linux-kernel - Re: [PATCH] checkpatch: allow reporting C99 style comments

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Message-ID: <2413156a3cd115daa6bee09c4158e0f09efdf1a7.camel@perches.com>
Date:   Thu, 10 Jan 2019 15:16:19 -0800
From:   Joe Perches <joe@...ches.com>
To:     Vadim Bendebury <vbendeb@...omium.org>,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     apw@...onical.com
Subject: Re: [PATCH] checkpatch: allow reporting C99 style comments

On Thu, 2019-01-10 at 14:49 -0800, Vadim Bendebury wrote:
> Presently C99 style comments are removed unconditionally before actual
> patch validity check happens. This is a problem for some third party
> projects which use checkpatch.pl but do not allow C99 style comments.
> 
> This patch adds yet another variable, named C99_COMMENT_TOLERANCE. If
> it is included in the --ignore command line or config file options
> list, C99 comments in the patch are reported as errors.
> 
> Tested by processing a patch with a C99 style comment, it passes the
> check just fine unless '--ignore C99_COMMENT_TOLERANCE' is present in
> .checkpatch.conf.
> 
> Signed-off-by: Vadim Bendebury <vbendeb@...omium.org>

Seems sensible enough.

> ---
>  scripts/checkpatch.pl | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index b737ca9d7204..8a1aaeb8fa1b 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -61,7 +61,7 @@ my $codespellfile = "/usr/share/codespell/dictionary.txt";
>  my $conststructsfile = "$D/const_structs.checkpatch";
>  my $typedefsfile = "";
>  my $color = "auto";
> -my $allow_c99_comments = 1;
> +my $allow_c99_comments = 1; # Can be overridden by --ignore C99_COMMENT_TOLERANCE
>  
>  sub help {
>  	my ($exitcode) = @_;
> @@ -1011,6 +1011,7 @@ if ($git) {
>  }
>  
>  my $vname;
> +$allow_c99_comments = !defined $ignore_type{"C99_COMMENT_TOLERANCE"};
>  for my $filename (@ARGV) {
>  	my $FILE;
>  	if ($git) {