selftests: mptcp: display simult in extra_msg

Just like displaying "invert" after "Info: ", "simult" should be
displayed too when rm_subflow_nr doesn't match the expect value in
chk_rm_nr():

      syn                                 [ ok ]
      synack                              [ ok ]
      ack                                 [ ok ]
      add                                 [ ok ]
      echo                                [ ok ]
      rm                                  [ ok ]
      rmsf                                [ ok ] 3 in [2:4]
      Info: invert simult

      syn                                 [ ok ]
      synack                              [ ok ]
      ack                                 [ ok ]
      add                                 [ ok ]
      echo                                [ ok ]
      rm                                  [ ok ]
      rmsf                                [ ok ]
      Info: invert

Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231025-send-net-next-20231025-v1-10-db8f25f798eb@kernel.org
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 5917a74b749d005991d2a1a79bb1945ebdae46cb..75a2438efdf3737c038f947075f3705ee6042d42 100755 (executable)
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -1770,7 +1770,10 @@ chk_rm_nr()
                # in case of simult flush, the subflow removal count on each side is
                # unreliable
                count=$((count + cnt))
-               [ "$count" != "$rm_subflow_nr" ] && suffix="$count in [$rm_subflow_nr:$((rm_subflow_nr*2))]"
+               if [ "$count" != "$rm_subflow_nr" ]; then
+                       suffix="$count in [$rm_subflow_nr:$((rm_subflow_nr*2))]"
+                       extra_msg="$extra_msg simult"
+               fi
                if [ $count -ge "$rm_subflow_nr" ] && \
                   [ "$count" -le "$((rm_subflow_nr *2 ))" ]; then
                        print_ok "$suffix"