232 static void batadv_nc_path_free_ref(struct batadv_nc_path *nc_path)  in batadv_nc_path_free_ref()  argument
234 	if (atomic_dec_and_test(&nc_path->refcount))  in batadv_nc_path_free_ref()
235 		kfree_rcu(nc_path, rcu);  in batadv_nc_path_free_ref()
247 	batadv_nc_path_free_ref(nc_packet->nc_path);  in batadv_nc_packet_free()
275 					      struct batadv_nc_path *nc_path)  in batadv_nc_to_purge_nc_path_coding()  argument
283 	return batadv_has_timed_out(nc_path->last_valid,  in batadv_nc_to_purge_nc_path_coding()
295 						struct batadv_nc_path *nc_path)  in batadv_nc_to_purge_nc_path_decoding()  argument
303 	return batadv_has_timed_out(nc_path->last_valid,  in batadv_nc_to_purge_nc_path_decoding()
415 	struct batadv_nc_path *nc_path;  in batadv_nc_purge_paths()  local
425 		hlist_for_each_entry_safe(nc_path, node_tmp, head, hash_entry) {  in batadv_nc_purge_paths()
429 			if (to_purge && !to_purge(bat_priv, nc_path))  in batadv_nc_purge_paths()
437 			if (!unlikely(list_empty(&nc_path->packet_list))) {  in batadv_nc_purge_paths()
441 							 nc_path->prev_hop,  in batadv_nc_purge_paths()
442 							 nc_path->next_hop);  in batadv_nc_purge_paths()
449 				   nc_path->prev_hop, nc_path->next_hop);  in batadv_nc_purge_paths()
450 			hlist_del_rcu(&nc_path->hash_entry);  in batadv_nc_purge_paths()
451 			batadv_nc_path_free_ref(nc_path);  in batadv_nc_purge_paths()
479 	const struct batadv_nc_path *nc_path = data;  in batadv_nc_hash_choose()  local
482 	hash = jhash(&nc_path->prev_hop, sizeof(nc_path->prev_hop), hash);  in batadv_nc_hash_choose()
483 	hash = jhash(&nc_path->next_hop, sizeof(nc_path->next_hop), hash);  in batadv_nc_hash_choose()
528 	struct batadv_nc_path *nc_path, *nc_path_tmp = NULL;  in batadv_nc_hash_find()  local
538 	hlist_for_each_entry_rcu(nc_path, head, hash_entry) {  in batadv_nc_hash_find()
539 		if (!batadv_nc_hash_compare(&nc_path->hash_entry, data))  in batadv_nc_hash_find()
542 		if (!atomic_inc_not_zero(&nc_path->refcount))  in batadv_nc_hash_find()
545 		nc_path_tmp = nc_path;  in batadv_nc_hash_find()
561 			       nc_packet->nc_path->next_hop);  in batadv_nc_send_packet()
580 				    struct batadv_nc_path *nc_path,  in batadv_nc_sniffed_purge()  argument
586 	lockdep_assert_held(&nc_path->packet_list_lock);  in batadv_nc_sniffed_purge()
619 				struct batadv_nc_path *nc_path,  in batadv_nc_fwd_flush()  argument
624 	lockdep_assert_held(&nc_path->packet_list_lock);  in batadv_nc_fwd_flush()
661 	struct batadv_nc_path *nc_path;  in batadv_nc_process_nc_paths()  local
674 		hlist_for_each_entry_rcu(nc_path, head, hash_entry) {  in batadv_nc_process_nc_paths()
676 			spin_lock_bh(&nc_path->packet_list_lock);  in batadv_nc_process_nc_paths()
678 						 &nc_path->packet_list, list) {  in batadv_nc_process_nc_paths()
679 				ret = process_fn(bat_priv, nc_path, nc_packet);  in batadv_nc_process_nc_paths()
683 			spin_unlock_bh(&nc_path->packet_list_lock);  in batadv_nc_process_nc_paths()
946 	struct batadv_nc_path *nc_path, nc_path_key;  in batadv_nc_get_path()  local
951 	nc_path = batadv_nc_hash_find(hash, (void *)&nc_path_key);  in batadv_nc_get_path()
953 	if (nc_path) {  in batadv_nc_get_path()
955 		nc_path->last_valid = jiffies;  in batadv_nc_get_path()
956 		return nc_path;  in batadv_nc_get_path()
960 	nc_path = kzalloc(sizeof(*nc_path), GFP_ATOMIC);  in batadv_nc_get_path()
962 	if (!nc_path)  in batadv_nc_get_path()
