diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 86505bf..e70278e 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -81,9 +81,9 @@
 		       const struct in6_addr *daddr, unsigned int srcprefs,
 		       struct in6_addr *saddr);
 int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr,
-		      unsigned char banned_flags);
+		      u32 banned_flags);
 int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
-		    unsigned char banned_flags);
+		    u32 banned_flags);
 int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2);
 void addrconf_join_solict(struct net_device *dev, const struct in6_addr *addr);
 void addrconf_leave_solict(struct inet6_dev *idev, const struct in6_addr *addr);