This is a note to let you know that I've just added the patch titled selftests: mptcp: join: skip MPC backups tests if not supported 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-skip-mpc-backups-tests-if-not-supported.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 632978f0a961b4591a05ba9e39eab24541d83e84 Mon Sep 17 00:00:00 2001 From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> Date: Sat, 10 Jun 2023 18:11:49 +0200 Subject: selftests: mptcp: join: skip MPC backups tests if not supported From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> commit 632978f0a961b4591a05ba9e39eab24541d83e84 upstream. Selftests are supposed to run on any kernels, including the old ones not supporting all MPTCP features. One of them is the support of sending an MP_PRIO signal for the initial subflow, introduced by commit c157bbe776b7 ("mptcp: allow the in kernel PM to set MPC subflow priority"). It is possible to look for "mptcp_subflow_send_ack" in kallsyms because it was needed to introduce the mentioned feature. So we can know in advance if the feature is supported instead of trying and accepting any results. Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368 Fixes: 914f6a59b10f ("selftests: mptcp: add MPC backup tests") 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 | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) --- a/tools/testing/selftests/net/mptcp/mptcp_join.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh @@ -2673,14 +2673,16 @@ backup_tests() chk_prio_nr 1 1 fi - if reset "mpc backup"; then + if reset "mpc backup" && + continue_if mptcp_lib_kallsyms_doesnt_have "mptcp_subflow_send_ack$"; then pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow chk_join_nr 0 0 0 chk_prio_nr 0 1 fi - if reset "mpc backup both sides"; then + if reset "mpc backup both sides" && + continue_if mptcp_lib_kallsyms_doesnt_have "mptcp_subflow_send_ack$"; then pm_nl_add_endpoint $ns1 10.0.1.1 flags subflow,backup pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow @@ -2688,14 +2690,16 @@ backup_tests() chk_prio_nr 1 1 fi - if reset "mpc switch to backup"; then + if reset "mpc switch to backup" && + continue_if mptcp_lib_kallsyms_doesnt_have "mptcp_subflow_send_ack$"; then pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow backup chk_join_nr 0 0 0 chk_prio_nr 0 1 fi - if reset "mpc switch to backup both sides"; then + if reset "mpc switch to backup both sides" && + continue_if mptcp_lib_kallsyms_doesnt_have "mptcp_subflow_send_ack$"; then pm_nl_add_endpoint $ns1 10.0.1.1 flags subflow pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow backup 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