[net PATCH 2/2] selftests: forwarding: local_termination: sleep before starting tests

From: Christian Marangi
Date: Sat Nov 30 2024 - 06:34:09 EST


It seems real hardware requires some time to stabilize and actually
works after an 'ip link up'. This is not the case for veth as everything
is simulated but this is a requirement for real hardware to permit
receiving packet.

Without this the very fist test for unicast always fails on real
hardware. With the introduced sleep of one second after mc_route_prepare,
the test corretly pass as the packet can correctly be delivered.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: 90b9566aa5cd ("selftests: forwarding: add a test for local_termination.sh")
Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
---
tools/testing/selftests/net/forwarding/local_termination.sh | 2 ++
1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/net/forwarding/local_termination.sh b/tools/testing/selftests/net/forwarding/local_termination.sh
index c35548767756..8923c741ce4b 100755
--- a/tools/testing/selftests/net/forwarding/local_termination.sh
+++ b/tools/testing/selftests/net/forwarding/local_termination.sh
@@ -182,6 +182,8 @@ run_test()
mc_route_prepare $send_if_name
mc_route_prepare $rcv_if_name

+ sleep 1
+
send_uc_ipv4 $send_if_name $rcv_dmac
send_uc_ipv4 $send_if_name $MACVLAN_ADDR
send_uc_ipv4 $send_if_name $UNKNOWN_UC_ADDR1
--
2.45.2