diff mbox series

[net-next,4/4] selftests: mptcp: userspace_pm: unmute unexpected errors

Message ID 20230730-upstream-net-next-20230728-mptcp-selftests-misc-v1-4-7e9cc530a9cd@tessares.net (mailing list archive)
State Accepted
Commit 6a5c8c69a4c771625ea25fb2bc916d274516288a
Delegated to: Netdev Maintainers
Headers show
Series mptcp: cleanup and improvements in the selftests | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers success CCed 10 of 10 maintainers
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success net selftest script(s) already in Makefile
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 376 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Matthieu Baerts July 30, 2023, 8:05 a.m. UTC 
All pm_nl_ctl commands were muted. If there was an unexpected error with
one of them, this was simply not visible in the logs, making the
analysis very hard. It could also hide misuse of commands by mistake.

Now the output is only muted when we do expect to have an error, e.g.
when giving invalid arguments on purpose.

Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
---
 tools/testing/selftests/net/mptcp/userspace_pm.sh | 100 +++++++++++-----------
 1 file changed, 50 insertions(+), 50 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/mptcp/userspace_pm.sh b/tools/testing/selftests/net/mptcp/userspace_pm.sh
index 23f8959a8ea8..b25a3e33eb25 100755
--- a/tools/testing/selftests/net/mptcp/userspace_pm.sh
+++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh
@@ -380,7 +380,7 @@  test_announce()
 	:>"$server_evts"
 	ip netns exec "$ns2"\
 	   ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id $client_addr_id dev\
-	   ns2eth1 > /dev/null 2>&1
+	   ns2eth1
 	print_test "ADD_ADDR id:${client_addr_id} 10.0.2.2 (ns2) => ns1, reuse port"
 	sleep 0.5
 	verify_announce_event $server_evts $ANNOUNCED $server4_token "10.0.2.2" $client_addr_id \
@@ -389,7 +389,7 @@  test_announce()
 	# ADD_ADDR6 from the client to server machine reusing the subflow port
 	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl ann\
-	   dead:beef:2::2 token "$client6_token" id $client_addr_id dev ns2eth1 > /dev/null 2>&1
+	   dead:beef:2::2 token "$client6_token" id $client_addr_id dev ns2eth1
 	print_test "ADD_ADDR6 id:${client_addr_id} dead:beef:2::2 (ns2) => ns1, reuse port"
 	sleep 0.5
 	verify_announce_event "$server_evts" "$ANNOUNCED" "$server6_token" "dead:beef:2::2"\
@@ -399,7 +399,7 @@  test_announce()
 	:>"$server_evts"
 	client_addr_id=$((client_addr_id+1))
 	ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
-	   $client_addr_id dev ns2eth1 port $new4_port > /dev/null 2>&1
+	   $client_addr_id dev ns2eth1 port $new4_port
 	print_test "ADD_ADDR id:${client_addr_id} 10.0.2.2 (ns2) => ns1, new port"
 	sleep 0.5
 	verify_announce_event "$server_evts" "$ANNOUNCED" "$server4_token" "10.0.2.2"\
@@ -410,7 +410,7 @@  test_announce()
 
 	# ADD_ADDR from the server to client machine reusing the subflow port
 	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
-	   $server_addr_id dev ns1eth2 > /dev/null 2>&1
+	   $server_addr_id dev ns1eth2
 	print_test "ADD_ADDR id:${server_addr_id} 10.0.2.1 (ns1) => ns2, reuse port"
 	sleep 0.5
 	verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
@@ -419,7 +419,7 @@  test_announce()
 	# ADD_ADDR6 from the server to client machine reusing the subflow port
 	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
-	   $server_addr_id dev ns1eth2 > /dev/null 2>&1
+	   $server_addr_id dev ns1eth2
 	print_test "ADD_ADDR6 id:${server_addr_id} dead:beef:2::1 (ns1) => ns2, reuse port"
 	sleep 0.5
 	verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "dead:beef:2::1"\
@@ -429,7 +429,7 @@  test_announce()
 	:>"$client_evts"
 	server_addr_id=$((server_addr_id+1))
 	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
-	   $server_addr_id dev ns1eth2 port $new4_port > /dev/null 2>&1
+	   $server_addr_id dev ns1eth2 port $new4_port
 	print_test "ADD_ADDR id:${server_addr_id} 10.0.2.1 (ns1) => ns2, new port"
 	sleep 0.5
 	verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
@@ -490,7 +490,7 @@  test_remove()
 	# RM_ADDR from the client to server machine
 	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
-	   $client_addr_id > /dev/null 2>&1
+	   $client_addr_id
 	print_test "RM_ADDR id:${client_addr_id} ns2 => ns1"
 	sleep 0.5
 	verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
@@ -499,7 +499,7 @@  test_remove()
 	:>"$server_evts"
 	client_addr_id=$(( client_addr_id - 1 ))
 	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
-	   $client_addr_id > /dev/null 2>&1
+	   $client_addr_id
 	print_test "RM_ADDR id:${client_addr_id} ns2 => ns1"
 	sleep 0.5
 	verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
@@ -507,7 +507,7 @@  test_remove()
 	# RM_ADDR6 from the client to server machine
 	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client6_token" id\
-	   $client_addr_id > /dev/null 2>&1
+	   $client_addr_id
 	print_test "RM_ADDR6 id:${client_addr_id} ns2 => ns1"
 	sleep 0.5
 	verify_remove_event "$server_evts" "$REMOVED" "$server6_token" "$client_addr_id"
@@ -517,7 +517,7 @@  test_remove()
 
