diff options
| -rw-r--r-- | drivers/net/loopback.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c index 2617320..d6997ae 100644 --- a/drivers/net/loopback.c +++ b/drivers/net/loopback.c @@ -154,6 +154,7 @@ static int loopback_xmit(struct sk_buff *skb, struct net_device *dev) #endif dev->last_rx = jiffies; + /* it's OK to use per_cpu_ptr() because BHs are off */ pcpu_lstats = netdev_priv(dev); lb_stats = per_cpu_ptr(pcpu_lstats, smp_processor_id()); lb_stats->bytes += skb->len; @@ -221,7 +222,8 @@ static void loopback_dev_free(struct net_device *dev) } /* - * The loopback device is special. There is only one instance. + * The loopback device is special. There is only one instance + * per network namespace. */ static void loopback_setup(struct net_device *dev) { |
