This patch fixes a critical bug that was introduced in 3.9

related to VLAN tagging FCoE frames.
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Merge tag 'critical_fix_for_3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/rwlove/fcoe

Pull FCoE fix from Robert W Love:
 "This patch fixes a critical bug that was introduced in 3.9 related to
  VLAN tagging FCoE frames"

* tag 'critical_fix_for_3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/rwlove/fcoe:
  fcoe: Use correct API to set vlan tag for FCoE Ethertype skbs

drivers/scsi/fcoe/fcoe.c

@@ -1656,9 +1656,12 @@ static int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp)
 
 	if (fcoe->netdev->priv_flags & IFF_802_1Q_VLAN &&
 	    fcoe->realdev->features & NETIF_F_HW_VLAN_CTAG_TX) {
-		skb->vlan_tci = VLAN_TAG_PRESENT |
-				vlan_dev_vlan_id(fcoe->netdev);
+		/* must set skb->dev before calling vlan_put_tag */
 		skb->dev = fcoe->realdev;
+		skb = __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
+					     vlan_dev_vlan_id(fcoe->netdev));
+		if (!skb)
+			return -ENOMEM;
 	} else
 		skb->dev = fcoe->netdev;