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-rw-r--r--include/linux/dma-mapping.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index ff61817082fa..635690cf3e3d 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -14,6 +14,7 @@ enum dma_data_direction {
};
#define DMA_64BIT_MASK 0xffffffffffffffffULL
+#define DMA_48BIT_MASK 0x0000ffffffffffffULL
#define DMA_40BIT_MASK 0x000000ffffffffffULL
#define DMA_39BIT_MASK 0x0000007fffffffffULL
#define DMA_32BIT_MASK 0x00000000ffffffffULL