> void tick_nohz_irq_exit(void)
> {
> struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched);
> + struct clock_event_device *dev =
> + __get_cpu_var(tick_cpu_device).evtdev;
> +
> + /* Has the tick been initialized yet? */
> + if (unlikely(!dev || dev->mode == CLOCK_EVT_MODE_UNUSED))
> + return;
Could we have something in the "struct tick_sched" to tell us whether
it has been set up? Rather than this somewhat convoluted digging
around in the clock_event_device innards?
> + if (unlikely(!dev || dev->mode == CLOCK_EVT_MODE_UNUSED))
> + return;
Ditto here.
-Tony
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