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Date:	Wed, 20 May 2015 20:50:36 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Vikas Shivappa <vikas.shivappa@...el.com>
cc:	Vikas Shivappa <vikas.shivappa@...ux.intel.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	tj@...nel.org, peterz@...radead.org, matt.fleming@...el.com,
	will.auld@...el.com, peter.zijlstra@...el.com,
	h.peter.anvin@...el.com, kanaka.d.juvva@...el.com,
	mtosatti@...hat.com
Subject: Re: [PATCH 5/7] x86/intel_rdt: Software Cache for IA32_PQR_MSR

On Wed, 20 May 2015, Vikas Shivappa wrote:
> On Fri, 15 May 2015, Thomas Gleixner wrote:
> > > -static DEFINE_PER_CPU(struct intel_cqm_state, cqm_state);
> > > +DEFINE_PER_CPU(struct intel_pqr_state, pqr_state);
> > 
> > With CONFIG_PERF=n and CONFIG_CGROUP_RDT=y the linker will fail.
> 
> copy from Makefile below -
> obj-$(CONFIG_CPU_SUP_INTEL)             += perf_event_intel_rapl.o
> perf_event_intel_cqm.o
> 
> should work with CONFIG_PERF_EVENTS=n and CGROUP_RDT=y ?

Groan. Did you try to compile it? Certainly not.

Simply because the whole section which contains perf_event* object
files is conditional on

ifdef CONFIG_PERF_EVENTS

I'm starting to get really grumpy and tired of your attitude.

Thanks,

	tglx


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