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

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Date:	Fri, 12 Jun 2009 19:36:47 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Mike Frysinger <vapier.adi@...il.com>
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


* 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?

	Ingo
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