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Commit 622bd022 authored by Christoph Hellwig's avatar Christoph Hellwig
Browse files

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: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarRobin Murphy <robin.murphy@arm.com>
parent 64dc8700

arch/mn10300/include/asm/dma-mapping.h

+0 −4
Original line number Diff line number Diff line
@@ -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