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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
[linux-2.6-microblaze.git]
/
include
/
linux
/
dma-direction.h
diff --git
a/include/linux/dma-direction.h
b/include/linux/dma-direction.h
index
9c96e30
..
a2fe457
100644
(file)
--- a/
include/linux/dma-direction.h
+++ b/
include/linux/dma-direction.h
@@
-9,4
+9,10
@@
enum dma_data_direction {
DMA_NONE = 3,
};
-#endif
+static inline int valid_dma_direction(enum dma_data_direction dir)
+{
+ return dir == DMA_BIDIRECTIONAL || dir == DMA_TO_DEVICE ||
+ dir == DMA_FROM_DEVICE;
+}
+
+#endif /* _LINUX_DMA_DIRECTION_H */