[PATCH v3 15/17] scripts: kernel-doc: handle nested struct function arguments

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Function arguments are different than usual ones. So, an
special logic is needed in order to handle such arguments
on nested structs.

Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
---
 scripts/kernel-doc | 38 ++++++++++++++++++++++++++------------
 1 file changed, 26 insertions(+), 12 deletions(-)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 61e52c2b604e..67e8712aa324 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1019,18 +1019,32 @@ sub dump_struct($$) {
 			$id =~ s/^\*+//;
 			foreach my $arg (split /;/, $content) {
 				next if ($arg =~ m/^\s*$/);
-				my $type = $arg;
-				my $name = $arg;
-				$type =~ s/\s\S+$//;
-				$name =~ s/.*\s//;
-				$name =~ s/[:\[].*//;
-				$name =~ s/^\*+//;
-				next if (($name =~ m/^\s*$/));
-				if ($id =~ m/^\s*$/) {
-					# anonymous struct/union
-					$newmember .= "$type $name;";
+				if ($arg =~ m/^([^\(]+\(\*?\s*)([\w\.]*)(\s*\).*)/) {
+					# pointer-to-function
+					my $type = $1;
+					my $name = $2;
+					my $extra = $3;
+					next if (!$name);
+					if ($id =~ m/^\s*$/) {
+						# anonymous struct/union
+						$newmember .= "$type$name$extra;";
+					} else {
+						$newmember .= "$type$id.$name$extra;";
+					}
 				} else {
-					$newmember .= "$type $id.$name;";
+					my $type = $arg;
+					my $name = $arg;
+					$type =~ s/\s\S+$//;
+					$name =~ s/.*\s+//;
+					$name =~ s/[:\[].*//;
+					$name =~ s/^\*+//;
+					next if (($name =~ m/^\s*$/));
+					if ($id =~ m/^\s*$/) {
+						# anonymous struct/union
+						$newmember .= "$type $name;";
+					} else {
+						$newmember .= "$type $id.$name;";
+					}
 				}
 			}
 			$members =~ s/(struct|union)([^{};]+){([^{}]*)}([^{}\;]*)\;/$newmember/;
@@ -1228,7 +1242,7 @@ sub create_parameterlist($$$$) {
 	} elsif ($arg =~ m/\(.+\)\s*\(/) {
 	    # pointer-to-function
 	    $arg =~ tr/#/,/;
-	    $arg =~ m/[^\(]+\(\*?\s*(\w*)\s*\)/;
+	    $arg =~ m/[^\(]+\(\*?\s*([\w\.]*)\s*\)/;
 	    $param = $1;
 	    $type = $arg;
 	    $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
-- 
2.13.6

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