diff options
Diffstat (limited to 'drivers/net/vxlan.c')
| -rw-r--r-- | drivers/net/vxlan.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 553908adf3c5..5dadfc508ade 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1229,6 +1229,14 @@ static void vxlan_rcv(struct vxlan_sock *vs, struct sk_buff *skb, } } + rcu_read_lock(); + + if (unlikely(!(vxlan->dev->flags & IFF_UP))) { + rcu_read_unlock(); + atomic_long_inc(&vxlan->dev->rx_dropped); + goto drop; + } + stats = this_cpu_ptr(vxlan->dev->tstats); u64_stats_update_begin(&stats->syncp); stats->rx_packets++; @@ -1237,6 +1245,8 @@ static void vxlan_rcv(struct vxlan_sock *vs, struct sk_buff *skb, gro_cells_receive(&vxlan->gro_cells, skb); + rcu_read_unlock(); + return; drop: if (tun_dst) @@ -2312,6 +2322,8 @@ static void vxlan_uninit(struct net_device *dev) { struct vxlan_dev *vxlan = netdev_priv(dev); + gro_cells_destroy(&vxlan->gro_cells); + vxlan_fdb_delete_default(vxlan); free_percpu(dev->tstats); @@ -3056,7 +3068,6 @@ static void vxlan_dellink(struct net_device *dev, struct list_head *head) { struct vxlan_dev *vxlan = netdev_priv(dev); - gro_cells_destroy(&vxlan->gro_cells); list_del(&vxlan->next); unregister_netdevice_queue(dev, head); } |