64 static struct nr_neigh *nr_neigh_get_dev(ax25_address *callsign,  in nr_neigh_get_dev()
67 	struct nr_neigh *found = NULL;  in nr_neigh_get_dev()
68 	struct nr_neigh *nr_neigh;  in nr_neigh_get_dev()  local
71 	nr_neigh_for_each(nr_neigh, &nr_neigh_list)  in nr_neigh_get_dev()
72 		if (ax25cmp(callsign, &nr_neigh->callsign) == 0 &&  in nr_neigh_get_dev()
73 		    nr_neigh->dev == dev) {  in nr_neigh_get_dev()
74 			nr_neigh_hold(nr_neigh);  in nr_neigh_get_dev()
75 			found = nr_neigh;  in nr_neigh_get_dev()
82 static void nr_remove_neigh(struct nr_neigh *);
93 	struct nr_neigh *nr_neigh;  in nr_add_node()  local
105 	nr_neigh = nr_neigh_get_dev(ax25, dev);  in nr_add_node()
113 	if (nr_neigh != NULL && nr_neigh->failed != 0 && quality == 0) {  in nr_add_node()
120 				if (nr_nodet->routes[i].neighbour == nr_neigh)  in nr_add_node()
128 	if (nr_neigh != NULL)  in nr_add_node()
129 		nr_neigh->failed = 0;  in nr_add_node()
131 	if (quality == 0 && nr_neigh != NULL && nr_node != NULL) {  in nr_add_node()
132 		nr_neigh_put(nr_neigh);  in nr_add_node()
137 	if (nr_neigh == NULL) {  in nr_add_node()
138 		if ((nr_neigh = kmalloc(sizeof(*nr_neigh), GFP_ATOMIC)) == NULL) {  in nr_add_node()
144 		nr_neigh->callsign = *ax25;  in nr_add_node()
145 		nr_neigh->digipeat = NULL;  in nr_add_node()
146 		nr_neigh->ax25     = NULL;  in nr_add_node()
147 		nr_neigh->dev      = dev;  in nr_add_node()
148 		nr_neigh->quality  = sysctl_netrom_default_path_quality;  in nr_add_node()
149 		nr_neigh->locked   = 0;  in nr_add_node()
150 		nr_neigh->count    = 0;  in nr_add_node()
151 		nr_neigh->number   = nr_neigh_no++;  in nr_add_node()
152 		nr_neigh->failed   = 0;  in nr_add_node()
153 		atomic_set(&nr_neigh->refcount, 1);  in nr_add_node()
156 			nr_neigh->digipeat = kmemdup(ax25_digi,  in nr_add_node()
159 			if (nr_neigh->digipeat == NULL) {  in nr_add_node()
160 				kfree(nr_neigh);  in nr_add_node()
168 		hlist_add_head(&nr_neigh->neigh_node, &nr_neigh_list);  in nr_add_node()
169 		nr_neigh_hold(nr_neigh);  in nr_add_node()
173 	if (quality != 0 && ax25cmp(nr, ax25) == 0 && !nr_neigh->locked)  in nr_add_node()
174 		nr_neigh->quality = quality;  in nr_add_node()
178 			if (nr_neigh)  in nr_add_node()
179 				nr_neigh_put(nr_neigh);  in nr_add_node()
193 		nr_node->routes[0].neighbour = nr_neigh;  in nr_add_node()
195 		nr_neigh_hold(nr_neigh);  in nr_add_node()
196 		nr_neigh->count++;  in nr_add_node()
211 		if (nr_node->routes[i].neighbour == nr_neigh) {  in nr_add_node()
227 			nr_node->routes[0].neighbour = nr_neigh;  in nr_add_node()
231 			nr_neigh_hold(nr_neigh);  in nr_add_node()
232 			nr_neigh->count++;  in nr_add_node()
244 				nr_node->routes[2].neighbour = nr_neigh;  in nr_add_node()
246 				nr_neigh_hold(nr_neigh);  in nr_add_node()
247 				nr_neigh->count++;  in nr_add_node()
303 		if (nr_node->routes[i].neighbour == nr_neigh) {  in nr_add_node()
310 	nr_neigh_put(nr_neigh);  in nr_add_node()
332 static inline void __nr_remove_neigh(struct nr_neigh *nr_neigh)  in __nr_remove_neigh()  argument
334 	hlist_del_init(&nr_neigh->neigh_node);  in __nr_remove_neigh()
335 	nr_neigh_put(nr_neigh);  in __nr_remove_neigh()
341 static void nr_remove_neigh(struct nr_neigh *nr_neigh)  in nr_remove_neigh()  argument
344 	__nr_remove_neigh(nr_neigh);  in nr_remove_neigh()
355 	struct nr_neigh *nr_neigh;  in nr_del_node()  local
363 	nr_neigh = nr_neigh_get_dev(neighbour, dev);  in nr_del_node()
365 	if (nr_neigh == NULL) {  in nr_del_node()
372 		if (nr_node->routes[i].neighbour == nr_neigh) {  in nr_del_node()
373 			nr_neigh->count--;  in nr_del_node()
374 			nr_neigh_put(nr_neigh);  in nr_del_node()
376 			if (nr_neigh->count == 0 && !nr_neigh->locked)  in nr_del_node()
377 				nr_remove_neigh(nr_neigh);  in nr_del_node()
