BPF_FUNC_tcp_check_syncookie 6215 net/core/filter.c case BPF_FUNC_tcp_check_syncookie: BPF_FUNC_tcp_check_syncookie 6258 net/core/filter.c case BPF_FUNC_tcp_check_syncookie: BPF_FUNC_tcp_check_syncookie 207 tools/testing/selftests/bpf/bpf_helpers.h (void *) BPF_FUNC_tcp_check_syncookie;