netdev - [PATCH net] selftests: forwarding: vxlan_bridge

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Date:   Fri, 19 Mar 2021 22:33:14 +0800
From:   Hangbin Liu <liuhangbin@...il.com>
To:     netdev@...r.kernel.org
Cc:     David Miller <davem@...emloft.net>,
        Petr Machata <petrm@...lanox.com>,
        Ido Schimmel <idosch@...lanox.com>,
        Guillaume Nault <gnault@...hat.com>,
        Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCH net] selftests: forwarding: vxlan_bridge_1d: Fix vxlan ecn decapsulate value

The ECN bit defines ECT(1) = 1, ECT(0) = 2. So inner 0x02 + outer 0x01
should be inner ECT(0) + outer ECT(1). Based on the description of
__INET_ECN_decapsulate, the final decapsulate value should be
ECT(1). So fix the test expect value to 0x01.

Before the fix:
TEST: VXLAN: ECN decap: 01/02->0x02                                 [FAIL]
        Expected to capture 10 packets, got 0.

After the fix:
TEST: VXLAN: ECN decap: 01/02->0x01                                 [ OK ]

Fixes: a0b61f3d8ebf ("selftests: forwarding: vxlan_bridge_1d: Add an ECN decap test")
Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
---
 tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh
index ce6bea9675c0..0ccb1dda099a 100755
--- a/tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh
@@ -658,7 +658,7 @@ test_ecn_decap()
 	# In accordance with INET_ECN_decapsulate()
 	__test_ecn_decap 00 00 0x00
 	__test_ecn_decap 01 01 0x01
-	__test_ecn_decap 02 01 0x02
+	__test_ecn_decap 02 01 0x01
 	__test_ecn_decap 01 03 0x03
 	__test_ecn_decap 02 03 0x03
 	test_ecn_decap_error
-- 
2.26.2