Here are various unrelated fixes:

- Patch 1: avoid bufferbloat in simult_flows selftest which can cause
  instabilities. A fix for v5.10.

- Patches 2-3: reduce RM_ADDR lost by not sending it over the same
  subflow as the one being removed, if possible. A fix for v5.13.

- Patches 4-5: avoid a WARN when using signal + subflow endpoints with a
  subflow limit of 0, and removing such endpoints during an active
  connection. A fix for v5.17.

Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
---
Matthieu Baerts (NGI0) (4):
      mptcp: pm: avoid sending RM_ADDR over same subflow
      selftests: mptcp: join: check RM_ADDR not sent over same subflow
      mptcp: pm: in-kernel: always mark signal+subflow endp as used
      selftests: mptcp: join: check removing signal+subflow endp

Paolo Abeni (1):
      selftests: mptcp: more stable simult_flows tests

 net/mptcp/pm.c                                    | 55 ++++++++++++++++++-----
 net/mptcp/pm_kernel.c                             |  9 ++++
 tools/testing/selftests/net/mptcp/mptcp_join.sh   | 49 ++++++++++++++++++++
 tools/testing/selftests/net/mptcp/simult_flows.sh | 11 +++--
 4 files changed, 108 insertions(+), 16 deletions(-)
---
base-commit: 9439a661c2e80485406ce2c90b107ca17858382d
change-id: 20260302-net-mptcp-misc-fixes-7-0-rc2-57dfaba318c8

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

On Tue, 03 Mar 2026 11:56:01 +0100 Matthieu Baerts (NGI0) wrote:
> Subject: [PATCH net 0/5] mptcp: misc fixes for v7.0-rc2

rc3 ;)

Hello:

This series was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Tue, 03 Mar 2026 11:56:01 +0100 you wrote:
> Here are various unrelated fixes:
> 
> - Patch 1: avoid bufferbloat in simult_flows selftest which can cause
>   instabilities. A fix for v5.10.
> 
> - Patches 2-3: reduce RM_ADDR lost by not sending it over the same
>   subflow as the one being removed, if possible. A fix for v5.13.
> 
> [...]

Here is the summary with links:
  - [net,1/5] selftests: mptcp: more stable simult_flows tests
    https://git.kernel.org/netdev/net/c/8c09412e584d
  - [net,2/5] mptcp: pm: avoid sending RM_ADDR over same subflow
    https://git.kernel.org/netdev/net/c/fb8d0bccb221
  - [net,3/5] selftests: mptcp: join: check RM_ADDR not sent over same subflow
    https://git.kernel.org/netdev/net/c/560edd99b5f5
  - [net,4/5] mptcp: pm: in-kernel: always mark signal+subflow endp as used
    https://git.kernel.org/netdev/net/c/579a752464a6
  - [net,5/5] selftests: mptcp: join: check removing signal+subflow endp
    https://git.kernel.org/netdev/net/c/1777f349ff41

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html

Hi Matthieu,

Thank you for your modifications, that's great!

Our CI did some validations and here is its report:

- KVM Validation: normal (except selftest_mptcp_join): Success! ✅
- KVM Validation: normal (only selftest_mptcp_join): Success! ✅
- KVM Validation: debug (except selftest_mptcp_join): Unstable: 2 failed test(s): packetdrill_dss packetdrill_mp_capable 🔴
- KVM Validation: debug (only selftest_mptcp_join): Success! ✅
- KVM Validation: btf-normal (only bpftest_all): Success! ✅
- KVM Validation: btf-debug (only bpftest_all): Success! ✅
- Task: https://github.com/multipath-tcp/mptcp_net-next/actions/runs/22620286139

Initiator: Patchew Applier
Commits: https://github.com/multipath-tcp/mptcp_net-next/commits/3f28fe9348b4
Patchwork: https://patchwork.kernel.org/project/mptcp/list/?series=1060560


If there are some issues, you can reproduce them using the same environment as
the one used by the CI thanks to a docker image, e.g.:

    $ cd [kernel source code]
    $ docker run -v "${PWD}:${PWD}:rw" -w "${PWD}" --privileged --rm -it \
        --pull always mptcp/mptcp-upstream-virtme-docker:latest \
        auto-normal

For more details:

    https://github.com/multipath-tcp/mptcp-upstream-virtme-docker


Please note that despite all the efforts that have been already done to have a
stable tests suite when executed on a public CI like here, it is possible some
reported issues are not due to your modifications. Still, do not hesitate to
help us improve that ;-)

Cheers,
MPTCP GH Action bot
Bot operated by Matthieu Baerts (NGI0 Core)