diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl
index 62320f9..8b2da05 100755
--- a/scripts/headers_check.pl
+++ b/scripts/headers_check.pl
@@ -69,6 +69,10 @@ sub check_declarations
 	if ($line =~ m/^void seqbuf_dump\(void\);/) {
 		return;
 	}
+	# drm headers are being C++ friendly
+	if ($line =~ m/^extern "C"/) {
+		return;
+	}
 	if ($line =~ m/^(\s*extern|unsigned|char|short|int|long|void)\b/) {
 		printf STDERR "$filename:$lineno: " .
 			      "userspace cannot reference function or " .