make -C tools/testing/selftests TARGETS="drivers/net" TEST_PROGS=netpoll_bbasic.py TEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing-22/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-22/tools/testing/selftests/drivers/net'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-22/tools/testing/selftests/drivers/net'
make[1]: Entering directory '/home/virtme/testing-22/tools/testing/selftests/net/lib'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-22/tools/testing/selftests/net/lib'
make[1]: Entering directory '/home/virtme/testing-22/tools/testing/selftests/drivers/net'
TAP version 13
1..1
# overriding timeout to 360
# selftests: drivers/net: netpoll_basic.py
# Traceback (most recent call last):
#   File "/home/virtme/testing-22/tools/testing/selftests/drivers/net/./netpoll_basic.py", line 231, in <module>
#     main()
#   File "/home/virtme/testing-22/tools/testing/selftests/drivers/net/./netpoll_basic.py", line 219, in main
#     with NetDrvEpEnv(__file__, nsim_test=True) as cfg:
#   File "/home/virtme/testing-22/tools/testing/selftests/drivers/net/lib/py/env.py", line 122, in __init__
#     raise KsftXfailEx("Test only works on netdevsim")
# net.lib.py.ksft.KsftXfailEx: Test only works on netdevsim
not ok 1 selftests: drivers/net: netpoll_basic.py # exit=1
make[1]: Leaving directory '/home/virtme/testing-22/tools/testing/selftests/drivers/net'
make: Leaving directory '/home/virtme/testing-22/tools/testing/selftests'
xx__-> echo $?
0
xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
xx__->