[PATCH 07/12] mn10300: make dma_cache_sync a no-op
From: Christoph Hellwig <hch@lst.de>
Date: 2017-08-27 16:11:03
Also in:
linux-iommu, linux-mips, linux-sh, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
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@lst.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