From: Christoph Hellwig Date: Thu, 6 Dec 2018 20:24:27 +0000 (-0800) Subject: dma-mapping: merge dma_unmap_page_attrs and dma_unmap_single_attrs X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=7f0fee242e899f2eb42fd9e72bcfc3cb59aad1ce;p=openwrt%2Fstaging%2Fblogic.git dma-mapping: merge dma_unmap_page_attrs and dma_unmap_single_attrs The two functions are exactly the same, so don't bother implementing them twice. Signed-off-by: Christoph Hellwig Acked-by: Jesper Dangaard Brouer Tested-by: Jesper Dangaard Brouer Tested-by: Tony Luck --- diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 8916499d2805..3b431cc58794 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -253,6 +253,12 @@ static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t addr, debug_dma_unmap_page(dev, addr, size, dir, true); } +static inline void dma_unmap_page_attrs(struct device *dev, dma_addr_t addr, + size_t size, enum dma_data_direction dir, unsigned long attrs) +{ + return dma_unmap_single_attrs(dev, addr, size, dir, attrs); +} + /* * dma_maps_sg_attrs returns 0 on error and > 0 on success. * It should never return a value < 0. @@ -300,19 +306,6 @@ static inline dma_addr_t dma_map_page_attrs(struct device *dev, return addr; } -static inline void dma_unmap_page_attrs(struct device *dev, - dma_addr_t addr, size_t size, - enum dma_data_direction dir, - unsigned long attrs) -{ - const struct dma_map_ops *ops = get_dma_ops(dev); - - BUG_ON(!valid_dma_direction(dir)); - if (ops->unmap_page) - ops->unmap_page(dev, addr, size, dir, attrs); - debug_dma_unmap_page(dev, addr, size, dir, false); -} - static inline dma_addr_t dma_map_resource(struct device *dev, phys_addr_t phys_addr, size_t size,