diff options
| author | Xin Long <lucien.xin@gmail.com> | 2018-11-18 16:14:47 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-23 08:17:04 +0100 |
| commit | 004973021da1e3fb3bb46a246dbec94a61f23cdf (patch) | |
| tree | fb269da07999aea4af36a849de3cf620a5ed4b6c /include/net | |
| parent | 5fa9f2bdf848fc1ea88575f324fcac78c665677a (diff) | |
Revert "sctp: remove sctp_transport_pmtu_check"
[ Upstream commit 69fec325a64383667b8a35df5d48d6ce52fb2782 ]
This reverts commit 22d7be267eaa8114dcc28d66c1c347f667d7878a.
The dst's mtu in transport can be updated by a non sctp place like
in xfrm where the MTU information didn't get synced between asoc,
transport and dst, so it is still needed to do the pmtu check
in sctp_packet_config.
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/sctp/sctp.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index 8c2caa370e0f..ab9242e51d9e 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -608,4 +608,16 @@ static inline __u32 sctp_dst_mtu(const struct dst_entry *dst) SCTP_DEFAULT_MINSEGMENT)); } +static inline bool sctp_transport_pmtu_check(struct sctp_transport *t) +{ + __u32 pmtu = sctp_dst_mtu(t->dst); + + if (t->pathmtu == pmtu) + return true; + + t->pathmtu = pmtu; + + return false; +} + #endif /* __net_sctp_h__ */ |