The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable@xxxxxxxxxxxxxxx>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x e32d262c89e2b22cb0640223f953b548617ed8a6 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable@xxxxxxxxxxxxxxx>' --in-reply-to '2024101414-scouting-grower-43fe@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: e32d262c89e2 ("mptcp: handle consistently DSS corruption") 104125b82e5c ("mptcp: add mib for infinite map sending") 1e39e5a32ad7 ("mptcp: infinite mapping sending") 0eb4e7ee1655 ("mptcp: add tracepoint in mptcp_sendmsg_frag") f284c0c77321 ("mptcp: implement fastclose xmit path") f70cad1085d1 ("mptcp: stop relying on tcp_tx_skb_cache") efe686ffce01 ("mptcp: ensure tx skbs always have the MPTCP ext") 1094c6fe7280 ("mptcp: fix possible divide by zero") 5580d41b758a ("mptcp: MP_FAIL suboption receiving") c25aeb4e0953 ("mptcp: MP_FAIL suboption sending") d7b269083786 ("mptcp: shrink mptcp_out_options struct") 1bff1e43a30e ("mptcp: optimize out option generation") 1f5e9e2f5fd5 ("mptcp: move drop_other_suboptions check under pm lock") df377be38725 ("mptcp: add deny_join_id0 in mptcp_options_received") bab6b88e0560 ("mptcp: add allow_join_id0 in mptcp_out_options") 8ce568ed06ce ("mptcp: drop tx skb cache") 4e14867d5e91 ("mptcp: tune re-injections for csum enabled mode") 208e8f66926c ("mptcp: receive checksum for MP_CAPABLE with data") 0625118115cf ("mptcp: add csum_reqd in mptcp_options_received") c5b39e26d003 ("mptcp: send out checksum for DSS") thanks, greg k-h ------------------ original commit in Linus's tree ------------------