irqsoff_trace_open 654 kernel/trace/trace_irqsoff.c .open = irqsoff_trace_open, irqsoff_trace_open 704 kernel/trace/trace_irqsoff.c .open = irqsoff_trace_open, irqsoff_trace_open 739 kernel/trace/trace_irqsoff.c .open = irqsoff_trace_open,