378 			nr_neigh_put(nr_neigh);  in nr_del_node()
400 	nr_neigh_put(nr_neigh);  in nr_del_node()
413 	struct nr_neigh *nr_neigh;  in nr_add_neigh()  local
415 	nr_neigh = nr_neigh_get_dev(callsign, dev);  in nr_add_neigh()
416 	if (nr_neigh) {  in nr_add_neigh()
417 		nr_neigh->quality = quality;  in nr_add_neigh()
418 		nr_neigh->locked  = 1;  in nr_add_neigh()
419 		nr_neigh_put(nr_neigh);  in nr_add_neigh()
423 	if ((nr_neigh = kmalloc(sizeof(*nr_neigh), GFP_ATOMIC)) == NULL)  in nr_add_neigh()
426 	nr_neigh->callsign = *callsign;  in nr_add_neigh()
427 	nr_neigh->digipeat = NULL;  in nr_add_neigh()
428 	nr_neigh->ax25     = NULL;  in nr_add_neigh()
429 	nr_neigh->dev      = dev;  in nr_add_neigh()
430 	nr_neigh->quality  = quality;  in nr_add_neigh()
431 	nr_neigh->locked   = 1;  in nr_add_neigh()
432 	nr_neigh->count    = 0;  in nr_add_neigh()
433 	nr_neigh->number   = nr_neigh_no++;  in nr_add_neigh()
434 	nr_neigh->failed   = 0;  in nr_add_neigh()
435 	atomic_set(&nr_neigh->refcount, 1);  in nr_add_neigh()
438 		nr_neigh->digipeat = kmemdup(ax25_digi, sizeof(*ax25_digi),  in nr_add_neigh()
440 		if (nr_neigh->digipeat == NULL) {  in nr_add_neigh()
441 			kfree(nr_neigh);  in nr_add_neigh()
447 	hlist_add_head(&nr_neigh->neigh_node, &nr_neigh_list);  in nr_add_neigh()
460 	struct nr_neigh *nr_neigh;  in nr_del_neigh()  local
462 	nr_neigh = nr_neigh_get_dev(callsign, dev);  in nr_del_neigh()
464 	if (nr_neigh == NULL) return -EINVAL;  in nr_del_neigh()
466 	nr_neigh->quality = quality;  in nr_del_neigh()
467 	nr_neigh->locked  = 0;  in nr_del_neigh()
469 	if (nr_neigh->count == 0)  in nr_del_neigh()
470 		nr_remove_neigh(nr_neigh);  in nr_del_neigh()
471 	nr_neigh_put(nr_neigh);  in nr_del_neigh()
483 	struct nr_neigh *nr_neigh;  in nr_dec_obs()  local
497 				nr_neigh = s->routes[i].neighbour;  in nr_dec_obs()
499 				nr_neigh->count--;  in nr_dec_obs()
500 				nr_neigh_put(nr_neigh);  in nr_dec_obs()
502 				if (nr_neigh->count == 0 && !nr_neigh->locked)  in nr_dec_obs()
503 					nr_remove_neigh(nr_neigh);  in nr_dec_obs()
539 	struct nr_neigh *s;  in nr_rt_device_down()
736 	struct nr_neigh *s, *nr_neigh = NULL;  in nr_link_failed()  local
743 			nr_neigh = s;  in nr_link_failed()
749 	if (nr_neigh == NULL)  in nr_link_failed()
752 	nr_neigh->ax25 = NULL;  in nr_link_failed()
755 	if (++nr_neigh->failed < sysctl_netrom_link_fails_count) {  in nr_link_failed()
756 		nr_neigh_put(nr_neigh);  in nr_link_failed()
763 		    nr_node->routes[nr_node->which].neighbour == nr_neigh)  in nr_link_failed()
768 	nr_neigh_put(nr_neigh);  in nr_link_failed()
778 	struct nr_neigh *nr_neigh;  in nr_route_frame()  local
826 	nr_neigh = nr_node->routes[nr_node->which].neighbour;  in nr_route_frame()
850 	ax25s = nr_neigh->ax25;  in nr_route_frame()
851 	nr_neigh->ax25 = ax25_send_frame(skb, 256,  in nr_route_frame()
853 					 &nr_neigh->callsign,  in nr_route_frame()
854 					 nr_neigh->digipeat, nr_neigh->dev);  in nr_route_frame()
859 	ret = (nr_neigh->ax25 != NULL);  in nr_route_frame()
960 		struct nr_neigh *nr_neigh;  in nr_neigh_show()  local
962 		nr_neigh = hlist_entry(v, struct nr_neigh, neigh_node);  in nr_neigh_show()
964 			nr_neigh->number,  in nr_neigh_show()
965 			ax2asc(buf, &nr_neigh->callsign),  in nr_neigh_show()
966 			nr_neigh->dev ? nr_neigh->dev->name : "???",  in nr_neigh_show()
967 			nr_neigh->quality,  in nr_neigh_show()
968 			nr_neigh->locked,  in nr_neigh_show()
969 			nr_neigh->count,  in nr_neigh_show()
970 			nr_neigh->failed);  in nr_neigh_show()
972 		if (nr_neigh->digipeat != NULL) {  in nr_neigh_show()
973 			for (i = 0; i < nr_neigh->digipeat->ndigi; i++)  in nr_neigh_show()
975 					   ax2asc(buf, &nr_neigh->digipeat->calls[i]));  in nr_neigh_show()
1010 	struct nr_neigh *s = NULL;  in nr_rt_free()