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 8d668a80adb3..51c86bc241ac 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;