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

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Message-Id: <20190110224957.25008-1-vbendeb@chromium.org>
Date:   Thu, 10 Jan 2019 14:49:57 -0800
From:   Vadim Bendebury <vbendeb@...omium.org>
To:     linux-kernel@...r.kernel.org
Cc:     apw@...onical.com, joe@...ches.com,
        Vadim Bendebury <vbendeb@...omium.org>
Subject: [PATCH] checkpatch: allow reporting C99 style comments

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>
---
 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) {
-- 
2.17.1