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iptunnel: use new function dev_fetch_sw_netstats

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Simplify the code by using new function dev_fetch_sw_netstats().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/050f9a83-b195-a3d6-edbd-91a59040be21@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Heiner Kallweit 2020-10-12 10:17:07 +02:00 committed by Jakub Kicinski
parent a0d2698101
commit cf89f18fa4
1 changed files with 1 additions and 22 deletions
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23
net/ipv4/ip_tunnel_core.c
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@ -433,29 +433,8 @@ EXPORT_SYMBOL(skb_tunnel_check_pmtu);
void ip_tunnel_get_stats64(struct net_device *dev,
struct rtnl_link_stats64 *tot)
{
int i;
netdev_stats_to_stats64(tot, &dev->stats);
for_each_possible_cpu(i) {
const struct pcpu_sw_netstats *tstats =
per_cpu_ptr(dev->tstats, i);
u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
unsigned int start;
do {
start = u64_stats_fetch_begin_irq(&tstats->syncp);
rx_packets = tstats->rx_packets;
tx_packets = tstats->tx_packets;
rx_bytes = tstats->rx_bytes;
tx_bytes = tstats->tx_bytes;
} while (u64_stats_fetch_retry_irq(&tstats->syncp, start));
tot->rx_packets += rx_packets;
tot->tx_packets += tx_packets;
tot->rx_bytes += rx_bytes;
tot->tx_bytes += tx_bytes;
}
dev_fetch_sw_netstats(tot, dev->tstats);
}
EXPORT_SYMBOL_GPL(ip_tunnel_get_stats64);