150 	struct ssam_event_notifier *nf;  in ssam_nfblk_call_chain()  local
155 	list_for_each_entry_rcu(nf, &nh->head, base.node,  in ssam_nfblk_call_chain()
157 		if (ssam_event_matches_notifier(nf, event)) {  in ssam_nfblk_call_chain()
158 			ret = (ret & SSAM_NOTIF_STATE_MASK) | nf->base.fn(nf, event);  in ssam_nfblk_call_chain()
300  * @nf:  The notifier system reference.
308  * Note: ``nf->lock`` must be held when calling this function.
315 ssam_nf_refcount_inc(struct ssam_nf *nf, struct ssam_event_registry reg,  in ssam_nf_refcount_inc()  argument
320 	struct rb_node **link = &nf->refcount.rb_node;  in ssam_nf_refcount_inc()
324 	lockdep_assert_held(&nf->lock);  in ssam_nf_refcount_inc()
355 	rb_insert_color(&entry->node, &nf->refcount);  in ssam_nf_refcount_inc()
363  * @nf:  The notifier system reference.
371  * Note: ``nf->lock`` must be held when calling this function.
377 ssam_nf_refcount_dec(struct ssam_nf *nf, struct ssam_event_registry reg,  in ssam_nf_refcount_dec()  argument
382 	struct rb_node *node = nf->refcount.rb_node;  in ssam_nf_refcount_dec()
385 	lockdep_assert_held(&nf->lock);  in ssam_nf_refcount_dec()
401 				rb_erase(&entry->node, &nf->refcount);  in ssam_nf_refcount_dec()
413  * @nf:  The notifier system reference.
420  * Note: ``nf->lock`` must be held when calling this function.
422 static void ssam_nf_refcount_dec_free(struct ssam_nf *nf,  in ssam_nf_refcount_dec_free()  argument
428 	lockdep_assert_held(&nf->lock);  in ssam_nf_refcount_dec_free()
430 	entry = ssam_nf_refcount_dec(nf, reg, id);  in ssam_nf_refcount_dec_free()
438  * @nf: The notification system.
440 static bool ssam_nf_refcount_empty(struct ssam_nf *nf)  in ssam_nf_refcount_empty()  argument
442 	return RB_EMPTY_ROOT(&nf->refcount);  in ssam_nf_refcount_empty()
447  * @nf:    The notifier system
464 static void ssam_nf_call(struct ssam_nf *nf, struct device *dev, u16 rqid,  in ssam_nf_call()  argument
475 	nf_head = &nf->head[ssh_rqid_to_event(rqid)];  in ssam_nf_call()
494  * @nf: The notifier system to initialize.
496 static int ssam_nf_init(struct ssam_nf *nf)  in ssam_nf_init()  argument
501 		status = ssam_nf_head_init(&nf->head[i]);  in ssam_nf_init()
508 			ssam_nf_head_destroy(&nf->head[i]);  in ssam_nf_init()
513 	mutex_init(&nf->lock);  in ssam_nf_init()
519  * @nf: The notifier system to deinitialize.
521 static void ssam_nf_destroy(struct ssam_nf *nf)  in ssam_nf_destroy()  argument
526 		ssam_nf_head_destroy(&nf->head[i]);  in ssam_nf_destroy()
528 	mutex_destroy(&nf->lock);  in ssam_nf_destroy()
780 	struct ssam_nf *nf;  in ssam_event_queue_work_fn()  local
785 	nf = &queue->cplt->event.notif;  in ssam_event_queue_work_fn()
794 		ssam_nf_call(nf, dev, item->rqid, &item->event);  in ssam_event_queue_work_fn()
2207  * Note: ``nf->lock`` must be held when calling this function.
2217 	struct ssam_nf *nf = &ctrl->cplt.event.notif;  in ssam_nf_refcount_enable()  local
2220 	lockdep_assert_held(&nf->lock);  in ssam_nf_refcount_enable()
2271  * Note: ``nf->lock`` must be held when calling this function.
