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-rw-r--r--include/linux/types.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/types.h b/include/linux/types.h
index 4d118ba..a0bb704 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -142,6 +142,7 @@ typedef unsigned long blkcnt_t;
#define pgoff_t unsigned long
#endif
+/* A dma_addr_t can hold any valid DMA or bus address for the platform */
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
typedef u64 dma_addr_t;
#else
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