lcs: CCL-sequ. numbers required for protocol 802.2 only.

Sequence numbers in skbs (Receive path) are assigned only to
802.2 packets.
Signed-off-by: NKlaus D. Wacker <kdwacker@de.ibm.com>
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

drivers/s390/net/lcs.c

@@ -1793,6 +1793,7 @@ lcs_get_skb(struct lcs_card *card, char *skb_data, unsigned int skb_len)
 	skb->protocol =	card->lan_type_trans(skb, card->dev);
 	card->stats.rx_bytes += skb_len;
 	card->stats.rx_packets++;
+	if (skb->protocol == htons(ETH_P_802_2))
 		*((__u32 *)skb->cb) = ++card->pkt_seq;
 	netif_rx(skb);
 }