linux-kernel - [PATCH] kernel-doc: allow unnamed structs/unions

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Message-Id: <20061219231019.6df16e1c.randy.dunlap@oracle.com>
Date:	Tue, 19 Dec 2006 23:10:19 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	akpm <akpm@...l.org>, tali <tali@...ingilde.org>,
	davem@...emloft.net
Subject: [PATCH] kernel-doc: allow unnamed structs/unions

From: Randy Dunlap <randy.dunlap@...cle.com>

Make kernel-doc support unnamed (anonymous) structs and unions.
There is one (union) in include/linux/skbuff.h (inside struct sk_buff)
that is currently generating a kernel-doc warning, so this
fixes that warning.

Signed-off-by: Randy Dunlap <randy.dunlap@...cle.com>
---
 scripts/kernel-doc |   17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

--- linux-2.6.20-rc1-git7.orig/scripts/kernel-doc
+++ linux-2.6.20-rc1-git7/scripts/kernel-doc
@@ -1469,6 +1469,7 @@ sub push_parameter($$$) {
 	my $param = shift;
 	my $type = shift;
 	my $file = shift;
+	my $anon = 0;
 
 	my $param_name = $param;
 	$param_name =~ s/\[.*//;
@@ -1484,9 +1485,20 @@ sub push_parameter($$$) {
 	    $param="void";
 	    $parameterdescs{void} = "no arguments";
 	}
+	elsif ($type eq "" && ($param eq "struct" or $param eq "union"))
+	# handle unnamed (anonymous) union or struct:
+	{
+		$type = $param;
+		$param = "{unnamed_" . $param. "}";
+		$parameterdescs{$param} = "anonymous\n";
+		$anon = 1;
+	}
+
 	# warn if parameter has no description
-	# (but ignore ones starting with # as these are no parameters
-	# but inline preprocessor statements
+	# (but ignore ones starting with # as these are not parameters
+	# but inline preprocessor statements);
+	# also ignore unnamed structs/unions;
+	if (!$anon) {
 	if (!defined $parameterdescs{$param_name} && $param_name !~ /^#/) {
 
 	    $parameterdescs{$param_name} = $undescribed;
@@ -1500,6 +1512,7 @@ sub push_parameter($$$) {
 	                 " No description found for parameter '$param'\n";
 	    ++$warnings;
         }
+        }
 
 	push @parameterlist, $param;
 	$parametertypes{$param} = $type;


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