make -C tools/testing/selftests TARGETS=drivers/net/netdevsim TEST_PROGS=ppeer.sh TEST_GEN_PROGS="" run_tests make: Entering directory '/home/virtme/testing-13/tools/testing/selftests' make[1]: Entering directory '/home/virtme/testing-13/tools/testing/selftests/drivers/net/netdevsim' make[1]: Nothing to be done for 'all'. make[1]: Leaving directory '/home/virtme/testing-13/tools/testing/selftests/drivers/net/netdevsim' make[1]: Entering directory '/home/virtme/testing-13/tools/testing/selftests/drivers/net/netdevsim' TAP version 13 1..1 # timeout set to 1200 # selftests: drivers/net/netdevsim: peer.sh [ 478.247538] netdevsim netdevsim386 eni386np1: renamed from eth0 [ 478.348592] netdevsim netdevsim541 eni541np1: renamed from eth1 [ 478.694636] Could not find device with ifindex 2000 in netnsfd 11 [ 478.695314] Could not find netns with fd: 2000 [ 478.695772] Cannot link a netdevsim to itself [ 478.696254] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint). ok 1 selftests: drivers/net/netdevsim: peer.sh make[1]: Leaving directory '/home/virtme/testing-13/tools/testing/selftests/drivers/net/netdevsim' make: Leaving directory '/home/virtme/testing-13/tools/testing/selftests' xx__-> echo $? 0 xx__->