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Re: [PATCH] x86/fpu: Revert earlier patch of Disable AVX when eagerfpu is off

From Yu-cheng Yu <yu-cheng.yu@intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH] x86/fpu: Revert earlier patch of Disable AVX when eagerfpu is off
Date 2016-03-09 18:30 +0100
Message-ID <raQ5Q-2LL-17@gated-at.bofh.it> (permalink)
References <qTV1U-3MA-1@gated-at.bofh.it> <raLIS-7XZ-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, Mar 09, 2016 at 01:46:26PM +0100, Ingo Molnar wrote:
> 
> * Yu-cheng Yu <yu-cheng.yu@intel.com> wrote:
> 
> > AVX was mistakenly believed to be dependent on eagerfpu switch.
> > This turns out to be false. The earlier patch should be reverted.
> > 
> > Original patch:
> >     http://git.kernel.org/tip/394db20ca240741a08d472173db13d6f6a6e5a28
> 
> So the original patch had a whole host of explanations of why that change is 
> correct. This revert should explain where that argumentation was wrong.

I will send out another version that includes more details.

Thanks,
Yu-cheng

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Thread

Re: [PATCH] x86/fpu: Revert earlier patch of Disable AVX when  eagerfpu is off Ingo Molnar <mingo@kernel.org> - 2016-03-09 13:50 +0100
  Re: [PATCH] x86/fpu: Revert earlier patch of Disable AVX when  eagerfpu is off Yu-cheng Yu <yu-cheng.yu@intel.com> - 2016-03-09 18:30 +0100
    Re: [PATCH] x86/fpu: Revert earlier patch of Disable AVX when  eagerfpu is off Ingo Molnar <mingo@kernel.org> - 2016-03-09 19:50 +0100
  Re: [PATCH] x86/fpu: Revert earlier patch of Disable AVX when  eagerfpu is off "H. Peter Anvin" <hpa@zytor.com> - 2016-03-09 20:00 +0100

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