linux-kernel - Re: [PATCH] perf_counters: start documenting HAVE_PERF

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Date:	Fri, 12 Jun 2009 13:40:52 -0400
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf_counters: start documenting HAVE_PERF_COUNTERS 
	requirements

On Fri, Jun 12, 2009 at 13:36, Ingo Molnar wrote:
> * Mike Frysinger <vapier.adi@...il.com> wrote:
>> On Fri, Jun 12, 2009 at 13:30, Ingo Molnar wrote:
>> > * Mike Frysinger <vapier@...too.org> wrote:
>> >> Help out arch porters who want to support perf counters by listing some
>> >> basic requirements.
>> >>
>> >> Signed-off-by: Mike Frysinger <vapier@...too.org>
>> >> ---
>> >> i imagine more details would be good, but this is a starting point and
>> >> better than nothing
>> >>
>> >>  init/Kconfig          |    2 ++
>> >>  tools/perf/design.txt |   15 +++++++++++++++
>> >>  2 files changed, 17 insertions(+), 0 deletions(-)
>> >>
>> >> diff --git a/init/Kconfig b/init/Kconfig
>> >> index c649657..20f85b1 100644
>> >> --- a/init/Kconfig
>> >> +++ b/init/Kconfig
>> >> @@ -936,6 +936,8 @@ config AIO
>> >>
>> >>  config HAVE_PERF_COUNTERS
>> >>       bool
>> >> +     help
>> >> +       See end of tools/perf/design.txt
>> >>
>> >>  menu "Performance Counters"
>> >
>> > Applied, thanks Mike! I have made a small change: i changed it from
>> > help text into a regular comment. We usually use help texts for
>> > interactive Kconfig options - but this is not one.
>>
>> yes, but i like the help text because when i use the kconfig
>> search option, it shows up.  otherwise doing a search for
>> HAVE_PERF_COUNTERS shows nothing useful.
>
> When i did this modification i tried that in 'make menuconfig' and
> the help didnt show up. Is it only available in certain kconfig
> methods?

hrm, you're right.  not sure what i was thinking of.  sounds like an
enhancement request though for kconfig.
-mike
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