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swiotlb: do not export map_single function
The map_single() function is not defined as static, even though it doesn't seem to be used anywhere else in the kernel. Make it static to avoid namespace pollution since this is a rather generic symbol. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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@ -537,8 +537,9 @@ EXPORT_SYMBOL_GPL(swiotlb_tbl_map_single);
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* Allocates bounce buffer and returns its kernel virtual address.
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*/
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phys_addr_t map_single(struct device *hwdev, phys_addr_t phys, size_t size,
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enum dma_data_direction dir)
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static phys_addr_t
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map_single(struct device *hwdev, phys_addr_t phys, size_t size,
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enum dma_data_direction dir)
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{
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dma_addr_t start_dma_addr = phys_to_dma(hwdev, io_tlb_start);
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