linux-kernel - Re: [PATCH] staging:comedi: Fixed coding convention issues.

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Date:	Thu, 17 Jun 2010 15:51:08 -0700
From:	Greg KH <greg@...ah.com>
To:	Joe Perches <joe@...ches.com>
Cc:	Mark Rankilor <reodge@...il.com>, devel@...verdev.osuosl.org,
	Henri Häkkinen <henuxd@...il.com>,
	gregkh@...e.de, andrea.gelmini@...ma.net,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging:comedi: Fixed coding convention issues.

On Sat, Jun 12, 2010 at 10:30:50PM -0700, Joe Perches wrote:
> On Sat, 2010-06-12 at 22:07 -0700, Joe Perches wrote:
> > 2: Create some comedi logging functions or macros like:
> >    	comedi_<level>(fmt, arg...) (ie: comedi_info, comedi_err, etc)
> >    where "comedi:" is always prefixed and an
> >    optional #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> >    could be used.
> 
> Maybe this is a start:
> 
> Signed-off-by: Joe Perches <joe@...ches.com>
> ---
>  drivers/staging/comedi/comedidev.h |   54 ++++++++++++++++++++++++++++++++++--
>  1 files changed, 51 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
> index 4eb2b77..6c2bdde 100644
> --- a/drivers/staging/comedi/comedidev.h
> +++ b/drivers/staging/comedi/comedidev.h
> @@ -43,11 +43,59 @@
>  
>  #include "comedi.h"
>  
> -#define DPRINTK(format, args...)	do {		\
> -	if (comedi_debug)				\
> -		printk(KERN_DEBUG "comedi: " format , ## args);	\
> +#define comedi_printk(level, fmt, args...)			\
> +	printk(level "comedi: " pr_fmt(fmt), ##args)
> +
> +#define DPRINTK(format, args...)				\
> +do {								\
> +	if (comedi_debug)					\
> +		comedi_printk(KERN_DEBUG, fmt, ##args);		\
>  } while (0)
>  
> +#define comedi_emerg(fmt, ...)				\
> +	comedi_printk(KERN_EMERG, fmt, ##__VA_ARGS__)

I would prefer the conversion of everything over to the dev_printk()
versions instead of creating a new macro for every individual subsystem.
That way you get the advantage of logging everything in the common
format and the dynamic debug functionality as well.

thanks,

greg k-h
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