linux-kernel - Re: [PATCH] omap2/omapfb: make DBG() more resistant in if-else constructions

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Message-ID: <1305029285.2045.38.camel@deskari>
Date:	Tue, 10 May 2011 15:08:05 +0300
From:	Tomi Valkeinen <tomi.valkeinen@...com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Niels de Vos <ndevos@...hat.com>, linux-omap@...r.kernel.org,
	linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] omap2/omapfb: make DBG() more resistant in if-else
 constructions

On Tue, 2011-05-10 at 11:42 +0200, Geert Uytterhoeven wrote:

> What about using the standard pr_debug()/dev_dbg() instead?
> With dynamic debug, it can be enabled at run time.
> As a bonus, you get printf()-style format checking if debugging is disabled.

Yes, dev_dbg & co. would be better.

However, one thing I dislike about them is the extra stuff they print.
For example, for omapfb and omapdss dev_dbg will print:

omapfb omapfb: foo
omapdss_dss omapdss_dss: foo

I originally added the debug macros to omapdss to be able to
automatically print the DSS module name, as at that point there was only
one big omapdss device. And I guess I just followed with similar macro
in omapfb also. But I believe both omapdss and omapfb should be changed
to dev_* prints sometime soon.

 Tomi

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