--- zzzz-none-000/linux-3.10.107/include/net/if_inet6.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/include/net/if_inet6.h	2021-11-10 11:53:56.000000000 +0000
@@ -219,7 +219,9 @@
 	memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32));
 }
 
-static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf)
+static inline void ipv6_arcnet_mc_map(
+				const struct in6_addr *addr __maybe_unused,
+				char *buf __maybe_unused)
 {
 	buf[0] = 0x00;
 }