194 static struct ipmi_user *acquire_ipmi_user(struct ipmi_user *user, int *index)  in acquire_ipmi_user()  argument
195 	__acquires(user->release_barrier)  in acquire_ipmi_user()
199 	*index = srcu_read_lock(&user->release_barrier);  in acquire_ipmi_user()
200 	ruser = srcu_dereference(user->self, &user->release_barrier);  in acquire_ipmi_user()
202 		srcu_read_unlock(&user->release_barrier, *index);  in acquire_ipmi_user()
206 static void release_ipmi_user(struct ipmi_user *user, int index)  in release_ipmi_user()  argument
208 	srcu_read_unlock(&user->release_barrier, index);  in release_ipmi_user()
214 	struct ipmi_user *user;  member
876 	if (!msg->user) {  in deliver_response()
894 		struct ipmi_user *user = acquire_ipmi_user(msg->user, &index);  in deliver_response()  local
896 		if (user) {  in deliver_response()
897 			user->handler->ipmi_recv_hndl(msg, user->handler_data);  in deliver_response()
898 			release_ipmi_user(user, index);  in deliver_response()
1145 	struct ipmi_user *user = container_of(work, struct ipmi_user,  in free_user_work()  local
1148 	cleanup_srcu_struct(&user->release_barrier);  in free_user_work()
1149 	vfree(user);  in free_user_work()
1155 		     struct ipmi_user      **user)  in ipmi_create_user()  argument
1223 	*user = new_user;  in ipmi_create_user()
1261 	struct ipmi_user *user = container_of(ref, struct ipmi_user, refcount);  in free_user()  local
1264 	schedule_work(&user->remove_work);  in free_user()
1267 static void _ipmi_destroy_user(struct ipmi_user *user)  in _ipmi_destroy_user()  argument
1269 	struct ipmi_smi  *intf = user->intf;  in _ipmi_destroy_user()
1275 	if (!acquire_ipmi_user(user, &i)) {  in _ipmi_destroy_user()
1280 		synchronize_srcu(&user->release_barrier);  in _ipmi_destroy_user()
1284 	rcu_assign_pointer(user->self, NULL);  in _ipmi_destroy_user()
1285 	release_ipmi_user(user, i);  in _ipmi_destroy_user()
1287 	synchronize_srcu(&user->release_barrier);  in _ipmi_destroy_user()
1289 	if (user->handler->shutdown)  in _ipmi_destroy_user()
1290 		user->handler->shutdown(user->handler_data);  in _ipmi_destroy_user()
1292 	if (user->handler->ipmi_watchdog_pretimeout)  in _ipmi_destroy_user()
1295 	if (user->gets_events)  in _ipmi_destroy_user()
1300 	list_del_rcu(&user->link);  in _ipmi_destroy_user()
1304 		    && (intf->seq_table[i].recv_msg->user == user)) {  in _ipmi_destroy_user()
1321 		if (rcvr->user == user) {  in _ipmi_destroy_user()
1339 int ipmi_destroy_user(struct ipmi_user *user)  in ipmi_destroy_user()  argument
1341 	_ipmi_destroy_user(user);  in ipmi_destroy_user()
1343 	kref_put(&user->refcount, free_user);  in ipmi_destroy_user()
1349 int ipmi_get_version(struct ipmi_user *user,  in ipmi_get_version()  argument
1356 	user = acquire_ipmi_user(user, &index);  in ipmi_get_version()
1357 	if (!user)  in ipmi_get_version()
1360 	rv = bmc_get_device_id(user->intf, NULL, &id, NULL, NULL);  in ipmi_get_version()
1365 	release_ipmi_user(user, index);  in ipmi_get_version()
1371 int ipmi_set_my_address(struct ipmi_user *user,  in ipmi_set_my_address()  argument
1377 	user = acquire_ipmi_user(user, &index);  in ipmi_set_my_address()
1378 	if (!user)  in ipmi_set_my_address()
1385 		user->intf->addrinfo[channel].address = address;  in ipmi_set_my_address()
1387 	release_ipmi_user(user, index);  in ipmi_set_my_address()
1393 int ipmi_get_my_address(struct ipmi_user *user,  in ipmi_get_my_address()  argument
1399 	user = acquire_ipmi_user(user, &index);  in ipmi_get_my_address()
1400 	if (!user)  in ipmi_get_my_address()
1407 		*address = user->intf->addrinfo[channel].address;  in ipmi_get_my_address()
