Hello - I have pushed an update to the MPTCP kernel architecture proposal: https://review.gerrithub.io/q/project:multipath-tcp%252Fmptcp_net-next+st... https://git.kernel.org/pub/scm/linux/kernel/git/martineau/linux.git/log/?... The commit ID for RFCv10 is 6cfe3336cf01a64e45d66124f3ff768cab0df1bd Changes: 1) Split the mptcp.h header file 2) Refined handling CONFIG_MPTCP vs non-CONFIG_MPTCP builds 3) Refactored option writing code to minimize changes in tcp_output.c and avoid using magic numbers 4) Added ULP clone hook and modified MPTCP subflow cloning to use it 5) Florian's namespacing fix and conn_finished fix (rx dst update crash) 6) Fix locking in mptcp_recvmsg() Regards, -- Mat Martineau Intel