tun: use tun_sk instead container_of
Using macro tun_sk is more clear and shorter. However tun.c has tun_sk, but doesn't use it. Signed-off-by: Vitaliy Gusev <vgusev@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -849,13 +849,13 @@ static void tun_sock_write_space(struct sock *sk)
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if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
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wake_up_interruptible_sync(sk->sk_sleep);
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tun = container_of(sk, struct tun_sock, sk)->tun;
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tun = tun_sk(sk)->tun;
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kill_fasync(&tun->fasync, SIGIO, POLL_OUT);
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}
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static void tun_sock_destruct(struct sock *sk)
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{
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free_netdev(container_of(sk, struct tun_sock, sk)->tun->dev);
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free_netdev(tun_sk(sk)->tun->dev);
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}
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static struct proto tun_proto = {
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@ -990,7 +990,7 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
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sk->sk_write_space = tun_sock_write_space;
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sk->sk_sndbuf = INT_MAX;
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container_of(sk, struct tun_sock, sk)->tun = tun;
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tun_sk(sk)->tun = tun;
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security_tun_dev_post_create(sk);
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