> + if (!WARN_ON_ONCE(kc->timer_wait_running)) > + kc->timer_wait_running(timer);
This looks weird. The only place calling yor new method only does so after checking that it is not set and actually warns if it set?
> + if (!WARN_ON_ONCE(kc->timer_wait_running)) > + kc->timer_wait_running(timer);
This looks weird. The only place calling yor new method only does so after checking that it is not set and actually warns if it set?