204 static void batadv_nc_path_free_ref(struct batadv_nc_path *nc_path)  in batadv_nc_path_free_ref()  argument
206 	if (atomic_dec_and_test(&nc_path->refcount))  in batadv_nc_path_free_ref()
207 		kfree_rcu(nc_path, rcu);  in batadv_nc_path_free_ref()
219 	batadv_nc_path_free_ref(nc_packet->nc_path);  in batadv_nc_packet_free()
247 					      struct batadv_nc_path *nc_path)  in batadv_nc_to_purge_nc_path_coding()  argument
255 	return batadv_has_timed_out(nc_path->last_valid,  in batadv_nc_to_purge_nc_path_coding()
267 						struct batadv_nc_path *nc_path)  in batadv_nc_to_purge_nc_path_decoding()  argument
275 	return batadv_has_timed_out(nc_path->last_valid,  in batadv_nc_to_purge_nc_path_decoding()
387 	struct batadv_nc_path *nc_path;  in batadv_nc_purge_paths()  local
397 		hlist_for_each_entry_safe(nc_path, node_tmp, head, hash_entry) {  in batadv_nc_purge_paths()
401 			if (to_purge && !to_purge(bat_priv, nc_path))  in batadv_nc_purge_paths()
409 			if (!unlikely(list_empty(&nc_path->packet_list))) {  in batadv_nc_purge_paths()
413 							 nc_path->prev_hop,  in batadv_nc_purge_paths()
414 							 nc_path->next_hop);  in batadv_nc_purge_paths()
421 				   nc_path->prev_hop, nc_path->next_hop);  in batadv_nc_purge_paths()
422 			hlist_del_rcu(&nc_path->hash_entry);  in batadv_nc_purge_paths()
423 			batadv_nc_path_free_ref(nc_path);  in batadv_nc_purge_paths()
451 	const struct batadv_nc_path *nc_path = data;  in batadv_nc_hash_choose()  local
454 	hash = batadv_hash_bytes(hash, &nc_path->prev_hop,  in batadv_nc_hash_choose()
455 				 sizeof(nc_path->prev_hop));  in batadv_nc_hash_choose()
456 	hash = batadv_hash_bytes(hash, &nc_path->next_hop,  in batadv_nc_hash_choose()
457 				 sizeof(nc_path->next_hop));  in batadv_nc_hash_choose()
506 	struct batadv_nc_path *nc_path, *nc_path_tmp = NULL;  in batadv_nc_hash_find()  local
516 	hlist_for_each_entry_rcu(nc_path, head, hash_entry) {  in batadv_nc_hash_find()
517 		if (!batadv_nc_hash_compare(&nc_path->hash_entry, data))  in batadv_nc_hash_find()
520 		if (!atomic_inc_not_zero(&nc_path->refcount))  in batadv_nc_hash_find()
523 		nc_path_tmp = nc_path;  in batadv_nc_hash_find()
539 			       nc_packet->nc_path->next_hop);  in batadv_nc_send_packet()
558 				    struct batadv_nc_path *nc_path,  in batadv_nc_sniffed_purge()  argument
595 				struct batadv_nc_path *nc_path,  in batadv_nc_fwd_flush()  argument
635 	struct batadv_nc_path *nc_path;  in batadv_nc_process_nc_paths()  local
648 		hlist_for_each_entry_rcu(nc_path, head, hash_entry) {  in batadv_nc_process_nc_paths()
650 			spin_lock_bh(&nc_path->packet_list_lock);  in batadv_nc_process_nc_paths()
652 						 &nc_path->packet_list, list) {  in batadv_nc_process_nc_paths()
653 				ret = process_fn(bat_priv, nc_path, nc_packet);  in batadv_nc_process_nc_paths()
657 			spin_unlock_bh(&nc_path->packet_list_lock);  in batadv_nc_process_nc_paths()
919 	struct batadv_nc_path *nc_path, nc_path_key;  in batadv_nc_get_path()  local
924 	nc_path = batadv_nc_hash_find(hash, (void *)&nc_path_key);  in batadv_nc_get_path()
926 	if (nc_path) {  in batadv_nc_get_path()
928 		nc_path->last_valid = jiffies;  in batadv_nc_get_path()
929 		return nc_path;  in batadv_nc_get_path()
933 	nc_path = kzalloc(sizeof(*nc_path), GFP_ATOMIC);  in batadv_nc_get_path()
935 	if (!nc_path)  in batadv_nc_get_path()
