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netdev: introduce dev_get_stats()

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In order for the network device ops get_stats call to be immutable, the handling
of the default internal network device stats block has to be changed. Add a new
helper function which replaces the old use of internal_get_stats.

Note: change return code to make it clear that the caller should not
go changing the returned statistics.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger
2008-11-19 21:40:23 -08:00
committed by David S. Miller
parent d314774cf2
commit eeda3fd64f
8 changed files with 33 additions and 18 deletions
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4
drivers/parisc/led.c
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@@ -360,13 +360,13 @@ static __inline__ int led_get_net_activity(void)
read_lock(&dev_base_lock);
rcu_read_lock();
for_each_netdev(&init_net, dev) {
struct net_device_stats *stats;
const struct net_device_stats *stats;
struct in_device *in_dev = __in_dev_get_rcu(dev);
if (!in_dev || !in_dev->ifa_list)
continue;
if (ipv4_is_loopback(in_dev->ifa_list->ifa_local))
continue;
stats = dev->get_stats(dev);
stats = dev_get_stats(dev);
rx_total += stats->rx_packets;
tx_total += stats->tx_packets;
}