linux-kernel - Re: kgdb: core

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Message-Id: <20080421214636.617970c6.akpm@linux-foundation.org>
Date:	Mon, 21 Apr 2008 21:46:36 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	jason.wessel@...driver.com, linux-kernel@...r.kernel.org
Subject: Re: kgdb: core

> On Mon, 21 Apr 2008 16:12:52 +0200 Ingo Molnar <mingo@...e.hu> wrote:
> > So please
> > 
> > a) make this a kerneldoc comment and
> > 
> > b) remove the kerneldoc at the definition site(s).
> > 
> > (alternative: teach the kerneldoc system to go fishing in the various 
> > arch directories to find the appropriate documentation, but I don't 
> > know enough about kerneldoc to be able say anything about that).
> 
> well there's lkml feedback ping-pong effect here. It was pointed out in 
> earlier kgdb review that it's an "error" to put kerneldoc into header 
> files.

It is, normally.  Nobody thought about this case.

> I pointed out that it makes no sense to do otherwise but removed 
> the kerneldoc annotation to resolve the "objection".

Duplicating the same stuff in multiple places is the larger sin.  It sounds
like the best compromise would be to kernel-doc the interface in the .h
file and remove the duplicated comments from .c.

Or perhaps we kernel-doc the interface in the x86 .c files and leave it at
that - people should go there to find the docs.  Problem is, this will
presumably generate bad results if one builds the formal kerneldoc output
for a different architecture.  The kerneldoc system could of course fix
this somehow, but I don't know what shape it would take nor how much work
it would be.
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