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    SubjectRe: [PATCH v2 04/23] counter: Provide a wrapper to access device private data
    On Mon, Dec 27, 2021 at 10:45:07AM +0100, Uwe Kleine-König wrote:
    > For now this just wraps accessing struct counter_device::priv. However
    > this is about to change and converting drivers to this helper
    > individually makes fixing device lifetime issues result in easier to
    > review patches.
    >
    > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

    Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>

    > ---
    > drivers/counter/counter-core.c | 12 ++++++++++++
    > include/linux/counter.h | 2 ++
    > 2 files changed, 14 insertions(+)
    >
    > diff --git a/drivers/counter/counter-core.c b/drivers/counter/counter-core.c
    > index f053a43c6c04..00c41f28c101 100644
    > --- a/drivers/counter/counter-core.c
    > +++ b/drivers/counter/counter-core.c
    > @@ -45,6 +45,18 @@ static struct bus_type counter_bus_type = {
    >
    > static dev_t counter_devt;
    >
    > +/**
    > + * counter_priv - access counter device private data
    > + * @counter: counter device
    > + *
    > + * Get the counter device private data
    > + */
    > +void *counter_priv(const struct counter_device *const counter)
    > +{
    > + return counter->priv;
    > +}
    > +EXPORT_SYMBOL_GPL(counter_priv);
    > +
    > /**
    > * counter_register - register Counter to the system
    > * @counter: pointer to Counter to register
    > diff --git a/include/linux/counter.h b/include/linux/counter.h
    > index b7d0a00a61cf..8daaa38c71d8 100644
    > --- a/include/linux/counter.h
    > +++ b/include/linux/counter.h
    > @@ -329,6 +329,8 @@ struct counter_device {
    > struct mutex ops_exist_lock;
    > };
    >
    > +void *counter_priv(const struct counter_device *const counter);
    > +
    > int counter_register(struct counter_device *const counter);
    > void counter_unregister(struct counter_device *const counter);
    > int devm_counter_register(struct device *dev,
    > --
    > 2.33.0
    >
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