stop_critical_timings 72 include/linux/irqflags.h # define stop_critical_timings() do { } while (0) stop_critical_timings 449 kernel/trace/trace_irqsoff.c void stop_critical_timings(void) stop_critical_timings 15 tools/include/linux/irqflags.h # define stop_critical_timings() do { } while (0)