intel_pmu_has_bts_period 3824 arch/x86/events/intel/core.c return intel_pmu_has_bts_period(event, value) ? -EINVAL : 0; intel_pmu_has_bts_period 943 arch/x86/events/perf_event.h return intel_pmu_has_bts_period(event, hwc->sample_period);