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    SubjectRe: [PATCH v3 9/10] cpufreq: sched: Re-introduce cpufreq_update_util()
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    On 03/04/2016 05:30 AM, Rafael J. Wysocki wrote:
    > +void cpufreq_update_util(u64 time, unsigned long util, unsigned long max)
    > +{
    > + struct freq_update_hook *hook;
    > +
    > +#ifdef CONFIG_LOCKDEP
    > + WARN_ON(debug_locks && !rcu_read_lock_sched_held());
    > +#endif
    > +
    > + hook = rcu_dereference_sched(*this_cpu_ptr(&cpufreq_freq_update_hook));
    > + /*
    > + * If this isn't inside of an RCU-sched read-side critical section, hook
    > + * may become NULL after the check below.
    > + */
    > + if (hook) {
    > + if (hook->update_util)
    > + hook->update_util(hook, time, util, max);
    > + else
    > + hook->func(hook, time);
    > + }

    Is it worth having two hook types?

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