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authorChristoph Hellwig <hch@lst.de>2017-08-27 11:16:02 +0300
committerChristoph Hellwig <hch@lst.de>2017-10-19 17:37:29 +0300
commit622bd022078263fdebb566c32804551812576432 (patch)
tree59a1891fd527a8fe696bb5738af75cd32860b271 /arch/mn10300
parent64dc8700c01d94c46fd26b38b7e7d2891934a33b (diff)
downloadlinux-622bd022078263fdebb566c32804551812576432.tar.xz
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@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch/mn10300')
-rw-r--r--arch/mn10300/include/asm/dma-mapping.h4
1 files changed, 0 insertions, 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