 	# RM_ADDR from the server to client machine
 	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
-	   $server_addr_id > /dev/null 2>&1
+	   $server_addr_id
 	print_test "RM_ADDR id:${server_addr_id} ns1 => ns2"
 	sleep 0.5
 	verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
@@ -526,7 +526,7 @@  test_remove()
 	:>"$client_evts"
 	server_addr_id=$(( server_addr_id - 1 ))
 	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
-	   $server_addr_id > /dev/null 2>&1
+	   $server_addr_id
 	print_test "RM_ADDR id:${server_addr_id} ns1 => ns2"
 	sleep 0.5
 	verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
@@ -534,7 +534,7 @@  test_remove()
 	# RM_ADDR6 from the server to client machine
 	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server6_token" id\
-	   $server_addr_id > /dev/null 2>&1
+	   $server_addr_id
 	print_test "RM_ADDR6 id:${server_addr_id} ns1 => ns2"
 	sleep 0.5
 	verify_remove_event "$client_evts" "$REMOVED" "$client6_token" "$server_addr_id"
@@ -610,18 +610,18 @@  test_subflows()
 
 	# Attempt to add a listener at 10.0.2.2:<subflow-port>
 	ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\
-	   "$client4_port" > /dev/null 2>&1 &
+	   "$client4_port" &
 	local listener_pid=$!
 
 	# ADD_ADDR from client to server machine reusing the subflow port
 	ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
-	   $client_addr_id > /dev/null 2>&1
+	   $client_addr_id
 	sleep 0.5
 
 	# CREATE_SUBFLOW from server to client machine
 	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2\
-	   rport "$client4_port" token "$server4_token" > /dev/null 2>&1
+	   rport "$client4_port" token "$server4_token"
 	sleep 0.5
 	verify_subflow_events $server_evts $SUB_ESTABLISHED $server4_token $AF_INET "10.0.2.1" \
 			      "10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
@@ -635,31 +635,31 @@  test_subflows()
 	# DESTROY_SUBFLOW from server to client machine
 	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
-	   "$client4_port" token "$server4_token" > /dev/null 2>&1
+	   "$client4_port" token "$server4_token"
 	sleep 0.5
 	verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
 			      "10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
 
 	# RM_ADDR from client to server machine
 	ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
-	   "$client4_token" > /dev/null 2>&1
+	   "$client4_token"
 	sleep 0.5
 
 	# Attempt to add a listener at dead:beef:2::2:<subflow-port>
 	ip netns exec "$ns2" ./pm_nl_ctl listen dead:beef:2::2\
-	   "$client6_port" > /dev/null 2>&1 &
+	   "$client6_port" &
 	listener_pid=$!
 
 	# ADD_ADDR6 from client to server machine reusing the subflow port
 	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl ann dead:beef:2::2 token "$client6_token" id\
-	   $client_addr_id > /dev/null 2>&1
+	   $client_addr_id
 	sleep 0.5
 
