[PATCH v3] lib/raid/xor: x86: Add AVX-512 optimized xor_gen()

Christoph Hellwig hch at lst.de
Tue Jun 16 22:44:56 PDT 2026


On Mon, Jun 15, 2026 at 05:29:58PM -0700, Dave Hansen wrote:
> On 6/15/26 16:53, Borislav Petkov wrote:
> > 
> >> In any case, I'd like these to go away:
> >>
> >>     $ git grep cpu_has_xfeatures | wc -l
> >>     31
> > Yeah, all in crypto. I can certainly see why.
> > 
> > @dhansen, any other thoughts?
> 
> If we can get rid of cpu_has_xfeatures(), I'm all for it. I'm not quite
> sure how the code would look so I'm reserving judgement until I see the
> patches. But it's worth a try.

I think the most important part is to be consistent.  Either use it
everywhere or not at all.



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