is_attr_for_this_pmu
return is_attr_for_this_pmu(kobj, attr) ? attr->mode : 0;
return (cpu >= 0) && is_attr_for_this_pmu(kobj, attr) && cpu_has(&cpu_data(cpu), X86_FEATURE_RTM) ? attr->mode : 0;
if (!is_attr_for_this_pmu(kobj, attr))