From: Geliang Tang <tanggeliang@kylinos.cn>

v2:
 - update patch 1 as Martin and Andrii suggested.
 - fix warnings and errors reported by MPTCP CI.

This patch set adds a mptcp_subflow type bpf_iter, and self tests.

Geliang Tang (4):
  bpf: Add mptcp_subflow bpf_iter
  bpf: Register mptcp tracing kfunc set
  selftests/bpf: Add mptcp_subflow bpf_iter test prog
  selftests/bpf: Add mptcp_subflow bpf_iter subtest

 net/mptcp/bpf.c                               | 58 ++++++++++++-
 net/mptcp/protocol.h                          |  6 ++
 .../testing/selftests/bpf/bpf_experimental.h  |  7 ++
 .../testing/selftests/bpf/prog_tests/mptcp.c  | 85 +++++++++++++++++++
 tools/testing/selftests/bpf/progs/mptcp_bpf.h |  4 +
 .../selftests/bpf/progs/mptcp_bpf_iter.c      | 38 +++++++++
 6 files changed, 197 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/bpf/progs/mptcp_bpf_iter.c

-- 
2.43.0

Hi Geliang,

Thank you for your modifications, that's great!

Our CI did some validations and here is its report:

- KVM Validation: normal: Success! ✅
- KVM Validation: debug: Success! ✅
- KVM Validation: btf (only bpftest_all): Success! ✅
- Task: https://github.com/multipath-tcp/mptcp_net-next/actions/runs/10765143216

Initiator: Patchew Applier
Commits: https://github.com/multipath-tcp/mptcp_net-next/commits/47ba4265c94f
Patchwork: https://patchwork.kernel.org/project/mptcp/list/?series=888193


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)