966 	INIT_LIST_HEAD(&nc_path->packet_list);  in batadv_nc_get_path()
967 	spin_lock_init(&nc_path->packet_list_lock);  in batadv_nc_get_path()
968 	atomic_set(&nc_path->refcount, 2);  in batadv_nc_get_path()
969 	nc_path->last_valid = jiffies;  in batadv_nc_get_path()
970 	ether_addr_copy(nc_path->next_hop, dst);  in batadv_nc_get_path()
971 	ether_addr_copy(nc_path->prev_hop, src);  in batadv_nc_get_path()
974 		   nc_path->prev_hop,  in batadv_nc_get_path()
975 		   nc_path->next_hop);  in batadv_nc_get_path()
980 				     &nc_path->hash_entry);  in batadv_nc_get_path()
983 		kfree(nc_path);  in batadv_nc_get_path()
987 	return nc_path;  in batadv_nc_get_path()
1094 		first_dest = nc_packet->nc_path->next_hop;  in batadv_nc_code_packets()
1095 		first_source = nc_packet->nc_path->prev_hop;  in batadv_nc_code_packets()
1107 		second_dest = nc_packet->nc_path->next_hop;  in batadv_nc_code_packets()
1108 		second_source = nc_packet->nc_path->prev_hop;  in batadv_nc_code_packets()
1260 	struct batadv_nc_path *nc_path, nc_path_key;  in batadv_nc_path_search()  local
1276 	hlist_for_each_entry_rcu(nc_path, &hash->table[idx], hash_entry) {  in batadv_nc_path_search()
1277 		if (!batadv_compare_eth(nc_path->prev_hop, in_nc_node->addr))  in batadv_nc_path_search()
1280 		if (!batadv_compare_eth(nc_path->next_hop, out_nc_node->addr))  in batadv_nc_path_search()
1283 		spin_lock_bh(&nc_path->packet_list_lock);  in batadv_nc_path_search()
1284 		if (list_empty(&nc_path->packet_list)) {  in batadv_nc_path_search()
1285 			spin_unlock_bh(&nc_path->packet_list_lock);  in batadv_nc_path_search()
1290 					 &nc_path->packet_list, list) {  in batadv_nc_path_search()
1302 		spin_unlock_bh(&nc_path->packet_list_lock);  in batadv_nc_path_search()
1459 				      struct batadv_nc_path *nc_path,  in batadv_nc_skb_add_to_path()  argument
1474 	nc_packet->nc_path = nc_path;  in batadv_nc_skb_add_to_path()
1477 	spin_lock_bh(&nc_path->packet_list_lock);  in batadv_nc_skb_add_to_path()
1478 	list_add_tail(&nc_packet->list, &nc_path->packet_list);  in batadv_nc_skb_add_to_path()
1479 	spin_unlock_bh(&nc_path->packet_list_lock);  in batadv_nc_skb_add_to_path()
1498 	struct batadv_nc_path *nc_path;  in batadv_nc_skb_forward()  local
1518 	nc_path = batadv_nc_get_path(bat_priv,  in batadv_nc_skb_forward()
1523 	if (!nc_path)  in batadv_nc_skb_forward()
1528 	if (!batadv_nc_skb_add_to_path(skb, nc_path, neigh_node, packet_id))  in batadv_nc_skb_forward()
1535 	batadv_nc_path_free_ref(nc_path);  in batadv_nc_skb_forward()
1551 	struct batadv_nc_path *nc_path;  in batadv_nc_skb_store_for_decoding()  local
1567 	nc_path = batadv_nc_get_path(bat_priv,  in batadv_nc_skb_store_for_decoding()
1572 	if (!nc_path)  in batadv_nc_skb_store_for_decoding()
1588 	if (!batadv_nc_skb_add_to_path(skb, nc_path, NULL, packet_id))  in batadv_nc_skb_store_for_decoding()
1597 	batadv_nc_path_free_ref(nc_path);  in batadv_nc_skb_store_for_decoding()
1732 	struct batadv_nc_path *nc_path, nc_path_key;  in batadv_nc_find_decoding_packet()  local
1755 	hlist_for_each_entry_rcu(nc_path, &hash->table[index], hash_entry) {  in batadv_nc_find_decoding_packet()
1757 		spin_lock_bh(&nc_path->packet_list_lock);  in batadv_nc_find_decoding_packet()
1759 				    &nc_path->packet_list, list) {  in batadv_nc_find_decoding_packet()
1767 		spin_unlock_bh(&nc_path->packet_list_lock);  in batadv_nc_find_decoding_packet()