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Add a test for the issue that was fixed in "team: avoid NETDEV_CHANGEMTU
event when unregistering slave".
The test hangs due to a reference count leak without the fix:
# make -C tools/testing/selftests TARGETS="drivers/net/team" TEST_PROGS=refleak.sh TEST_GEN_PROGS="" run_tests
[...]
TAP version 13
1..1
# timeout set to 45
# selftests: drivers/net/team: refleak.sh
[ 50.681299][ T496] unregister_netdevice: waiting for dummy1 to become free. Usage count = 3
[ 71.185325][ T496] unregister_netdevice: waiting for dummy1 to become free. Usage count = 3
And passes with the fix:
# make -C tools/testing/selftests TARGETS="drivers/net/team" TEST_PROGS=refleak.sh TEST_GEN_PROGS="" run_tests
[...]
TAP version 13
1..1
# timeout set to 45
# selftests: drivers/net/team: refleak.sh
ok 1 selftests: drivers/net/team: refleak.sh
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260224125709.317574-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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