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fedora core 6 1.2949 + vserver 2.2.0
[linux-2.6.git]
/
include
/
linux
/
dma-mapping.h
diff --git
a/include/linux/dma-mapping.h
b/include/linux/dma-mapping.h
index
635690c
..
ff203c4
100644
(file)
--- a/
include/linux/dma-mapping.h
+++ b/
include/linux/dma-mapping.h
@@
-24,6
+24,13
@@
enum dma_data_direction {
#define DMA_28BIT_MASK 0x000000000fffffffULL
#define DMA_24BIT_MASK 0x0000000000ffffffULL
#define DMA_28BIT_MASK 0x000000000fffffffULL
#define DMA_24BIT_MASK 0x0000000000ffffffULL
+static inline int valid_dma_direction(int dma_direction)
+{
+ return ((dma_direction == DMA_BIDIRECTIONAL) ||
+ (dma_direction == DMA_TO_DEVICE) ||
+ (dma_direction == DMA_FROM_DEVICE));
+}
+
#include <asm/dma-mapping.h>
/* Backwards compat, remove in 2.7.x */
#include <asm/dma-mapping.h>
/* Backwards compat, remove in 2.7.x */