linux-kernel - [docs-next PATCH 2/9] kernel-doc: do not warn about duplicate default section names

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Date:	Fri, 10 Jun 2016 17:16:56 +0300
From:	Jani Nikula <jani.nikula@...el.com>
To:	Jonathan Corbet <corbet@....net>
Cc:	Jani Nikula <jani.nikula@...el.com>,
	Markus Heiser <markus.heiser@...marit.de>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Grant Likely <grant.likely@...retlab.ca>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	Keith Packard <keithp@...thp.com>,
	LKML <linux-kernel@...r.kernel.org>, linux-doc@...r.kernel.org,
	Hans Verkuil <hverkuil@...all.nl>
Subject: [docs-next PATCH 2/9] kernel-doc: do not warn about duplicate default section names

Since

commit 32217761ee9db0215350dfe1ca4e66f312fb8c54
Author: Jani Nikula <jani.nikula@...el.com>
Date:   Sun May 29 09:40:44 2016 +0300

    kernel-doc: concatenate contents of colliding sections

we started getting (more) errors on duplicate section names, especially
on the default section name "Description":

include/net/mac80211.h:3174: warning: duplicate section name 'Description'

This is usually caused by a slightly unorthodox placement of parameter
descriptions, like in the above case, and kernel-doc resetting back to
the default section more than once within a kernel-doc comment.

Ignore warnings on the duplicate section name automatically assigned by
kernel-doc, and only consider explicitly user assigned duplicate section
names an issue.

Signed-off-by: Jani Nikula <jani.nikula@...el.com>
---
 scripts/kernel-doc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index ac18eb5ed776..710615f3a4ff 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -542,8 +542,11 @@ sub dump_section {
         $new_start_line = 0;
     } else {
 	if (defined($sections{$name}) && ($sections{$name} ne "")) {
-	    print STDERR "${file}:$.: warning: duplicate section name '$name'\n";
-	    ++$warnings;
+	    # Only warn on user specified duplicate section names.
+	    if ($name ne $section_default) {
+		print STDERR "${file}:$.: warning: duplicate section name '$name'\n";
+		++$warnings;
+	    }
 	    $sections{$name} .= $contents;
 	} else {
 	    $sections{$name} = $contents;
-- 
2.1.4