linux-kernel - [PATCH net 6/8] selftests: mptcp: disable add_addr retrans in endpoint

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Message-Id: <20250815-net-mptcp-misc-fixes-6-17-rc2-v1-6-521fe9957892@kernel.org>
Date: Fri, 15 Aug 2025 19:28:24 +0200
From: "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
To: mptcp@...ts.linux.dev, 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>, 
 Jianguo Wu <wujianguo@...natelecom.cn>, Shuah Khan <shuah@...nel.org>, 
 Jonathan Corbet <corbet@....net>, zhenwei pi <pizhenwei@...edance.com>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, linux-doc@...r.kernel.org, 
 "Matthieu Baerts (NGI0)" <matttbe@...nel.org>, 
 Geliang Tang <geliang@...nel.org>
Subject: [PATCH net 6/8] selftests: mptcp: disable add_addr retrans in
 endpoint_tests

From: Geliang Tang <tanggeliang@...inos.cn>

To prevent test instability in the "delete re-add signal" test caused by
ADD_ADDR retransmissions, disable retransmissions for this test by setting
net.mptcp.add_addr_timeout to 0.

Suggested-by: Matthieu Baerts <matttbe@...nel.org>
Signed-off-by: Geliang Tang <tanggeliang@...inos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
---
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index b8af65373b3ada96472347171924ad3a6cf14777..82cae37d9c2026cc55466636d53a76f929a03452 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -3842,6 +3842,7 @@ endpoint_tests()
 	# remove and re-add
 	if reset_with_events "delete re-add signal" &&
 	   mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+		ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=0
 		pm_nl_set_limits $ns1 0 3
 		pm_nl_set_limits $ns2 3 3
 		pm_nl_add_endpoint $ns1 10.0.2.1 id 1 flags signal

-- 
2.50.0