path: root/arch/cris/include/asm/dma-mapping.h
diff options
authorFUJITA Tomonori <>2010-08-10 18:03:25 -0700
committerLinus Torvalds <>2010-08-11 08:59:21 -0700
commit3b9c6c11f519718d618f5d7c9508daf78b207f6f (patch)
tree6c99992e25b9305fbe3977dff30f5eeb445f25e0 /arch/cris/include/asm/dma-mapping.h
parentd80e0d96a328cc864a1cb359f545a6ed0c61812d (diff)
dma-mapping: remove dma_is_consistent API
Architectures implement dma_is_consistent() in different ways (some misinterpret the definition of API in DMA-API.txt). So it hasn't been so useful for drivers. We have only one user of the API in tree. Unlikely out-of-tree drivers use the API. Even if we fix dma_is_consistent() in some architectures, it doesn't look useful at all. It was invented long ago for some old systems that can't allocate coherent memory at all. It's better to export only APIs that are definitely necessary for drivers. Let's remove this API. Signed-off-by: FUJITA Tomonori <> Cc: James Bottomley <> Reviewed-by: Konrad Rzeszutek Wilk <> Cc: <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'arch/cris/include/asm/dma-mapping.h')
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index fc30fd0b2a04..8588b2ccf854 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -152,8 +152,6 @@ dma_set_mask(struct device *dev, u64 mask)
return 0;
-#define dma_is_consistent(d, h) (1)
static inline void
dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction)