selftests: mptcp: join: mute errors when ran in the background

The test is supposed to be killed before the end, which will likely
cause "Connection reset by peer" errors. It is confusing, especially
because in case of real transfer errors, the test will not be marked as
failed. But that's OK, there are many other tests checking that.

Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240902-net-next-mptcp-mib-mpjtx-misc-v1-9-d3e0f3773b90@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 321197d8977e35d3587efc84aae267f2eb016244..5d164abc18e5371485f4a264245796978dfa1b16 100755 (executable)
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -3542,8 +3542,8 @@ userspace_tests()
           continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
                set_userspace_pm $ns1
                pm_nl_set_limits $ns2 2 2
-               speed=5 \
-                       run_tests $ns1 $ns2 10.0.1.1 &
+               { speed=5 \
+                       run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
                wait_mpj $ns1
                userspace_pm_add_addr $ns1 10.0.2.1 10
@@ -3575,8 +3575,8 @@ userspace_tests()
           continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
                set_userspace_pm $ns2
                pm_nl_set_limits $ns1 0 1
-               speed=5 \
-                       run_tests $ns1 $ns2 10.0.1.1 &
+               { speed=5 \
+                       run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
                wait_mpj $ns2
                userspace_pm_add_sf $ns2 10.0.3.2 20
@@ -3603,8 +3603,8 @@ userspace_tests()
           continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
                set_userspace_pm $ns2
                pm_nl_set_limits $ns1 0 1
-               speed=5 \
-                       run_tests $ns1 $ns2 10.0.1.1 &
+               { speed=5 \
+                       run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
                wait_mpj $ns2
                chk_mptcp_info subflows 0 subflows 0
@@ -3624,8 +3624,8 @@ userspace_tests()
           continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
                set_userspace_pm $ns2
                pm_nl_set_limits $ns1 0 1
-               speed=5 \
-                       run_tests $ns1 $ns2 10.0.1.1 &
+               { speed=5 \
+                       run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
                wait_mpj $ns2
                userspace_pm_add_sf $ns2 10.0.3.2 20
@@ -3648,8 +3648,8 @@ userspace_tests()
           continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
                set_userspace_pm $ns1
                pm_nl_set_limits $ns2 1 1
-               speed=5 \
-                       run_tests $ns1 $ns2 10.0.1.1 &
+               { speed=5 \
+                       run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
                wait_mpj $ns1
                userspace_pm_add_addr $ns1 10.0.2.1 10
@@ -3679,8 +3679,8 @@ endpoint_tests()
                pm_nl_set_limits $ns1 2 2
                pm_nl_set_limits $ns2 2 2
                pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
-               speed=slow \
-                       run_tests $ns1 $ns2 10.0.1.1 &
+               { speed=slow \
+                       run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
 
                wait_mpj $ns1
@@ -3706,8 +3706,8 @@ endpoint_tests()
                pm_nl_set_limits $ns2 0 3
                pm_nl_add_endpoint $ns2 10.0.1.2 id 1 dev ns2eth1 flags subflow
                pm_nl_add_endpoint $ns2 10.0.2.2 id 2 dev ns2eth2 flags subflow
-               test_linkfail=4 speed=5 \
-                       run_tests $ns1 $ns2 10.0.1.1 &
+               { test_linkfail=4 speed=5 \
+                       run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
 
                wait_mpj $ns2
@@ -3783,8 +3783,8 @@ endpoint_tests()
                # broadcast IP: no packet for this address will be received on ns1
                pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
                pm_nl_add_endpoint $ns1 10.0.1.1 id 42 flags signal
-               test_linkfail=4 speed=5 \
-                       run_tests $ns1 $ns2 10.0.1.1 &
+               { test_linkfail=4 speed=5 \
+                       run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
 
                wait_mpj $ns2
@@ -3856,8 +3856,8 @@ endpoint_tests()
                # broadcast IP: no packet for this address will be received on ns1
                pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
                pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
-               test_linkfail=4 speed=20 \
-                       run_tests $ns1 $ns2 10.0.1.1 &
+               { test_linkfail=4 speed=20 \
+                       run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
 
                wait_attempt_fail $ns2