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authorXin Long <lucien.xin@gmail.com>2018-11-18 16:14:47 +0800
committerDavid S. Miller <davem@davemloft.net>2018-11-19 12:42:47 -0800
commit69fec325a64383667b8a35df5d48d6ce52fb2782 (patch)
tree4d0a66f010fc1ce454530fc99e1c0f767010f3c2 /net
parentcc3ccf26f0649089b3a34a2781977755ea36e72c (diff)
downloadlinux-stericsson-69fec325a64383667b8a35df5d48d6ce52fb2782.tar.gz
Revert "sctp: remove sctp_transport_pmtu_check"
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>
Diffstat (limited to 'net')
-rw-r--r--net/sctp/output.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 88dfa6ae1fb4..b0e74a3e77ec 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -118,6 +118,9 @@ void sctp_packet_config(struct sctp_packet *packet, __u32 vtag,
sctp_transport_route(tp, NULL, sp);
if (asoc->param_flags & SPP_PMTUD_ENABLE)
sctp_assoc_sync_pmtu(asoc);
+ } else if (!sctp_transport_pmtu_check(tp)) {
+ if (asoc->param_flags & SPP_PMTUD_ENABLE)
+ sctp_assoc_sync_pmtu(asoc);
}
if (asoc->pmtu_pending) {