diff options
Diffstat (limited to 'tools/testing/selftests/net/reuseport_bpf_cpu.c')
| -rw-r--r-- | tools/testing/selftests/net/reuseport_bpf_cpu.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/reuseport_bpf_cpu.c b/tools/testing/selftests/net/reuseport_bpf_cpu.c index 2d646174729f..ddfe92f6597a 100644 --- a/tools/testing/selftests/net/reuseport_bpf_cpu.c +++ b/tools/testing/selftests/net/reuseport_bpf_cpu.c @@ -228,10 +228,20 @@ static void test(int *rcv_fd, int len, int family, int proto) close(rcv_fd[cpu]); } +static void setup_netns(void) +{ + if (unshare(CLONE_NEWNET)) + error(1, errno, "failed to unshare netns"); + if (system("ip link set lo up")) + error(1, 0, "failed to bring up lo interface in netns"); +} + int main(void) { int *rcv_fd, cpus; + setup_netns(); + cpus = sysconf(_SC_NPROCESSORS_ONLN); if (cpus <= 0) error(1, errno, "failed counting cpus"); |