diff options
Diffstat (limited to 'net/l3mdev/l3mdev.c')
| -rw-r--r-- | net/l3mdev/l3mdev.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/net/l3mdev/l3mdev.c b/net/l3mdev/l3mdev.c index 898d01e0f87b..6651a78e100c 100644 --- a/net/l3mdev/l3mdev.c +++ b/net/l3mdev/l3mdev.c @@ -112,12 +112,18 @@ struct dst_entry *l3mdev_get_rt6_dst(struct net *net, struct dst_entry *dst = NULL; struct net_device *dev; - dev = dev_get_by_index(net, fl6->flowi6_oif); - if (dev) { - if (netif_is_l3_master(dev) && + if (fl6->flowi6_oif) { + rcu_read_lock(); + + dev = dev_get_by_index_rcu(net, fl6->flowi6_oif); + if (dev && netif_is_l3_slave(dev)) + dev = netdev_master_upper_dev_get_rcu(dev); + + if (dev && netif_is_l3_master(dev) && dev->l3mdev_ops->l3mdev_get_rt6_dst) dst = dev->l3mdev_ops->l3mdev_get_rt6_dst(dev, fl6); - dev_put(dev); + + rcu_read_unlock(); } return dst; @@ -141,6 +147,9 @@ int l3mdev_get_saddr(struct net *net, int ifindex, struct flowi4 *fl4) rcu_read_lock(); dev = dev_get_by_index_rcu(net, ifindex); + if (dev && netif_is_l3_slave(dev)) + dev = netdev_master_upper_dev_get_rcu(dev); + if (dev && netif_is_l3_master(dev) && dev->l3mdev_ops->l3mdev_get_saddr) rc = dev->l3mdev_ops->l3mdev_get_saddr(dev, fl4); |