netdev - [PATCH net 04/17] selftests: forwarding: bridge_mdb

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Message-ID: <20230802075118.409395-5-idosch@nvidia.com>
Date: Wed, 2 Aug 2023 10:51:05 +0300
From: Ido Schimmel <idosch@...dia.com>
To: <netdev@...r.kernel.org>
CC: <davem@...emloft.net>, <kuba@...nel.org>, <pabeni@...hat.com>,
	<edumazet@...gle.com>, <petrm@...dia.com>, <razor@...ckwall.org>,
	<mirsad.todorovac@....unizg.hr>, Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net 04/17] selftests: forwarding: bridge_mdb_max: Check iproute2 version

The selftest relies on iproute2 changes present in version 6.3, but the
test does not check for it, resulting in errors:

 # ./bridge_mdb_max.sh
  INFO: 802.1d tests
  TEST: cfg4: port: ngroups reporting                                 [FAIL]
          Number of groups was null, now is null, but 5 expected
  TEST: ctl4: port: ngroups reporting                                 [FAIL]
          Number of groups was null, now is null, but 5 expected
  TEST: cfg6: port: ngroups reporting                                 [FAIL]
          Number of groups was null, now is null, but 5 expected
  [...]

Fix by skipping the test if iproute2 is too old.

Fixes: 3446dcd7df05 ("selftests: forwarding: bridge_mdb_max: Add a new selftest")
Reported-by: Mirsad Todorovac <mirsad.todorovac@....unizg.hr>
Closes: https://lore.kernel.org/netdev/6b04b2ba-2372-6f6b-3ac8-b7cba1cfae83@alu.unizg.hr/
Signed-off-by: Ido Schimmel <idosch@...dia.com>
Reviewed-by: Petr Machata <petrm@...dia.com>
Tested-by: Mirsad Todorovac <mirsad.todorovac@....unizg.hr>
---
 tools/testing/selftests/net/forwarding/bridge_mdb_max.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/testing/selftests/net/forwarding/bridge_mdb_max.sh b/tools/testing/selftests/net/forwarding/bridge_mdb_max.sh
index ae255b662ba3..fa762b716288 100755
--- a/tools/testing/selftests/net/forwarding/bridge_mdb_max.sh
+++ b/tools/testing/selftests/net/forwarding/bridge_mdb_max.sh
@@ -1328,6 +1328,11 @@ test_8021qvs()
 	switch_destroy
 }
 
+if ! bridge link help 2>&1 | grep -q "mcast_max_groups"; then
+	echo "SKIP: iproute2 too old, missing bridge \"mcast_max_groups\" support"
+	exit $ksft_skip
+fi
+
 trap cleanup EXIT
 
 setup_prepare
-- 
2.40.1