linux-kernel - Re: [patch V2 10/28] x86/perf/intel_uncore: Store box in event->pmu

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Message-ID: <alpine.DEB.2.11.1602221300200.2477@nanos>
Date:	Mon, 22 Feb 2016 13:00:35 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Peter Zijlstra <peterz@...radead.org>
cc:	LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
	Borislav Petkov <bp@...en8.de>,
	Stephane Eranian <eranian@...gle.com>,
	Harish Chegondi <harish.chegondi@...el.com>,
	Kan Liang <kan.liang@...el.com>,
	Andi Kleen <andi.kleen@...el.com>,
	Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: Re: [patch V2 10/28] x86/perf/intel_uncore: Store box in
 event->pmu_private

On Mon, 22 Feb 2016, Peter Zijlstra wrote:
> On Mon, Feb 22, 2016 at 11:06:50AM -0000, Thomas Gleixner wrote:
> > +	event->pmu_private = box;
> 
> > +static inline struct intel_uncore_box *uncore_event_to_box(struct perf_event *event)
> > +{
> > +	return event->pmu_private;
> > +}
> 
> Do you really need this? That is, what is wrong with:
> 
> static inline struct intel_uncore_box *uncore_event_to_box(struct perf_event *event)
> {
> 	return uncore_pmu_to_box(event->pmu, event->cpu);
> }
> 
> Which, after patch 12, should be fairly trivial, right?
 
Yes.