[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>
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@@ -301,7 +301,7 @@ static int pppoe_device_event(struct notifier_block *this,
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{
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struct net_device *dev = (struct net_device *) ptr;
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if (dev->nd_net != &init_net)
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if (dev_net(dev) != &init_net)
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return NOTIFY_DONE;
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/* Only look at sockets that are using this specific device. */
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@@ -392,7 +392,7 @@ static int pppoe_rcv(struct sk_buff *skb,
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if (!(skb = skb_share_check(skb, GFP_ATOMIC)))
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goto out;
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if (dev->nd_net != &init_net)
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if (dev_net(dev) != &init_net)
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goto drop;
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if (!pskb_may_pull(skb, sizeof(struct pppoe_hdr)))
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@@ -424,7 +424,7 @@ static int pppoe_disc_rcv(struct sk_buff *skb,
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struct pppoe_hdr *ph;
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struct pppox_sock *po;
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if (dev->nd_net != &init_net)
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if (dev_net(dev) != &init_net)
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goto abort;
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if (!pskb_may_pull(skb, sizeof(struct pppoe_hdr)))
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