xtensa: remove DMA_ERROR_CODE
xtensa already implements the mapping_error method for its only dma_map_ops instance. Signed-off-by: Christoph Hellwig <hch@lst.de>
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@ -16,8 +16,6 @@
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#include <linux/mm.h>
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#include <linux/scatterlist.h>
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#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
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extern const struct dma_map_ops xtensa_dma_map_ops;
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static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
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