ipv6: ipv6_chk_prefix() rcu conversion
Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1880,22 +1880,20 @@ EXPORT_SYMBOL(ipv6_chk_custom_prefix);
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int ipv6_chk_prefix(const struct in6_addr *addr, struct net_device *dev)
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{
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struct inet6_dev *idev;
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struct inet6_ifaddr *ifa;
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const struct inet6_ifaddr *ifa;
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const struct inet6_dev *idev;
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int onlink;
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onlink = 0;
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rcu_read_lock();
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idev = __in6_dev_get(dev);
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if (idev) {
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read_lock_bh(&idev->lock);
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list_for_each_entry(ifa, &idev->addr_list, if_list) {
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list_for_each_entry_rcu(ifa, &idev->addr_list, if_list) {
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onlink = ipv6_prefix_equal(addr, &ifa->addr,
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ifa->prefix_len);
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if (onlink)
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break;
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}
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read_unlock_bh(&idev->lock);
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}
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rcu_read_unlock();
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return onlink;
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