This is a note to let you know that I've just added the patch titled selftests: mptcp: connect: skip TFO 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-connect-skip-tfo-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 06b03083158e90d57866fa220de92c8dd8b9598b Mon Sep 17 00:00:00 2001 From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> Date: Thu, 8 Jun 2023 18:38:46 +0200 Subject: selftests: mptcp: connect: skip TFO tests if not supported From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> commit 06b03083158e90d57866fa220de92c8dd8b9598b 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 TCP_FASTOPEN socket option with MPTCP connections introduced by commit 4ffb0a02346c ("mptcp: add TCP_FASTOPEN sock option"). It is possible to look for "mptcp_fastopen_" in kallsyms to know if the feature is supported or not. Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368 Fixes: ca7ae8916043 ("selftests: mptcp: mptfo Initiator/Listener") 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_connect.sh | 5 +++++ 1 file changed, 5 insertions(+) --- a/tools/testing/selftests/net/mptcp/mptcp_connect.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_connect.sh @@ -777,6 +777,11 @@ run_tests_peekmode() run_tests_mptfo() { + if ! mptcp_lib_kallsyms_has "mptcp_fastopen_"; then + echo "INFO: TFO not supported by the kernel: SKIP" + return + fi + echo "INFO: with MPTFO start" ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=2 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=1 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