[PATCH 6.1.y 0/3] Backport of "mptcp: fix full TCP keep-alive support"

["Matthieu Baerts (NGI0)" <matttbe@kernel.org>]

It looks like the patch "mptcp: fix full TCP keep-alive support" has
been backported up to v6.8 recently (thanks!), but not before due to
conflicts.

I had to adapt a bit the code not to backport new features, but the
modifications were simple, and isolated from the rest. Conflicts have
been described in each patch.

MPTCP sockopts tests have been executed, and no issues have been
reported.

Matthieu Baerts (NGI0) (1):
  mptcp: fix full TCP keep-alive support

Paolo Abeni (2):
  mptcp: avoid some duplicate code in socket option handling
  mptcp: cleanup SOL_TCP handling

 net/mptcp/protocol.h |   3 +
 net/mptcp/sockopt.c  | 144 +++++++++++++++++++++++++++++++------------
 2 files changed, 108 insertions(+), 39 deletions(-)

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2.43.0