diff options
| author | Jeff Garzik <jeff@garzik.org> | 2007-10-03 17:41:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:51:16 -0700 |
| commit | 09f75cd7bf13720738e6a196cc0107ce9a5bd5a0 (patch) | |
| tree | 4c85b0b395abe7f88c87162fc22570e5de255cb1 /drivers/net/tun.c | |
| parent | ff8ac60948ba819b89e9c87083e8050fc2f89999 (diff) | |
| download | linux-09f75cd7bf13720738e6a196cc0107ce9a5bd5a0.tar.bz2 | |
[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>
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 8b3ec335385c..d279151f065d 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -110,7 +110,7 @@ static int tun_net_xmit(struct sk_buff *skb, struct net_device *dev) /* We won't see all dropped packets individually, so overrun * error is more appropriate. */ - tun->stats.tx_fifo_errors++; + dev->stats.tx_fifo_errors++; } else { /* Single queue mode. * Driver handles dropping of all packets itself. */ @@ -129,7 +129,7 @@ static int tun_net_xmit(struct sk_buff *skb, struct net_device *dev) return 0; drop: - tun->stats.tx_dropped++; + dev->stats.tx_dropped++; kfree_skb(skb); return 0; } @@ -172,12 +172,6 @@ tun_net_mclist(struct net_device *dev) } } -static struct net_device_stats *tun_net_stats(struct net_device *dev) -{ - struct tun_struct *tun = netdev_priv(dev); - return &tun->stats; -} - /* Initialize net device. */ static void tun_net_init(struct net_device *dev) { @@ -250,14 +244,14 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv, align = NET_IP_ALIGN; if (!(skb = alloc_skb(len + align, GFP_KERNEL))) { - tun->stats.rx_dropped++; + tun->dev->stats.rx_dropped++; return -ENOMEM; } if (align) skb_reserve(skb, align); if (memcpy_fromiovec(skb_put(skb, len), iv, len)) { - tun->stats.rx_dropped++; + tun->dev->stats.rx_dropped++; kfree_skb(skb); return -EFAULT; } @@ -279,8 +273,8 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv, netif_rx_ni(skb); tun->dev->last_rx = jiffies; - tun->stats.rx_packets++; - tun->stats.rx_bytes += len; + tun->dev->stats.rx_packets++; + tun->dev->stats.rx_bytes += len; return count; } @@ -336,8 +330,8 @@ static __inline__ ssize_t tun_put_user(struct tun_struct *tun, skb_copy_datagram_iovec(skb, 0, iv, len); total += len; - tun->stats.tx_packets++; - tun->stats.tx_bytes += len; + tun->dev->stats.tx_packets++; + tun->dev->stats.tx_bytes += len; return total; } @@ -438,7 +432,6 @@ static void tun_setup(struct net_device *dev) dev->open = tun_net_open; dev->hard_start_xmit = tun_net_xmit; dev->stop = tun_net_close; - dev->get_stats = tun_net_stats; dev->ethtool_ops = &tun_ethtool_ops; dev->destructor = free_netdev; } |