linux-kernel - Re: Possible false positive from checkpatch.pl

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Date:	Mon, 12 Jul 2010 12:49:07 -0700
From:	Joe Perches <joe@...ches.com>
To:	Larry Finger <Larry.Finger@...inger.net>
Cc:	Andy Whitcroft <apw@...onical.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Possible false positive from checkpatch.pl

On Mon, 2010-07-12 at 14:37 -0500, Larry Finger wrote:
> On 07/12/2010 02:03 PM, Joe Perches wrote:
> > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> > index bd88f11..7e8a3f4 100755
> > --- a/scripts/checkpatch.pl
> > +++ b/scripts/checkpatch.pl
> > @@ -2394,8 +2394,10 @@ sub process {
> >   			}x;
> >   			#print "REST<$rest>  dstat<$dstat>\n";
> >   			if ($rest ne '') {
> > -				if ($rest !~ /while\s*\(/&&
> > -				    $dstat !~ /$exceptions/)
> > +				if ($rest eq ",") {
> > +					ERROR("Macros should not end with a trailing comma\n" . "$here\n$ctx\n");
> > +				} elsif ($rest !~ /while\s*\(/&&
> > +					 $dstat !~ /$exceptions/)
> >   				{
> >   					ERROR("Macros with multiple statements should be enclosed in a do - while loop\n" . "$here\n$ctx\n");
> >   			}
> 
> That looks good. At least it makes clear what is wrong.
> Should it be an error, or just a warning?

I don't much care.

If Andy wants to do anything, let him decide.

Perhaps the new test should be
	if ($rest =~ /\s*,\s*$/)

cheers, Joe

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