net/dsa/tag_none.c

   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
  15 static struct sk_buff *dsa_user_notag_xmit(struct sk_buff *skb,
  16                                            struct net_device *dev)
  17 {
  18         /* Just return the original SKB */
  19         return skb;
  20 }
  21
  22 static const struct dsa_device_ops none_ops = {
  23         .name   = NONE_NAME,
  24         .proto  = DSA_TAG_PROTO_NONE,
  25         .xmit   = dsa_user_notag_xmit,
  26 };
  27
  28 module_dsa_tag_driver(none_ops);
  29 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_NONE, NONE_NAME);
  30 MODULE_DESCRIPTION("DSA no-op tag driver");
  31 MODULE_LICENSE("GPL");