From 9d254b8e409e90db21384974f4725bff369c333f Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 27 Aug 2017 09:59:32 +0200 Subject: [PATCH] frv: make dma_cache_sync a no-op frv does not implement DMA_ATTR_NON_CONSISTENT allocations, so it doesn't make any sense to do any work in dma_cache_sync given that it must be a no-op when dma_alloc_attrs returns coherent memory. Signed-off-by: Christoph Hellwig Reviewed-by: Robin Murphy --- arch/frv/include/asm/dma-mapping.h | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h index 354900917585..da0e5c9744c4 100644 --- a/arch/frv/include/asm/dma-mapping.h +++ b/arch/frv/include/asm/dma-mapping.h @@ -18,7 +18,6 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { - flush_write_buffers(); } #endif /* _ASM_DMA_MAPPING_H */