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

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Message-ID: <20160222114524.GA6357@twins.programming.kicks-ass.net>
Date:	Mon, 22 Feb 2016 12:45:24 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Thomas Gleixner <tglx@...utronix.de>
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, Feb 22, 2016 at 11:06:50AM -0000, Thomas Gleixner wrote:
> Index: b/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
> ===================================================================
> --- a/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
> +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
> @@ -313,6 +313,7 @@ static int snb_uncore_imc_event_init(str
>  		return -EINVAL;
>  
>  	event->cpu = box->cpu;
> +	event->pmu_private = pmu;

This seems rather pointless, did you want that to be '= box' instead?

>  
>  	event->hw.idx = -1;
>  	event->hw.last_tag = ~0ULL;
> 
>