提交 cfa087f6 编写于 作者: E Eric Dumazet 提交者: David S. Miller

icmp: RCU conversion in icmp_address_reply()

- rcu_read_lock() already held by caller
- use __in_dev_get_rcu() instead of in_dev_get() / in_dev_put()
- remove goto out;
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 88e7594a
......@@ -925,6 +925,7 @@ static void icmp_address(struct sk_buff *skb)
/*
* RFC1812 (4.3.3.9). A router SHOULD listen all replies, and complain
* loudly if an inconsistency is found.
* called with rcu_read_lock()
*/
static void icmp_address_reply(struct sk_buff *skb)
......@@ -935,12 +936,12 @@ static void icmp_address_reply(struct sk_buff *skb)
struct in_ifaddr *ifa;
if (skb->len < 4 || !(rt->rt_flags&RTCF_DIRECTSRC))
goto out;
return;
in_dev = in_dev_get(dev);
in_dev = __in_dev_get_rcu(dev);
if (!in_dev)
goto out;
rcu_read_lock();
return;
if (in_dev->ifa_list &&
IN_DEV_LOG_MARTIANS(in_dev) &&
IN_DEV_FORWARD(in_dev)) {
......@@ -958,9 +959,6 @@ static void icmp_address_reply(struct sk_buff *skb)
mp, dev->name, &rt->rt_src);
}
}
rcu_read_unlock();
in_dev_put(in_dev);
out:;
}
static void icmp_discard(struct sk_buff *skb)
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册