diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 6c18a14386a4..26146cbaa504 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1624,7 +1624,6 @@ sub dump_function($$) {
 
     $prototype =~ s/^static +//;
     $prototype =~ s/^extern +//;
-    $prototype =~ s/^fastcall +//;
     $prototype =~ s/^asmlinkage +//;
     $prototype =~ s/^inline +//;
     $prototype =~ s/^__inline__ +//;