1409 	release_ipmi_user(user, index);  in ipmi_get_my_address()
1415 int ipmi_set_my_LUN(struct ipmi_user *user,  in ipmi_set_my_LUN()  argument
1421 	user = acquire_ipmi_user(user, &index);  in ipmi_set_my_LUN()
1422 	if (!user)  in ipmi_set_my_LUN()
1429 		user->intf->addrinfo[channel].lun = LUN & 0x3;  in ipmi_set_my_LUN()
1431 	release_ipmi_user(user, index);  in ipmi_set_my_LUN()
1437 int ipmi_get_my_LUN(struct ipmi_user *user,  in ipmi_get_my_LUN()  argument
1443 	user = acquire_ipmi_user(user, &index);  in ipmi_get_my_LUN()
1444 	if (!user)  in ipmi_get_my_LUN()
1451 		*address = user->intf->addrinfo[channel].lun;  in ipmi_get_my_LUN()
1453 	release_ipmi_user(user, index);  in ipmi_get_my_LUN()
1459 int ipmi_get_maintenance_mode(struct ipmi_user *user)  in ipmi_get_maintenance_mode()  argument
1464 	user = acquire_ipmi_user(user, &index);  in ipmi_get_maintenance_mode()
1465 	if (!user)  in ipmi_get_maintenance_mode()
1468 	spin_lock_irqsave(&user->intf->maintenance_mode_lock, flags);  in ipmi_get_maintenance_mode()
1469 	mode = user->intf->maintenance_mode;  in ipmi_get_maintenance_mode()
1470 	spin_unlock_irqrestore(&user->intf->maintenance_mode_lock, flags);  in ipmi_get_maintenance_mode()
1471 	release_ipmi_user(user, index);  in ipmi_get_maintenance_mode()
1484 int ipmi_set_maintenance_mode(struct ipmi_user *user, int mode)  in ipmi_set_maintenance_mode()  argument
1488 	struct ipmi_smi *intf = user->intf;  in ipmi_set_maintenance_mode()
1490 	user = acquire_ipmi_user(user, &index);  in ipmi_set_maintenance_mode()
1491 	if (!user)  in ipmi_set_maintenance_mode()
1520 	release_ipmi_user(user, index);  in ipmi_set_maintenance_mode()
1526 int ipmi_set_gets_events(struct ipmi_user *user, bool val)  in ipmi_set_gets_events()  argument
1529 	struct ipmi_smi      *intf = user->intf;  in ipmi_set_gets_events()
1534 	user = acquire_ipmi_user(user, &index);  in ipmi_set_gets_events()
1535 	if (!user)  in ipmi_set_gets_events()
1541 	if (user->gets_events == val)  in ipmi_set_gets_events()
1544 	user->gets_events = val;  in ipmi_set_gets_events()
1561 	while (user->gets_events && !list_empty(&intf->waiting_events)) {  in ipmi_set_gets_events()
1574 			msg->user = user;  in ipmi_set_gets_events()
1575 			kref_get(&user->refcount);  in ipmi_set_gets_events()
1585 	release_ipmi_user(user, index);  in ipmi_set_gets_events()
1623 int ipmi_register_for_cmd(struct ipmi_user *user,  in ipmi_register_for_cmd()  argument
1628 	struct ipmi_smi *intf = user->intf;  in ipmi_register_for_cmd()
1632 	user = acquire_ipmi_user(user, &index);  in ipmi_register_for_cmd()
1633 	if (!user)  in ipmi_register_for_cmd()
1644 	rcvr->user = user;  in ipmi_register_for_cmd()
1662 	release_ipmi_user(user, index);  in ipmi_register_for_cmd()
1668 int ipmi_unregister_for_cmd(struct ipmi_user *user,  in ipmi_unregister_for_cmd()  argument
1673 	struct ipmi_smi *intf = user->intf;  in ipmi_unregister_for_cmd()
1678 	user = acquire_ipmi_user(user, &index);  in ipmi_unregister_for_cmd()
1679 	if (!user)  in ipmi_unregister_for_cmd()
1689 		if (rcvr->user == user) {  in ipmi_unregister_for_cmd()
1701 	release_ipmi_user(user, index);  in ipmi_unregister_for_cmd()
2178 static int i_ipmi_request(struct ipmi_user     *user,  in i_ipmi_request()  argument
2225 	recv_msg->user = user;  in i_ipmi_request()
2226 	if (user)  in i_ipmi_request()
2228 		kref_get(&user->refcount);  in i_ipmi_request()
2280 int ipmi_request_settime(struct ipmi_user *user,  in ipmi_request_settime()  argument
2292 	if (!user)  in ipmi_request_settime()
2295 	user = acquire_ipmi_user(user, &index);  in ipmi_request_settime()
