This is a note to let you know that I've just added the patch titled selftests: mptcp: join: support RM_ADDR for used endpoints or not to the 6.3-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: selftests-mptcp-join-support-rm_addr-for-used-endpoints-or-not.patch and it can be found in the queue-6.3 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 425ba803124b90cb9124d99f13b372a89dc151d9 Mon Sep 17 00:00:00 2001 From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> Date: Sat, 10 Jun 2023 18:11:43 +0200 Subject: selftests: mptcp: join: support RM_ADDR for used endpoints or not From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> commit 425ba803124b90cb9124d99f13b372a89dc151d9 upstream. Selftests are supposed to run on any kernels, including the old ones not supporting all MPTCP features. At some points, a new feature caused internal behaviour changes we are verifying in the selftests, see the Fixes tag below. It was not a UAPI change but because in these selftests, we check some internal behaviours, it is normal we have to adapt them from time to time after having added some features. It looks like there is no external sign we can use to predict the expected behaviour. Instead of accepting different behaviours and thus not really checking for the expected behaviour, we are looking here for a specific kernel version. That's not ideal but it looks better than removing the test because it cannot support older kernel versions. Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368 Fixes: 6fa0174a7c86 ("mptcp: more careful RM_ADDR generation") Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/net/mptcp/mptcp_join.sh | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) --- a/tools/testing/selftests/net/mptcp/mptcp_join.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh @@ -2354,7 +2354,12 @@ remove_tests() pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow run_tests $ns1 $ns2 10.0.1.1 0 -8 -8 slow chk_join_nr 3 3 3 - chk_rm_nr 0 3 simult + + if mptcp_lib_kversion_ge 5.18; then + chk_rm_nr 0 3 simult + else + chk_rm_nr 3 3 + fi fi # addresses flush Patches currently in stable-queue which might be from matthieu.baerts@xxxxxxxxxxxx are queue-6.3/selftests-mptcp-join-fix-shellcheck-warnings.patch queue-6.3/selftests-mptcp-join-support-rm_addr-for-used-endpoints-or-not.patch queue-6.3/selftests-mptcp-pm-nl-skip-fullmesh-flag-checks-if-not-supported.patch queue-6.3/selftests-mptcp-lib-skip-if-missing-symbol.patch queue-6.3/selftests-mptcp-join-skip-fullmesh-flag-tests-if-not-supported.patch queue-6.3/selftests-mptcp-connect-skip-tfo-tests-if-not-supported.patch queue-6.3/selftests-mptcp-join-skip-fastclose-tests-if-not-supported.patch queue-6.3/selftests-mptcp-remove-duplicated-entries-in-usage.patch queue-6.3/selftests-mptcp-sockopt-skip-getsockopt-checks-if-not-supported.patch queue-6.3/selftests-mptcp-join-skip-backup-if-set-flag-on-id-not-supported.patch queue-6.3/selftests-mptcp-join-skip-mixed-tests-if-not-supported.patch queue-6.3/selftests-mptcp-userspace-pm-skip-if-ip-tool-is-unavailable.patch queue-6.3/selftests-mptcp-join-helpers-to-skip-tests.patch queue-6.3/selftests-mptcp-lib-skip-if-not-below-kernel-version.patch queue-6.3/selftests-mptcp-userspace-pm-skip-if-not-supported.patch queue-6.3/selftests-mptcp-join-uniform-listener-tests.patch queue-6.3/selftests-mptcp-diag-skip-listen-tests-if-not-supported.patch queue-6.3/selftests-mptcp-sockopt-skip-tcp_inq-checks-if-not-supported.patch queue-6.3/selftests-mptcp-join-skip-test-if-iptables-tc-cmds-fail.patch queue-6.3/selftests-mptcp-join-skip-implicit-tests-if-not-supported.patch queue-6.3/selftests-mptcp-userspace-pm-skip-pm-listener-events-tests-if-unavailable.patch queue-6.3/selftests-mptcp-join-skip-fail-tests-if-not-supported.patch queue-6.3/selftests-mptcp-sockopt-relax-expected-returned-size.patch queue-6.3/selftests-mptcp-pm-nl-remove-hardcoded-default-limits.patch queue-6.3/selftests-mptcp-join-skip-check-if-mib-counter-not-supported.patch queue-6.3/selftests-mptcp-diag-skip-inuse-tests-if-not-supported.patch queue-6.3/selftests-mptcp-join-use-iptables-legacy-if-available.patch queue-6.3/selftests-mptcp-join-support-local-endpoint-being-tracked-or-not.patch queue-6.3/selftests-mptcp-join-skip-userspace-pm-tests-if-not-supported.patch queue-6.3/selftests-mptcp-connect-skip-transp-tests-if-not-supported.patch queue-6.3/selftests-mptcp-join-skip-mpc-backups-tests-if-not-supported.patch queue-6.3/selftests-mptcp-join-skip-pm-listener-tests-if-not-supported.patch queue-6.3/selftests-mptcp-connect-skip-disconnect-tests-if-not-supported.patch