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[03/12] frv: make dma_cache_sync a no-op

Message ID 20170827161032.22772-4-hch@lst.de (mailing list archive)
State New, archived
Headers show

Commit Message

Christoph Hellwig Aug. 27, 2017, 4:10 p.m. UTC 
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 <hch@lst.de>
---
 arch/frv/include/asm/dma-mapping.h | 1 -
 1 file changed, 1 deletion(-)
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Patch

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 */