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| author | Christoph Hellwig <hch@lst.de> | 2021-08-09 17:19:36 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-08-14 09:18:36 +0200 |
| commit | 2a047e0662aee1bd773e0415accd785ad26a9398 (patch) | |
| tree | bc3bb16facaa48e0f53e66c609371fae583798fa /include/linux/dma-mapping.h | |
| parent | d03c54419274f96434e2ad74e59e67ec6d54ca86 (diff) | |
| download | lwn-2a047e0662aee1bd773e0415accd785ad26a9398.tar.gz lwn-2a047e0662aee1bd773e0415accd785ad26a9398.zip | |
dma-mapping: return an unsigned int from dma_map_sg{,_attrs}
These can only return 0 for failure or the number of entries, so turn
the return value into an unsigned int.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Diffstat (limited to 'include/linux/dma-mapping.h')
| -rw-r--r-- | include/linux/dma-mapping.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index daa1e360f0ee..dca2b1355bb1 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -105,8 +105,8 @@ dma_addr_t dma_map_page_attrs(struct device *dev, struct page *page, unsigned long attrs); void dma_unmap_page_attrs(struct device *dev, dma_addr_t addr, size_t size, enum dma_data_direction dir, unsigned long attrs); -int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir, unsigned long attrs); +unsigned int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction dir, unsigned long attrs); void dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir, unsigned long attrs); @@ -166,8 +166,9 @@ 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) { } -static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir, unsigned long attrs) +static inline unsigned int dma_map_sg_attrs(struct device *dev, + struct scatterlist *sg, int nents, enum dma_data_direction dir, + unsigned long attrs) { return 0; } |