[Uclinux-h8-devel] [PATCH 4/6] [v2] arc: use generic strncpy/strnlen from_user

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Christoph Hellwig hch****@lst*****
2021年 5月 17日 (月) 15:16:56 JST


On Sat, May 15, 2021 at 12:18:01PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd****@arndb*****>
> 
> Most per-architecture versions of these functions are broken
> in some form, and they are almost certainly slower than the
> generic code as well.
> 
> This version is fairly slow because it always does byte accesses
> even for aligned data, and its checks for user_addr_max() differ
> from the generic code.
> 
> Remove the ones for arc and instead use the generic version.

Same comment as for hexaon before.



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