linux-kernel - [PATCH net 5/8] selftests: mptcp: diag: skip if MPTCP is not supported

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Message-Id: <20230528-upstream-net-20230528-mptcp-selftests-support-old-kernels-part-1-v1-5-a32d85577fc6@tessares.net>
Date:   Sun, 28 May 2023 19:35:30 +0200
From:   Matthieu Baerts <matthieu.baerts@...sares.net>
To:     mptcp@...ts.linux.dev, Mat Martineau <martineau@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Shuah Khan <shuah@...nel.org>,
        Christoph Paasch <cpaasch@...le.com>,
        Florian Westphal <fw@...len.de>,
        Davide Caratti <dcaratti@...hat.com>,
        Kishen Maloor <kishen.maloor@...el.com>
Cc:     netdev@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Matthieu Baerts <matthieu.baerts@...sares.net>,
        stable@...r.kernel.org
Subject: [PATCH net 5/8] selftests: mptcp: diag: skip if MPTCP is not
 supported

Selftests are supposed to run on any kernels, including the old ones not
supporting MPTCP.

A new check is then added to make sure MPTCP is supported. If not, the
test stops and is marked as "skipped".

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: df62f2ec3df6 ("selftests/mptcp: add diag interface tests")
Cc: stable@...r.kernel.org
Acked-by: Paolo Abeni <pabeni@...hat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@...sares.net>
---
 tools/testing/selftests/net/mptcp/diag.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/net/mptcp/diag.sh b/tools/testing/selftests/net/mptcp/diag.sh
index ef628b16fe9b..4eacdb1ab962 100755
--- a/tools/testing/selftests/net/mptcp/diag.sh
+++ b/tools/testing/selftests/net/mptcp/diag.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
+. "$(dirname "${0}")/mptcp_lib.sh"
+
 sec=$(date +%s)
 rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
 ns="ns1-$rndh"
@@ -31,6 +33,8 @@ cleanup()
 	ip netns del $ns
 }
 
+mptcp_lib_check_mptcp
+
 ip -Version > /dev/null 2>&1
 if [ $? -ne 0 ];then
 	echo "SKIP: Could not run test without ip tool"

-- 
2.39.2