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Diffstat (limited to 'include/asm-x86/dma-mapping.h')
-rw-r--r--include/asm-x86/dma-mapping.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index 09011546a48..6e7747a23e5 100644
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -82,4 +82,13 @@ dma_map_sg(struct device *hwdev, struct scatterlist *sg,
BUG_ON(!valid_dma_direction(direction));
return dma_ops->map_sg(hwdev, sg, nents, direction);
}
+
+static inline void
+dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
+ int direction)
+{
+ BUG_ON(!valid_dma_direction(direction));
+ if (dma_ops->unmap_sg)
+ dma_ops->unmap_sg(hwdev, sg, nents, direction);
+}
#endif