netdev - [PATCH net] selftests: rtnetlink.sh: remove esp4

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Message-ID: <238b803af900dfc5f87f6ddc03805cc42da2ca35.1753332902.git.xmu@redhat.com>
Date: Thu, 24 Jul 2025 12:55:02 +0800
From: Xiumei Mu <xmu@...hat.com>
To: "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>
Cc: Simon Horman <horms@...nel.org>,
	netdev@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Long Xin <lxin@...hat.com>,
	Sabrina Dubroca <sd@...asysnail.net>
Subject: [PATCH net] selftests: rtnetlink.sh: remove esp4_offload after test

The esp4_offload module, loaded during IPsec offload tests, should
be reset to its default settings after testing.
Otherwise, leaving it enabled could unintentionally affect subsequence
test cases by keeping offload active.

Fixes: 2766a11161cc ("selftests: rtnetlink: add ipsec offload API test")
Signed-off-by: Xiumei Mu <xmu@...hat.com>
---
 tools/testing/selftests/net/rtnetlink.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index 2e8243a65b50..5cc1b5340a1a 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -673,6 +673,11 @@ kci_test_ipsec_offload()
 	sysfsf=$sysfsd/ipsec
 	sysfsnet=/sys/bus/netdevsim/devices/netdevsim0/net/
 	probed=false
+	esp4_offload_probed_default=false
+
+	if lsmod | grep -q esp4_offload; then
+		esp4_offload_probed_default=true
+	fi
 
 	if ! mount | grep -q debugfs; then
 		mount -t debugfs none /sys/kernel/debug/ &> /dev/null
@@ -766,6 +771,7 @@ EOF
 	fi
 
 	# clean up any leftovers
+	[ $esp4_offload_probed_default == false ] && rmmod esp4_offload
 	echo 0 > /sys/bus/netdevsim/del_device
 	$probed && rmmod netdevsim
 
-- 
2.50.1