Please see lines 1250-1251.


        case TIOCINQ:
                lock_sock(sk);
                skb = skb_peek(&scp->other_receive_queue);
                if (skb) {
                        amount = skb->len;
                } else {
                        skb_queue_walk(&sk->sk_receive_queue, skb)     <<<<<
                                amount += skb->len;                    <<<<<
                }
                release_sock(sk);
                err = put_user(amount, (int __user *)arg);
                break;



or is this some kind of GCC nested function magic?


commit bec571ec762a4cf855ad4446f833086fc154b60e
Author: David S. Miller <da...@davemloft.net>
Date:   Thu May 28 16:43:52 2009 -0700

    decnet: Use SKB queue and list helpers instead of doing it by-hand.



thanks.
-- 
~Randy
Reported-by: Randy Dunlap <rdun...@infradead.org>

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