make -C tools/testing/selftests TARGETS="net" TEST_PROGS=reuseaddr_conflicct 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: reuseaddr_conflict # 0.00 [+0.00] Opening 127.0.0.1:9999 # 0.00 [+0.00] Opening INADDR_ANY:9999 # 0.00 [+0.00] bind: Address already in use # 0.00 [+0.00] Opening in6addr_any:9999 # 0.00 [+0.00] Opening INADDR_ANY:9999 # 0.01 [+0.00] bind: Address already in use # 0.01 [+0.00] Opening INADDR_ANY:9999 after closing ipv6 socket # 0.01 [+0.00] bind: Address already in use # 0.01 [+0.00] Success ok 1 selftests: net: reuseaddr_conflict 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__->