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Re: [PATCH] x86/hweight: Don't clobber %rdi

From Jiri Kosina <jikos@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH] x86/hweight: Don't clobber %rdi
Date 2016-08-08 21:00 +0200
Message-ID <s3XWi-55N-27@gated-at.bofh.it> (permalink)
References <s3WGR-4qo-25@gated-at.bofh.it> <s3X0d-4wO-1@gated-at.bofh.it> <s3XCW-4YT-5@gated-at.bofh.it>
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On Mon, 8 Aug 2016, Peter Zijlstra wrote:

> > > The caller expects %rdi to remain intact, push+pop it make that happen.
> > 
> > Indeed. Applied,
> 
> See also:
> 
>   lkml.kernel.org/r/alpine.LNX.2.00.1608081634530.22028@cbobk.fhfr.pm

Ville's patch is the proper thing to do; I still think the comments 
probably should be removed as they might provide more confusion than help, 
but that's a separate discussion.

Thanks,

-- 
Jiri Kosina
SUSE Labs

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Thread

[PATCH] x86/hweight: Don't clobber %rdi ville.syrjala@linux.intel.com - 2016-08-08 19:40 +0200
  Re: [PATCH] x86/hweight: Don't clobber %rdi Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-08 20:00 +0200
    Re: [PATCH] x86/hweight: Don't clobber %rdi Peter Zijlstra <peterz@infradead.org> - 2016-08-08 20:40 +0200
      Re: [PATCH] x86/hweight: Don't clobber %rdi Jiri Kosina <jikos@kernel.org> - 2016-08-08 21:00 +0200
        Re: [PATCH] x86/hweight: Don't clobber %rdi Borislav Petkov <bp@alien8.de> - 2016-08-08 21:40 +0200
  Re: [PATCH] x86/hweight: Don't clobber %rdi Borislav Petkov <bp@alien8.de> - 2016-08-08 20:10 +0200
    Re: [PATCH] x86/hweight: Don't clobber %rdi Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-08 20:30 +0200
      Re: [PATCH] x86/hweight: Don't clobber %rdi Borislav Petkov <bp@alien8.de> - 2016-08-08 20:40 +0200
        Re: [PATCH] x86/hweight: Don't clobber %rdi Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-08 20:50 +0200
          Re: [PATCH] x86/hweight: Don't clobber %rdi Borislav Petkov <bp@alien8.de> - 2016-08-08 21:00 +0200

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