linux-kernel - Re: [PATCH 1/9] drivers/gpu/drm/drm

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Date:	Tue, 09 Nov 2010 18:31:03 -0800
From:	Joe Perches <joe@...ches.com>
To:	Kristian Høgsberg <krh@...planet.net>
Cc:	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 1/9] drivers/gpu/drm/drm_stub.c: Use printf extension
 %pV

On Tue, 2010-11-09 at 21:16 -0500, Kristian Høgsberg wrote:
> On Tue, Nov 9, 2010 at 7:35 PM, Joe Perches <joe@...ches.com> wrote:
> > Using %pV reduces the number of printk calls and
> > eliminates any possible message interleaving from
> > other printk calls.

> Wouldn't it be easier and more convenient to just make the %pV format
> specifier just expect a format string and the va_arg list?  Like this
>   printk(KERN_DEBUG "%pV", format, &args);
> I mean, the %pV is kernel specific and we can just change how it works.

No it wouldn't.

gcc would now warn about a mismatch between format and arguments.



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