linux-kernel - Re: [PATCH V3] checkpatch: check for whitespace before semicolon at EOL

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Message-ID: <20120528144259.GA5878@dm>
Date:	Mon, 28 May 2012 15:42:59 +0100
From:	Andy Whitcroft <apw@...onical.com>
To:	Eric Nelson <eric.nelson@...ndarydevices.com>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-kbuild@...r.kernel.org, joe@...ches.com
Subject: Re: [PATCH V3] checkpatch: check for whitespace before semicolon at
 EOL

On Sun, May 27, 2012 at 05:00:46PM -0700, Eric Nelson wrote:
> Requires --strict option during invocation:
> 	~/linux$ scripts/checkpatch --strict foo.patch
> 
> This tests for a bad habits of mine like this:
> 
> 	return 0 ;
> 
> Note that it does allow a special case of a bare semicolon
> for empty loops:
> 
> 	while (foo())
> 		;
> 
> Signed-off-by: Eric Nelson <eric.nelson@...ndarydevices.com>
> ---
>  scripts/checkpatch.pl |    7 +++++++
>  1 files changed, 7 insertions(+), 0 deletions(-)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index faea0ec..2262e1f 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2448,6 +2448,13 @@ sub process {
>  				     "space prohibited between function name and open parenthesis '('\n" . $herecurr);
>  			}
>  		}
> +
> +# check for whitespace before a non-naked semicolon
> +		if ($line =~ /^\+.*\S\s+;/) {
> +			CHK("SPACING",
> +			    "space prohibited before semicolon\n" . $herecurr);
> +		}
> +

Would this not also falsly trigger on 'for (foo = 10; foo; foo--) {' ?

>  # Check operator spacing.
>  		if (!($line=~/\#\s*include/)) {
>  			my $ops = qr{

-apw
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