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SubjectRe: [PATCH] perf/x86: check ucode before disabling PEBS on SandyBridge
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On Fri, Jun 8, 2012 at 4:23 PM, Peter Zijlstra <peterz@infradead.org> wrote:
> On Fri, 2012-06-08 at 16:07 +0200, Stephane Eranian wrote:
>> > +extern struct blocking_notifier_head microcode_notifier;
>> > +
>> That is a problem because microcode can be compiled as a module.
>> When I tried compiling your patch I got undefined for this notifier because
>> I have microcode update as a module...
>
> Ah, no, setup.c needs an EXPORT_SYMBOL_GPL(microcode_notifier);. Then it
> all builds again.
>

Yes, it works with this now!
Thanks.


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