linux-kernel - Re: [PATCH] checkpatch.pl: Warn on pr_<level> or dev_<level> with KERN

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Date:	Wed, 9 Dec 2009 08:32:55 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Joe Perches <joe@...ches.com>
Cc:	Andy Whitcroft <apw@...onical.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andreas Herrmann <herrmann.der.user@...glemail.com>
Subject: Re: [PATCH] checkpatch.pl: Warn on pr_<level> or dev_<level> with
 KERN_<level>


* Joe Perches <joe@...ches.com> wrote:

> On Wed, 2009-12-09 at 07:05 +0100, Ingo Molnar wrote:
> > ( Andy: i suspect checkpatch could also grow a new warning perhaps, the
> >   '\<pr_.*(KERN_.*' pattern will i suspect pinpoint something fishy in 
> >   most cases. )
> 
> Signed-off-by: Joe Perches <joe@...ches.com>
> ---
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index bc4114f..ffd8210 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -1832,6 +1832,12 @@ sub process {
>  			}
>  		}
>  
> +# pr_<level> and dev_<level> should not use KERN_* levels
> +
> +		if ($line =~ /\b(pr_|dev_)[a-z]+.*KERN_/) {

putting \( into the pattern would further reduce the chance of false 
positives.

	Ingo
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