Messages in this thread | | | Date | Fri, 9 Sep 2016 12:04:50 +0100 | From | Mark Rutland <> | Subject | Re: [RFCv4 5/7] drivers/perf: arm_pmu: expose a cpumask in sysfs |
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On Fri, Sep 09, 2016 at 11:24:43AM +0100, Will Deacon wrote: > On Thu, Sep 08, 2016 at 11:21:50AM +0100, Mark Rutland wrote: > > +static ssize_t armpmu_cpumask_show(struct device *dev, > > + struct device_attribute *attr, char *buf) > > +{ > > + struct arm_pmu *armpmu = to_arm_pmu(dev_get_drvdata(dev)); > > + return cpumap_print_to_pagebuf(true, buf, &armpmu->supported_cpus); > > +} > > + > > +static struct device_attribute armpmu_cpumask_attr = > > + __ATTR(cpus, S_IRUGO, armpmu_cpumask_show, NULL); > > You can use the DEVICE_ATTR macro for this.
Ok. I've made use of this locally.
I'll send an updated version of the patches shortly, once I've given this a spin on HW
Mark.
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