Symbol: __encap_ipv4
tools/testing/selftests/bpf/progs/test_tc_tunnel.c
252
return __encap_ipv4(skb, encap_proto, l2_proto, 0);
tools/testing/selftests/bpf/progs/test_tc_tunnel.c
493
return __encap_ipv4(skb, IPPROTO_UDP,