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

[Will Deacon]

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