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/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 1c5c8a6..53c7788 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -94,7 +94,7 @@
 	 * done via some global so platforms can set the limit in case
 	 * they have limited DMA windows
 	 */
-	return mask >= DMA_32BIT_MASK;
+	return mask >= DMA_BIT_MASK(32);
 #else
 	return 1;
 #endif
diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c
index 3f37a6e..87df428 100644
--- a/arch/powerpc/kernel/of_platform.c
+++ b/arch/powerpc/kernel/of_platform.c
@@ -76,7 +76,7 @@
 		return NULL;
 
 	dev->dma_mask = 0xffffffffUL;
-	dev->dev.coherent_dma_mask = DMA_32BIT_MASK;
+	dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
 	dev->dev.bus = &of_platform_bus_type;