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/ipg.c b/drivers/net/ipg.c
index 360aa5e..ed9ded9 100644
--- a/drivers/net/ipg.c
+++ b/drivers/net/ipg.c
@@ -2240,7 +2240,7 @@
 
 	pci_set_master(pdev);
 
-	rc = pci_set_dma_mask(pdev, DMA_40BIT_MASK);
+	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(40));
 	if (rc < 0) {
 		rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
 		if (rc < 0) {