dma-mapping: replace all DMA_40BIT_MASK macro with DMA_BIT_MASK(40)

Replace all DMA_40BIT_MASK macro with DMA_BIT_MASK(40)

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/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 03403a5..5b87105 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -1685,7 +1685,7 @@
 	 * fail to 32-bit.
 	 */
 
-	err = pci_set_dma_mask(pdev, DMA_40BIT_MASK);
+	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40));
 	if (err) {
 		err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
 		if (err) {
@@ -1701,7 +1701,7 @@
 			goto err_out_release_regions;
 		}
 	} else {
-		err = pci_set_consistent_dma_mask(pdev, DMA_40BIT_MASK);
+		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40));
 		if (err) {
 			printk(KERN_ERR PFX
 				"Unable to obtain 40-bit DMA "