Re: [PATCH V4 10/16] perf, core: simplify need branch stack check

[Peter Zijlstra]

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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