make -C tools/testing/selftests TARGETS=net TEST_PROGS=tap TEST_GEN_PROGS=="" run_tests
make: Entering directory '/home/virtme/testing-1/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-1/tools/testing/selftests/net'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-1/tools/testing/selftests/net'
make[1]: Entering directory '/home/virtme/testing-1/tools/testing/selftests/net'
TAP version 13
1..1
# timeout set to 3600
# selftests: net: tap
[ 1277.671749] xdummy0: entered promiscuous mode
# TAP version 13
# 1..3
# # Starting 3 tests from 1[ 1277.683358] xdummy0: left promiscuous mode
 test cases.
# #  RUN           tap.test_packet_valid_udp_gso ...
# #            OK [ 1277.703006] xdummy0: entered promiscuous mode
 tap.test_packet_valid_udp_gso
# ok 1 tap.test_packet_valid_udp_gso
# #  RUN           tap.test_packet_valid_udp_csum ...
[ 1277.713374] xdummy0: left promiscuous mode
# #            O[ 1277.748825] xdummy0: entered promiscuous mode
K  tap.test_packet_valid_udp_csum
# ok 2 tap.test_packet_valid_udp_csum
# #  RUN           tap.test_packet_crash_tap_invalid_eth_proto ...
[ 1277.759398] xdummy0: left promiscuous mode
# #            OK  tap.test_packet_crash_tap_invalid_eth_proto
# ok 3 tap.test_packet_crash_tap_invalid_eth_proto
# # PASSED: 3 / 3 tests passed.
# # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0
ok 1 selftests: net: tap
make[1]: Leaving directory '/home/virtme/testing-1/tools/testing/selftests/net'
make: Leaving directory '/home/virtme/testing-1/tools/testing/selftests'
xx__-> echo $?
0
xx__->