linux-kernel - [PATCH] docs: make kernel-doc handle varargs properly

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Message-ID: <20160826072544.2baadd47@lwn.net>
Date:   Fri, 26 Aug 2016 07:25:44 -0600
From:   Jonathan Corbet <corbet@....net>
To:     linux-doc@...r.kernel.org
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>,
        Markus Heiser <markus.heiser@...marit.de>,
        Jani Nikula <jani.nikula@...el.com>
Subject: [PATCH] docs: make kernel-doc handle varargs properly

As far as I can tell, the handling of "..." arguments has never worked
right, so any documentation provided was ignored in favor of "variable
arguments."  This makes kernel-doc handle "@...:" as documented.  It does
*not* fix spots in kerneldoc comments that don't follow that convention,
but they are no more broken than before.

Signed-off-by: Jonathan Corbet <corbet@....net>
---
 scripts/kernel-doc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index c681e8f0ecc2..e6c52ab938fd 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -414,7 +414,7 @@ my $doc_com_body = '\s*\* ?';
 my $doc_decl = $doc_com . '(\w+)';
 # @params and a strictly limited set of supported section names
 my $doc_sect = $doc_com . 
-    '\s*(\@\w+|description|context|returns?|notes?|examples?)\s*:(.*)';
+    '\s*(\@[.\w]+|description|context|returns?|notes?|examples?)\s*:(.*)';
 my $doc_content = $doc_com_body . '(.*)';
 my $doc_block = $doc_com . 'DOC:\s*(.*)?';
 my $doc_inline_start = '^\s*/\*\*\s*$';
@@ -2340,6 +2340,7 @@ sub push_parameter($$$) {
 
 	if ($type eq "" && $param =~ /\.\.\.$/)
 	{
+	    $param = "...";
 	    if (!defined $parameterdescs{$param} || $parameterdescs{$param} eq "") {
 		$parameterdescs{$param} = "variable arguments";
 	    }
-- 
2.7.4