net/atm/lec.c: Add __lec_arp_check_expire and other cleanups
Reduce indentation in lec_arp_check_expire Indent a case label Remove != NULL logical tests from while ((skb = foo())) assign and tests Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joe Perches
David S. Miller
parent
b7d9371bef
commit
b4c84ec0fd
149
net/atm/lec.c
149
net/atm/lec.c
|
|
@ -285,7 +285,6 @@ static netdev_tx_t lec_start_xmit(struct sk_buff *skb,
|
|||
|
||||
/* Make sure we have room for lec_id */
|
||||
if (skb_headroom(skb) < 2) {
|
||||
|
||||
pr_debug("reallocating skb\n");
|
||||
skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN);
|
||||
kfree_skb(skb);
|
||||
|
|
@ -508,34 +507,31 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
|
|||
break;
|
||||
case l_should_bridge:
|
||||
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
|
||||
{
|
||||
pr_debug("%s: bridge zeppelin asks about %pM\n",
|
||||
dev->name, mesg->content.proxy.mac_addr);
|
||||
{
|
||||
pr_debug("%s: bridge zeppelin asks about %pM\n",
|
||||
dev->name, mesg->content.proxy.mac_addr);
|
||||
|
||||
if (br_fdb_test_addr_hook == NULL)
|
||||
if (br_fdb_test_addr_hook == NULL)
|
||||
break;
|
||||
|
||||
if (br_fdb_test_addr_hook(dev, mesg->content.proxy.mac_addr)) {
|
||||
/* hit from bridge table, send LE_ARP_RESPONSE */
|
||||
struct sk_buff *skb2;
|
||||
struct sock *sk;
|
||||
|
||||
pr_debug("%s: entry found, responding to zeppelin\n",
|
||||
dev->name);
|
||||
skb2 = alloc_skb(sizeof(struct atmlec_msg), GFP_ATOMIC);
|
||||
if (skb2 == NULL)
|
||||
break;
|
||||
|
||||
if (br_fdb_test_addr_hook(dev,
|
||||
mesg->content.proxy.mac_addr)) {
|
||||
/* hit from bridge table, send LE_ARP_RESPONSE */
|
||||
struct sk_buff *skb2;
|
||||
struct sock *sk;
|
||||
|
||||
pr_debug("%s: entry found, responding to zeppelin\n",
|
||||
dev->name);
|
||||
skb2 = alloc_skb(sizeof(struct atmlec_msg),
|
||||
GFP_ATOMIC);
|
||||
if (skb2 == NULL)
|
||||
break;
|
||||
skb2->len = sizeof(struct atmlec_msg);
|
||||
skb_copy_to_linear_data(skb2, mesg,
|
||||
sizeof(*mesg));
|
||||
atm_force_charge(priv->lecd, skb2->truesize);
|
||||
sk = sk_atm(priv->lecd);
|
||||
skb_queue_tail(&sk->sk_receive_queue, skb2);
|
||||
sk->sk_data_ready(sk, skb2->len);
|
||||
}
|
||||
skb2->len = sizeof(struct atmlec_msg);
|
||||
skb_copy_to_linear_data(skb2, mesg, sizeof(*mesg));
|
||||
atm_force_charge(priv->lecd, skb2->truesize);
|
||||
sk = sk_atm(priv->lecd);
|
||||
skb_queue_tail(&sk->sk_receive_queue, skb2);
|
||||
sk->sk_data_ready(sk, skb2->len);
|
||||
}
|
||||
}
|
||||
#endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
|
||||
break;
|
||||
default:
|
||||
|
|
@ -561,7 +557,7 @@ static void lec_atm_close(struct atm_vcc *vcc)
|
|||
|
||||
if (skb_peek(&sk_atm(vcc)->sk_receive_queue))
|
||||
pr_info("%s closing with messages pending\n", dev->name);
|
||||
while ((skb = skb_dequeue(&sk_atm(vcc)->sk_receive_queue)) != NULL) {
|
||||
while ((skb = skb_dequeue(&sk_atm(vcc)->sk_receive_queue))) {
|
||||
atm_return(vcc, skb->truesize);
|
||||
dev_kfree_skb(skb);
|
||||
}
|
||||
|
|
@ -1748,6 +1744,50 @@ static void lec_arp_expire_vcc(unsigned long data)
|
|||
lec_arp_put(to_remove);
|
||||
}
|
||||
|
||||
static bool __lec_arp_check_expire(struct lec_arp_table *entry,
|
||||
unsigned long now,
|
||||
struct lec_priv *priv)
|
||||
{
|
||||
unsigned long time_to_check;
|
||||
|
||||
if ((entry->flags) & LEC_REMOTE_FLAG && priv->topology_change)
|
||||
time_to_check = priv->forward_delay_time;
|
||||
else
|
||||
time_to_check = priv->aging_time;
|
||||
|
||||
pr_debug("About to expire: %lx - %lx > %lx\n",
|
||||
now, entry->last_used, time_to_check);
|
||||
if (time_after(now, entry->last_used + time_to_check) &&
|
||||
!(entry->flags & LEC_PERMANENT_FLAG) &&
|
||||
!(entry->mac_addr[0] & 0x01)) { /* LANE2: 7.1.20 */
|
||||
/* Remove entry */
|
||||
pr_debug("Entry timed out\n");
|
||||
lec_arp_remove(priv, entry);
|
||||
lec_arp_put(entry);
|
||||
} else {
|
||||
/* Something else */
|
||||
if ((entry->status == ESI_VC_PENDING ||
|
||||
entry->status == ESI_ARP_PENDING) &&
|
||||
time_after_eq(now, entry->timestamp +
|
||||
priv->max_unknown_frame_time)) {
|
||||
entry->timestamp = jiffies;
|
||||
entry->packets_flooded = 0;
|
||||
if (entry->status == ESI_VC_PENDING)
|
||||
send_to_lecd(priv, l_svc_setup,
|
||||
entry->mac_addr,
|
||||
entry->atm_addr,
|
||||
NULL);
|
||||
}
|
||||
if (entry->status == ESI_FLUSH_PENDING &&
|
||||
time_after_eq(now, entry->timestamp +
|
||||
priv->path_switching_delay)) {
|
||||
lec_arp_hold(entry);
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
/*
|
||||
* Expire entries.
