[PATCH mptcp-next v6 0/4] add skc_to_mptcp_sock

[Geliang Tang <geliang.tang@suse.com>]

v6:
 - add skc_to_mptcp_sock helper and test

RESEND:
 - fix the CI Build Failure.
v5:
 - fix incorrect token value
 - verify the token in selftest

v4:
 - define bpf_mptcp_sock_proto as a static function, no longer export
   it in linux/bpf.h

v3:
 - use RET_PTR_TO_BTF_ID_OR_NULL instead of RET_PTR_TO_MPTCP_SOCK_OR_NULL
 - add a new bpf_id BTF_SOCK_TYPE_MPTCP

v2:
 - keep RET_PTR_TO_MPTCP_SOCK_OR_NULL. If we use RET_PTR_TO_BTF_ID_OR_NULL
instead of RET_PTR_TO_MPTCP_SOCK_OR_NULL as Alexei suggested, the
"userspace" tests developed by Nicolas will break.

Geliang Tang (4):
  Revert "selftests: bpf: add bpf_mptcp_sock() verifier tests"
  Revert "bpf: add 'bpf_mptcp_sock' structure and helper"
  bpf: add skc_to_mptcp_sock helper
  selftests: bpf: add skc_to_mptcp_sock test

 include/linux/bpf.h                           | 31 +--------
 include/linux/btf_ids.h                       |  3 +-
 include/uapi/linux/bpf.h                      | 14 ++--
 kernel/bpf/verifier.c                         | 20 ------
 net/core/filter.c                             | 21 ++++--
 net/mptcp/bpf.c                               | 67 ++-----------------
 scripts/bpf_doc.py                            |  4 +-
 tools/include/uapi/linux/bpf.h                | 14 ++--
 tools/testing/selftests/bpf/bpf_tcp_helpers.h |  6 ++
 .../testing/selftests/bpf/prog_tests/mptcp.c  | 27 ++++++--
 tools/testing/selftests/bpf/progs/mptcp.c     | 23 +++++++
 tools/testing/selftests/bpf/verifier/sock.c   | 63 -----------------
 12 files changed, 89 insertions(+), 204 deletions(-)

-- 
2.34.1