--- zzzz-none-000/linux-3.10.107/drivers/scsi/fcoe/fcoe.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/scsi/fcoe/fcoe.c	2021-02-04 17:41:59.000000000 +0000
@@ -280,14 +280,14 @@
 	.eh_device_reset_handler = fc_eh_device_reset,
 	.eh_host_reset_handler = fc_eh_host_reset,
 	.slave_alloc = fc_slave_alloc,
-	.change_queue_depth = fc_change_queue_depth,
-	.change_queue_type = fc_change_queue_type,
+	.change_queue_depth = scsi_change_queue_depth,
 	.this_id = -1,
 	.cmd_per_lun = 3,
 	.can_queue = FCOE_MAX_OUTSTANDING_COMMANDS,
 	.use_clustering = ENABLE_CLUSTERING,
 	.sg_tablesize = SG_ALL,
 	.max_sectors = 0xffff,
+	.track_queue_depth = 1,
 };
 
 /**
@@ -363,7 +363,7 @@
 	 * on the ethertype for the given device
 	 */
 	fcoe->fcoe_packet_type.func = fcoe_rcv;
-	fcoe->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
+	fcoe->fcoe_packet_type.type = htons(ETH_P_FCOE);
 	fcoe->fcoe_packet_type.dev = netdev;
 	dev_add_pack(&fcoe->fcoe_packet_type);
 
@@ -408,6 +408,7 @@
 	}
 
 	ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+	ctlr->cdev = ctlr_dev;
 	fcoe = fcoe_ctlr_priv(ctlr);
 
 	dev_hold(netdev);
@@ -774,7 +775,6 @@
 	struct fcoe_port *port;
 	struct net_device *realdev;
 	int rc;
-	struct netdev_fcoe_hbainfo fdmi;
 
 	port = lport_priv(lport);
 	fcoe = port->priv;
@@ -788,9 +788,13 @@
 		return;
 
 	if (realdev->netdev_ops->ndo_fcoe_get_hbainfo) {
-		memset(&fdmi, 0, sizeof(fdmi));
+		struct netdev_fcoe_hbainfo *fdmi;
+		fdmi = kzalloc(sizeof(*fdmi), GFP_KERNEL);
+		if (!fdmi)
+			return;
+
 		rc = realdev->netdev_ops->ndo_fcoe_get_hbainfo(realdev,
-							       &fdmi);
+							       fdmi);
 		if (rc) {
 			printk(KERN_INFO "fcoe: Failed to retrieve FDMI "
 					"information from netdev.\n");
@@ -800,38 +804,39 @@
 		snprintf(fc_host_serial_number(lport->host),
 			 FC_SERIAL_NUMBER_SIZE,
 			 "%s",
-			 fdmi.serial_number);
+			 fdmi->serial_number);
 		snprintf(fc_host_manufacturer(lport->host),
 			 FC_SERIAL_NUMBER_SIZE,
 			 "%s",
-			 fdmi.manufacturer);
+			 fdmi->manufacturer);
 		snprintf(fc_host_model(lport->host),
 			 FC_SYMBOLIC_NAME_SIZE,
 			 "%s",
-			 fdmi.model);
+			 fdmi->model);
 		snprintf(fc_host_model_description(lport->host),
 			 FC_SYMBOLIC_NAME_SIZE,
 			 "%s",
-			 fdmi.model_description);
+			 fdmi->model_description);
 		snprintf(fc_host_hardware_version(lport->host),
 			 FC_VERSION_STRING_SIZE,
 			 "%s",
-			 fdmi.hardware_version);
+			 fdmi->hardware_version);
 		snprintf(fc_host_driver_version(lport->host),
 			 FC_VERSION_STRING_SIZE,
 			 "%s",
-			 fdmi.driver_version);
+			 fdmi->driver_version);
 		snprintf(fc_host_optionrom_version(lport->host),
 			 FC_VERSION_STRING_SIZE,
 			 "%s",
-			 fdmi.optionrom_version);
+			 fdmi->optionrom_version);
 		snprintf(fc_host_firmware_version(lport->host),
 			 FC_VERSION_STRING_SIZE,
 			 "%s",
-			 fdmi.firmware_version);
+			 fdmi->firmware_version);
 
 		/* Enable FDMI lport states */
 		lport->fdmi_enabled = 1;
+		kfree(fdmi);
 	} else {
 		lport->fdmi_enabled = 0;
 		printk(KERN_INFO "fcoe: No FDMI support.\n");
@@ -1436,22 +1441,28 @@
 	ctlr = fcoe_to_ctlr(fcoe);
 	lport = ctlr->lp;
 	if (unlikely(!lport)) {
-		FCOE_NETDEV_DBG(netdev, "Cannot find hba structure");
+		FCOE_NETDEV_DBG(netdev, "Cannot find hba structure\n");
 		goto err2;
 	}
 	if (!lport->link_up)
 		goto err2;
 
