dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

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/ipg.c b/drivers/net/ipg.c
index ed9ded9..4301946 100644
--- a/drivers/net/ipg.c
+++ b/drivers/net/ipg.c
@@ -2242,7 +2242,7 @@
 
 	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(40));
 	if (rc < 0) {
-		rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (rc < 0) {
 			printk(KERN_ERR "%s: DMA config failed.\n",
 			       pci_name(pdev));