dma-mapping: replace all DMA_31BIT_MASK macro with DMA_BIT_MASK(31)

Replace all DMA_31BIT_MASK macro with DMA_BIT_MASK(31)

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/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 3c3ed4b..9b97c3e 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1103,8 +1103,8 @@
 	 * to driver communication memory to be allocated below 2gig
 	 */
 	if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
-		if (pci_set_dma_mask(pdev, DMA_31BIT_MASK) ||
-				pci_set_consistent_dma_mask(pdev, DMA_31BIT_MASK))
+		if (pci_set_dma_mask(pdev, DMA_BIT_MASK(31)) ||
+				pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(31)))
 			goto out_disable_pdev;
 
 	pci_set_master(pdev);