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From: Steven Rostedt <rostedt@goodmis.org>
To: Joe Perches <joe@perches.com>
Cc: Dan Streetman <ddstreet@ieee.org>,
	Fabian Frederick <fabf@skynet.be>,
	Andrew Morton <akpm@linux-foundation.org>,
	Paul Gortmaker <paul.gortmaker@windriver.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Borislav Petkov <borislav.petkov@amd.com>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] plist: replace pr_debug with printk in plist_test()
Date: Wed, 7 May 2014 14:19:56 -0400	[thread overview]
Message-ID: <20140507141956.4eb6ff8d@gandalf.local.home> (raw)
In-Reply-To: <1399486238.2911.20.camel@joe-AO725>

On Wed, 07 May 2014 11:10:38 -0700
Joe Perches <joe@perches.com> wrote:

> On Wed, 2014-05-07 at 10:35 -0400, Steven Rostedt wrote:
> > On Wed, 7 May 2014 10:21:28 -0400 Dan Streetman <ddstreet@ieee.org> wrote:
> 
> > > It would be even better if the note could clarify that sometimes it is
> > > ok to use printk(KERN_DEBUG
> > 
> > Exactly. I think it's rather stupid to have to do a #define DEBUG to
> > have pr_debug() print in general.
> > 
> > I see no reason to have pr_debug() be anything different than the other
> > pr_*() functions.
> 
> pr_debug is meant to be disabled and have _no_ runtime
> effect unless DEBUG is #defined.

I understand why it does it, but having pr_debug() named just like
pr_info(), pr_notice(), pr_warning(), pr_err(), pr_crit(), pr_alert(),
pr_emerg(), where all those are just printk(<LOGLEVEL>...) *except* for
pr_debug(). That's inconsistent and wrong.

pr_debug() should have been just printk(KERN_DEBUG ...) as that follows
convention. Not something that gets disabled by default. For that, we
should have given it a different name. That's the point I was trying to
make.

Yes, it's somewhat too late as pr_debug() is all over the place, but
maybe when things slow down (Ha! like that will ever happen ... "are we
done yet?"), then we could do a massive clean up and rename pr_debug()
to something not so confusing in its usage compared to the other pr_*()
prints.

-- Steve


  reply	other threads:[~2014-05-07 18:20 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-02 20:23 [PATCH] plist: include -DDEBUG if CONFIG_DEBUG_PI_LIST Dan Streetman
2014-05-02 20:41 ` Steven Rostedt
2014-05-05 14:35   ` Dan Streetman
2014-05-05 14:43     ` [PATCH] plist: replace pr_debug with printk in plist_test() Dan Streetman
2014-05-05 14:52       ` Steven Rostedt
2014-05-05 20:35       ` Andrew Morton
2014-05-05 20:52         ` Joe Perches
2014-05-06 12:30         ` Dan Streetman
2014-05-06 15:08           ` [PATCH] Documentation: expand/clarify debug documentation Dan Streetman
2014-05-06 15:44           ` [PATCH] plist: replace pr_debug with printk in plist_test() Fabian Frederick
2014-05-07 14:21             ` Dan Streetman
2014-05-07 14:35               ` Steven Rostedt
2014-05-07 18:10                 ` Joe Perches
2014-05-07 18:19                   ` Steven Rostedt [this message]
2014-05-07 18:37                     ` Joe Perches

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