[mm PATCH v2 01/26] swiotlb: Drop unused functions swiotlb_map_sg and swiotlb_unmap_sg
From: Alexander Duyck <hidden>
Date: 2016-11-02 17:13:30
Also in:
linux-mm, lkml
Subsystem:
dma mapping helpers, library code, the rest · Maintainers:
Marek Szyprowski, Andrew Morton, Linus Torvalds
There are no users for swiotlb_map_sg or swiotlb_unmap_sg so we might as well just drop them. Cc: Konrad Rzeszutek Wilk <redacted> Signed-off-by: Alexander Duyck <redacted> --- v2: Added swiotlb_unmap_sg to functions dropped. include/linux/swiotlb.h | 8 -------- lib/swiotlb.c | 16 ---------------- 2 files changed, 24 deletions(-)
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 5f81f8a..f0d2589 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h@@ -73,14 +73,6 @@ extern void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, unsigned long attrs); extern int -swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents, - enum dma_data_direction dir); - -extern void -swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents, - enum dma_data_direction dir); - -extern int swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems, enum dma_data_direction dir, unsigned long attrs);
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 22e13a0..5005316 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c@@ -910,14 +910,6 @@ void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, } EXPORT_SYMBOL(swiotlb_map_sg_attrs); -int -swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, - enum dma_data_direction dir) -{ - return swiotlb_map_sg_attrs(hwdev, sgl, nelems, dir, 0); -} -EXPORT_SYMBOL(swiotlb_map_sg); - /* * Unmap a set of streaming mode DMA translations. Again, cpu read rules * concerning calls here are the same as for swiotlb_unmap_page() above.
@@ -938,14 +930,6 @@ void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, } EXPORT_SYMBOL(swiotlb_unmap_sg_attrs); -void -swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, - enum dma_data_direction dir) -{ - return swiotlb_unmap_sg_attrs(hwdev, sgl, nelems, dir, 0); -} -EXPORT_SYMBOL(swiotlb_unmap_sg); - /* * Make physical memory consistent for a set of streaming mode DMA translations * after a transfer.