linux-kernel - Re: [patch 01/15] kmsg: Kernel message catalog macros.

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Date:	Wed, 30 Jul 2008 01:30:59 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Martin Schwidefsky <schwidefsky@...ibm.com>
Cc:	linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
	Michael Holzheu <holzheu@...ibm.com>
Subject: Re: [patch 01/15] kmsg: Kernel message catalog macros.

On Mon, 28 Jul 2008 19:53:56 +0200 Martin Schwidefsky <schwidefsky@...ibm.com> wrote:

> Introduce a new family of printk macros which prefixes each kmsg message
> with a component name and allows to tag the printk with a message id.
> 
> The kmsg component name is defined per source file with the KMSG_COMPONENT
> macro. The first argument of each kmsg printk is the message id. The
> message id "0" is special as it will suppress the message id prefix.
> 
> If the message id will be printed to the console / syslog at all depends
> on CONFIG_MSG_IDS. If it is "n" then a kmsg_xxx call is just another
> printk wrapper. These macros are intended to be used uniformly in the
> s390 architecture and the s390 device drivers.
> 
> Signed-off-by: Michael Holzheu <holzheu@...ibm.com>
> Signed-off-by: Martin Schwidefsky <schwidefsky@...ibm.com>
> ---
> 
>  arch/s390/Kconfig       |    9 +++
>  include/asm-s390/kmsg.h |  124 ++++++++++++++++++++++++++++++++++++++++++++++++

Numerous people want a facility like this for other-than-s390 use. 
Progress has been intermittent and appears to have stopped.  The
apparently-dead mailing list is archived here:
https://lists.linux-foundation.org/pipermail/lf_kernel_messages/.

I don't know what the future holds for that development effort, but the
requirement won't go away.  So one day someone is going to go and yank
your implementation out of arch/s390 and into generic code.

So I'd suggest that you start out that way.
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