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batman-adv: remove duplicate code from function is_bidirectional_neigh() 

In function is_bidirectional_neigh the code that find out the one hop
neighbor is duplicated.

Signed-off-by: Daniele Furlan <daniele.furlan@gmail.com>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
This commit is contained in:
Daniele Furlan 2011-05-07 22:45:19 +02:00 committed by Sven Eckelmann
parent 6e215fd8eb
commit 27aea2128e
1 changed files with 27 additions and 51 deletions
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78
net/batman-adv/routing.c
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@ -169,65 +169,41 @@ static int is_bidirectional_neigh(struct orig_node *orig_node,
uint8_t orig_eq_count, neigh_rq_count, tq_own;
int tq_asym_penalty, ret = 0;
if (orig_node == orig_neigh_node) {
rcu_read_lock();
hlist_for_each_entry_rcu(tmp_neigh_node, node,
&orig_node->neigh_list, list) {
/* find corresponding one hop neighbor */
rcu_read_lock();
hlist_for_each_entry_rcu(tmp_neigh_node, node,
&orig_neigh_node->neigh_list, list) {
if (!compare_eth(tmp_neigh_node->addr,
orig_neigh_node->orig))
continue;
if (!compare_eth(tmp_neigh_node->addr, orig_neigh_node->orig))
continue;
if (tmp_neigh_node->if_incoming != if_incoming)
continue;
if (tmp_neigh_node->if_incoming != if_incoming)
continue;
if (!atomic_inc_not_zero(&tmp_neigh_node->refcount))
continue;
if (!atomic_inc_not_zero(&tmp_neigh_node->refcount))
continue;
neigh_node = tmp_neigh_node;
}
rcu_read_unlock();
if (!neigh_node)
neigh_node = create_neighbor(orig_node,
orig_neigh_node,
orig_neigh_node->orig,
if_incoming);
if (!neigh_node)
goto out;
neigh_node->last_valid = jiffies;
} else {
/* find packet count of corresponding one hop neighbor */
rcu_read_lock();
hlist_for_each_entry_rcu(tmp_neigh_node, node,
&orig_neigh_node->neigh_list, list) {
if (!compare_eth(tmp_neigh_node->addr,
orig_neigh_node->orig))
continue;
if (tmp_neigh_node->if_incoming != if_incoming)
continue;
if (!atomic_inc_not_zero(&tmp_neigh_node->refcount))
continue;
neigh_node = tmp_neigh_node;
}
rcu_read_unlock();
if (!neigh_node)
neigh_node = create_neighbor(orig_neigh_node,
orig_neigh_node,
orig_neigh_node->orig,
if_incoming);
if (!neigh_node)
goto out;
neigh_node = tmp_neigh_node;
break;
}
rcu_read_unlock();
if (!neigh_node)
neigh_node = create_neighbor(orig_neigh_node,
orig_neigh_node,
orig_neigh_node->orig,
if_incoming);
if (!neigh_node)
goto out;
/* if orig_node is direct neighbour update neigh_node last_valid */
if (orig_node == orig_neigh_node)
neigh_node->last_valid = jiffies;
orig_node->last_valid = jiffies;
/* find packet count of corresponding one hop neighbor */
spin_lock_bh(&orig_node->ogm_cnt_lock);
orig_eq_count = orig_neigh_node->bcast_own_sum[if_incoming->if_num];
neigh_rq_count = neigh_node->real_packet_count;