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Date: Wed, 2 Jul 2014 15:28:56 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: "Yan, Zheng" <zheng.z.yan@intel.com>, LKML <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@kernel.org>,
        Arnaldo Carvalho de Melo <acme@infradead.org>,
        Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH V4 10/16] perf, core: simplify need branch stack check
Message-ID: <20140702132856.GF19379@twins.programming.kicks-ass.net>
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On Wed, Jul 02, 2014 at 03:00:52PM +0200, Stephane Eranian wrote:
> He is probably talking about precise=2 for non HSW PMU.
> But it is true,  you need to look at x86_pmu_hw_config()
>  *br_type = PERF_SAMPLE_BRANCH_ANY;

Ah! indeed. And that is why I didn't find it, I was looking:
"branch_sample_type[[:space:]]*=" and we've obscured it with that
br_type thing.

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