1 files changed, 1 insertions, 5 deletions

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 07dfd460d286..91b761846061 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -58,6 +58,7 @@ struct dma_map_ops {
                                    enum dma_data_direction dir);
         int (*mapping_error)(struct device *dev, dma_addr_t dma_addr);
         int (*dma_supported)(struct device *dev, u64 mask);
+        int (*set_dma_mask)(struct device *dev, u64 mask);
         int is_phys;
 };
 
@@ -98,11 +99,6 @@ static inline int is_device_dma_capable(struct device *dev)
         return dev->dma_mask != NULL && *dev->dma_mask != DMA_MASK_NONE;
 }
 
-static inline int is_buffer_dma_capable(u64 mask, dma_addr_t addr, size_t size)
-{
-        return addr + size <= mask;
-}
-
 #ifdef CONFIG_HAS_DMA
 #include <asm/dma-mapping.h>
 #else