make -C tools/testing/selftests TARGETS="net" TEST_PROGS=ip6_gre_headroom..sh 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: ip6_gre_headroom.sh
# 3.25 [+3.25] TEST: ip6gretap headroom                                            [PASS]
# 5.29 [+2.04] TEST: ip6erspan headroom                                            [PASS]
ok 1 selftests: net: ip6_gre_headroom.sh
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__->