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-rw-r--r--datapath/vlan.h65
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diff --git a/datapath/vlan.h b/datapath/vlan.h
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--- a/datapath/vlan.h
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-/*
- * Copyright (c) 2007-2011 Nicira, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- */
-
-#ifndef VLAN_H
-#define VLAN_H 1
-
-#include <linux/if_vlan.h>
-#include <linux/skbuff.h>
-#include <linux/version.h>
-
-/**
- * DOC: VLAN tag manipulation.
- *
- * &struct sk_buff handling of VLAN tags has evolved over time:
- *
- * In 2.6.26 and earlier, VLAN tags did not have any generic representation in
- * an skb, other than as a raw 802.1Q header inside the packet data.
- *
- * In 2.6.27 &struct sk_buff added a @vlan_tci member. Between 2.6.27 and
- * 2.6.32, its value was the raw contents of the 802.1Q TCI field, or zero if
- * no 802.1Q header was present. This worked OK except for the corner case of
- * an 802.1Q header with an all-0-bits TCI, which could not be represented.
- *
- * In 2.6.33, @vlan_tci semantics changed. Now, if an 802.1Q header is
- * present, then the VLAN_TAG_PRESENT bit is always set. This fixes the
- * all-0-bits TCI corner case.
- *
- * For compatibility we emulate the 2.6.33+ behavior on earlier kernel
- * versions. The client must not access @vlan_tci directly. Instead, use
- * vlan_get_tci() to read it or vlan_set_tci() to write it, with semantics
- * equivalent to those on 2.6.33+.
- */
-
-static inline u16 vlan_get_tci(struct sk_buff *skb)
-{
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)
- if (skb->vlan_tci)
- return skb->vlan_tci | VLAN_TAG_PRESENT;
-#endif
- return skb->vlan_tci;
-}
-
-static inline void vlan_set_tci(struct sk_buff *skb, u16 vlan_tci)
-{
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)
- vlan_tci &= ~VLAN_TAG_PRESENT;
-#endif
- skb->vlan_tci = vlan_tci;
-}
-#endif /* vlan.h */