make -C tools/testing/selftests TARGETS=net TEST_PROGS=ip6_gre_headroom.shh TEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing-3/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
TAP version 13
1..1
# timeout set to 6000
# selftests: net: ip6_gre_headroom.sh
[  723.201536][ T3404] gre: GRE over IPv4 demultiplexor driver
[  723.220271][ T3404] ip6_gre: GRE over IPv6 tunneling driver
[  723.399479][ T1609] ip6_tunnel: er6 xmit: Local address not yet configured!
[  723.691353][   T50] ip6_tunnel: gt6 xmit: Local address not yet configured!
[  723.731315][   T11] ip6_tunnel: gt6 xmit: Local address not yet configured!
[  724.103501][ T1609] ip6_tunnel: er6 xmit: Local address not yet configured!
# TEST: ip6gretap headroom                                            [PASS]
# TEST: ip6erspan headroom                                            [PASS]
ok 1 selftests: net: ip6_gre_headroom.sh
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make: Leaving directory '/home/virtme/testing-3/tools/testing/selftests'
xx__-> echo $?
0
xx__->