netdev - [PATCH net-next 11/15] selftests: mptcp: join: userspace: wait for new events

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Message-Id: <20260203-net-next-mptcp-misc-feat-6-20-v1-11-31ec8bfc56d1@kernel.org>
Date: Tue, 03 Feb 2026 19:41:27 +0100
From: "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
To: Mat Martineau <martineau@...nel.org>, Geliang Tang <geliang@...nel.org>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Simon Horman <horms@...nel.org>, Shuah Khan <shuah@...nel.org>
Cc: netdev@...r.kernel.org, mptcp@...ts.linux.dev, 
 linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
Subject: [PATCH net-next 11/15] selftests: mptcp: join: userspace: wait for
 new events

Instead of waiting for a random amount of time (1 second), wait for an
event to be received on the other side.

To do that, when an address is announced (userspace_pm_add_addr), the
ANNOUNCED is expected. When a new subflow is created
(userspace_pm_add_sf), the SUB_ESTABLISHED event is expected.

With this, the tests can finish quicker.

Reviewed-by: Geliang Tang <geliang@...nel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
---
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 6ab568d6b856..4977e6ff17b4 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -3716,7 +3716,6 @@ userspace_pm_add_addr()
 	tk=$(mptcp_lib_evts_get_info token "$evts")
 
 	ip netns exec $1 ./pm_nl_ctl ann $2 token $tk id $3
-	sleep 1
 }
 
 # $1: ns ; $2: id
@@ -3747,7 +3746,6 @@ userspace_pm_add_sf()
 
 	ip netns exec $1 ./pm_nl_ctl csf lip $2 lid $3 \
 				rip $da rport $dp token $tk
-	sleep 1
 }
 
 # $1: ns ; $2: addr $3: event type
@@ -3999,7 +3997,9 @@ userspace_tests()
 		local tests_pid=$!
 		wait_event ns1 MPTCP_LIB_EVENT_ESTABLISHED 1
 		userspace_pm_add_addr $ns1 10.0.2.1 10
+		wait_event ns2 MPTCP_LIB_EVENT_ANNOUNCED 1
 		userspace_pm_add_addr $ns1 10.0.3.1 20
+		wait_event ns2 MPTCP_LIB_EVENT_ANNOUNCED 2
 		chk_join_nr 2 2 2
 		chk_add_nr 2 2
 		chk_mptcp_info subflows 2 subflows 2
@@ -4032,6 +4032,7 @@ userspace_tests()
 		local tests_pid=$!
 		wait_event ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
 		userspace_pm_add_sf $ns2 10.0.3.2 20
+		wait_event ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 1
 		chk_join_nr 1 1 1
 		chk_mptcp_info subflows 1 subflows 1
 		chk_subflows_total 2 2
@@ -4062,6 +4063,7 @@ userspace_tests()
 		chk_mptcp_info subflows 0 subflows 0
 		chk_subflows_total 1 1
 		userspace_pm_add_sf $ns2 10.0.3.2 0
+		wait_event ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 1
 		userspace_pm_chk_dump_addr "${ns2}" \
 			"id 0 flags subflow 10.0.3.2" "id 0 subflow"
 		chk_join_nr 1 1 1
@@ -4081,6 +4083,7 @@ userspace_tests()
 		local tests_pid=$!
 		wait_event ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
 		userspace_pm_add_sf $ns2 10.0.3.2 20
+		wait_event ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 1
 		chk_join_nr 1 1 1
 		chk_mptcp_info subflows 1 subflows 1
 		chk_subflows_total 2 2
@@ -4105,6 +4108,7 @@ userspace_tests()
 		local tests_pid=$!
 		wait_event ns1 MPTCP_LIB_EVENT_ESTABLISHED 1
 		userspace_pm_add_addr $ns1 10.0.2.1 10
+		wait_event ns2 MPTCP_LIB_EVENT_ANNOUNCED 1
 		chk_join_nr 1 1 1
 		chk_add_nr 1 1
 		chk_mptcp_info subflows 1 subflows 1
@@ -4131,6 +4135,7 @@ userspace_tests()
 		local tests_pid=$!
 		wait_event ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
 		userspace_pm_add_sf $ns2 10.0.3.2 20
+		wait_event ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 1
 		chk_mptcp_info subflows 1 subflows 1
 		chk_subflows_total 2 2
 

-- 
2.51.0