diff options
| author | Felix Fietkau <nbd@nbd.name> | 2018-02-26 10:15:10 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-04-21 19:20:04 +0200 |
| commit | 07cb9623ee7d15cc9968969ac247edae6972fb8f (patch) | |
| tree | 52aeeb56e1aee54ce660072c09f12821acb9df25 /include/net/ip6_route.h | |
| parent | 047b300e6e72fc8d1a9259c2ed567e71a736683d (diff) | |
ipv6: make ip6_dst_mtu_forward inline
Just like ip_dst_mtu_maybe_forward(), to avoid a dependency with ipv6.ko.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/ip6_route.h')
| -rw-r--r-- | include/net/ip6_route.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index d5fb1e4ae7ac..376928c26d2d 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -279,6 +279,27 @@ static inline bool rt6_duplicate_nexthop(struct fib6_info *a, struct fib6_info * !lwtunnel_cmp_encap(a->fib6_nh.nh_lwtstate, b->fib6_nh.nh_lwtstate); } +static inline unsigned int ip6_dst_mtu_forward(const struct dst_entry *dst) +{ + struct inet6_dev *idev; + unsigned int mtu; + + if (dst_metric_locked(dst, RTAX_MTU)) { + mtu = dst_metric_raw(dst, RTAX_MTU); + if (mtu) + return mtu; + } + + mtu = IPV6_MIN_MTU; + rcu_read_lock(); + idev = __in6_dev_get(dst->dev); + if (idev) + mtu = idev->cnf.mtu6; + rcu_read_unlock(); + + return mtu; +} + struct neighbour *ip6_neigh_lookup(const struct in6_addr *gw, struct net_device *dev, struct sk_buff *skb, const void *daddr); |