--- zzzz-none-000/linux-2.6.39.4/include/net/if_inet6.h	2011-08-03 19:43:28.000000000 +0000
+++ puma6-atom-6490-729/linux-2.6.39.4/include/net/if_inet6.h	2021-11-10 13:38:18.000000000 +0000
@@ -264,7 +264,7 @@
 	}
 }
 
-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 __attribute__((unused)), char *buf)
 {
 	buf[0] = 0x00;
 }