[PATCH 5.10 42/55] selftests: forwarding: fix learning_test when h1 supports IFF_UNICAST_FLT

From: Greg Kroah-Hartman
Date: Mon Jul 11 2022 - 05:22:50 EST

From: Vladimir Oltean <vladimir.oltean@xxxxxxx>

[ 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

Fixes: d4deb01467ec ("selftests: forwarding: Add a test for FDB learning")
Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Reviewed-by: Ido Schimmel <idosch@xxxxxxxxxx>
Tested-by: Ido Schimmel <idosch@xxxxxxxxxx>
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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 094a1104e49d..fbda7603f3b3 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -1063,6 +1063,7 @@ 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
@@ -1112,6 +1113,7 @@ 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