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Re: [PATCH] arm64: cpufeature: check translation granule size based on kernel config

From Will Deacon <will.deacon@arm.com>
Newsgroups linux.kernel
Subject Re: [PATCH] arm64: cpufeature: check translation granule size based on kernel config
Date 2017-05-18 17:20 +0200
Message-ID <tIvnz-4vr-1@gated-at.bofh.it> (permalink)
References (2 earlier) <tIrWH-1NJ-41@gated-at.bofh.it> <tIsSJ-2yg-3@gated-at.bofh.it> <tIt2p-2Cz-5@gated-at.bofh.it> <tItlM-2Zs-13@gated-at.bofh.it> <tIuBb-3UN-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, May 18, 2017 at 03:24:15PM +0100, Mark Rutland wrote:
> On Thu, May 18, 2017 at 09:02:50PM +0800, Leo Yan wrote:
> > On Thu, May 18, 2017 at 01:41:15PM +0100, Mark Rutland wrote:
> > > diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
> > > index 94b8f7f..1f53314 100644
> > > --- a/arch/arm64/kernel/cpufeature.c
> > > +++ b/arch/arm64/kernel/cpufeature.c
> > > @@ -639,8 +639,8 @@ void update_cpu_features(int cpu,
> > >          * Mismatched CPU features are a recipe for disaster. Don't even
> > >          * pretend to support them.
> > >          */
> > > -       WARN_TAINT_ONCE(taint, TAINT_CPU_OUT_OF_SPEC,
> > > -                       "Unsupported CPU feature variation.\n");
> > > +       pr_warn_once("Unsupported CPU feature variation detected.\n");
> > > +       add_taint(TAINT_CPU_OUT_OF_SPEC);
> > 
> > Should be add_taint(TAINT_CPU_OUT_OF_SPEC, LOCKDEP_STILL_OK)?
> 
> Whoops; yes.

I've picked this up with the fix above.

Will

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Thread

[PATCH] arm64: cpufeature: check translation granule size based on kernel config Leo Yan <leo.yan@linaro.org> - 2017-05-18 12:30 +0200
  Re: [PATCH] arm64: cpufeature: check translation granule size based  on kernel config Suzuki K Poulose <Suzuki.Poulose@arm.com> - 2017-05-18 12:40 +0200
    Re: [PATCH] arm64: cpufeature: check translation granule size based  on kernel config Leo Yan <leo.yan@linaro.org> - 2017-05-18 13:40 +0200
      Re: [PATCH] arm64: cpufeature: check translation granule size based  on kernel config Will Deacon <will.deacon@arm.com> - 2017-05-18 14:40 +0200
        Re: [PATCH] arm64: cpufeature: check translation granule size based  on kernel config Mark Rutland <mark.rutland@arm.com> - 2017-05-18 14:50 +0200
          Re: [PATCH] arm64: cpufeature: check translation granule size based  on kernel config Leo Yan <leo.yan@linaro.org> - 2017-05-18 15:10 +0200
            Re: [PATCH] arm64: cpufeature: check translation granule size based  on kernel config Mark Rutland <mark.rutland@arm.com> - 2017-05-18 16:30 +0200
              Re: [PATCH] arm64: cpufeature: check translation granule size based  on kernel config Will Deacon <will.deacon@arm.com> - 2017-05-18 17:20 +0200
      Re: [PATCH] arm64: cpufeature: check translation granule size based  on kernel config Suzuki K Poulose <Suzuki.Poulose@arm.com> - 2017-05-18 14:40 +0200
        Re: [PATCH] arm64: cpufeature: check translation granule size based  on kernel config Leo Yan <leo.yan@linaro.org> - 2017-05-18 15:10 +0200

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