|
||||
* 1. Re-set timer
|
||||
|
|
@ -1772,7 +1812,6 @@ static void lec_arp_check_expire(struct work_struct *work)
|
|||
struct hlist_node *node, *next;
|
||||
struct lec_arp_table *entry;
|
||||
unsigned long now;
|
||||
unsigned long time_to_check;
|
||||
int i;
|
||||
|
||||
pr_debug("%p\n", priv);
|
||||
|
|
@ -1782,51 +1821,19 @@ restart:
|
|||
for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
|
||||
hlist_for_each_entry_safe(entry, node, next,
|
||||
&priv->lec_arp_tables[i], next) {
|
||||
if ((entry->flags) & LEC_REMOTE_FLAG &&
|
||||
priv->topology_change)
|
||||
time_to_check = priv->forward_delay_time;
|
||||
else
|
||||
time_to_check = priv->aging_time;
|
||||
if (__lec_arp_check_expire(entry, now, priv)) {
|
||||
struct sk_buff *skb;
|
||||
struct atm_vcc *vcc = entry->vcc;
|
||||
|
||||
pr_debug("About to expire: %lx - %lx > %lx\n",
|
||||
now, entry->last_used, time_to_check);
|
||||
if (time_after(now, entry->last_used + time_to_check) &&
|
||||
!(entry->flags & LEC_PERMANENT_FLAG) &&
|
||||
!(entry->mac_addr[0] & 0x01)) { /* LANE2: 7.1.20 */
|
||||
/* Remove entry */
|
||||
pr_debug("Entry timed out\n");
|
||||
lec_arp_remove(priv, entry);
|
||||
spin_unlock_irqrestore(&priv->lec_arp_lock,
|
||||
flags);
|
||||
while ((skb = skb_dequeue(&entry->tx_wait)))
|
||||
lec_send(vcc, skb);
|
||||
entry->last_used = jiffies;
|
||||
entry->status = ESI_FORWARD_DIRECT;
|
||||
lec_arp_put(entry);
|
||||
} else {
|
||||
/* Something else */
|
||||
if ((entry->status == ESI_VC_PENDING ||
|
||||
entry->status == ESI_ARP_PENDING) &&
|
||||
time_after_eq(now,
|
||||
entry->timestamp +
|
||||
priv->max_unknown_frame_time)) {
|
||||
entry->timestamp = jiffies;
|
||||
entry->packets_flooded = 0;
|
||||
if (entry->status == ESI_VC_PENDING)
|
||||
send_to_lecd(priv, l_svc_setup,
|
||||
entry->mac_addr,
|
||||
entry->atm_addr,
|
||||
NULL);
|
||||
}
|
||||
if (entry->status == ESI_FLUSH_PENDING &&
|
||||
time_after_eq(now, entry->timestamp +
|
||||
priv->path_switching_delay)) {
|
||||
struct sk_buff *skb;
|
||||
struct atm_vcc *vcc = entry->vcc;
|
||||
|
||||
lec_arp_hold(entry);
|
||||
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
|
||||
while ((skb = skb_dequeue(&entry->tx_wait)) != NULL)
|
||||
lec_send(vcc, skb);
|
||||
entry->last_used = jiffies;
|
||||
entry->status = ESI_FORWARD_DIRECT;
|
||||
lec_arp_put(entry);
|
||||
goto restart;
|
||||
}
|
||||
goto restart;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -2237,7 +2244,7 @@ restart:
|
|||
lec_arp_hold(entry);
|
||||
spin_unlock_irqrestore(&priv->lec_arp_lock,
|
||||
flags);
|
||||
while ((skb = skb_dequeue(&entry->tx_wait)) != NULL)
|
||||
while ((skb = skb_dequeue(&entry->tx_wait)))
|
||||
lec_send(vcc, skb);
|
||||
entry->last_used = jiffies;
|
||||
entry->status = ESI_FORWARD_DIRECT;
|
||||
|
|
|
|||
Loading…
Reference in New Issue