ipv6: Generic tunnel cleanup

[cascardo/linux.git] / net / ipv6 / ip6_tunnel.c

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index b1f31d2..ade55af 100644 (file)
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1540,8 +1540,7 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
  *   %-EINVAL if mtu too small
  **/
 
-static int
-ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
+int ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
 {
        struct ip6_tnl *tnl = netdev_priv(dev);
 
@@ -1557,6 +1556,7 @@ ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
        dev->mtu = new_mtu;
        return 0;
 }
+EXPORT_SYMBOL(ip6_tnl_change_mtu);
 
 int ip6_tnl_get_iflink(const struct net_device *dev)
 {
@@ -1632,6 +1632,9 @@ ip6_tnl_dev_init_gen(struct net_device *dev)
        if (ret)
                goto destroy_dst;
 
+       t->hlen = 0;
+       t->tun_hlen = 0;
+
        return 0;
 
 destroy_dst: