[NET] drivers/net: statistics cleanup #1 -- save memory and shrink code
We now have struct net_device_stats embedded in struct net_device,
and the default ->get_stats() hook does the obvious thing for us.
Run through drivers/net/* and remove the driver-local storage of
statistics, and driver-local ->get_stats() hook where applicable.
This was just the low-hanging fruit in drivers/net; plenty more drivers
remain to be updated.
[ Resolved conflicts with napi_struct changes and fix sunqe build
regression... -DaveM ]
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index edc736e..fab055f 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -795,6 +795,7 @@
static int
spider_net_release_tx_chain(struct spider_net_card *card, int brutal)
{
+ struct net_device *dev = card->netdev;
struct spider_net_descr_chain *chain = &card->tx_chain;
struct spider_net_descr *descr;
struct spider_net_hw_descr *hwdescr;
@@ -815,8 +816,8 @@
status = spider_net_get_descr_status(hwdescr);
switch (status) {
case SPIDER_NET_DESCR_COMPLETE:
- card->netdev_stats.tx_packets++;
- card->netdev_stats.tx_bytes += descr->skb->len;
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += descr->skb->len;
break;
case SPIDER_NET_DESCR_CARDOWNED:
@@ -835,11 +836,11 @@
if (netif_msg_tx_err(card))
dev_err(&card->netdev->dev, "forcing end of tx descriptor "
"with status x%02x\n", status);
- card->netdev_stats.tx_errors++;
+ dev->stats.tx_errors++;
break;
default:
- card->netdev_stats.tx_dropped++;
+ dev->stats.tx_dropped++;
if (!brutal) {
spin_unlock_irqrestore(&chain->lock, flags);
return 1;
@@ -919,7 +920,7 @@
spider_net_release_tx_chain(card, 0);
if (spider_net_prepare_tx_descr(card, skb) != 0) {
- card->netdev_stats.tx_dropped++;
+ netdev->stats.tx_dropped++;
netif_stop_queue(netdev);
return NETDEV_TX_BUSY;
}
@@ -979,16 +980,12 @@
spider_net_pass_skb_up(struct spider_net_descr *descr,
struct spider_net_card *card)
{
- struct spider_net_hw_descr *hwdescr= descr->hwdescr;
- struct sk_buff *skb;
- struct net_device *netdev;
- u32 data_status, data_error;
+ struct spider_net_hw_descr *hwdescr = descr->hwdescr;
+ struct sk_buff *skb = descr->skb;
+ struct net_device *netdev = card->netdev;
+ u32 data_status = hwdescr->data_status;
+ u32 data_error = hwdescr->data_error;
- data_status = hwdescr->data_status;
- data_error = hwdescr->data_error;
- netdev = card->netdev;
-
- skb = descr->skb;
skb_put(skb, hwdescr->valid_size);
/* the card seems to add 2 bytes of junk in front
@@ -1015,8 +1012,8 @@
}
/* update netdevice statistics */
- card->netdev_stats.rx_packets++;
- card->netdev_stats.rx_bytes += skb->len;
+ netdev->stats.rx_packets++;
+ netdev->stats.rx_bytes += skb->len;
/* pass skb up to stack */
netif_receive_skb(skb);
@@ -1184,6 +1181,7 @@
static int
spider_net_decode_one_descr(struct spider_net_card *card)
{
+ struct net_device *dev = card->netdev;
struct spider_net_descr_chain *chain = &card->rx_chain;
struct spider_net_descr *descr = chain->tail;
struct spider_net_hw_descr *hwdescr = descr->hwdescr;
@@ -1210,9 +1208,9 @@
(status == SPIDER_NET_DESCR_PROTECTION_ERROR) ||
(status == SPIDER_NET_DESCR_FORCE_END) ) {
if (netif_msg_rx_err(card))
- dev_err(&card->netdev->dev,
+ dev_err(&dev->dev,
"dropping RX descriptor with state %d\n", status);
- card->netdev_stats.rx_dropped++;
+ dev->stats.rx_dropped++;
goto bad_desc;
}
@@ -1315,20 +1313,6 @@
}
/**
- * spider_net_get_stats - get interface statistics
- * @netdev: interface device structure
- *
- * returns the interface statistics residing in the spider_net_card struct
- */
-static struct net_device_stats *
-spider_net_get_stats(struct net_device *netdev)
-{
- struct spider_net_card *card = netdev_priv(netdev);
- struct net_device_stats *stats = &card->netdev_stats;
- return stats;
-}
-
-/**
* spider_net_change_mtu - changes the MTU of an interface
* @netdev: interface device structure
* @new_mtu: new MTU value
@@ -2290,7 +2274,6 @@
netdev->open = &spider_net_open;
netdev->stop = &spider_net_stop;
netdev->hard_start_xmit = &spider_net_xmit;
- netdev->get_stats = &spider_net_get_stats;
netdev->set_multicast_list = &spider_net_set_multi;
netdev->set_mac_address = &spider_net_set_mac;
netdev->change_mtu = &spider_net_change_mtu;