linux-kernel - Re: [PATCH 25/26] dynamic_debug: add pr_fmt_dbg() for dynamic_pr

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Date:	Fri, 23 Sep 2011 12:31:22 +0200
From:	Bart Van Assche <bvanassche@....org>
To:	Joe Perches <joe@...ches.com>
Cc:	jim.cromie@...il.com, jbaron@...hat.com, greg@...ah.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 25/26] dynamic_debug: add pr_fmt_dbg() for dynamic_pr_debug

On Thu, Sep 22, 2011 at 10:57 PM, Joe Perches <joe@...ches.com> wrote:
> On Wed, 2011-09-21 at 15:55 -0600, jim.cromie@...il.com wrote:
>> dynamic_pr_debug can add module, function, file, and line selectively,
> []
>> diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
> []
>> +#ifndef pr_fmt_dbg
>> +#define pr_fmt_dbg(fmt) fmt
>> +#endif
> []
>> +#ifndef pr_fmt_dbg
>> +#define pr_fmt_dbg(fmt) pr_fmt(fmt)
>> +#endif
>
> This might better be placed in printk.h just
> once.
>
> I think pr_fmt_debug is better than pr_fmt_dbg
> because the function/macro is named pr_debug.
>
> Maybe add all the pr_<level> variants too because
> some like to prefix __func__ to pr_err but not pr_info
> etc.
>
> #ifndef pr_fmt_emerg
> #define pr_fmt_emerg(fmt) pr_fmt(fmt)
> #endif
> #ifndef pr_fmt_crit
> #define pr_fmt_crit(fmt) pr_fmt(fmt)
> #endif
> #ifndef pr_fmt_alert
> #define pr_fmt_alert(fmt) pr_fmt(fmt)
> #endif
> #ifndef pr_fmt_err
> #define pr_fmt_err(fmt) pr_fmt(fmt)
> #endif
> #ifndef pr_fmt_notice
> #define pr_fmt_notice(fmt) pr_fmt(fmt)
> #endif
> #ifndef pr_fmt_warn
> #define pr_fmt_warn(fmt) pr_fmt(fmt)
> #endif
> #ifndef pr_fmt_info
> #define pr_fmt_info(fmt) pr_fmt(fmt)
> #endif
> #ifndef pr_fmt_debug
> #define pr_fmt_debug(fmt) pr_fmt(fmt)
> #endif

Hi Joe,

Are you sure it makes sense to introduce all these new macros ?
Introducing pr_fmt_dbg() makes sense to me, but the usefulness of the
macros proposed above is not clear to me.

Bart.
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