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authorDavid S. Miller <davem@davemloft.net>2008-09-21 21:38:26 -0700
committerDavid S. Miller <davem@davemloft.net>2008-09-21 21:38:26 -0700
commitceade961c4c8d8bc033dc7907047818c9525c326 (patch)
tree96a53d443e934f4726fd9ef5ee049c09d6d409c3 /drivers/atm
parent43f59c89399fd76883a06c551f24794e98409432 (diff)
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atm: idt77252: Use generic SKB queue management instead of home-grown scheme.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/atm')
-rw-r--r--drivers/atm/idt77252.c32
-rw-r--r--drivers/atm/idt77252.h4
2 files changed, 10 insertions, 26 deletions
diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index 3a504e9..e33ae00 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -1114,11 +1114,8 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
rpp = &vc->rcv.rx_pool;
+ __skb_queue_tail(&rpp->queue, skb);
rpp->len += skb->len;
- if (!rpp->count++)
- rpp->first = skb;
- *rpp->last = skb;
- rpp->last = &skb->next;
if (stat & SAR_RSQE_EPDU) {
unsigned char *l1l2;
@@ -1145,7 +1142,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
atomic_inc(&vcc->stats->rx_err);
return;
}
- if (rpp->count > 1) {
+ if (skb_queue_len(&rpp->queue) > 1) {
struct sk_buff *sb;
skb = dev_alloc_skb(rpp->len);
@@ -1161,12 +1158,9 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
dev_kfree_skb(skb);
return;
}
- sb = rpp->first;
- for (i = 0; i < rpp->count; i++) {
+ skb_queue_walk(&rpp->queue, sb)
memcpy(skb_put(skb, sb->len),
sb->data, sb->len);
- sb = sb->next;
- }
recycle_rx_pool_skb(card, rpp);
@@ -1180,7 +1174,6 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
return;
}
- skb->next = NULL;
flush_rx_pool(card, rpp);
if (!atm_charge(vcc, skb->truesize)) {
@@ -1918,25 +1911,18 @@ recycle_rx_skb(struct idt77252_dev *card, struct sk_buff *skb)
static void
flush_rx_pool(struct idt77252_dev *card, struct rx_pool *rpp)
{
+ skb_queue_head_init(&rpp->queue);
rpp->len = 0;
- rpp->count = 0;
- rpp->first = NULL;
- rpp->last = &rpp->first;
}
static void
recycle_rx_pool_skb(struct idt77252_dev *card, struct rx_pool *rpp)
{
- struct sk_buff *skb, *next;
- int i;
+ struct sk_buff *skb, *tmp;
- skb = rpp->first;
- for (i = 0; i < rpp->count; i++) {
- next = skb->next;
- skb->next = NULL;
+ skb_queue_walk_safe(&rpp->queue, skb, tmp)
recycle_rx_skb(card, skb);
- skb = next;
- }
+
flush_rx_pool(card, rpp);
}
@@ -2537,7 +2523,7 @@ idt77252_close(struct atm_vcc *vcc)
waitfor_idle(card);
spin_unlock_irqrestore(&card->cmd_lock, flags);
- if (vc->rcv.rx_pool.count) {
+ if (skb_queue_len(&vc->rcv.rx_pool.queue) != 0) {
DPRINTK("%s: closing a VC with pending rx buffers.\n",
card->name);
@@ -2970,7 +2956,7 @@ close_card_oam(struct idt77252_dev *card)
waitfor_idle(card);
spin_unlock_irqrestore(&card->cmd_lock, flags);
- if (vc->rcv.rx_pool.count) {
+ if (skb_queue_len(&vc->rcv.rx_pool.queue) != 0) {
DPRINTK("%s: closing a VC "
"with pending rx buffers.\n",
card->name);
diff --git a/drivers/atm/idt77252.h b/drivers/atm/idt77252.h
index e83eaf1..5042bb2 100644
--- a/drivers/atm/idt77252.h
+++ b/drivers/atm/idt77252.h
@@ -173,10 +173,8 @@ struct scq_info
};
struct rx_pool {
- struct sk_buff *first;
- struct sk_buff **last;
+ struct sk_buff_head queue;
unsigned int len;
- unsigned int count;
};
struct aal1 {