LinuxKPI: add DMA_MAPPING_ERROR
While we deal with 0 returned, some drivers directly use and check for DMA_MAPPING_ERROR. Add the case and check for both in dma_mapping_error(). MFC after: 1 week Reviewed by: hselasky Differential Revision: https://reviews.freebsd.org/D36686
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@ -288,11 +288,15 @@ dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
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{
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}
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#define DMA_MAPPING_ERROR (~(dma_addr_t)0)
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static inline int
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dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
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{
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return (dma_addr == 0);
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if (dma_addr == 0 || dma_addr == DMA_MAPPING_ERROR)
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return (-ENOMEM);
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return (0);
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}
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static inline unsigned int dma_set_max_seg_size(struct device *dev,
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