-	FCOE_NETDEV_DBG(netdev, "skb_info: len:%d data_len:%d head:%p "
-			"data:%p tail:%p end:%p sum:%d dev:%s",
+	FCOE_NETDEV_DBG(netdev,
+			"skb_info: len:%d data_len:%d head:%p data:%p tail:%p end:%p sum:%d dev:%s\n",
 			skb->len, skb->data_len, skb->head, skb->data,
 			skb_tail_pointer(skb), skb_end_pointer(skb),
 			skb->csum, skb->dev ? skb->dev->name : "<NULL>");
 
+
+	skb = skb_share_check(skb, GFP_ATOMIC);
+
+	if (skb == NULL)
+		return NET_RX_DROP;
+
 	eh = eth_hdr(skb);
 
 	if (is_fip_mode(ctlr) &&
-	    compare_ether_addr(eh->h_source, ctlr->dest_addr)) {
+	    !ether_addr_equal(eh->h_source, ctlr->dest_addr)) {
 		FCOE_NETDEV_DBG(netdev, "wrong source mac address:%pM\n",
 				eh->h_source);
 		goto err;
@@ -1536,13 +1547,13 @@
 		wake_up_process(fps->thread);
 	spin_unlock(&fps->fcoe_rx_list.lock);
 
-	return 0;
+	return NET_RX_SUCCESS;
 err:
 	per_cpu_ptr(lport->stats, get_cpu())->ErrorFrames++;
 	put_cpu();
 err2:
 	kfree_skb(skb);
-	return -1;
+	return NET_RX_DROP;
 }
 
 /**
@@ -1658,10 +1669,8 @@
 	    fcoe->realdev->features & NETIF_F_HW_VLAN_CTAG_TX) {
 		/* 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;
+		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
+				       vlan_dev_vlan_id(fcoe->netdev));
 	} else
 		skb->dev = fcoe->netdev;
 
@@ -1784,13 +1793,13 @@
 	lport = fr->fr_dev;
 	if (unlikely(!lport)) {
 		if (skb->destructor != fcoe_percpu_flush_done)
-			FCOE_NETDEV_DBG(skb->dev, "NULL lport in skb");
+			FCOE_NETDEV_DBG(skb->dev, "NULL lport in skb\n");
 		kfree_skb(skb);
 		return;
 	}
 
-	FCOE_NETDEV_DBG(skb->dev, "skb_info: len:%d data_len:%d "
-			"head:%p data:%p tail:%p end:%p sum:%d dev:%s",
+	FCOE_NETDEV_DBG(skb->dev,
+			"skb_info: len:%d data_len:%d head:%p data:%p tail:%p end:%p sum:%d dev:%s\n",
 			skb->len, skb->data_len,
 			skb->head, skb->data, skb_tail_pointer(skb),
 			skb_end_pointer(skb), skb->csum,
@@ -1861,9 +1870,8 @@
 
 	skb_queue_head_init(&tmp);
 
-	set_user_nice(current, -20);
+	set_user_nice(current, MIN_NICE);
 
-retry:
 	while (!kthread_should_stop()) {
 
 		spin_lock_bh(&p->fcoe_rx_list.lock);
@@ -1873,8 +1881,7 @@
 			set_current_state(TASK_INTERRUPTIBLE);
 			spin_unlock_bh(&p->fcoe_rx_list.lock);
 			schedule();
-			set_current_state(TASK_RUNNING);
-			goto retry;
+			continue;
 		}
 
 		spin_unlock_bh(&p->fcoe_rx_list.lock);
@@ -1978,7 +1985,7 @@
 {
 	struct fcoe_ctlr_device *cdev;
 	struct fc_lport *lport = NULL;
-	struct net_device *netdev = ptr;
+	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
 	struct fcoe_ctlr *ctlr;
 	struct fcoe_interface *fcoe;
 	struct fcoe_port *port;
@@ -2622,14 +2629,18 @@
 		skb_queue_head_init(&p->fcoe_rx_list);
 	}
 
+	cpu_notifier_register_begin();
+
 	for_each_online_cpu(cpu)
 		fcoe_percpu_thread_create(cpu);
 
 	/* Initialize per CPU interrupt thread */
-	rc = register_hotcpu_notifier(&fcoe_cpu_notifier);
+	rc = __register_hotcpu_notifier(&fcoe_cpu_notifier);
 	if (rc)
 		goto out_free;
 
+	cpu_notifier_register_done();
+
 	/* Setup link change notification */
 	fcoe_dev_setup();
 
@@ -2644,6 +2655,9 @@
 	for_each_online_cpu(cpu) {
 		fcoe_percpu_thread_destroy(cpu);
 	}
+
+	cpu_notifier_register_done();
+
 	mutex_unlock(&fcoe_config_mutex);
 	destroy_workqueue(fcoe_wq);
 	return rc;
@@ -2676,11 +2690,15 @@
 	}
 	rtnl_unlock();
 
-	unregister_hotcpu_notifier(&fcoe_cpu_notifier);
+	cpu_notifier_register_begin();
 
 	for_each_online_cpu(cpu)
 		fcoe_percpu_thread_destroy(cpu);
 
+	__unregister_hotcpu_notifier(&fcoe_cpu_notifier);
+
+	cpu_notifier_register_done();
+
 	mutex_unlock(&fcoe_config_mutex);
 
 	/*