diff --git a/cocci/dns_rbtnodechain_init.spatch b/cocci/dns_rbtnodechain_init.spatch
new file mode 100644
index 0000000000..1c02a8335d
--- /dev/null
+++ b/cocci/dns_rbtnodechain_init.spatch
@@ -0,0 +1,7 @@
+@@
+expression C;
+expression M;
+@@
+
+- dns_rbtnodechain_init(C, M);
++ dns_rbtnodechain_init(C);