368 #define IS_HNDL_PENDING(hndl)	(!(hndl)->r_evt)  argument
373 				    struct scmi_event_handler *hndl);
375 				      struct scmi_event_handler *hndl);
389 	struct scmi_event_handler *hndl;  in scmi_lookup_and_call_event_chain()  local
397 	hndl = scmi_get_active_handler(ni, evt_key);  in scmi_lookup_and_call_event_chain()
398 	if (!hndl)  in scmi_lookup_and_call_event_chain()
401 	ret = blocking_notifier_call_chain(&hndl->chain,  in scmi_lookup_and_call_event_chain()
407 	scmi_put_active_handler(ni, hndl);  in scmi_lookup_and_call_event_chain()
878 	struct scmi_event_handler *hndl;  in scmi_allocate_event_handler()  local
880 	hndl = kzalloc(sizeof(*hndl), GFP_KERNEL);  in scmi_allocate_event_handler()
881 	if (!hndl)  in scmi_allocate_event_handler()
883 	hndl->key = evt_key;  in scmi_allocate_event_handler()
884 	BLOCKING_INIT_NOTIFIER_HEAD(&hndl->chain);  in scmi_allocate_event_handler()
885 	refcount_set(&hndl->users, 1);  in scmi_allocate_event_handler()
887 	hash_add(ni->pending_events_handlers, &hndl->hash, hndl->key);  in scmi_allocate_event_handler()
889 	return hndl;  in scmi_allocate_event_handler()
899 static void scmi_free_event_handler(struct scmi_event_handler *hndl)  in scmi_free_event_handler()  argument
901 	hash_del(&hndl->hash);  in scmi_free_event_handler()
902 	kfree(hndl);  in scmi_free_event_handler()
918 					  struct scmi_event_handler *hndl)  in scmi_bind_event_handler()  argument
922 	r_evt = SCMI_GET_REVT(ni, KEY_XTRACT_PROTO_ID(hndl->key),  in scmi_bind_event_handler()
923 			      KEY_XTRACT_EVT_ID(hndl->key));  in scmi_bind_event_handler()
931 	hash_del(&hndl->hash);  in scmi_bind_event_handler()
939 	scmi_protocol_acquire(ni->handle, KEY_XTRACT_PROTO_ID(hndl->key));  in scmi_bind_event_handler()
940 	hndl->r_evt = r_evt;  in scmi_bind_event_handler()
944 		 &hndl->hash, hndl->key);  in scmi_bind_event_handler()
965 					     struct scmi_event_handler *hndl)  in scmi_valid_pending_handler()  argument
969 	if (!IS_HNDL_PENDING(hndl))  in scmi_valid_pending_handler()
972 	pd = SCMI_GET_PROTO(ni, KEY_XTRACT_PROTO_ID(hndl->key));  in scmi_valid_pending_handler()
997 				       struct scmi_event_handler *hndl)  in scmi_register_event_handler()  argument
1001 	ret = scmi_bind_event_handler(ni, hndl);  in scmi_register_event_handler()
1004 			hndl->key);  in scmi_register_event_handler()
1006 		ret = scmi_valid_pending_handler(ni, hndl);  in scmi_register_event_handler()
1010 				hndl->key);  in scmi_register_event_handler()
1051 	struct scmi_event_handler *hndl = NULL;  in __scmi_event_handler_get_ops()  local
1060 		hndl = KEY_FIND(r_evt->proto->registered_events_handlers,  in __scmi_event_handler_get_ops()
1061 				hndl, evt_key);  in __scmi_event_handler_get_ops()
1062 		if (hndl)  in __scmi_event_handler_get_ops()
1063 			refcount_inc(&hndl->users);  in __scmi_event_handler_get_ops()
1068 	if (!hndl) {  in __scmi_event_handler_get_ops()
1069 		hndl = KEY_FIND(ni->pending_events_handlers, hndl, evt_key);  in __scmi_event_handler_get_ops()
1070 		if (hndl)  in __scmi_event_handler_get_ops()
1071 			refcount_inc(&hndl->users);  in __scmi_event_handler_get_ops()
1075 	if (!hndl && create) {  in __scmi_event_handler_get_ops()
1076 		hndl = scmi_allocate_event_handler(ni, evt_key);  in __scmi_event_handler_get_ops()
1077 		if (hndl && scmi_register_event_handler(ni, hndl)) {  in __scmi_event_handler_get_ops()
1080 				hndl->key);  in __scmi_event_handler_get_ops()
1082 			scmi_put_handler_unlocked(ni, hndl);  in __scmi_event_handler_get_ops()
1083 			hndl = NULL;  in __scmi_event_handler_get_ops()
1088 	return hndl;  in __scmi_event_handler_get_ops()
1118 	struct scmi_event_handler *hndl = NULL;  in scmi_get_active_handler()  local
1124 		hndl = KEY_FIND(r_evt->proto->registered_events_handlers,  in scmi_get_active_handler()
