linux-kernel - Re: [PATCH] perf report: auto-detect branch stack sampling mode

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Message-ID: <CABPqkBT=po0=-oi0GgGEVCNCxuSMwMyh5vPz=sWcNrqSZDc68Q@mail.gmail.com>
Date:	Fri, 24 Feb 2012 16:51:56 +0100
From:	Stephane Eranian <eranian@...gle.com>
To:	David Ahern <dsahern@...il.com>
Cc:	linux-kernel@...r.kernel.org, acme@...hat.com,
	peterz@...radead.org, mingo@...e.hu, ravitillo@....gov,
	khandual@...ux.vnet.ibm.com, asharma@...com,
	robert.richter@....com, ming.m.lin@...el.com,
	vweaver1@...s.utk.edu, andi@...stfloor.org
Subject: Re: [PATCH] perf report: auto-detect branch stack sampling mode

On Fri, Feb 24, 2012 at 4:49 PM, David Ahern <dsahern@...il.com> wrote:
> On 2/24/12 8:40 AM, Stephane Eranian wrote:
>>
>> No, I don't. Read the code carefully. The for loop sets all known feature
>> bits.
>> Then, the ones not necessary or unused are turned off individually.
>
>
> Ok, I see now. The __set_feat loop is earlier in builtin-record.c, not the
> util code.
>
Yeah. Arnaldo simplified the original code in builtin-record.c to have the loop
instead of individual set_feat().

> David
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