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[net,15/17] selftests: mptcp: join: skip PM listener tests if not supported

Message ID 20230609-upstream-net-20230610-mptcp-selftests-support-old-kernels-part-3-v1-15-2896fe2ee8a3@tessares.net
State Accepted
Commit 0471bb479af03874b09350fcfe51d3743a5608de
Headers show
Series [net,01/17] selftests: mptcp: lib: skip if not below kernel version | expand

Commit Message

Matthieu Baerts June 10, 2023, 4:11 p.m. UTC
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.

One of them is the support of PM listener events introduced by commit
f8c9dfbd875b ("mptcp: add pm listener events").

It is possible to look for "mptcp_event_pm_listener" in kallsyms to know
in advance if the kernel supports this feature.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 178d023208eb ("selftests: mptcp: listener test for in-kernel PM")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
---
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 554fcafd6e8a..0c22efeba675 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -2774,6 +2774,11 @@  verify_listener_events()
 			$e_saddr $e_sport
 	fi
 
+	if ! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
+		printf "[skip]: event not supported\n"
+		return
+	fi
+
 	type=$(grep "type:$e_type," $evt |
 	       sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q')
 	family=$(grep "type:$e_type," $evt |