linux-kernel - Re: [PATCH] drivers/hwmon: Use pr_fmt and pr

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Date:	Wed, 20 Oct 2010 16:19:46 -0300
From:	Davidlohr Bueso <dave@....org>
To:	Jean Delvare <khali@...ux-fr.org>
Cc:	Joe Perches <joe@...ches.com>,
	Guenter Roeck <guenter.roeck@...csson.com>,
	Hans de Goede <j.w.r.degoede@....nl>,
	Alistair John Strachan <alistair@...zero.co.uk>,
	Henrik Rydberg <rydberg@...omail.se>,
	"Mark M. Hoffman" <mhoffman@...htlink.com>,
	Luca Tettamanti <kronos.it@...il.com>,
	Fenghua Yu <fenghua.yu@...el.com>,
	Juerg Haefliger <juergh@...il.com>,
	Eric Piel <eric.piel@...mplin-utc.net>,
	Jim Cromie <jim.cromie@...il.com>,
	Roger Lucas <vt8231@...denengine.co.uk>,
	lm-sensors@...sensors.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drivers/hwmon: Use pr_fmt and pr_<level>

On Wed, 2010-10-20 at 09:42 +0200, Jean Delvare wrote:
> Hi Joe,
> 
> On Tue, 19 Oct 2010 16:13:40 -0700, Joe Perches wrote:
> > Convert printks to pr_<level>
> > Coalesce long formats
> > Removed prefixes from formats
> > Added #define pr_fmt KBUILD_MODNAME ": " fmt
> > Standardized abitguru messages for reporting and finding MAINTAINER
> > (...)
> > diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c
> > index 03694cc..8f07a9d 100644
> > --- a/drivers/hwmon/abituguru.c
> > +++ b/drivers/hwmon/abituguru.c
> > @@ -20,6 +20,9 @@
> >      the custom Abit uGuru chip found on Abit uGuru motherboards. Note: because
> >      of lack of specs the CPU/RAM voltage & frequency control is not supported!
> >  */
> > +
> > +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> > +
> >  #include <linux/module.h>
> 
> It looks odd that every driver would have to set this. Shouldn't this
> be the default set in <linux/kernel.h>? Something like:
> 
> #ifndef pr_fmt
> #ifdef KBUILD_MODNAME
> #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> #else
> #define pr_fmt(fmt) fmt
> #endif /* KBUILD_MODNAME */
> #endif
> 

Well we do have this:
#ifndef pr_fmt
#define pr_fmt(fmt) fmt
#endif

Cheers,
Davidlohr

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