Re: [RFC/PATCH] Documentation of kernel messages

From: Sam Ravnborg
Date: Mon Jun 18 2007 - 09:11:16 EST


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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