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sparc: remove the mapping_error dma_map_ops method

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Sparc already returns (~(dma_addr_t)0x0) on mapping failures, so we can
switch over to returning DMA_MAPPING_ERROR and let the core dma-mapping
code handle the rest.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig
2018-11-21 18:59:05 +01:00
parent 44899aa31f
commit 06301c5e0a
3 changed files with 7 additions and 21 deletions
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2
arch/sparc/kernel/iommu_common.h
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@@ -48,6 +48,4 @@ static inline int is_span_boundary(unsigned long entry,
return iommu_is_span_boundary(entry, nr, shift, boundary_size);
}
#define SPARC_MAPPING_ERROR (~(dma_addr_t)0x0)
#endif /* _IOMMU_COMMON_H */