diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index cdd19c5..4d4cb46 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -131,7 +131,7 @@
 
 static int addrconf_ifdown(struct net_device *dev, int how);
 
-static void addrconf_dad_start(struct inet6_ifaddr *ifp, int flags);
+static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags);
 static void addrconf_dad_timer(unsigned long data);
 static void addrconf_dad_completed(struct inet6_ifaddr *ifp);
 static void addrconf_rs_timer(unsigned long data);
@@ -492,7 +492,7 @@
 
 static struct inet6_ifaddr *
 ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
-	      int scope, unsigned flags)
+	      int scope, u32 flags)
 {
 	struct inet6_ifaddr *ifa = NULL;
 	struct rt6_info *rt;
@@ -1320,7 +1320,7 @@
 
 static void
 addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev,
-		      unsigned long expires, unsigned flags)
+		      unsigned long expires, u32 flags)
 {
 	struct in6_rtmsg rtmsg;
 
@@ -2229,7 +2229,7 @@
 /*
  *	Duplicate Address Detection
  */
-static void addrconf_dad_start(struct inet6_ifaddr *ifp, int flags)
+static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
 {
 	struct inet6_dev *idev = ifp->idev;
 	struct net_device *dev = idev->dev;
@@ -2671,7 +2671,7 @@
 }
 
 static int inet6_fill_ifmcaddr(struct sk_buff *skb, struct ifmcaddr6 *ifmca,
-				u32 pid, u32 seq, int event, unsigned flags)
+				u32 pid, u32 seq, int event, u16 flags)
 {
 	struct ifaddrmsg *ifm;
 	struct nlmsghdr  *nlh;