diff options
Diffstat (limited to 'drivers/net/loopback.c')
| -rw-r--r-- | drivers/net/loopback.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c index c8840c3b9a1b..1fb6ce6843ad 100644 --- a/drivers/net/loopback.c +++ b/drivers/net/loopback.c @@ -54,6 +54,7 @@ #include <linux/percpu.h> #include <linux/net_tstamp.h> #include <net/net_namespace.h> +#include <net/netdev_lock.h> #include <linux/u64_stats_sync.h> /* blackhole_netdev - a device used for dsts that are marked expired! @@ -172,7 +173,7 @@ static void gen_lo_setup(struct net_device *dev, dev->flags = IFF_LOOPBACK; dev->priv_flags |= IFF_LIVE_ADDR_CHANGE | IFF_NO_QUEUE; dev->lltx = true; - dev->netns_local = true; + dev->netns_immutable = true; netif_keep_dst(dev); dev->hw_features = NETIF_F_GSO_SOFTWARE; dev->features = NETIF_F_SG | NETIF_F_FRAGLIST @@ -244,8 +245,22 @@ static netdev_tx_t blackhole_netdev_xmit(struct sk_buff *skb, return NETDEV_TX_OK; } +static int blackhole_neigh_output(struct neighbour *n, struct sk_buff *skb) +{ + kfree_skb(skb); + return 0; +} + +static int blackhole_neigh_construct(struct net_device *dev, + struct neighbour *n) +{ + n->output = blackhole_neigh_output; + return 0; +} + static const struct net_device_ops blackhole_netdev_ops = { .ndo_start_xmit = blackhole_netdev_xmit, + .ndo_neigh_construct = blackhole_neigh_construct, }; /* This is a dst-dummy device used specifically for invalidated |