[INET]: Remove no longer needed ->equal callback

Since this callback is used to check for conflicts in
hashtable when inserting a newly created frag queue, we can
do the same by checking for matching the queue with the 
argument, used to create one.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 6ba98eb..3ed09dd 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -174,7 +174,7 @@
 EXPORT_SYMBOL(inet_frag_evictor);
 
 static struct inet_frag_queue *inet_frag_intern(struct inet_frag_queue *qp_in,
-		struct inet_frags *f, unsigned int hash)
+		struct inet_frags *f, unsigned int hash, void *arg)
 {
 	struct inet_frag_queue *qp;
 #ifdef CONFIG_SMP
@@ -188,7 +188,7 @@
 	 * promoted read lock to write lock.
 	 */
 	hlist_for_each_entry(qp, n, &f->hash[hash], list) {
-		if (f->equal(qp, qp_in)) {
+		if (f->match(qp, arg)) {
 			atomic_inc(&qp->refcnt);
 			write_unlock(&f->lock);
 			qp_in->last_in |= COMPLETE;
@@ -235,7 +235,7 @@
 	if (q == NULL)
 		return NULL;
 
-	return inet_frag_intern(q, f, hash);
+	return inet_frag_intern(q, f, hash, arg);
 }
 
 struct inet_frag_queue *inet_frag_find(struct inet_frags *f, void *key,