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asm-generic: remove ARCH_HAS_SG_CHAIN in scatterlist.h
There are more architectures that don't support ARCH_HAS_SG_CHAIN than those that support it. This removes removes ARCH_HAS_SG_CHAIN in asm-generic/scatterlist.h and lets arhictectures to define it. It's clearer than defining ARCH_HAS_SG_CHAIN asm-generic/scatterlist.h and undefing it in arhictectures that don't support it. Signed-off-by: FUJITA Tomonori <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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8 changed files with 12 additions and 16 deletions
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@ -31,6 +31,4 @@ struct scatterlist {
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#define sg_dma_len(sg) ((sg)->length)
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#endif
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#define ARCH_HAS_SG_CHAIN
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#endif /* __ASM_GENERIC_SCATTERLIST_H */
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