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

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@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 15 insertions, 2 deletions

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index df3b272f7ce6..f50a70f550b3 100755
--- a/scripts/kernel-doc
+++ b/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;