kernel/bpf/verifier.c

5870 	bool tail_call_reachable = false;
5965 			tail_call_reachable = true;
5980 	if (tail_call_reachable)
5986 			subprog[ret_prog[j]].tail_call_reachable = true;
5988 	if (subprog[0].tail_call_reachable)
5989 		env->prog->aux->tail_call_reachable = true;
19225 		func[i]->aux->tail_call_reachable = env->subprog_info[i].tail_call_reachable;
19378 	if (env->subprog_cnt > 1 && env->prog->aux->tail_call_reachable) {
21174 	if (tgt_prog && tgt_prog->aux->tail_call_reachable)