| Date | Fri, 8 Jun 2012 16:26:37 +0200 | Subject | Re: [PATCH] perf/x86: check ucode before disabling PEBS on SandyBridge | From | Stephane Eranian <> |
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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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