linux-kernel - RE: [PATCH 1/2] perf tools: enable LBR call stack support

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Date:	Wed, 12 Nov 2014 14:44:42 +0000
From:	"Liang, Kan" <kan.liang@...el.com>
To:	Jiri Olsa <jolsa@...hat.com>
CC:	"acme@...nel.org" <acme@...nel.org>,
	"a.p.zijlstra@...llo.nl" <a.p.zijlstra@...llo.nl>,
	"eranian@...gle.com" <eranian@...gle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"paulus@...ba.org" <paulus@...ba.org>,
	"ak@...ux.intel.com" <ak@...ux.intel.com>
Subject: RE: [PATCH 1/2] perf tools: enable LBR call stack support



> PERF_SAMPLE_BRANCH_USER |
> > +
> 	PERF_SAMPLE_BRANCH_CALL_STACK;
> > +			attr->exclude_user = 0;
> 
> I think we shouldn't siletly change attr->exclude_user, if it was defined, we
> need to display warning that we are changing that or fail
> 

Right, I will display a warning here.

Thanks,
Kan

> jirka
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