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batman-adv: separate ethernet comparing calls from hash functions

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Note: The function compare_ether_addr() provided by the Linux kernel
requires aligned memory.

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
This commit is contained in:
Marek Lindner
2011-02-18 12:28:08 +00:00
parent 9e0b33c221
commit 39901e7162
8 changed files with 51 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/batman-adv/routing.c
+27 -28
View File
@@ -163,8 +163,8 @@ static int is_bidirectional_neigh(struct orig_node *orig_node,
hlist_for_each_entry_rcu(tmp_neigh_node, node,
&orig_node->neigh_list, list) {
if (compare_orig(tmp_neigh_node->addr,
orig_neigh_node->orig) &&
if (compare_eth(tmp_neigh_node->addr,
orig_neigh_node->orig) &&
(tmp_neigh_node->if_incoming == if_incoming))
neigh_node = tmp_neigh_node;
}
@@ -192,8 +192,8 @@ static int is_bidirectional_neigh(struct orig_node *orig_node,
hlist_for_each_entry_rcu(tmp_neigh_node, node,
&orig_neigh_node->neigh_list, list) {
if (compare_orig(tmp_neigh_node->addr,
orig_neigh_node->orig) &&
if (compare_eth(tmp_neigh_node->addr,
orig_neigh_node->orig) &&
(tmp_neigh_node->if_incoming == if_incoming))
neigh_node = tmp_neigh_node;
}
@@ -304,8 +304,8 @@ static void bonding_candidate_add(struct orig_node *orig_node,
spin_lock_bh(&orig_node->neigh_list_lock);
/* only consider if it has the same primary address ... */
if (!compare_orig(orig_node->orig,
neigh_node->orig_node->primary_addr))
if (!compare_eth(orig_node->orig,
neigh_node->orig_node->primary_addr))
goto candidate_del;
if (!orig_node->router)
@@ -334,7 +334,7 @@ static void bonding_candidate_add(struct orig_node *orig_node,
continue;
if ((neigh_node->if_incoming == tmp_neigh_node->if_incoming) ||
(compare_orig(neigh_node->addr, tmp_neigh_node->addr))) {
(compare_eth(neigh_node->addr, tmp_neigh_node->addr))) {
interference_candidate = 1;
break;
}
@@ -394,7 +394,7 @@ static void update_orig(struct bat_priv *bat_priv,
rcu_read_lock();
hlist_for_each_entry_rcu(tmp_neigh_node, node,
&orig_node->neigh_list, list) {
if (compare_orig(tmp_neigh_node->addr, ethhdr->h_source) &&
if (compare_eth(tmp_neigh_node->addr, ethhdr->h_source) &&
(tmp_neigh_node->if_incoming == if_incoming) &&
atomic_inc_not_zero(&tmp_neigh_node->refcount)) {
if (neigh_node)
@@ -579,7 +579,7 @@ static char count_real_packets(struct ethhdr *ethhdr,
orig_node->last_real_seqno,
batman_packet->seqno);
if (compare_orig(tmp_neigh_node->addr, ethhdr->h_source) &&
if (compare_eth(tmp_neigh_node->addr, ethhdr->h_source) &&
(tmp_neigh_node->if_incoming == if_incoming))
set_mark = 1;
else
@@ -644,8 +644,8 @@ void receive_bat_packet(struct ethhdr *ethhdr,
has_directlink_flag = (batman_packet->flags & DIRECTLINK ? 1 : 0);
is_single_hop_neigh = (compare_orig(ethhdr->h_source,
batman_packet->orig) ? 1 : 0);
is_single_hop_neigh = (compare_eth(ethhdr->h_source,
batman_packet->orig) ? 1 : 0);
bat_dbg(DBG_BATMAN, bat_priv,
"Received BATMAN packet via NB: %pM, IF: %s [%pM] "
@@ -665,19 +665,19 @@ void receive_bat_packet(struct ethhdr *ethhdr,
if (batman_if->soft_iface != if_incoming->soft_iface)
continue;
if (compare_orig(ethhdr->h_source,
batman_if->net_dev->dev_addr))
if (compare_eth(ethhdr->h_source,
batman_if->net_dev->dev_addr))
is_my_addr = 1;
if (compare_orig(batman_packet->orig,
batman_if->net_dev->dev_addr))
if (compare_eth(batman_packet->orig,
batman_if->net_dev->dev_addr))
is_my_orig = 1;
if (compare_orig(batman_packet->prev_sender,
batman_if->net_dev->dev_addr))
if (compare_eth(batman_packet->prev_sender,
batman_if->net_dev->dev_addr))
is_my_oldorig = 1;
if (compare_orig(ethhdr->h_source, broadcast_addr))
if (compare_eth(ethhdr->h_source, broadcast_addr))
is_broadcast = 1;
}
rcu_read_unlock();
@@ -717,8 +717,8 @@ void receive_bat_packet(struct ethhdr *ethhdr,
/* if received seqno equals last send seqno save new
* seqno for bidirectional check */
if (has_directlink_flag &&
compare_orig(if_incoming->net_dev->dev_addr,
batman_packet->orig) &&
compare_eth(if_incoming->net_dev->dev_addr,
batman_packet->orig) &&
(batman_packet->seqno - if_incoming_seqno + 2 == 0)) {
offset = if_incoming->if_num * NUM_WORDS;
@@ -765,11 +765,11 @@ void receive_bat_packet(struct ethhdr *ethhdr,
/* avoid temporary routing loops */
if ((orig_node->router) &&
(orig_node->router->orig_node->router) &&
(compare_orig(orig_node->router->addr,
batman_packet->prev_sender)) &&
!(compare_orig(batman_packet->orig, batman_packet->prev_sender)) &&
(compare_orig(orig_node->router->addr,
orig_node->router->orig_node->router->addr))) {
(compare_eth(orig_node->router->addr,
batman_packet->prev_sender)) &&
!(compare_eth(batman_packet->orig, batman_packet->prev_sender)) &&
(compare_eth(orig_node->router->addr,
orig_node->router->orig_node->router->addr))) {
bat_dbg(DBG_BATMAN, bat_priv,
"Drop packet: ignoring all rebroadcast packets that "
"may make me loop (sender: %pM)\n", ethhdr->h_source);
@@ -1185,14 +1185,13 @@ struct neigh_node *find_router(struct bat_priv *bat_priv,
/* if we have something in the primary_addr, we can search
* for a potential bonding candidate. */
if (memcmp(router_orig->primary_addr, zero_mac, ETH_ALEN) == 0)
if (compare_eth(router_orig->primary_addr, zero_mac))
goto return_router;
/* find the orig_node which has the primary interface. might
* even be the same as our router_orig in many cases */
if (memcmp(router_orig->primary_addr,
router_orig->orig, ETH_ALEN) == 0) {
if (compare_eth(router_orig->primary_addr, router_orig->orig)) {
primary_orig_node = router_orig;
} else {
primary_orig_node = hash_find(bat_priv->orig_hash, compare_orig,