diff options
author | Alex Shi <alex.shi@linaro.org> | 2016-12-12 22:17:50 +0800 |
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committer | Alex Shi <alex.shi@linaro.org> | 2016-12-12 22:17:50 +0800 |
commit | d2a15c13d6db9745a496a89025f665445b586ff2 (patch) | |
tree | 00cd710425a9354bc46fe42bd4320e121d92647a /net/ipv6/ip6_tunnel.c | |
parent | 66e16b528a0b76260617552fce9c44fecb8b51fe (diff) | |
parent | a057484ab40ff81f22a94bb62c035c78b5abd940 (diff) |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-rtlsk-v4.4-16.12-rt
Diffstat (limited to 'net/ipv6/ip6_tunnel.c')
-rw-r--r-- | net/ipv6/ip6_tunnel.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index e8878886eba4..2994d1f1a661 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1043,6 +1043,7 @@ static int ip6_tnl_xmit2(struct sk_buff *skb, struct ipv6_tel_txoption opt; struct dst_entry *dst = NULL, *ndst = NULL; struct net_device *tdev; + bool use_cache = false; int mtu; unsigned int max_headroom = sizeof(struct ipv6hdr); u8 proto; @@ -1070,7 +1071,15 @@ static int ip6_tnl_xmit2(struct sk_buff *skb, memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr)); neigh_release(neigh); - } else if (!fl6->flowi6_mark) + } else if (!(t->parms.flags & + (IP6_TNL_F_USE_ORIG_TCLASS | IP6_TNL_F_USE_ORIG_FWMARK))) { + /* enable the cache only only if the routing decision does + * not depend on the current inner header value + */ + use_cache = true; + } + + if (use_cache) dst = ip6_tnl_dst_get(t); if (!ip6_tnl_xmit_ctl(t, &fl6->saddr, &fl6->daddr)) @@ -1134,7 +1143,7 @@ static int ip6_tnl_xmit2(struct sk_buff *skb, skb = new_skb; } - if (!fl6->flowi6_mark && ndst) + if (use_cache && ndst) ip6_tnl_dst_set(t, ndst); skb_dst_set(skb, dst); |