linux-kernel - Re: [RFC/PATCH] Documentation of kernel messages

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Date:	Mon, 18 Jun 2007 15:11:57 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Gerrit Huizenga <gh@...ibm.com>
Cc:	holzheu@...ux.vnet.ibm.com, Jan Kara <jack@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, randy.dunlap@...cle.com,
	gregkh@...e.de, mtk-manpages@....net, schwidefsky@...ibm.com,
	heiko.carstens@...ibm.com,
	"lf_kernel_messages@...ux-foundation.org" 
	<lf_kernel_messages@...ux-foundation.org>
Subject: Re: [RFC/PATCH] Documentation of kernel messages

On Fri, Jun 15, 2007 at 11:42:15AM -0700, Gerrit Huizenga wrote:
> 
> Andrew mentioned a mechanism for adding a subsystem tag or other tag
> which helps disambiguate the message, either in the message file or in
> the end user documentation (e.g. the Message Pedia/mPedia that the Japanese
> have already created with ~350 messages, and a total of ~700 targetted
> by the end of the year).
> 
> That tag could be appended to the beginning of the printk, to the end of
> the printk, or even in a formatted comment at the end of the printk that
> the tool could extract.

The best way to maintain such a subsystem tag most be supported by
kbuild. So say we have the subsystem "scsi" then we can set this subsystem
tag in drivers/scsi/Makefile and let drivers/scsi/arm/Makefile inherit
this vaule doing nothing.

Addign the subsystem tag to the printk could than be done using the
C preprocessor and we are all fine.

If we go by the kernel-doc way to document kernel messages (the few that
actually needs additional explanation) then we need to teach kernel-doc
to collect the same subsystem tag but that should be doable.

	Sam
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