Re: [PATCH 3/5] perf/arm-ccn: Fix CPU hotplug race avoidance

[Thomas Gleixner]

On Mon, 4 Feb 2019, Robin Murphy wrote:
>  	/* Pick one CPU which we will use to collect data from CCN... */
> -	cpumask_set_cpu(get_cpu(), &ccn->dt.cpu);
> +	cpus_read_lock();
> +	ccn->dt.cpu = smp_processor_id();

Again raw_smp_processor_id()

Thanks,

	tglx