[Devel] [PATCH vz10 1/4] selftests: net: forwarding: cleanup veth peers created via NUM_NETIFS

[Aleksei Oladko]

Some net/forwarding kselftests set NUM_NETIFS, causing lib.sh to create
the requested number of veth peer interfaces.

These interfaces are not removed when the tests finish, leaving stale
veth devices in the system. This can cause subsequent tests to fail,
for example min_max_mtu.sh.

Ensure that veth peers created via NUM_NETIFS are properly removed at
the end of the tests to avoid interference between test runs.

https://virtuozzo.atlassian.net/browse/VSTOR-121804

Signed-off-by: Aleksei Oladko <aleksey.oladko at virtuozzo.com>
---
 tools/testing/selftests/net/forwarding/lib.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 9f7f5b7ab18c..a5264da9f949 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -793,6 +793,10 @@ vrf_cleanup()
 	ip -6 rule del pref 32765
 	ip -4 rule add pref 0 table local
 	ip -4 rule del pref 32765
+
+	for ((i = 1; i <= NUM_NETIFS; i=$i+2)); do
+		ip link delete dev ${NETIFS[p$i]}
+	done
 }
 
 __last_tb_id=0
-- 
2.43.0