[PATCH] ide: remove dma_base2 field from ide_hwif_t

Remove dma_base2 field from ide_hwif_t as it's used only in 2 drivers and
without great need.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: John Keller <jpk@sgi.com>
Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 9 insertions, 11 deletions

diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index d8a0d87df734..f3fe287fbd89 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -220,7 +220,7 @@ sgiioc4_ide_dma_end(ide_drive_t * drive)
         ide_hwif_t *hwif = HWIF(drive);
         u64 dma_base = hwif->dma_base;
         int dma_stat = 0;
-        unsigned long *ending_dma = (unsigned long *) hwif->dma_base2;
+        unsigned long *ending_dma = ide_get_hwifdata(hwif);
 
         hwif->OUTL(IOC4_S_DMA_STOP, dma_base + IOC4_DMA_CTRL * 4);
 
@@ -369,6 +369,7 @@ ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
 {
         void __iomem *virt_dma_base;
         int num_ports = sizeof (ioc4_dma_regs_t);
+        void *pad;
 
         printk(KERN_INFO "%s: BM-DMA at 0x%04lx-0x%04lx\n", hwif->name,
                dma_base, dma_base + num_ports - 1);
@@ -400,17 +401,14 @@ ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
 
         hwif->sg_max_nents = IOC4_PRD_ENTRIES;
 
-        hwif->dma_base2 = (unsigned long)
-                pci_alloc_consistent(hwif->pci_dev,
-                                     IOC4_IDE_CACHELINE_SIZE,
-                                     (dma_addr_t *) &(hwif->dma_status));
+        pad = pci_alloc_consistent(hwif->pci_dev, IOC4_IDE_CACHELINE_SIZE,
+                                   (dma_addr_t *) &(hwif->dma_status));
 
-        if (!hwif->dma_base2)
-                goto dma_base2alloc_failure;
-
-        return;
+        if (pad) {
+                ide_set_hwifdata(hwif, pad);
+                return;
+        }
 
-dma_base2alloc_failure:
         pci_free_consistent(hwif->pci_dev,
                             IOC4_PRD_ENTRIES * IOC4_PRD_BYTES,
                             hwif->dmatable_cpu, hwif->dmatable_dma);
@@ -476,7 +474,7 @@ sgiioc4_configure_for_dma(int dma_direction, ide_drive_t * drive)
         hwif->OUTL(dma_addr, dma_base + IOC4_DMA_PTR_L * 4);
 
         /* Address of the Ending DMA */
-        memset((unsigned int *) hwif->dma_base2, 0, IOC4_IDE_CACHELINE_SIZE);
+        memset(ide_get_hwifdata(hwif), 0, IOC4_IDE_CACHELINE_SIZE);
         ending_dma_addr = cpu_to_le32(hwif->dma_status);
         hwif->OUTL(ending_dma_addr, dma_base + IOC4_DMA_END_ADDR * 4);