dma-mapping: remove unnecessary sync_single_range_* in dma_map_ops

sync_single_range_for_cpu and sync_single_range_for_device hooks are
unnecessary because sync_single_for_cpu and sync_single_for_device can
be used instead.
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Reviewed-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/asm-generic/dma-mapping-common.h

@@ -123,14 +123,6 @@ static inline void dma_sync_single_range_for_cpu(struct device *dev,
 						 size_t size,
 						 enum dma_data_direction dir)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!valid_dma_direction(dir));
-	if (ops->sync_single_range_for_cpu) {
-		ops->sync_single_range_for_cpu(dev, addr, offset, size, dir);
-		debug_dma_sync_single_range_for_cpu(dev, addr, offset, size, dir);
-
-	} else
 	dma_sync_single_for_cpu(dev, addr + offset, size, dir);
 }
 
@@ -140,14 +132,6 @@ static inline void dma_sync_single_range_for_device(struct device *dev,
 						    size_t size,
 						    enum dma_data_direction dir)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!valid_dma_direction(dir));
-	if (ops->sync_single_range_for_device) {
-		ops->sync_single_range_for_device(dev, addr, offset, size, dir);
-		debug_dma_sync_single_range_for_device(dev, addr, offset, size, dir);
-
-	} else
 	dma_sync_single_for_device(dev, addr + offset, size, dir);
 }
 

include/linux/dma-mapping.h

@@ -40,16 +40,6 @@ struct dma_map_ops {
 	void (*sync_single_for_device)(struct device *dev,
 				       dma_addr_t dma_handle, size_t size,
 				       enum dma_data_direction dir);
-	void (*sync_single_range_for_cpu)(struct device *dev,
-					  dma_addr_t dma_handle,
-					  unsigned long offset,
-					  size_t size,
-					  enum dma_data_direction dir);
-	void (*sync_single_range_for_device)(struct device *dev,
-					     dma_addr_t dma_handle,
-					     unsigned long offset,
-					     size_t size,
-					     enum dma_data_direction dir);
 	void (*sync_sg_for_cpu)(struct device *dev,
 				struct scatterlist *sg, int nents,
 				enum dma_data_direction dir);