-/* Find the correct entry in the "incomplete datagrams" queue for
- * this IP datagram, and create new one, if nothing is found.
- */
-static inline struct ipq *ip_find(struct iphdr *iph, u32 user)
-{
- __be16 id = iph->id;
- __be32 saddr = iph->saddr;
- __be32 daddr = iph->daddr;
- __u8 protocol = iph->protocol;
- unsigned int hash;
- struct ipq *qp;
- struct hlist_node *n;
-
- read_lock(&ip4_frags.lock);
- hash = ipqhashfn(id, saddr, daddr, protocol);
- hlist_for_each_entry(qp, n, &ip4_frags.hash[hash], q.list) {
- if (qp->id == id &&
- qp->saddr == saddr &&
- qp->daddr == daddr &&
- qp->protocol == protocol &&
- qp->user == user) {
- atomic_inc(&qp->q.refcnt);
- read_unlock(&ip4_frags.lock);
- return qp;
- }
- }
- read_unlock(&ip4_frags.lock);
-
- return ip_frag_create(iph, user, hash);
-}
-