Selftests are supposed to run on any kernels, including the old ones not supporting all MPTCP features.
One of them is the getsockopt(SOL_MPTCP) to get info about the MPTCP connections introduced by commit 55c42fa7fa33 ("mptcp: add MPTCP_INFO getsockopt") and the following ones.
It is possible to look for "mptcp_diag_fill_info" in kallsyms because it is introduced by the mentioned feature. So we can know in advance if the feature is supported and skip the sub-test if not.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368 Fixes: ce9979129a0b ("selftests: mptcp: add mptcp getsockopt test cases") Cc: stable@vger.kernel.org Signed-off-by: Matthieu Baerts matthieu.baerts@tessares.net --- tools/testing/selftests/net/mptcp/mptcp_sockopt.sh | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh index ff5adbb9c7f2..1d4ae8792227 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh @@ -87,6 +87,7 @@ cleanup() }
mptcp_lib_check_mptcp +mptcp_lib_check_kallsyms
ip -Version > /dev/null 2>&1 if [ $? -ne 0 ];then @@ -253,6 +254,11 @@ do_mptcp_sockopt_tests() { local lret=0
+ if ! mptcp_lib_kallsyms_has "mptcp_diag_fill_info$"; then + echo "INFO: MPTCP sockopt not supported: SKIP" + return + fi + ip netns exec "$ns_sbox" ./mptcp_sockopt lret=$?