---

yaml --- r: 71126 b: refs/heads/master c: 8f286c3 h: refs/heads/master v: v3
git-mirror · Oct 18, 2007 · ff94878 · ff94878
1 parent 7f6e213
commit ff94878
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Showing 2 changed files with 9 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 34c6538413e5648b63cb785add509f500b3a7b11
+refs/heads/master: 8f286c33f1e838d631f4a3260b33efce4bc5973c
diff --git a/trunk/include/linux/dma-mapping.h b/trunk/include/linux/dma-mapping.h
@@ -13,9 +13,15 @@ enum dma_data_direction {
 	DMA_NONE = 3,
 };
 
-#define DMA_BIT_MASK(n)	((1ULL<<(n))-1)
+#define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
 
-#define DMA_64BIT_MASK	(~0ULL)
+/*
+ * NOTE: do not use the below macros in new code and do not add new definitions
+ * here.
+ *
+ * Instead, just open-code DMA_BIT_MASK(n) within your driver
+ */
+#define DMA_64BIT_MASK	DMA_BIT_MASK(64)
 #define DMA_48BIT_MASK	DMA_BIT_MASK(48)
 #define DMA_47BIT_MASK	DMA_BIT_MASK(47)
 #define DMA_40BIT_MASK	DMA_BIT_MASK(40)