--- zzzz-none-000/linux-4.1.52/include/net/inet_hashtables.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/net/inet_hashtables.h	2022-03-02 11:37:13.000000000 +0000
@@ -86,7 +86,7 @@
 	struct hlist_head	owners;
 };
 
-static inline struct net *ib_net(struct inet_bind_bucket *ib)
+static inline struct net *ib_net(struct inet_bind_bucket *ib __maybe_unused)
 {
 	return read_pnet(&ib->ib_net);
 }