2281 	struct ssam_nf *nf = &ctrl->cplt.event.notif;  in ssam_nf_refcount_disable_free()  local
2284 	lockdep_assert_held(&nf->lock);  in ssam_nf_refcount_disable_free()
2332 	struct ssam_nf *nf;  in ssam_notifier_register()  local
2338 	nf = &ctrl->cplt.event.notif;  in ssam_notifier_register()
2339 	nf_head = &nf->head[ssh_rqid_to_event(rqid)];  in ssam_notifier_register()
2341 	mutex_lock(&nf->lock);  in ssam_notifier_register()
2344 		entry = ssam_nf_refcount_inc(nf, n->event.reg, n->event.id);  in ssam_notifier_register()
2346 			mutex_unlock(&nf->lock);  in ssam_notifier_register()
2354 			ssam_nf_refcount_dec_free(nf, n->event.reg, n->event.id);  in ssam_notifier_register()
2356 		mutex_unlock(&nf->lock);  in ssam_notifier_register()
2364 			ssam_nf_refcount_dec_free(nf, n->event.reg, n->event.id);  in ssam_notifier_register()
2365 			mutex_unlock(&nf->lock);  in ssam_notifier_register()
2371 	mutex_unlock(&nf->lock);  in ssam_notifier_register()
2401 	struct ssam_nf *nf;  in __ssam_notifier_unregister()  local
2407 	nf = &ctrl->cplt.event.notif;  in __ssam_notifier_unregister()
2408 	nf_head = &nf->head[ssh_rqid_to_event(rqid)];  in __ssam_notifier_unregister()
2410 	mutex_lock(&nf->lock);  in __ssam_notifier_unregister()
2413 		mutex_unlock(&nf->lock);  in __ssam_notifier_unregister()
2422 		entry = ssam_nf_refcount_dec(nf, n->event.reg, n->event.id);  in __ssam_notifier_unregister()
2439 	mutex_unlock(&nf->lock);  in __ssam_notifier_unregister()
2472 	struct ssam_nf *nf = &ctrl->cplt.event.notif;  in ssam_controller_event_enable()  local
2479 	mutex_lock(&nf->lock);  in ssam_controller_event_enable()
2481 	entry = ssam_nf_refcount_inc(nf, reg, id);  in ssam_controller_event_enable()
2483 		mutex_unlock(&nf->lock);  in ssam_controller_event_enable()
2489 		ssam_nf_refcount_dec_free(nf, reg, id);  in ssam_controller_event_enable()
2490 		mutex_unlock(&nf->lock);  in ssam_controller_event_enable()
2494 	mutex_unlock(&nf->lock);  in ssam_controller_event_enable()
2523 	struct ssam_nf *nf = &ctrl->cplt.event.notif;  in ssam_controller_event_disable()  local
2530 	mutex_lock(&nf->lock);  in ssam_controller_event_disable()
2532 	entry = ssam_nf_refcount_dec(nf, reg, id);  in ssam_controller_event_disable()
2534 		mutex_unlock(&nf->lock);  in ssam_controller_event_disable()
2540 	mutex_unlock(&nf->lock);  in ssam_controller_event_disable()
2568 	struct ssam_nf *nf = &ctrl->cplt.event.notif;  in ssam_notifier_disable_registered()  local
2572 	mutex_lock(&nf->lock);  in ssam_notifier_disable_registered()
2573 	for (n = rb_first(&nf->refcount); n; n = rb_next(n)) {  in ssam_notifier_disable_registered()
2582 	mutex_unlock(&nf->lock);  in ssam_notifier_disable_registered()
2593 	mutex_unlock(&nf->lock);  in ssam_notifier_disable_registered()
2613 	struct ssam_nf *nf = &ctrl->cplt.event.notif;  in ssam_notifier_restore_registered()  local
2616 	mutex_lock(&nf->lock);  in ssam_notifier_restore_registered()
2617 	for (n = rb_first(&nf->refcount); n; n = rb_next(n)) {  in ssam_notifier_restore_registered()
2625 	mutex_unlock(&nf->lock);  in ssam_notifier_restore_registered()
2637 	struct ssam_nf *nf = &ctrl->cplt.event.notif;  in ssam_notifier_is_empty()  local
2640 	mutex_lock(&nf->lock);  in ssam_notifier_is_empty()
2641 	result = ssam_nf_refcount_empty(nf);  in ssam_notifier_is_empty()
2642 	mutex_unlock(&nf->lock);  in ssam_notifier_is_empty()
2658 	struct ssam_nf *nf = &ctrl->cplt.event.notif;  in ssam_notifier_unregister_all()  local
2661 	mutex_lock(&nf->lock);  in ssam_notifier_unregister_all()
2662 	rbtree_postorder_for_each_entry_safe(e, n, &nf->refcount, node) {  in ssam_notifier_unregister_all()
2667 	nf->refcount = RB_ROOT;  in ssam_notifier_unregister_all()
2668 	mutex_unlock(&nf->lock);  in ssam_notifier_unregister_all()