--- zzzz-none-000/linux-3.10.107/net/atm/lec.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/net/atm/lec.c	2021-02-04 17:41:59.000000000 +0000
@@ -152,7 +152,7 @@
 		atm_force_charge(priv->lecd, skb2->truesize);
 		sk = sk_atm(priv->lecd);
 		skb_queue_tail(&sk->sk_receive_queue, skb2);
-		sk->sk_data_ready(sk, skb2->len);
+		sk->sk_data_ready(sk);
 	}
 }
 #endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
@@ -410,9 +410,11 @@
 		priv->lane2_ops = NULL;
 		if (priv->lane_version > 1)
 			priv->lane2_ops = &lane2_ops;
+		rtnl_lock();
 		if (dev_set_mtu(dev, mesg->content.config.mtu))
 			pr_info("%s: change_mtu to %d failed\n",
 				dev->name, mesg->content.config.mtu);
+		rtnl_unlock();
 		priv->is_proxy = mesg->content.config.is_proxy;
 		break;
 	case l_flush_tran_id:
@@ -447,7 +449,7 @@
 			atm_force_charge(priv->lecd, skb2->truesize);
 			sk = sk_atm(priv->lecd);
 			skb_queue_tail(&sk->sk_receive_queue, skb2);
-			sk->sk_data_ready(sk, skb2->len);
+			sk->sk_data_ready(sk);
 		}
 	}
 #endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
@@ -521,7 +523,7 @@
 	if (data != NULL)
 		mesg->sizeoftlvs = data->len;
 	if (mac_addr)
-		memcpy(&mesg->content.normal.mac_addr, mac_addr, ETH_ALEN);
+		ether_addr_copy(mesg->content.normal.mac_addr, mac_addr);
 	else
 		mesg->content.normal.targetless_le_arp = 1;
 	if (atm_addr)
@@ -530,13 +532,13 @@
 	atm_force_charge(priv->lecd, skb->truesize);
 	sk = sk_atm(priv->lecd);
 	skb_queue_tail(&sk->sk_receive_queue, skb);
-	sk->sk_data_ready(sk, skb->len);
+	sk->sk_data_ready(sk);
 
 	if (data != NULL) {
 		pr_debug("about to send %d bytes of data\n", data->len);
 		atm_force_charge(priv->lecd, data->truesize);
 		skb_queue_tail(&sk->sk_receive_queue, data);
-		sk->sk_data_ready(sk, skb->len);
+		sk->sk_data_ready(sk);
 	}
 
 	return 0;
@@ -616,7 +618,7 @@
 
 		pr_debug("%s: To daemon\n", dev->name);
 		skb_queue_tail(&sk->sk_receive_queue, skb);
-		sk->sk_data_ready(sk, skb->len);
+		sk->sk_data_ready(sk);
 	} else {		/* Data frame, queue to protocol handlers */
 		struct lec_arp_table *entry;
 		unsigned char *src, *dst;
@@ -833,7 +835,6 @@
 			  loff_t *l)
 {
 	struct hlist_node *e = state->node;
-	struct lec_arp_table *tmp;
 
 	if (!e)
 		e = tbl->first;
@@ -842,9 +843,7 @@
 		--*l;
 	}
 
-	tmp = container_of(e, struct lec_arp_table, next);
-
-	hlist_for_each_entry_from(tmp, next) {
+	for (; e; e = e->next) {
 		if (--*l < 0)
 			break;
 	}
@@ -1565,7 +1564,7 @@
 		pr_info("LEC: Arp entry kmalloc failed\n");
 		return NULL;
 	}
-	memcpy(to_return->mac_addr, mac_addr, ETH_ALEN);
+	ether_addr_copy(to_return->mac_addr, mac_addr);
 	INIT_HLIST_NODE(&to_return->next);
 	setup_timer(&to_return->timer, lec_arp_expire_arp,
 			(unsigned long)to_return);
@@ -1887,7 +1886,8 @@
 					entry = tmp;
 				} else {
 					entry->status = ESI_FORWARD_DIRECT;
-					memcpy(entry->mac_addr, mac_addr, ETH_ALEN);
+					ether_addr_copy(entry->mac_addr,
+							mac_addr);
 					entry->last_used = jiffies;
 					lec_arp_add(priv, entry);
 				}
@@ -2001,7 +2001,7 @@
 		if (entry == NULL)
 			goto out;
 		memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN);
-		memset(entry->mac_addr, 0, ETH_ALEN);
+		eth_zero_addr(entry->mac_addr);
 		entry->recv_vcc = vcc;
 		entry->old_recv_push = old_push;
 		entry->status = ESI_UNKNOWN;
@@ -2086,7 +2086,7 @@
 	entry->vcc = vcc;
 	entry->old_push = old_push;
 	memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN);
-	memset(entry->mac_addr, 0, ETH_ALEN);
+	eth_zero_addr(entry->mac_addr);
 	entry->status = ESI_UNKNOWN;
 	hlist_add_head(&entry->next, &priv->lec_arp_empty_ones);
 	entry->timer.expires = jiffies + priv->vcc_timeout_period;
@@ -2263,7 +2263,7 @@
 				  &priv->lec_arp_empty_ones, next) {
 		if (vcc == entry->vcc) {
 			del_timer(&entry->timer);
-			memcpy(entry->mac_addr, src, ETH_ALEN);
+			ether_addr_copy(entry->mac_addr, src);
 			entry->status = ESI_FORWARD_DIRECT;
 			entry->last_used = jiffies;
 			/* We might have got an entry */