trigger_process_regex
extern int trigger_process_regex(struct trace_event_file *file, char *buff);
if (trigger_process_regex(file, buf) < 0)
if (trigger_process_regex(file, buf) < 0)
else if (trigger_process_regex(file, buf) < 0)
ret = trigger_process_regex(file, bootup_triggers[i].trigger);
ret = trigger_process_regex(event_file, buf);