--- zzzz-none-000/linux-4.1.52/include/linux/mroute.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/linux/mroute.h	2022-03-02 11:37:13.000000000 +0000
@@ -101,7 +101,14 @@
 #endif		
 
 struct rtmsg;
+#if defined(CONFIG_BCM_KF_MROUTE)
+int ipmr_get_route(struct net *net, struct sk_buff *skb,
+		   __be32 saddr, __be32 daddr,
+		   struct rtmsg *rtm, int nowait, int ifIndex);
+#else
 extern int ipmr_get_route(struct net *net, struct sk_buff *skb,
 			  __be32 saddr, __be32 daddr,
 			  struct rtmsg *rtm, int nowait);
 #endif
+
+#endif
\ No newline at end of file