1125 				hndl, evt_key);  in scmi_get_active_handler()
1126 		if (hndl)  in scmi_get_active_handler()
1127 			refcount_inc(&hndl->users);  in scmi_get_active_handler()
1131 	return hndl;  in scmi_get_active_handler()
1193 static int scmi_enable_events(struct scmi_event_handler *hndl)  in scmi_enable_events()  argument
1197 	if (!hndl->enabled) {  in scmi_enable_events()
1198 		ret = __scmi_enable_evt(hndl->r_evt,  in scmi_enable_events()
1199 					KEY_XTRACT_SRC_ID(hndl->key), true);  in scmi_enable_events()
1201 			hndl->enabled = true;  in scmi_enable_events()
1207 static int scmi_disable_events(struct scmi_event_handler *hndl)  in scmi_disable_events()  argument
1211 	if (hndl->enabled) {  in scmi_disable_events()
1212 		ret = __scmi_enable_evt(hndl->r_evt,  in scmi_disable_events()
1213 					KEY_XTRACT_SRC_ID(hndl->key), false);  in scmi_disable_events()
1215 			hndl->enabled = false;  in scmi_disable_events()
1236 				      struct scmi_event_handler *hndl)  in scmi_put_handler_unlocked()  argument
1240 	if (refcount_dec_and_test(&hndl->users)) {  in scmi_put_handler_unlocked()
1241 		if (!IS_HNDL_PENDING(hndl))  in scmi_put_handler_unlocked()
1242 			scmi_disable_events(hndl);  in scmi_put_handler_unlocked()
1243 		scmi_free_event_handler(hndl);  in scmi_put_handler_unlocked()
1251 			     struct scmi_event_handler *hndl)  in scmi_put_handler()  argument
1255 	struct scmi_registered_event *r_evt = hndl->r_evt;  in scmi_put_handler()
1263 	freed = scmi_put_handler_unlocked(ni, hndl);  in scmi_put_handler()
1280 				    struct scmi_event_handler *hndl)  in scmi_put_active_handler()  argument
1283 	struct scmi_registered_event *r_evt = hndl->r_evt;  in scmi_put_active_handler()
1287 	freed = scmi_put_handler_unlocked(ni, hndl);  in scmi_put_active_handler()
1299 static int scmi_event_handler_enable_events(struct scmi_event_handler *hndl)  in scmi_event_handler_enable_events()  argument
1301 	if (scmi_enable_events(hndl)) {  in scmi_event_handler_enable_events()
1302 		pr_err("Failed to ENABLE events for key:%X !\n", hndl->key);  in scmi_event_handler_enable_events()
1348 	struct scmi_event_handler *hndl;  in scmi_notifier_register()  local
1357 	hndl = scmi_get_or_create_handler(ni, evt_key);  in scmi_notifier_register()
1358 	if (!hndl)  in scmi_notifier_register()
1361 	blocking_notifier_chain_register(&hndl->chain, nb);  in scmi_notifier_register()
1364 	if (!IS_HNDL_PENDING(hndl)) {  in scmi_notifier_register()
1365 		ret = scmi_event_handler_enable_events(hndl);  in scmi_notifier_register()
1367 			scmi_put_handler(ni, hndl);  in scmi_notifier_register()
1394 	struct scmi_event_handler *hndl;  in scmi_notifier_unregister()  local
1403 	hndl = scmi_get_handler(ni, evt_key);  in scmi_notifier_unregister()
1404 	if (!hndl)  in scmi_notifier_unregister()
1411 	blocking_notifier_chain_unregister(&hndl->chain, nb);  in scmi_notifier_unregister()
1412 	scmi_put_handler(ni, hndl);  in scmi_notifier_unregister()
1425 	scmi_put_handler(ni, hndl);  in scmi_notifier_unregister()
1570 	struct scmi_event_handler *hndl;  in scmi_protocols_late_init()  local
1580 	hash_for_each_safe(ni->pending_events_handlers, bkt, tmp, hndl, hash) {  in scmi_protocols_late_init()
1583 		ret = scmi_bind_event_handler(ni, hndl);  in scmi_protocols_late_init()
1587 				hndl->key);  in scmi_protocols_late_init()
1588 			ret = scmi_event_handler_enable_events(hndl);  in scmi_protocols_late_init()
1592 					hndl->key);  in scmi_protocols_late_init()
1593 				scmi_put_active_handler(ni, hndl);  in scmi_protocols_late_init()
1596 			ret = scmi_valid_pending_handler(ni, hndl);  in scmi_protocols_late_init()
1600 					hndl->key);  in scmi_protocols_late_init()
1602 				scmi_put_handler_unlocked(ni, hndl);  in scmi_protocols_late_init()