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