[IPV6]: Unify ip6_onlink() and ipip6_onlink().

Both are identical, let's create ipv6_chk_prefix() and use it
in both places.

1 files changed, 4 insertions, 0 deletions

diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index d89b0bc7ab75..bdcc863a60a4 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -71,6 +71,10 @@ extern int			ipv6_chk_addr(struct net *net,
 extern int                      ipv6_chk_home_addr(struct net *net,
                                                    struct in6_addr *addr);
 #endif
+
+extern int                      ipv6_chk_prefix(struct in6_addr *addr,
+                                                struct net_device *dev);
+
 extern struct inet6_ifaddr      *ipv6_get_ifaddr(struct net *net,
                                                  struct in6_addr *addr,
                                                  struct net_device *dev,