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authorChristoph Hellwig <hch@lst.de>2017-08-27 09:59:32 +0200
committerChristoph Hellwig <hch@lst.de>2017-10-19 16:37:18 +0200
commit9d254b8e409e90db21384974f4725bff369c333f (patch)
tree35ed6edfb69ba967e59144c98cf4f48fc998f9c8 /arch/frv
parent95e499fc7fe9c58efedc079634582164de6bbd90 (diff)
downloadlinux-9d254b8e409e90db21384974f4725bff369c333f.tar.bz2
frv: make dma_cache_sync a no-op
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> Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch/frv')
-rw-r--r--arch/frv/include/asm/dma-mapping.h1
1 files changed, 0 insertions, 1 deletions
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 */