rxrpc: Add missing "new peer" trace

There was supposed to be a trace indicating that a new peer had been
created.  Add it.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/rxrpc/peer_object.c

@@ -209,6 +209,7 @@ static void rxrpc_assess_MTU_size(struct rxrpc_sock *rx,
  */
 struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *local, gfp_t gfp)
 {
+	const void *here = __builtin_return_address(0);
 	struct rxrpc_peer *peer;
 
 	_enter("");
@@ -230,6 +231,7 @@ struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *local, gfp_t gfp)
 			peer->cong_cwnd = 3;
 		else
 			peer->cong_cwnd = 4;
+		trace_rxrpc_peer(peer, rxrpc_peer_new, 1, here);
 	}
 
 	_leave(" = %p", peer);