7..b5ae0c50e216 100644
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -161,7 +161,7 @@ static int sc1200_config_dma2 (ide_drive_t *drive, int mode)
         /*
          * 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 *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);
                                 }
                         }
                 }
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index cb5c3211bd8e..d9aa20012fc0 100644
--- 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_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 * drive)
         return 1;
 }
 
-static int
-sgiioc4_ide_dma_host_off(ide_drive_t * drive)
+static void sgiioc4_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_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_dma_host_off;
         hwif->ide_dma_lostirq = &sgiioc4_ide_dma_lostirq;
         hwif->ide_dma_timeout = &__ide_dma_timeout;
 
diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c
index 27b21e120260..3a8a76fc78c7 100644
--- a/drivers/ide/pci/sl82c105.c
+++ b/drivers/ide/pci/sl82c105.c
@@ -265,19 +265,16 @@ static int sl82c105_ide_dma_on (ide_drive_t *drive)
         return __ide_dma_on(drive);
 }
 
-static int sl82c105_ide_dma_off_quietly (ide_drive_t *drive)
+static void sl82c105_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);
+        DBG(("sl82c105_dma_off_quietly(drive:%s)\n", drive->name));
+
+        ide_dma_off_quietly(drive);
         if (drive->pio_speed)
                 speed = drive->pio_speed - XFER_PIO_0;
         config_for_pio(drive, speed, 0, 1);
-
-        return rc;
 }
 
 /*
@@ -440,7 +437,7 @@ static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif)
 
                 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_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;
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index c547c76533d5..d3bb247e9574 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1979,10 +1979,8 @@ pmac_ide_dma_test_irq (ide_drive_t *drive)
         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
@@ -2034,7 +2032,7 @@ pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
                 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;
@@ -2042,7 +2040,7 @@ pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
         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;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 08f96e8a1902..00cbe531e1e8 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -735,11 +735,11 @@ 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 *drive);
         int (*ide_dma_test_irq)(ide_drive_t *drive);
         void (*ide_dma_clear_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 *drive);
         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 *, const struct drive_list_entry *);
 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_drive_t *);
 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 */