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>
---
tools/testing/selftests/net/mptcp/mptcp_join.sh | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 7867bad59253..554fcafd6e8a 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -2713,14 +2713,16 @@ 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 $ns2 10.0.1.1 0 0 0 slow
@@ -2728,14 +2730,16 @@ backup_tests()
chk_prio_nr 1 1
fi
- if reset "mpc switch to backup"; then
+ if reset "mpc switch to backup" &&
+ continue_if mptcp_lib_kallsyms_doesnt_have "mptcp_subflow_send_ack$"; 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
--
2.40.1
