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Date: Sun, 27 Aug 2017 18:10:27 +0200 From: Christoph Hellwig <hch@....de> To: iommu@...ts.linux-foundation.org Cc: Marek Szyprowski <m.szyprowski@...sung.com>, Robin Murphy <robin.murphy@....com>, Michal Simek <monstr@...str.eu>, David Howells <dhowells@...hat.com>, Guan Xuetao <gxt@...c.pku.edu.cn>, Chris Zankel <chris@...kel.net>, Max Filippov <jcmvbkbc@...il.com>, x86@...nel.org, linux-mips@...ux-mips.org, linux-ia64@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org, linux-xtensa@...ux-xtensa.org, linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH 07/12] mn10300: make dma_cache_sync a no-op mn10300 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 <hch@....de> --- arch/mn10300/include/asm/dma-mapping.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h index 737ef574b3ea..dc24163b190f 100644 --- a/arch/mn10300/include/asm/dma-mapping.h +++ b/arch/mn10300/include/asm/dma-mapping.h @@ -11,9 +11,6 @@ #ifndef _ASM_DMA_MAPPING_H #define _ASM_DMA_MAPPING_H -#include <asm/cache.h> -#include <asm/io.h> - extern const struct dma_map_ops mn10300_dma_ops; static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) @@ -25,7 +22,6 @@ static inline void dma_cache_sync(void *vaddr, size_t size, enum dma_data_direction direction) { - mn10300_dcache_flush_inv(); } #endif -- 2.11.0
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