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-rw-r--r--include/asm-x86/dma-mapping.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index b331a8d3a7c..51a79d71dab 100644
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -185,4 +185,10 @@ static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
dma_unmap_single(dev, addr, size, direction);
}
+static inline void
+dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+ enum dma_data_direction dir)
+{
+ flush_write_buffers();
+}
#endif