scripts: get_abi.pl: prevent duplicated file names

The same filename may exist on multiple directories within
ABI. Create separate entries at the internal database for
each of them.

Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/ef760f68f54e132c4be52f0027189b4ba31554ec.1604042072.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: mchehab

scripts/get_abi.pl

@@ -65,7 +65,10 @@ sub parse_abi {
 	my $name = $file;
 	$name =~ s,.*/,,;
 
-	my $nametag = "File $name";
+	my $fn = $file;
+	$fn =~ s,Documentation/ABI/,,;
+
+	my $nametag = "File $fn";
 	$data{$nametag}->{what} = "File $name";
 	$data{$nametag}->{type} = "File";
 	$data{$nametag}->{file} = $name;
@@ -320,16 +323,18 @@ sub output_rest {
 			my $fileref = "abi_file_".$path;
 
 			if ($type eq "File") {
-				my $bar = $w;
-				$bar =~ s/./-/g;
-
 				print ".. _$fileref:\n\n";
-				print "$w\n$bar\n\n";
 			} else {
 				print "Defined on file :ref:`$f <$fileref>`\n\n";
 			}
 		}
 
+		if ($type eq "File") {
+			my $bar = $w;
+			$bar =~ s/./-/g;
+			print "$w\n$bar\n\n";
+		}
+
 		my $desc = "";
 		$desc = $data{$what}->{description} if (defined($data{$what}->{description}));
 		$desc =~ s/\s+$/\n/;