[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS.
Introduce per-net_device inlines: dev_net(), dev_net_set().
Without CONFIG_NET_NS, no namespace other than &init_net exists.
Let's explicitly define them to help compiler optimizations.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index a56ed21..baa290d 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -263,7 +263,7 @@
if (skb->pkt_type == PACKET_LOOPBACK)
goto out;
- if (dev->nd_net != sk->sk_net)
+ if (dev_net(dev) != sk->sk_net)
goto out;
if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
@@ -451,7 +451,7 @@
sk = pt->af_packet_priv;
po = pkt_sk(sk);
- if (dev->nd_net != sk->sk_net)
+ if (dev_net(dev) != sk->sk_net)
goto drop;
skb->dev = dev;
@@ -568,7 +568,7 @@
sk = pt->af_packet_priv;
po = pkt_sk(sk);
- if (dev->nd_net != sk->sk_net)
+ if (dev_net(dev) != sk->sk_net)
goto drop;
if (dev->header_ops) {
@@ -1450,7 +1450,7 @@
struct sock *sk;
struct hlist_node *node;
struct net_device *dev = data;
- struct net *net = dev->nd_net;
+ struct net *net = dev_net(dev);
read_lock(&net->packet.sklist_lock);
sk_for_each(sk, node, &net->packet.sklist) {