1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * net/dsa/tag_none.c - Traffic handling for switches with no tag
 4 * Copyright (c) 2008-2009 Marvell Semiconductor
 5 * Copyright (c) 2013 Florian Fainelli <florian@openwrt.org>
 6 *
 7 * WARNING: do not use this for new switches. In case of no hardware
 8 * tagging support, look at tag_8021q.c instead.
 9 */
10
11#include "tag.h"
12
13#define NONE_NAME	"none"
14
15static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb,
16					    struct net_device *dev)
17{
18	/* Just return the original SKB */
19	return skb;
20}
21
22static const struct dsa_device_ops none_ops = {
23	.name	= NONE_NAME,
24	.proto	= DSA_TAG_PROTO_NONE,
25	.xmit	= dsa_slave_notag_xmit,
26};
27
28module_dsa_tag_driver(none_ops);
29MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_NONE, NONE_NAME);
30MODULE_LICENSE("GPL");