make -C tools/testing/selftests TARGETS="net/t<TEST_PROGS=seq-ext_ipv4 TEST_GEN_PROGS="" run_tests 
make: Entering directory '/srv/vmksft/testing/wt-5/tools/testing/selftests'
make[1]: Nothing to be done for 'all'.
# timeout set to 120
# selftests: net/tcp_ao: seq-ext_ipv4
# 1..8
# # 9528[lib/setup.c:250] rand seed 1776298500
# TAP version 13
# not ok 1 # error 9530[seq-ext.c:187] setsockopt(TCP_AO_ADD_KEY): No such file or directory
# not ok 2 # error 9528[seq-ext.c:78] setsockopt(TCP_AO_ADD_KEY): No such file or directory
# ok 3 No unexpected trace events during the test run
# # Planned tests != run tests (8 != 3)
# # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:2
ok 1 1 selftests: net/tcp_ao: seq-ext_ipv4
make: Leaving directory '/srv/vmksft/testing/wt-5/tools/testing/selftests'
xx__-> echo $?
0
xx__->