[SCSI] cciss 2.6 DMA mapping

Patch removes our homegrown DMA masks and uses the ones defined in the kernel.
This patch replaces the broken one I sent in earlier. It has been tested and works. Please discard the first submission.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 3 insertions, 9 deletions

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 8f7c1a1ed7f4..abde27027c06 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -41,6 +41,7 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
+#include <linux/dma-mapping.h>
 #include <linux/blkdev.h>
 #include <linux/genhd.h>
 #include <linux/completion.h>
@@ -126,8 +127,6 @@ static struct board_type products[] = {
 #define MAX_CTLR_ORIG   8
 
 
-#define CCISS_DMA_MASK  0xFFFFFFFF      /* 32 bit DMA */
-
 static ctlr_info_t *hba[MAX_CTLR];
 
 static void do_cciss_request(request_queue_t *q);
@@ -2393,11 +2392,6 @@ static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
                 printk(KERN_ERR "cciss: Unable to Enable PCI device\n");
                 return( -1);
         }
-        if (pci_set_dma_mask(pdev, CCISS_DMA_MASK ) != 0)
-        {
-                printk(KERN_ERR "cciss:  Unable to set DMA mask\n");
-                return(-1);
-        }
 
         subsystem_vendor_id = pdev->subsystem_vendor;
         subsystem_device_id = pdev->subsystem_device;
@@ -2747,9 +2741,9 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
         hba[i]->pdev = pdev;
 
         /* configure PCI DMA stuff */
-        if (!pci_set_dma_mask(pdev, 0xffffffffffffffffULL))
+        if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK))
                 printk("cciss: using DAC cycles\n");
-        else if (!pci_set_dma_mask(pdev, 0xffffffff))
+        else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK))
                 printk("cciss: not using DAC cycles\n");
         else {
                 printk("cciss: no suitable DMA available\n");