939 	INIT_LIST_HEAD(&nc_path->packet_list);  in batadv_nc_get_path()
940 	spin_lock_init(&nc_path->packet_list_lock);  in batadv_nc_get_path()
941 	atomic_set(&nc_path->refcount, 2);  in batadv_nc_get_path()
942 	nc_path->last_valid = jiffies;  in batadv_nc_get_path()
943 	ether_addr_copy(nc_path->next_hop, dst);  in batadv_nc_get_path()
944 	ether_addr_copy(nc_path->prev_hop, src);  in batadv_nc_get_path()
947 		   nc_path->prev_hop,  in batadv_nc_get_path()
948 		   nc_path->next_hop);  in batadv_nc_get_path()
953 				     &nc_path->hash_entry);  in batadv_nc_get_path()
956 		kfree(nc_path);  in batadv_nc_get_path()
960 	return nc_path;  in batadv_nc_get_path()
1067 		first_dest = nc_packet->nc_path->next_hop;  in batadv_nc_code_packets()
1068 		first_source = nc_packet->nc_path->prev_hop;  in batadv_nc_code_packets()
1080 		second_dest = nc_packet->nc_path->next_hop;  in batadv_nc_code_packets()
1081 		second_source = nc_packet->nc_path->prev_hop;  in batadv_nc_code_packets()
1234 	struct batadv_nc_path *nc_path, nc_path_key;  in batadv_nc_path_search()  local
1250 	hlist_for_each_entry_rcu(nc_path, &hash->table[idx], hash_entry) {  in batadv_nc_path_search()
1251 		if (!batadv_compare_eth(nc_path->prev_hop, in_nc_node->addr))  in batadv_nc_path_search()
1254 		if (!batadv_compare_eth(nc_path->next_hop, out_nc_node->addr))  in batadv_nc_path_search()
1257 		spin_lock_bh(&nc_path->packet_list_lock);  in batadv_nc_path_search()
1258 		if (list_empty(&nc_path->packet_list)) {  in batadv_nc_path_search()
1259 			spin_unlock_bh(&nc_path->packet_list_lock);  in batadv_nc_path_search()
1264 					 &nc_path->packet_list, list) {  in batadv_nc_path_search()
1276 		spin_unlock_bh(&nc_path->packet_list_lock);  in batadv_nc_path_search()
1433 				      struct batadv_nc_path *nc_path,  in batadv_nc_skb_add_to_path()  argument
1448 	nc_packet->nc_path = nc_path;  in batadv_nc_skb_add_to_path()
1451 	spin_lock_bh(&nc_path->packet_list_lock);  in batadv_nc_skb_add_to_path()
1452 	list_add_tail(&nc_packet->list, &nc_path->packet_list);  in batadv_nc_skb_add_to_path()
1453 	spin_unlock_bh(&nc_path->packet_list_lock);  in batadv_nc_skb_add_to_path()
1472 	struct batadv_nc_path *nc_path;  in batadv_nc_skb_forward()  local
1492 	nc_path = batadv_nc_get_path(bat_priv,  in batadv_nc_skb_forward()
1497 	if (!nc_path)  in batadv_nc_skb_forward()
1502 	if (!batadv_nc_skb_add_to_path(skb, nc_path, neigh_node, packet_id))  in batadv_nc_skb_forward()
1509 	batadv_nc_path_free_ref(nc_path);  in batadv_nc_skb_forward()
1525 	struct batadv_nc_path *nc_path;  in batadv_nc_skb_store_for_decoding()  local
1541 	nc_path = batadv_nc_get_path(bat_priv,  in batadv_nc_skb_store_for_decoding()
1546 	if (!nc_path)  in batadv_nc_skb_store_for_decoding()
1562 	if (!batadv_nc_skb_add_to_path(skb, nc_path, NULL, packet_id))  in batadv_nc_skb_store_for_decoding()
1571 	batadv_nc_path_free_ref(nc_path);  in batadv_nc_skb_store_for_decoding()
1706 	struct batadv_nc_path *nc_path, nc_path_key;  in batadv_nc_find_decoding_packet()  local
1729 	hlist_for_each_entry_rcu(nc_path, &hash->table[index], hash_entry) {  in batadv_nc_find_decoding_packet()
1731 		spin_lock_bh(&nc_path->packet_list_lock);  in batadv_nc_find_decoding_packet()
1733 				    &nc_path->packet_list, list) {  in batadv_nc_find_decoding_packet()
1741 		spin_unlock_bh(&nc_path->packet_list_lock);  in batadv_nc_find_decoding_packet()