--- zzzz-none-000/linux-4.19.183/net/ipv6/af_inet6.c	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/net/ipv6/af_inet6.c	2023-06-28 08:54:21.000000000 +0000
@@ -107,8 +107,12 @@
 	return (struct ipv6_pinfo *)(((u8 *)sk) + offset);
 }
 
+#if !defined(CONFIG_BCM_KF_MPTCP) || !defined(CONFIG_BCM_MPTCP)
 static int inet6_create(struct net *net, struct socket *sock, int protocol,
 			int kern)
+#else
+int inet6_create(struct net *net, struct socket *sock, int protocol, int kern)
+#endif
 {
 	struct inet_sock *inet;
 	struct ipv6_pinfo *np;
@@ -1071,6 +1075,7 @@
 	if (err)
 		goto sysctl_fail;
 #endif
+	ip6_input_init();
 
 	/* ensure that ipv6 stubs are visible only after ipv6 is ready */
 	wmb();