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    SubjectRe: [PATCH 18/36] cpuidle: Annotate poll_idle()
    On Wed, Jun 8, 2022 at 4:46 PM Peter Zijlstra <peterz@infradead.org> wrote:
    >
    > The __cpuidle functions will become a noinstr class, as such they need
    > explicit annotations.
    >
    > Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>

    Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

    > ---
    > drivers/cpuidle/poll_state.c | 6 +++++-
    > 1 file changed, 5 insertions(+), 1 deletion(-)
    >
    > --- a/drivers/cpuidle/poll_state.c
    > +++ b/drivers/cpuidle/poll_state.c
    > @@ -13,7 +13,10 @@
    > static int __cpuidle poll_idle(struct cpuidle_device *dev,
    > struct cpuidle_driver *drv, int index)
    > {
    > - u64 time_start = local_clock();
    > + u64 time_start;
    > +
    > + instrumentation_begin();
    > + time_start = local_clock();
    >
    > dev->poll_time_limit = false;
    >
    > @@ -39,6 +42,7 @@ static int __cpuidle poll_idle(struct cp
    > raw_local_irq_disable();
    >
    > current_clr_polling();
    > + instrumentation_end();
    >
    > return index;
    > }
    >
    >

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