trace_softirqs_on   17 include/linux/irqflags.h   extern void trace_softirqs_on(unsigned long ip);
trace_softirqs_on  128 kernel/softirq.c 		trace_softirqs_on((unsigned long)__builtin_return_address(0));
trace_softirqs_on  144 kernel/softirq.c 		trace_softirqs_on(ip);