 	# CREATE_SUBFLOW6 from server to client machine
 	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl csf lip dead:beef:2::1 lid 23 rip\
-	   dead:beef:2::2 rport "$client6_port" token "$server6_token" > /dev/null 2>&1
+	   dead:beef:2::2 rport "$client6_port" token "$server6_token"
 	sleep 0.5
 	verify_subflow_events "$server_evts" "$SUB_ESTABLISHED" "$server6_token" "$AF_INET6"\
 			      "dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
@@ -673,7 +673,7 @@  test_subflows()
 	# DESTROY_SUBFLOW6 from server to client machine
 	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl dsf lip dead:beef:2::1 lport "$sport" rip\
-	   dead:beef:2::2 rport "$client6_port" token "$server6_token" > /dev/null 2>&1
+	   dead:beef:2::2 rport "$client6_port" token "$server6_token"
 	sleep 0.5
 	verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server6_token" "$AF_INET6"\
 			      "dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
@@ -681,24 +681,24 @@  test_subflows()
 
 	# RM_ADDR from client to server machine
 	ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
-	   "$client6_token" > /dev/null 2>&1
+	   "$client6_token"
 	sleep 0.5
 
 	# Attempt to add a listener at 10.0.2.2:<new-port>
 	ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\
-	   $new4_port > /dev/null 2>&1 &
+	   $new4_port &
 	listener_pid=$!
 
 	# ADD_ADDR from client to server machine using a new port
 	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
-	   $client_addr_id port $new4_port > /dev/null 2>&1
+	   $client_addr_id port $new4_port
 	sleep 0.5
 
 	# CREATE_SUBFLOW from server to client machine
 	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2 rport\
-	   $new4_port token "$server4_token" > /dev/null 2>&1
+	   $new4_port token "$server4_token"
 	sleep 0.5
 	verify_subflow_events "$server_evts" "$SUB_ESTABLISHED" "$server4_token" "$AF_INET"\
 			      "10.0.2.1" "10.0.2.2" "$new4_port" "23"\
@@ -712,32 +712,32 @@  test_subflows()
 	# DESTROY_SUBFLOW from server to client machine
 	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
-	   $new4_port token "$server4_token" > /dev/null 2>&1
+	   $new4_port token "$server4_token"
 	sleep 0.5
 	verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
 			      "10.0.2.2" "$new4_port" "23" "$client_addr_id" "ns1" "ns2"
 
 	# RM_ADDR from client to server machine
 	ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
-	   "$client4_token" > /dev/null 2>&1
+	   "$client4_token"
 
 	# Capture events on the network namespace running the client
 	:>"$client_evts"
 
 	# Attempt to add a listener at 10.0.2.1:<subflow-port>
 	ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
-	   $app4_port > /dev/null 2>&1 &
+	   $app4_port &
 	listener_pid=$!
 
 	# ADD_ADDR from server to client machine reusing the subflow port
 	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
-	   $server_addr_id > /dev/null 2>&1
+	   $server_addr_id
 	sleep 0.5
 
 	# CREATE_SUBFLOW from client to server machine
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
-	   $app4_port token "$client4_token" > /dev/null 2>&1
+	   $app4_port token "$client4_token"
 	sleep 0.5
 	verify_subflow_events $client_evts $SUB_ESTABLISHED $client4_token $AF_INET "10.0.2.2"\
 			      "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
@@ -750,31 +750,31 @@  test_subflows()
 	# DESTROY_SUBFLOW from client to server machine
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
-	   $app4_port token "$client4_token" > /dev/null 2>&1
+	   $app4_port token "$client4_token"
 	sleep 0.5
 	verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
 			      "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
 
 	# RM_ADDR from server to client machine
 	ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
-	   "$server4_token" > /dev/null 2>&1
+	   "$server4_token"
 	sleep 0.5
 
 	# Attempt to add a listener at dead:beef:2::1:<subflow-port>
 	ip netns exec "$ns1" ./pm_nl_ctl listen dead:beef:2::1\
-	   $app6_port > /dev/null 2>&1 &
+	   $app6_port &
 	listener_pid=$!
 
 	# ADD_ADDR6 from server to client machine reusing the subflow port
 	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
-	   $server_addr_id > /dev/null 2>&1
+	   $server_addr_id
 	sleep 0.5
 
 	# CREATE_SUBFLOW6 from client to server machine
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl csf lip dead:beef:2::2 lid 23 rip\
-	   dead:beef:2::1 rport $app6_port token "$client6_token" > /dev/null 2>&1
+	   dead:beef:2::1 rport $app6_port token "$client6_token"
 	sleep 0.5
 	verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client6_token"\
 			      "$AF_INET6" "dead:beef:2::2"\
@@ -789,31 +789,31 @@  test_subflows()
 	# DESTROY_SUBFLOW6 from client to server machine
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl dsf lip dead:beef:2::2 lport "$sport" rip\
-	   dead:beef:2::1 rport $app6_port token "$client6_token" > /dev/null 2>&1
+	   dead:beef:2::1 rport $app6_port token "$client6_token"
 	sleep 0.5
 	verify_subflow_events $client_evts $SUB_CLOSED $client6_token $AF_INET6 "dead:beef:2::2"\
 			      "dead:beef:2::1" "$app6_port" "23" "$server_addr_id" "ns2" "ns1"
 