2296 	if (!user)  in ipmi_request_settime()
2299 	rv = check_addr(user->intf, addr, &saddr, &lun);  in ipmi_request_settime()
2301 		rv = i_ipmi_request(user,  in ipmi_request_settime()
2302 				    user->intf,  in ipmi_request_settime()
2314 	release_ipmi_user(user, index);  in ipmi_request_settime()
2319 int ipmi_request_supply_msgs(struct ipmi_user     *user,  in ipmi_request_supply_msgs()  argument
2331 	if (!user)  in ipmi_request_supply_msgs()
2334 	user = acquire_ipmi_user(user, &index);  in ipmi_request_supply_msgs()
2335 	if (!user)  in ipmi_request_supply_msgs()
2338 	rv = check_addr(user->intf, addr, &saddr, &lun);  in ipmi_request_supply_msgs()
2340 		rv = i_ipmi_request(user,  in ipmi_request_supply_msgs()
2341 				    user->intf,  in ipmi_request_supply_msgs()
2353 	release_ipmi_user(user, index);  in ipmi_request_supply_msgs()
3367 void ipmi_poll_interface(struct ipmi_user *user)  in ipmi_poll_interface()  argument
3369 	ipmi_poll(user->intf);  in ipmi_poll_interface()
3601 		struct ipmi_user *user =  in ipmi_unregister_smi()  local
3605 		_ipmi_destroy_user(user);  in ipmi_unregister_smi()
3692 	struct ipmi_user         *user = NULL;  in handle_ipmb_get_msg_cmd()  local
3714 		user = rcvr->user;  in handle_ipmb_get_msg_cmd()
3715 		kref_get(&user->refcount);  in handle_ipmb_get_msg_cmd()
3717 		user = NULL;  in handle_ipmb_get_msg_cmd()
3720 	if (user == NULL) {  in handle_ipmb_get_msg_cmd()
3760 			kref_put(&user->refcount, free_user);  in handle_ipmb_get_msg_cmd()
3773 			recv_msg->user = user;  in handle_ipmb_get_msg_cmd()
3872 	struct ipmi_user         *user = NULL;  in handle_lan_get_msg_cmd()  local
3894 		user = rcvr->user;  in handle_lan_get_msg_cmd()
3895 		kref_get(&user->refcount);  in handle_lan_get_msg_cmd()
3897 		user = NULL;  in handle_lan_get_msg_cmd()
3900 	if (user == NULL) {  in handle_lan_get_msg_cmd()
3917 			kref_put(&user->refcount, free_user);  in handle_lan_get_msg_cmd()
3933 			recv_msg->user = user;  in handle_lan_get_msg_cmd()
3971 	struct ipmi_user *user = NULL;  in handle_oem_get_msg_cmd()  local
4001 		user = rcvr->user;  in handle_oem_get_msg_cmd()
4002 		kref_get(&user->refcount);  in handle_oem_get_msg_cmd()
4004 		user = NULL;  in handle_oem_get_msg_cmd()
4007 	if (user == NULL) {  in handle_oem_get_msg_cmd()
4026 			kref_put(&user->refcount, free_user);  in handle_oem_get_msg_cmd()
4040 			recv_msg->user = user;  in handle_oem_get_msg_cmd()
4087 	struct ipmi_user     *user;  in handle_read_event_rsp()  local
4113 	list_for_each_entry_rcu(user, &intf->users, link) {  in handle_read_event_rsp()
4114 		if (!user->gets_events)  in handle_read_event_rsp()
4137 		recv_msg->user = user;  in handle_read_event_rsp()
4138 		kref_get(&user->refcount);  in handle_read_event_rsp()
4464 		struct ipmi_user *user;  in handle_new_recv_msgs()  local
4468 		list_for_each_entry_rcu(user, &intf->users, link) {  in handle_new_recv_msgs()
4469 			if (user->handler->ipmi_watchdog_pretimeout)  in handle_new_recv_msgs()
4470 				user->handler->ipmi_watchdog_pretimeout(  in handle_new_recv_msgs()
4471 					user->handler_data);  in handle_new_recv_msgs()
4820 		rv->user = NULL;  in ipmi_alloc_recv_msg()
4829 	if (msg->user)  in ipmi_free_recv_msg()
4830 		kref_put(&msg->user->refcount, free_user);  in ipmi_free_recv_msg()
5063 	struct ipmi_user *user;  in panic_event()  local
5100 		list_for_each_entry_rcu(user, &intf->users, link) {  in panic_event()
5101 			if (user->handler->ipmi_panic_handler)  in panic_event()
5102 				user->handler->ipmi_panic_handler(  in panic_event()
5103 					user->handler_data);  in panic_event()