From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Sat, 26 Jan 2008 19:13:02 +0000 (+0100)
Subject: ide: move drive->using_dma check to callers of ->dma_host_on method
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f37aaf9edeba3f4ae10d22aefc09c06af9ea39b6;p=linux-beck.git

ide: move drive->using_dma check to callers of ->dma_host_on method

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---

diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index edd0018c4988..780911e0537e 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -471,7 +471,7 @@ EXPORT_SYMBOL(ide_dma_off);
 
 void ide_dma_host_on(ide_drive_t *drive)
 {
-	if (drive->using_dma) {
+	if (1) {
 		ide_hwif_t *hwif	= HWIF(drive);
 		u8 unit			= (drive->select.b.unit & 0x01);
 		u8 dma_stat		= hwif->INB(hwif->dma_status);
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 76cb5f2bd4e6..e30f67e09b9c 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -799,7 +799,8 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
 
  skip:
 #ifdef CONFIG_BLK_DEV_IDEDMA
-	if (speed >= XFER_SW_DMA_0 || (hwif->host_flags & IDE_HFLAG_VDMA))
+	if ((speed >= XFER_SW_DMA_0 || (hwif->host_flags & IDE_HFLAG_VDMA)) &&
+	    drive->using_dma)
 		hwif->dma_host_on(drive);
 	else if (hwif->dma_host_on)	/* check if host supports DMA */
 		ide_dma_off_quietly(drive);
diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c
index 78058ca2ce76..2bd52af83d37 100644
--- a/drivers/ide/pci/cs5520.c
+++ b/drivers/ide/pci/cs5520.c
@@ -109,8 +109,7 @@ static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed)
 
 static void cs5520_dma_host_on(ide_drive_t *drive)
 {
-	if (drive->using_dma)
-		drive->vdma = 1;
+	drive->vdma = 1;
 
 	ide_dma_host_on(drive);
 }
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index 8a94c3e8f7c4..9303dfee7780 100644
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -221,7 +221,7 @@ static void sc1200_set_pio_mode(ide_drive_t *drive, const u8 pio)
 	if (mode != -1) {
 		printk("SC1200: %s: changing (U)DMA mode\n", drive->name);
 		ide_dma_off_quietly(drive);
-		if (ide_set_dma_mode(drive, mode) == 0)
+		if (ide_set_dma_mode(drive, mode) == 0 && drive->using_dma)
 			hwif->dma_host_on(drive);
 		return;
 	}