From 3b9c6c11f519718d618f5d7c9508daf78b207f6f Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 10 Aug 2010 18:03:25 -0700 Subject: 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 --- arch/cris/include/asm/dma-mapping.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch/cris') diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h index fc30fd0..8588b2c 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) -- cgit v1.1