linux-kernel - Re: [PATCH] media: em28xx replace printk in dprintk macros

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Date:	Tue, 24 Feb 2015 19:45:50 -0800
From:	Joe Perches <joe@...ches.com>
To:	Shuah Khan <shuahkh@....samsung.com>
Cc:	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: em28xx replace printk in dprintk macros

On Tue, 2015-02-24 at 16:41 -0700, Shuah Khan wrote:
> On 02/24/2015 03:03 PM, Mauro Carvalho Chehab wrote:
> > Em Tue, 24 Feb 2015 11:53:47 -0700 Shuah Khan <shuahkh@....samsung.com> escreveu:
> >> Replace printk macro in dprintk macros in em28xx audio, dvb,
> >> and input files with pr_* equivalent routines.
[]
> >> diff --git a/drivers/media/usb/em28xx/em28xx-input.c b/drivers/media/usb/em28xx/em28xx-input.c
[]
> >>  #define dprintk(fmt, arg...) \
> >>  	if (ir_debug) { \
> >> -		printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \
> >> +		pr_debug("%s/ir: " fmt, ir->name, ## arg); \
> > 
> > NACK.
> > 
> > This is the worse of two words, as it would require both to enable
> > each debug line via dynamic printk setting and to enable ir_debug.
> Ah. I missed that. Sorry for the noise.

It's
At some point, I'm going to propose a standard mechanism
similar to netif_<level> that does bitmap matching for
dynamic_debug and generic debugging.



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