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    SubjectRE: [PATCH v1 3/3] ARM: tegra: cpuidle driver for tegra
    Date
    On Thu, Jan 26, 2012 at 21:52:03, Peter De Schrijver wrote:
    [...]
    > +static int tegra_idle_enter_lp3(struct cpuidle_device *dev,
    > + struct cpuidle_driver *drv, int index)
    > +{
    > + ktime_t enter, exit;
    > + s64 us;
    > +
    > + local_irq_disable();
    > + local_fiq_disable();
    > +
    > + enter = ktime_get();
    > +
    > + tegra_cpu_wfi();
    > +
    > + exit = ktime_sub(ktime_get(), enter);
    > + us = ktime_to_us(exit);
    > +
    > + local_fiq_enable();
    > + local_irq_enable();
    > +
    > + dev->last_residency = us;
    > +
    > + return index;
    > +}

    You can probably drop local_irq_disable() and local_irq_enable().


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