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/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index 6ed75bf..ff43f1f 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -202,7 +202,7 @@
 void *iseries_hv_alloc(size_t size, dma_addr_t *dma_handle, gfp_t flag)
 {
 	return iommu_alloc_coherent(NULL, &vio_iommu_table, size, dma_handle,
-				DMA_32BIT_MASK, flag, -1);
+				DMA_BIT_MASK(32), flag, -1);
 }
 EXPORT_SYMBOL_GPL(iseries_hv_alloc);
 
@@ -217,7 +217,7 @@
 {
 	return iommu_map_page(NULL, &vio_iommu_table, virt_to_page(vaddr),
 			      (unsigned long)vaddr % PAGE_SIZE, size,
-			      DMA_32BIT_MASK, direction, NULL);
+			      DMA_BIT_MASK(32), direction, NULL);
 }
 
 void iseries_hv_unmap(dma_addr_t dma_handle, size_t size,