diff options
Diffstat (limited to 'target/linux/generic/backport-4.14/350-ipv6-make-ip6_dst_mtu_forward-inline.patch')
| -rw-r--r-- | target/linux/generic/backport-4.14/350-ipv6-make-ip6_dst_mtu_forward-inline.patch | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.14/350-ipv6-make-ip6_dst_mtu_forward-inline.patch b/target/linux/generic/backport-4.14/350-ipv6-make-ip6_dst_mtu_forward-inline.patch new file mode 100644 index 0000000000..3a0275bd37 --- /dev/null +++ b/target/linux/generic/backport-4.14/350-ipv6-make-ip6_dst_mtu_forward-inline.patch @@ -0,0 +1,80 @@ +From: Felix Fietkau <nbd@nbd.name> +Date: Fri, 16 Feb 2018 10:54:24 +0100 +Subject: [PATCH] ipv6: make ip6_dst_mtu_forward inline + +Removes a direct dependency on ipv6.ko + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + +--- a/include/net/ip6_route.h ++++ b/include/net/ip6_route.h +@@ -252,4 +252,26 @@ static inline bool rt6_duplicate_nexthop + ipv6_addr_equal(&a->rt6i_gateway, &b->rt6i_gateway) && + !lwtunnel_cmp_encap(a->dst.lwtstate, b->dst.lwtstate); + } ++ ++static inline unsigned int ip6_dst_mtu_forward(const struct dst_entry *dst) ++{ ++ unsigned int mtu; ++ struct inet6_dev *idev; ++ ++ 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; ++} ++ + #endif +--- a/include/net/ipv6.h ++++ b/include/net/ipv6.h +@@ -913,8 +913,6 @@ static inline struct sk_buff *ip6_finish + &inet6_sk(sk)->cork); + } + +-unsigned int ip6_dst_mtu_forward(const struct dst_entry *dst); +- + int ip6_dst_lookup(struct net *net, struct sock *sk, struct dst_entry **dst, + struct flowi6 *fl6); + struct dst_entry *ip6_dst_lookup_flow(const struct sock *sk, struct flowi6 *fl6, +--- a/net/ipv6/ip6_output.c ++++ b/net/ipv6/ip6_output.c +@@ -370,28 +370,6 @@ static inline int ip6_forward_finish(str + return dst_output(net, sk, skb); + } + +-unsigned int ip6_dst_mtu_forward(const struct dst_entry *dst) +-{ +- unsigned int mtu; +- struct inet6_dev *idev; +- +- 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; +-} +-EXPORT_SYMBOL_GPL(ip6_dst_mtu_forward); +- + static bool ip6_pkt_too_big(const struct sk_buff *skb, unsigned int mtu) + { + if (skb->len <= mtu) |