From 79ecb90e65f33d1941ac1f8e43eec34ec3bdbad8 Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Fri, 29 Apr 2016 17:12:20 -0700 Subject: ipv6: Generic tunnel cleanup A few generic changes to generalize tunnels in IPv6: - Export ip6_tnl_change_mtu so that it can be called by ip6_gre - Add tun_hlen to ip6_tnl structure. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller --- net/ipv6/ip6_tunnel.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'net/ipv6') diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index b1f31d2..ade55af 100644 --- 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: -- cgit v1.1