[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/ipv4/icmp.c b/net/ipv4/icmp.c
index ff9a8e6..f38f093 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -351,7 +351,7 @@
struct sock *sk;
struct sk_buff *skb;
- sk = icmp_sk(rt->u.dst.dev->nd_net);
+ sk = icmp_sk(dev_net(rt->u.dst.dev));
if (ip_append_data(sk, icmp_glue_bits, icmp_param,
icmp_param->data_len+icmp_param->head_len,
icmp_param->head_len,
@@ -382,7 +382,7 @@
{
struct ipcm_cookie ipc;
struct rtable *rt = skb->rtable;
- struct net *net = rt->u.dst.dev->nd_net;
+ struct net *net = dev_net(rt->u.dst.dev);
struct sock *sk = icmp_sk(net);
struct inet_sock *inet = inet_sk(sk);
__be32 daddr;
@@ -447,7 +447,7 @@
if (!rt)
goto out;
- net = rt->u.dst.dev->nd_net;
+ net = dev_net(rt->u.dst.dev);
sk = icmp_sk(net);
/*
@@ -677,7 +677,7 @@
u32 info = 0;
struct net *net;
- net = skb->dst->dev->nd_net;
+ net = dev_net(skb->dst->dev);
/*
* Incomplete header ?
