NFC: No need to apply twice the modulo op to LLCP's recv_n

recv_n is set properly when receiving an HDLC frame.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/nfc/llcp/commands.c

@@ -522,7 +522,7 @@ int nfc_llcp_send_rr(struct nfc_llcp_sock *sock)
 
 	skb_put(skb, LLCP_SEQUENCE_SIZE);
 
-	skb->data[2] = sock->recv_n % 16;
+	skb->data[2] = sock->recv_n;
 
 	skb_queue_head(&local->tx_queue, skb);
 

net/nfc/llcp/llcp.c

@@ -428,7 +428,7 @@ static u8 nfc_llcp_nr(struct sk_buff *pdu)
 
 static void nfc_llcp_set_nrns(struct nfc_llcp_sock *sock, struct sk_buff *pdu)
 {
-	pdu->data[2] = (sock->send_n << 4) | (sock->recv_n % 16);
+	pdu->data[2] = (sock->send_n << 4) | (sock->recv_n);
 	sock->send_n = (sock->send_n + 1) % 16;
 	sock->recv_ack_n = (sock->recv_n - 1) % 16;
 }