From: Jakub Kicinski Date: Tue, 22 Jul 2025 00:48:36 +0000 (-0700) Subject: Merge branch 'mptcp-add-tcp_maxseg-sockopt-support' X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e8c24e23c4c9f515b02dde01de9ec2c945b2fddc;p=thirdparty%2Flinux.git Merge branch 'mptcp-add-tcp_maxseg-sockopt-support' Matthieu Baerts says: ==================== mptcp: add TCP_MAXSEG sockopt support The TCP_MAXSEG socket option was not supported by MPTCP, mainly because it has never been requested before. But there are still valid use-cases, e.g. with HAProxy. - Patch 1 is a small cleanup patch in the MPTCP sockopt file. - Patch 2 expose some code from TCP, to avoid duplicating it in MPTCP. - Patch 3 adds TCP_MAXSEG sockopt support in MPTCP. - Patch 4 is not related to the others, it fixes a typo in a comment. Note that the new TCP_MAXSEG sockopt support has been validated by a new packetdrill script on the MPTCP CI: https://github.com/multipath-tcp/packetdrill/pull/161 v1: https://lore.kernel.org/20250716-net-next-mptcp-tcp_maxseg-v1-0-548d3a5666f6@kernel.org ==================== Link: https://patch.msgid.link/20250719-net-next-mptcp-tcp_maxseg-v2-0-8c910fbc5307@kernel.org Signed-off-by: Jakub Kicinski --- e8c24e23c4c9f515b02dde01de9ec2c945b2fddc