ide: ide_setup_dma() assumes 8 ports

According to http://marc.info/?l=linux-ide&m=114346138611631, the drivers must
always register 8 DMA ports with ide_setup_dma(), so its last argument is not
needed. While at it, kill some useless parens in that function...

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

1 files changed, 20 insertions, 20 deletions

diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 8d668a80adb..51c86bc241a 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -889,19 +889,19 @@ static int ide_allocate_dma_engine(ide_hwif_t *hwif)
 	return 1;
 }
 
-static int ide_mapped_mmio_dma(ide_hwif_t *hwif, unsigned long base, unsigned int ports)
+static int ide_mapped_mmio_dma(ide_hwif_t *hwif, unsigned long base)
 {
 	printk(KERN_INFO "    %s: MMIO-DMA ", hwif->name);
 
 	return 0;
 }
 
-static int ide_iomio_dma(ide_hwif_t *hwif, unsigned long base, unsigned int ports)
+static int ide_iomio_dma(ide_hwif_t *hwif, unsigned long base)
 {
 	printk(KERN_INFO "    %s: BM-DMA at 0x%04lx-0x%04lx",
-	       hwif->name, base, base + ports - 1);
+	       hwif->name, base, base + 7);
 
-	if (!request_region(base, ports, hwif->name)) {
+	if (!request_region(base, 8, hwif->name)) {
 		printk(" -- Error, ports in use.\n");
 		return 1;
 	}
@@ -913,7 +913,7 @@ static int ide_iomio_dma(ide_hwif_t *hwif, unsigned long base, unsigned int port
 			if (!request_region(hwif->extra_base,
 					    hwif->cds->extra, hwif->cds->name)) {
 				printk(" -- Error, extra ports in use.\n");
-				release_region(base, ports);
+				release_region(base, 8);
 				return 1;
 			}
 			hwif->extra_ports = hwif->cds->extra;
@@ -923,19 +923,19 @@ static int ide_iomio_dma(ide_hwif_t *hwif, unsigned long base, unsigned int port
 	return 0;
 }
 
-static int ide_dma_iobase(ide_hwif_t *hwif, unsigned long base, unsigned int ports)
+static int ide_dma_iobase(ide_hwif_t *hwif, unsigned long base)
 {
 	if (hwif->mmio)
-		return ide_mapped_mmio_dma(hwif, base,ports);
+		return ide_mapped_mmio_dma(hwif, base);
 
-	return ide_iomio_dma(hwif, base, ports);
+	return ide_iomio_dma(hwif, base);
 }
 
-void ide_setup_dma(ide_hwif_t *hwif, unsigned long base, unsigned num_ports)
+void ide_setup_dma(ide_hwif_t *hwif, unsigned long base)
 {
 	u8 dma_stat;
 
-	if (ide_dma_iobase(hwif, base, num_ports))
+	if (ide_dma_iobase(hwif, base))
 		return;
 
 	if (ide_allocate_dma_engine(hwif)) {
@@ -945,16 +945,16 @@ void ide_setup_dma(ide_hwif_t *hwif, unsigned long base, unsigned num_ports)
 
 	hwif->dma_base = base;
 
-	if (!(hwif->dma_command))
-		hwif->dma_command	= hwif->dma_base;
-	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);
+	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;
 
 	if (!hwif->dma_host_set)
 		hwif->dma_host_set = &ide_dma_host_set;