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| author | Rolf Eike Beer <eike-kernel@sf-tec.de> | 2006-09-29 01:59:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-29 09:18:10 -0700 |
| commit | d6bd3a39f7c6ebad49c261c3d458df974c880758 (patch) | |
| tree | a5cf6054a8ff276f8d84ba94bb5df89ed5646332 /include/linux/dma-mapping.h | |
| parent | d09d7ddf3018b4c6efa76dce72f6dec6054fa22b (diff) | |
| download | linux-stable-d6bd3a39f7c6ebad49c261c3d458df974c880758.tar.gz linux-stable-d6bd3a39f7c6ebad49c261c3d458df974c880758.tar.bz2 linux-stable-d6bd3a39f7c6ebad49c261c3d458df974c880758.zip | |
[PATCH] Move valid_dma_direction() from x86_64 to generic code
As suggested by Muli Ben-Yehuda this function is moved to generic code as
may be useful for all archs.
[akpm@osdl.org: fix]
Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/dma-mapping.h')
| -rw-r--r-- | include/linux/dma-mapping.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 635690cf3e3d..ff203c465fed 100644 --- 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 +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 */ |