The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x cdb50525345cf5a8359ee391032ef606a7826f08 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2023062227-sporting-calcium-8268@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From cdb50525345cf5a8359ee391032ef606a7826f08 Mon Sep 17 00:00:00 2001 From: Matthieu Baerts matthieu.baerts@tessares.net Date: Sat, 10 Jun 2023 18:11:38 +0200 Subject: [PATCH] selftests: mptcp: join: helpers to skip tests

Selftests are supposed to run on any kernels, including the old ones not supporting all MPTCP features.

Here are some helpers that will be used to mark subtests as skipped if a feature is not supported. Marking as a fix for the commit introducing this selftest to help with the backports.

While at it, also check if kallsyms feature is available as it will also be used in the following commits to check if MPTCP features are available before starting a test.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368 Fixes: b08fbf241064 ("selftests: add test-cases for MPTCP MP_JOIN") Cc: stable@vger.kernel.org Signed-off-by: Matthieu Baerts matthieu.baerts@tessares.net Signed-off-by: Jakub Kicinski kuba@kernel.org

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh index 74cc8a74a9d6..a63aed145393 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_join.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh @@ -142,6 +142,7 @@ cleanup_partial() check_tools() { mptcp_lib_check_mptcp + mptcp_lib_check_kallsyms

if ! ip -Version &> /dev/null; then echo "SKIP: Could not run test without ip tool" @@ -191,6 +192,32 @@ cleanup() cleanup_partial }

+# $1: msg +print_title() +{ + printf "%03u %-36s %s" "${TEST_COUNT}" "${TEST_NAME}" "${1}" +} + +# [ $1: fail msg ] +mark_as_skipped() +{ + local msg="${1:-"Feature not supported"}" + + mptcp_lib_fail_if_expected_feature "${msg}" + + print_title "[ skip ] ${msg}" + printf "\n" +} + +# $@: condition +continue_if() +{ + if ! "${@}"; then + mark_as_skipped + return 1 + fi +} + skip_test() { if [ "${#only_tests_ids[@]}" -eq 0 ] && [ "${#only_tests_names[@]}" -eq 0 ]; then