P4_PEBS_METRIC__none 548 arch/x86/events/intel/p4.c P4_PEBS_METRIC__none), P4_PEBS_METRIC__none 550 arch/x86/events/intel/p4.c P4_PEBS_METRIC__none), P4_PEBS_METRIC__none 940 arch/x86/events/intel/p4.c if (idx == P4_PEBS_METRIC__none)