diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index c352cf27b6e7a08f90f70ea81ebe380705a676e0..767820db7caee95690c38feea6ae5ebceece65b3 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -858,12 +858,8 @@ void ide_setup_dma(ide_hwif_t *hwif, unsigned long base)
 
 	if (!hwif->dma_command)
 		hwif->dma_command	= hwif->dma_base + 0;
-	if (!hwif->dma_vendor1)
-		hwif->dma_vendor1	= hwif->dma_base + 1;
 	if (!hwif->dma_status)
 		hwif->dma_status	= hwif->dma_base + 2;
-	if (!hwif->dma_vendor3)
-		hwif->dma_vendor3	= hwif->dma_base + 3;
 	if (!hwif->dma_prdtable)
 		hwif->dma_prdtable	= hwif->dma_base + 4;
 
diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
index ec9bd7b352fc031d1308d493e8da7ca9ad705b06..070df8ab3b218946ac69b2804bb9ebafce7a48de 100644
--- a/drivers/ide/pci/pdc202xx_new.c
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -83,8 +83,8 @@ static u8 get_indexed_reg(ide_hwif_t *hwif, u8 index)
 {
 	u8 value;
 
-	outb(index, hwif->dma_vendor1);
-	value = inb(hwif->dma_vendor3);
+	outb(index, hwif->dma_base + 1);
+	value = inb(hwif->dma_base + 3);
 
 	DBG("index[%02X] value[%02X]\n", index, value);
 	return value;
@@ -97,8 +97,8 @@ static u8 get_indexed_reg(ide_hwif_t *hwif, u8 index)
  */
 static void set_indexed_reg(ide_hwif_t *hwif, u8 index, u8 value)
 {
-	outb(index, hwif->dma_vendor1);
-	outb(value, hwif->dma_vendor3);
+	outb(index, hwif->dma_base + 1);
+	outb(value, hwif->dma_base + 3);
 	DBG("index[%02X] value[%02X]\n", index, value);
 }
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 7a5da394b98fa138a7cf3cbadba5997b1b705f2e..d1d0111e48aa1a772518458bfc7b253bff495373 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -505,9 +505,7 @@ typedef struct hwif_s {
 
 	unsigned long	dma_base;	/* base addr for dma ports */
 	unsigned long	dma_command;	/* dma command register */
-	unsigned long	dma_vendor1;	/* dma vendor 1 register */
 	unsigned long	dma_status;	/* dma status register */
-	unsigned long	dma_vendor3;	/* dma vendor 3 register */
 	unsigned long	dma_prdtable;	/* actual prd table address */
 
 	unsigned long	config_data;	/* for use by chipset-specific code */