trace_pid_list_next
return trace_pid_list_next(pid_list, 0, pid);
int trace_pid_list_next(struct trace_pid_list *pid_list, unsigned int pid,
ret = trace_pid_list_next(filtered_pids, pid + 1, &pid);
if (trace_pid_list_next(pid_list, pid, &next) < 0)