swiotlb: remove unnecessary swiotlb_sync_single_range_*

swiotlb_sync_single_range_for_cpu and swiotlb_sync_single_range_for_device
are unnecessary because swiotlb_sync_single_for_cpu and
swiotlb_sync_single_for_device can be used instead.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index febedcf..81a4e21 100644 (file)
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -73,16 +73,6 @@ extern void
 swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
                           int nelems, enum dma_data_direction dir);
 
-extern void
-swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
-                                 unsigned long offset, size_t size,
-                                 enum dma_data_direction dir);
-
-extern void
-swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr,
-                                    unsigned long offset, size_t size,
-                                    enum dma_data_direction dir);
-
 extern int
 swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
 

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 5fddf72..a009055 100644 (file)
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -756,37 +756,6 @@ swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
 }
 EXPORT_SYMBOL(swiotlb_sync_single_for_device);
 
-/*
- * Same as above, but for a sub-range of the mapping.
- */
-static void
-swiotlb_sync_single_range(struct device *hwdev, dma_addr_t dev_addr,
-                         unsigned long offset, size_t size,
-                         int dir, int target)
-{
-       swiotlb_sync_single(hwdev, dev_addr + offset, size, dir, target);
-}
-
-void
-swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
-                                 unsigned long offset, size_t size,
-                                 enum dma_data_direction dir)
-{
-       swiotlb_sync_single_range(hwdev, dev_addr, offset, size, dir,
-                                 SYNC_FOR_CPU);
-}
-EXPORT_SYMBOL_GPL(swiotlb_sync_single_range_for_cpu);
-
-void
-swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr,
-                                    unsigned long offset, size_t size,
-                                    enum dma_data_direction dir)
-{
-       swiotlb_sync_single_range(hwdev, dev_addr, offset, size, dir,
-                                 SYNC_FOR_DEVICE);
-}
-EXPORT_SYMBOL_GPL(swiotlb_sync_single_range_for_device);
-
 /*
  * Map a set of buffers described by scatterlist in streaming mode for DMA.
  * This is the scatter-gather version of the above swiotlb_map_page