~hc/RK356X_SDK_RELEASE.git

..	..	@@ -1,13 +1,8 @@
	1	+// SPDX-License-Identifier: GPL-2.0-or-later
1	2	/*
2	3	* "LAPB via ethernet" driver release 001
3	4	*
4	5	* This code REQUIRES 2.1.15 or higher/ NET3.038
5		- *
6		- * This module:
7		- * This module is free software; you can redistribute it and/or
8		- * modify it under the terms of the GNU General Public License
9		- * as published by the Free Software Foundation; either version
10		- * 2 of the License, or (at your option) any later version.
11	6	*
12	7	* This is a "pseudo" network driver to allow LAPB over Ethernet.
13	8	*
..	..	@@ -71,7 +66,7 @@
71	66	{
72	67	struct lapbethdev *lapbeth;
73	68
74		- list_for_each_entry_rcu(lapbeth, &lapbeth_devices, node) {
	69	+ list_for_each_entry_rcu(lapbeth, &lapbeth_devices, node, lockdep_rtnl_is_held()) {
75	70	if (lapbeth->ethdev == dev)
76	71	return lapbeth;
77	72	}
..	..	@@ -139,10 +134,12 @@
139	134	{
140	135	unsigned char *ptr;
141	136
142		- skb_push(skb, 1);
143		-
144		- if (skb_cow(skb, 1))
	137	+ if (skb_cow(skb, 1)) {
	138	+ kfree_skb(skb);
145	139	return NET_RX_DROP;
	140	+ }
	141	+
	142	+ skb_push(skb, 1);
146	143
147	144	ptr = skb->data;
148	145	*ptr = X25_IFACE_DATA;
..	..	@@ -180,7 +177,7 @@
180	177	case X25_IFACE_DISCONNECT:
181	178	if ((err = lapb_disconnect_request(dev)) != LAPB_OK)
182	179	pr_err("lapb_disconnect_request err: %d\n", err);
183		- /* Fall thru */
	180	+ fallthrough;
184	181	default:
185	182	goto drop;
186	183	}
..	..	@@ -344,6 +341,9 @@
344	341
345	342	ASSERT_RTNL();
346	343
	344	+ if (dev->type != ARPHRD_ETHER)
	345	+ return -EINVAL;
	346	+
347	347	ndev = alloc_netdev(sizeof(*lapbeth), "lapb%d", NET_NAME_UNKNOWN,
348	348	lapbeth_setup);
349	349	if (!ndev)
..	..	@@ -406,7 +406,7 @@
406	406	if (dev_net(dev) != &init_net)
407	407	return NOTIFY_DONE;
408	408
409		- if (!dev_is_ethdev(dev))
	409	+ if (!dev_is_ethdev(dev) && !lapbeth_get_x25_dev(dev))
410	410	return NOTIFY_DONE;
411	411
412	412	switch (event) {