linux-kernel - [PATCH net-next v2 0/4] mptcp: a couple of cleanups and improvements

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Date:   Mon, 27 Mar 2023 12:22:20 +0200
From:   Matthieu Baerts <matthieu.baerts@...sares.net>
To:     mptcp@...ts.linux.dev, "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Shuah Khan <shuah@...nel.org>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org,
        Matthieu Baerts <matthieu.baerts@...sares.net>,
        Geliang Tang <geliang.tang@...e.com>
Subject: [PATCH net-next v2 0/4] mptcp: a couple of cleanups and
 improvements

Patch 1 removes an unneeded address copy in subflow_syn_recv_sock().

Patch 2 simplifies subflow_syn_recv_sock() to postpone some actions and
to avoid a bunch of conditionals.

Patch 3 stops reporting limits that are not taken into account when the
userspace PM is used.

Patch 4 adds a new test to validate that the 'subflows' field reported
by the kernel is correct. Such info can be retrieved via Netlink (e.g.
with ss) or getsockopt(SOL_MPTCP, MPTCP_INFO).

Signed-off-by: Matthieu Baerts <matthieu.baerts@...sares.net>
---
Changes in v2:
- Patch 3/4's commit message has been updated to use the correct SHA
- Rebased on latest net-next
- Link to v1: https://lore.kernel.org/r/20230324-upstream-net-next-20230324-misc-features-v1-0-5a29154592bd@tessares.net

---
Geliang Tang (1):
      selftests: mptcp: add mptcp_info tests

Matthieu Baerts (1):
      mptcp: do not fill info not used by the PM in used

Paolo Abeni (2):
      mptcp: avoid unneeded address copy
      mptcp: simplify subflow_syn_recv_sock()

 net/mptcp/sockopt.c                             | 20 +++++++----
 net/mptcp/subflow.c                             | 43 +++++++---------------
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 47 ++++++++++++++++++++++++-
 3 files changed, 72 insertions(+), 38 deletions(-)
---
base-commit: e5b42483ccce50d5b957f474fd332afd4ef0c27b
change-id: 20230324-upstream-net-next-20230324-misc-features-178b2b618414

Best regards,
-- 
Matthieu Baerts <matthieu.baerts@...sares.net>