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| author | Matthieu Baerts (NGI0) <matttbe@kernel.org> | 2026-01-27 20:27:27 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-02-06 16:48:25 +0100 |
| commit | 4bed436cdef70da05d197503a9b71c5536316958 (patch) | |
| tree | 8a17cc4887a4fdac231725b82014580528be0719 | |
| parent | ba58cd70a42232a1c7292dedc3a1d390ae2a0784 (diff) | |
| download | linux-4bed436cdef70da05d197503a9b71c5536316958.tar.gz linux-4bed436cdef70da05d197503a9b71c5536316958.tar.bz2 linux-4bed436cdef70da05d197503a9b71c5536316958.zip | |
selftests: mptcp: join: fix local endp not being tracked
commit c5d5ecf21fdd9ce91e6116feb3aa83cee73352cc upstream.
When running this mptcp_join.sh selftest on older kernel versions not
supporting local endpoints tracking, this test fails because 3 MP_JOIN
ACKs have been received, while only 2 were expected.
It is not clear why only 2 MP_JOIN ACKs were expected on old kernel
versions, while 3 MP_JOIN SYN and SYN+ACK were expected. When testing on
the v5.15.197 kernel, 3 MP_JOIN ACKs are seen, which is also what is
expected in the selftests included in this kernel version, see commit
f4480eaad489 ("selftests: mptcp: add missing join check").
Switch the expected MP_JOIN ACKs to 3. While at it, move this
chk_join_nr helper out of the special condition for older kernel
versions as it is now the same as with more recent ones. Also, invert
the condition to be more logical: what's expected on newer kernel
versions having such helper first.
Fixes: d4c81bbb8600 ("selftests: mptcp: join: support local endpoint being tracked or not")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260127-net-mptcp-dup-nl-events-v1-5-7f71e1bc4feb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rwxr-xr-x | tools/testing/selftests/net/mptcp/mptcp_join.sh | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh index c88d78639948..c571563a42c5 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_join.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh @@ -2203,17 +2203,16 @@ signal_address_tests() ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=1 speed=slow \ run_tests $ns1 $ns2 10.0.1.1 + chk_join_nr 3 3 3 # It is not directly linked to the commit introducing this # symbol but for the parent one which is linked anyway. - if ! mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then - chk_join_nr 3 3 2 - chk_add_nr 4 4 - else - chk_join_nr 3 3 3 + if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then # the server will not signal the address terminating # the MPC subflow chk_add_nr 3 3 + else + chk_add_nr 4 4 fi fi } |