[IPV6]: small cleanups

This patch contains the following cleanups:
- addrconf.c: make addrconf_dad_stop() static
- inet6_connection_sock.c should #include <net/inet6_connection_sock.h>
  for getting the prototypes of it's global functions
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/addrconf.c

@@ -1228,7 +1228,7 @@ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
 
 /* Gets referenced address, destroys ifaddr */
 
-void addrconf_dad_stop(struct inet6_ifaddr *ifp)
+static void addrconf_dad_stop(struct inet6_ifaddr *ifp)
 {
 	if (ifp->flags&IFA_F_PERMANENT) {
 		spin_lock_bh(&ifp->lock);

net/ipv6/inet6_connection_sock.c

@@ -25,6 +25,7 @@
 #include <net/inet_hashtables.h>
 #include <net/ip6_route.h>
 #include <net/sock.h>
+#include <net/inet6_connection_sock.h>
 
 int inet6_csk_bind_conflict(const struct sock *sk,
 			    const struct inet_bind_bucket *tb)