netdev - [PATCH net-next 3/4] selftests: test_vxlan_fdb

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Message-ID: <1fc265cc6b129698b00cf1e70a66b9939ed72acd.1738949252.git.petrm@nvidia.com>
Date: Fri, 7 Feb 2025 18:34:23 +0100
From: Petr Machata <petrm@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
	<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
	<pabeni@...hat.com>, <netdev@...r.kernel.org>
CC: Ido Schimmel <idosch@...dia.com>, Petr Machata <petrm@...dia.com>,
	<mlxsw@...dia.com>, Simon Horman <horms@...nel.org>, Shuah Khan
	<shuah@...nel.org>, <linux-kselftest@...r.kernel.org>
Subject: [PATCH net-next 3/4] selftests: test_vxlan_fdb_changelink: Convert to lib.sh

Instead of inlining equivalents, use lib.sh-provided primitives.
Use defer to manage vx lifetime.

This will make it easier to extend the test in the next patch.

Signed-off-by: Petr Machata <petrm@...dia.com>
Reviewed-by: Ido Schimmel <idosch@...dia.com>
---

Notes:
CC: Simon Horman <horms@...nel.org>
CC: Shuah Khan <shuah@...nel.org>
CC: linux-kselftest@...r.kernel.org

 .../net/test_vxlan_fdb_changelink.sh          | 39 ++++++++++++-------
 1 file changed, 24 insertions(+), 15 deletions(-)

diff --git a/tools/testing/selftests/net/test_vxlan_fdb_changelink.sh b/tools/testing/selftests/net/test_vxlan_fdb_changelink.sh
index 2d442cdab11e..6f2bca4b346c 100755
--- a/tools/testing/selftests/net/test_vxlan_fdb_changelink.sh
+++ b/tools/testing/selftests/net/test_vxlan_fdb_changelink.sh
@@ -1,29 +1,38 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
-# Check FDB default-remote handling across "ip link set".
+ALL_TESTS="
+	test_set_remote
+"
+source lib.sh
 
 check_remotes()
 {
 	local what=$1; shift
 	local N=$(bridge fdb sh dev vx | grep 00:00:00:00:00:00 | wc -l)
 
-	echo -ne "expected two remotes after $what\t"
-	if [[ $N != 2 ]]; then
-		echo "[FAIL]"
-		EXIT_STATUS=1
-	else
-		echo "[ OK ]"
-	fi
+	((N == 2))
+	check_err $? "expected 2 remotes after $what, got $N"
 }
 
-ip link add name vx up type vxlan id 2000 dstport 4789
-bridge fdb ap dev vx 00:00:00:00:00:00 dst 192.0.2.20 self permanent
-bridge fdb ap dev vx 00:00:00:00:00:00 dst 192.0.2.30 self permanent
-check_remotes "fdb append"
+# Check FDB default-remote handling across "ip link set".
+test_set_remote()
+{
+	RET=0
 
-ip link set dev vx type vxlan remote 192.0.2.30
-check_remotes "link set"
+	ip_link_add vx up type vxlan id 2000 dstport 4789
+	bridge fdb ap dev vx 00:00:00:00:00:00 dst 192.0.2.20 self permanent
+	bridge fdb ap dev vx 00:00:00:00:00:00 dst 192.0.2.30 self permanent
+	check_remotes "fdb append"
+
+	ip link set dev vx type vxlan remote 192.0.2.30
+	check_remotes "link set"
+
+	log_test 'FDB default-remote handling across "ip link set"'
+}
+
+trap defer_scopes_cleanup EXIT
+
+tests_run
 
-ip link del dev vx
 exit $EXIT_STATUS
-- 
2.47.0