linux-kernel - [PATCH net 00/11] mptcp: misc fixes for v6.18-rc7

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Message-Id: <20251118-net-mptcp-misc-fixes-6-18-rc6-v1-0-806d3781c95f@kernel.org>
Date: Tue, 18 Nov 2025 08:20:18 +0100
From: "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
To: Mat Martineau <martineau@...nel.org>, Geliang Tang <geliang@...nel.org>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Simon Horman <horms@...nel.org>, Shuah Khan <shuah@...nel.org>, 
 Florian Westphal <fw@...len.de>
Cc: netdev@...r.kernel.org, mptcp@...ts.linux.dev, 
 linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 "Matthieu Baerts (NGI0)" <matttbe@...nel.org>, stable@...r.kernel.org, 
 Gang Yan <yangang@...inos.cn>
Subject: [PATCH net 00/11] mptcp: misc fixes for v6.18-rc7

Here are various unrelated fixes:

- Patch 1: Fix window space computation for fallback connections which
  can affect ACK generation. A fix for v5.11.

- Patch 2: Avoid unneeded subflow-level drops due to unsynced received
  window. A fix for v5.11.

- Patch 3: Avoid premature close for fallback connections with PREEMPT
  kernels. A fix for v5.12.

- Patch 4: Reset instead of fallback in case of data in the MPTCP
  out-of-order queue. A fix for v5.7.

- Patches 5-7: Avoid also sending "plain" TCP reset when closing with an
  MP_FASTCLOSE. A fix for v6.1.

- Patches 8-9: Longer timeout for background connections in MPTCP Join
  selftests. An additional fix for recent patches for v5.13/v6.1.

- Patches 10-11: Fix typo in a check introduce in a recent refactoring.
  A fix for v6.15.

Signed-off-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
---
Gang Yan (2):
      mptcp: fix address removal logic in mptcp_pm_nl_rm_addr
      selftests: mptcp: add a check for 'add_addr_accepted'

Matthieu Baerts (NGI0) (3):
      selftests: mptcp: join: fastclose: remove flaky marks
      selftests: mptcp: join: endpoints: longer timeout
      selftests: mptcp: join: userspace: longer timeout

Paolo Abeni (6):
      mptcp: fix ack generation for fallback msk
      mptcp: avoid unneeded subflow-level drops
      mptcp: fix premature close in case of fallback
      mptcp: do not fallback when OoO is present
      mptcp: decouple mptcp fastclose from tcp close
      mptcp: fix duplicate reset on fastclose

 net/mptcp/options.c                             | 54 +++++++++++++++++++++-
 net/mptcp/pm_kernel.c                           |  2 +-
 net/mptcp/protocol.c                            | 59 +++++++++++++++++--------
 net/mptcp/protocol.h                            |  3 +-
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 27 ++++++-----
 5 files changed, 113 insertions(+), 32 deletions(-)
---
base-commit: 8e0a754b0836d996802713bbebc87bc1cc17925c
change-id: 20251117-net-mptcp-misc-fixes-6-18-rc6-835d94cdc095

Best regards,
-- 
Matthieu Baerts (NGI0) <matttbe@...nel.org>