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-rw-r--r--include/asm-x86/dma-mapping.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index aebd178a19ac..d320244db8af 100644
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -50,10 +50,20 @@ struct dma_mapping_ops {
int is_phys;
};
+extern const struct dma_mapping_ops *dma_ops;
+
#ifdef CONFIG_X86_32
# include "dma-mapping_32.h"
#else
# include "dma-mapping_64.h"
#endif
+static inline dma_addr_t
+dma_map_single(struct device *hwdev, void *ptr, size_t size,
+ int direction)
+{
+ BUG_ON(!valid_dma_direction(direction));
+ return dma_ops->map_single(hwdev, ptr, size, direction);
+}
+
#endif
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