dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)

Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/sn/ioc3.c b/drivers/sn/ioc3.c
index a0aa33d..816d4c5 100644
--- a/drivers/sn/ioc3.c
+++ b/drivers/sn/ioc3.c
@@ -617,9 +617,9 @@
 	pci_set_master(pdev);
 
 #ifdef USE_64BIT_DMA
-        ret = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+        ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
         if (!ret) {
-                ret = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+                ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
                 if (ret < 0) {
                         printk(KERN_WARNING "%s: Unable to obtain 64 bit DMA "
                                "for consistent allocations\n",