[PATCH 5.15 211/230] selftests: forwarding: fix learning_test when h1 supports IFF_UNICAST_FLT

Greg Kroah-Hartman
2022-07-11T10:03:42Z

From: Vladimir Oltean <vladimir.oltean@nxp.com>

[ Upstream commit 1a635d3e1c80626237fdae47a5545b6655d8d81c ]

The first host interface has by default no interest in receiving packets
MAC DA de:ad:be:ef:13:37, so it might drop them before they hit the tc
filter and this might confuse the selftest.

Enable promiscuous mode such that the filter properly counts received
packets.

Fixes: d4deb01467ec ("selftests: forwarding: Add a test for FDB learning")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/net/forwarding/lib.sh | 2 ++
1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 8a9c55fe841a..0db6ea8d7e05 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -1149,6 +1149,7 @@ learning_test()
# FDB entry was installed.
bridge link set dev $br_port1 flood off

+ ip link set $host1_if promisc on
tc qdisc add dev $host1_if ingress
tc filter add dev $host1_if ingress protocol ip pref 1 handle 101 \
flower dst_mac $mac action drop
@@ -1198,6 +1199,7 @@ learning_test()

tc filter del dev $host1_if ingress protocol ip pref 1 handle 101 flower
tc qdisc del dev $host1_if ingress
+ ip link set $host1_if promisc off

bridge link set dev $br_port1 flood on

--
2.35.1