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path: root/drivers/net/loopback.c
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Diffstat (limited to 'drivers/net/loopback.c')
-rw-r--r--drivers/net/loopback.c28
1 files changed, 6 insertions, 22 deletions
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index 9a099679532..2d9663a1c54 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -64,7 +64,6 @@ struct pcpu_lstats {
u64 packets;
u64 bytes;
struct u64_stats_sync syncp;
- unsigned long drops;
};
/*
@@ -74,7 +73,6 @@ struct pcpu_lstats {
static netdev_tx_t loopback_xmit(struct sk_buff *skb,
struct net_device *dev)
{
- struct pcpu_lstats __percpu *pcpu_lstats;
struct pcpu_lstats *lb_stats;
int len;
@@ -83,8 +81,7 @@ static netdev_tx_t loopback_xmit(struct sk_buff *skb,
skb->protocol = eth_type_trans(skb, dev);
/* it's OK to use per_cpu_ptr() because BHs are off */
- pcpu_lstats = (void __percpu __force *)dev->ml_priv;
- lb_stats = this_cpu_ptr(pcpu_lstats);
+ lb_stats = this_cpu_ptr(dev->lstats);
len = skb->len;
if (likely(netif_rx(skb) == NET_RX_SUCCESS)) {
@@ -92,8 +89,7 @@ static netdev_tx_t loopback_xmit(struct sk_buff *skb,
lb_stats->bytes += len;
lb_stats->packets++;
u64_stats_update_end(&lb_stats->syncp);
- } else
- lb_stats->drops++;
+ }
return NETDEV_TX_OK;
}
@@ -101,32 +97,26 @@ static netdev_tx_t loopback_xmit(struct sk_buff *skb,
static struct rtnl_link_stats64 *loopback_get_stats64(struct net_device *dev,
struct rtnl_link_stats64 *stats)
{
- const struct pcpu_lstats __percpu *pcpu_lstats;
u64 bytes = 0;
u64 packets = 0;
- u64 drops = 0;
int i;
- pcpu_lstats = (void __percpu __force *)dev->ml_priv;
for_each_possible_cpu(i) {
const struct pcpu_lstats *lb_stats;
u64 tbytes, tpackets;
unsigned int start;
- lb_stats = per_cpu_ptr(pcpu_lstats, i);
+ lb_stats = per_cpu_ptr(dev->lstats, i);
do {
start = u64_stats_fetch_begin(&lb_stats->syncp);
tbytes = lb_stats->bytes;
tpackets = lb_stats->packets;
} while (u64_stats_fetch_retry(&lb_stats->syncp, start));
- drops += lb_stats->drops;
bytes += tbytes;
packets += tpackets;
}
stats->rx_packets = packets;
stats->tx_packets = packets;
- stats->rx_dropped = drops;
- stats->rx_errors = drops;
stats->rx_bytes = bytes;
stats->tx_bytes = bytes;
return stats;
@@ -147,22 +137,16 @@ static const struct ethtool_ops loopback_ethtool_ops = {
static int loopback_dev_init(struct net_device *dev)
{
- struct pcpu_lstats __percpu *lstats;
-
- lstats = alloc_percpu(struct pcpu_lstats);
- if (!lstats)
+ dev->lstats = alloc_percpu(struct pcpu_lstats);
+ if (!dev->lstats)
return -ENOMEM;
- dev->ml_priv = (void __force *)lstats;
return 0;
}
static void loopback_dev_free(struct net_device *dev)
{
- struct pcpu_lstats __percpu *lstats =
- (void __percpu __force *)dev->ml_priv;
-
- free_percpu(lstats);
+ free_percpu(dev->lstats);
free_netdev(dev);
}