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authorSabrina Dubroca <sd@queasysnail.net>2017-07-21 13:49:29 +0300
committerDavid S. Miller <davem@davemloft.net>2017-07-24 23:52:59 +0300
commit7a27fc6d536b36a29c0ed4bfff7035420f4df216 (patch)
treea3633eddac899dba0e748d375f3906d61e5765cf /net/ipv4/udp_tunnel.c
parentd764a122cc7af7ab1c40c08745f0fcd33cc2f7db (diff)
downloadlinux-7a27fc6d536b36a29c0ed4bfff7035420f4df216.tar.xz
net: check UDP tunnel RX port offload feature before calling tunnel ndo ndo
If NETIF_F_RX_UDP_TUNNEL_PORT was disabled on a given netdevice, skip the tunnel offload ndo call during tunnel port creation and deletion. Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp_tunnel.c')
-rw-r--r--net/ipv4/udp_tunnel.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/ipv4/udp_tunnel.c b/net/ipv4/udp_tunnel.c
index 58bd39fb14b4..0d3f14cdc524 100644
--- a/net/ipv4/udp_tunnel.c
+++ b/net/ipv4/udp_tunnel.c
@@ -82,7 +82,8 @@ void udp_tunnel_push_rx_port(struct net_device *dev, struct socket *sock,
struct sock *sk = sock->sk;
struct udp_tunnel_info ti;
- if (!dev->netdev_ops->ndo_udp_tunnel_add)
+ if (!dev->netdev_ops->ndo_udp_tunnel_add ||
+ !(dev->features & NETIF_F_RX_UDP_TUNNEL_PORT))
return;
ti.type = type;
@@ -109,6 +110,8 @@ void udp_tunnel_notify_add_rx_port(struct socket *sock, unsigned short type)
for_each_netdev_rcu(net, dev) {
if (!dev->netdev_ops->ndo_udp_tunnel_add)
continue;
+ if (!(dev->features & NETIF_F_RX_UDP_TUNNEL_PORT))
+ continue;
dev->netdev_ops->ndo_udp_tunnel_add(dev, &ti);
}
rcu_read_unlock();
@@ -131,6 +134,8 @@ void udp_tunnel_notify_del_rx_port(struct socket *sock, unsigned short type)
for_each_netdev_rcu(net, dev) {
if (!dev->netdev_ops->ndo_udp_tunnel_del)
continue;
+ if (!(dev->features & NETIF_F_RX_UDP_TUNNEL_PORT))
+ continue;
dev->netdev_ops->ndo_udp_tunnel_del(dev, &ti);
}
rcu_read_unlock();