TRACE_SOFTIRQ_ENTRY(9) IRQ TRACE_SOFTIRQ_ENTRY(9)NAMEtrace_softirq_entry - called immediately before the softirq handlerSYNOPSISvoid trace_softirq_entry(unsigned int vec_nr);ARGUMENTSvec_nr softirq vector numberDESCRIPTIONWhen used in combination with the softirq_exit tracepoint we can determine the softirq handler runtine.AUTHORSJason Baron <jbaron@redhat.com> Author. William Cohen <wcohen@redhat.com> Author.COPYRIGHTKernel Hackers Manual 3.10 June 2014 TRACE_SOFTIRQ_ENTRY(9)