 	# RM_ADDR6 from server to client machine
 	ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
-	   "$server6_token" > /dev/null 2>&1
+	   "$server6_token"
 	sleep 0.5
 
 	# Attempt to add a listener at 10.0.2.1:<new-port>
 	ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
-	   $new4_port > /dev/null 2>&1 &
+	   $new4_port &
 	listener_pid=$!
 
 	# ADD_ADDR from server to client machine using a new port
 	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
-	   $server_addr_id port $new4_port > /dev/null 2>&1
+	   $server_addr_id port $new4_port
 	sleep 0.5
 
 	# CREATE_SUBFLOW from client to server machine
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
-	   $new4_port token "$client4_token" > /dev/null 2>&1
+	   $new4_port token "$client4_token"
 	sleep 0.5
 	verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client4_token" "$AF_INET"\
 			      "10.0.2.2" "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
@@ -826,14 +826,14 @@  test_subflows()
 	# DESTROY_SUBFLOW from client to server machine
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
-	   $new4_port token "$client4_token" > /dev/null 2>&1
+	   $new4_port token "$client4_token"
 	sleep 0.5
 	verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
 			      "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
 
 	# RM_ADDR from server to client machine
 	ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
-	   "$server4_token" > /dev/null 2>&1
+	   "$server4_token"
 }
 
 test_subflows_v4_v6_mix()
@@ -842,14 +842,14 @@  test_subflows_v4_v6_mix()
 
 	# Attempt to add a listener at 10.0.2.1:<subflow-port>
 	ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
-	   $app6_port > /dev/null 2>&1 &
+	   $app6_port &
 	local listener_pid=$!
 
 	# ADD_ADDR4 from server to client machine reusing the subflow port on
 	# the established v6 connection
 	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server6_token" id\
-	   $server_addr_id dev ns1eth2 > /dev/null 2>&1
+	   $server_addr_id dev ns1eth2
 	print_test "ADD_ADDR4 id:${server_addr_id} 10.0.2.1 (ns1) => ns2, reuse port"
 	sleep 0.5
 	verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "10.0.2.1"\
@@ -858,7 +858,7 @@  test_subflows_v4_v6_mix()
 	# CREATE_SUBFLOW from client to server machine
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
-	   $app6_port token "$client6_token" > /dev/null 2>&1
+	   $app6_port token "$client6_token"
 	sleep 0.5
 	verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client6_token"\
 			      "$AF_INET" "10.0.2.2" "10.0.2.1" "$app6_port" "23"\
@@ -872,7 +872,7 @@  test_subflows_v4_v6_mix()
 	# DESTROY_SUBFLOW from client to server machine
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
-	   $app6_port token "$client6_token" > /dev/null 2>&1
+	   $app6_port token "$client6_token"
 	sleep 0.5
 	verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client6_token" \
 			      "$AF_INET" "10.0.2.2" "10.0.2.1" "$app6_port" "23"\
@@ -880,7 +880,7 @@  test_subflows_v4_v6_mix()
 
 	# RM_ADDR from server to client machine
 	ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
-	   "$server6_token" > /dev/null 2>&1
+	   "$server6_token"
 	sleep 0.5
 }
 
@@ -965,7 +965,7 @@  test_listener()
 
 	# Attempt to add a listener at 10.0.2.2:<subflow-port>
 	ip netns exec $ns2 ./pm_nl_ctl listen 10.0.2.2\
-		$client4_port > /dev/null 2>&1 &
+		$client4_port &
 	local listener_pid=$!
 
 	sleep 0.5
@@ -973,12 +973,12 @@  test_listener()
 
 	# ADD_ADDR from client to server machine reusing the subflow port
 	ip netns exec $ns2 ./pm_nl_ctl ann 10.0.2.2 token $client4_token id\
-		$client_addr_id > /dev/null 2>&1
+		$client_addr_id
 	sleep 0.5
 
 	# CREATE_SUBFLOW from server to client machine
 	ip netns exec $ns1 ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2\
-		rport $client4_port token $server4_token > /dev/null 2>&1
+		rport $client4_port token $server4_token
 	sleep 0.5
 
 	# Delete the listener from the client ns, if one was created