linux-kernel - Re: [PATCH 2/2] ftrace: document basic ftracer/ftracer graph needs

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Message-ID: <8bd0f97a0906101207s3eb36ccbp7baa631a941b9b0f@mail.gmail.com>
Date:	Wed, 10 Jun 2009 15:07:11 -0400
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] ftrace: document basic ftracer/ftracer graph needs

On Wed, Jun 10, 2009 at 14:45, Steven Rostedt wrote:
> On Wed, 10 Jun 2009, Mike Frysinger wrote:
>> there should be at least tips in each HAVE_XXX as to where to look for
>> implementation details.
>
> That can be opening a can of worms.

no it isnt:
config HAVE_FUNCTION_TRACER
    bool
    help
      Please see Documentation/trace/ftrace-implementation.txt

> Really, the focus of the documentation in Kconfig is about why things must
> be selected, not how to implement the code to add that selection.

except that some of these defines come from the exact implementation details.

> If there's a HAVE_XXX in Kconfig that I want to see how to implement it, I
> go off and do 'grep -r XXX Documentation'.

i look for the source of the define because ive given up on the
Documentation actually being relevant
-mike
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