3 files changed, 13 insertions, 24 deletions

diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 93f5d9b0e9f9..9e7b49b8062d 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -105,17 +105,8 @@ static inline void vlan_group_set_device(struct vlan_group *vg,
         array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] = dev;
 }
 
-/* VLAN tx hw acceleration helpers. */
-struct vlan_skb_tx_cookie {
-        u32     magic;
-        u32     vlan_tag;
-};
-
-#define VLAN_TX_COOKIE_MAGIC    0x564c414e      /* "VLAN" in ascii. */
-#define VLAN_TX_SKB_CB(__skb)   ((struct vlan_skb_tx_cookie *)&((__skb)->cb[0]))
-#define vlan_tx_tag_present(__skb) \
-        (VLAN_TX_SKB_CB(__skb)->magic == VLAN_TX_COOKIE_MAGIC)
-#define vlan_tx_tag_get(__skb)  (VLAN_TX_SKB_CB(__skb)->vlan_tag)
+#define vlan_tx_tag_present(__skb)      ((__skb)->vlan_tci)
+#define vlan_tx_tag_get(__skb)          ((__skb)->vlan_tci)
 
 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
 extern struct net_device *vlan_dev_real_dev(const struct net_device *dev);
@@ -210,17 +201,12 @@ static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb, u16 vlan_tci)
  * @skb: skbuff to tag
  * @vlan_tci: VLAN TCI to insert
  *
- * Puts the VLAN TCI in @skb->cb[] and lets the device do the rest
+ * Puts the VLAN TCI in @skb->vlan_tci and lets the device do the rest
  */
 static inline struct sk_buff *__vlan_hwaccel_put_tag(struct sk_buff *skb,
                                                      u16 vlan_tci)
 {
-        struct vlan_skb_tx_cookie *cookie;
-
-        cookie = VLAN_TX_SKB_CB(skb);
-        cookie->magic = VLAN_TX_COOKIE_MAGIC;
-        cookie->vlan_tag = vlan_tci;
-
+        skb->vlan_tci = vlan_tci;
         return skb;
 }
 
@@ -267,16 +253,13 @@ static inline int __vlan_get_tag(const struct sk_buff *skb, u16 *vlan_tci)
  * @skb: skbuff to query
  * @vlan_tci: buffer to store vlaue
  *
- * Returns error if @skb->cb[] is not set correctly
+ * Returns error if @skb->vlan_tci is not set correctly
  */
 static inline int __vlan_hwaccel_get_tag(const struct sk_buff *skb,
                                          u16 *vlan_tci)
 {
-        struct vlan_skb_tx_cookie *cookie;
-
-        cookie = VLAN_TX_SKB_CB(skb);
-        if (cookie->magic == VLAN_TX_COOKIE_MAGIC) {
-                *vlan_tci = cookie->vlan_tag;
+        if (vlan_tx_tag_present(skb)) {
+                *vlan_tci = skb->vlan_tci;
                 return 0;
         } else {
                 *vlan_tci = 0;
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 8f10e3d08fd9..7ea44f6621f2 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -246,6 +246,7 @@ typedef unsigned char *sk_buff_data_t;
  *      @dma_cookie: a cookie to one of several possible DMA operations
  *              done by skb DMA functions
  *      @secmark: security marking
+ *      @vlan_tci: vlan tag control information
  */
 
 struct sk_buff {
@@ -326,6 +327,8 @@ struct sk_buff {
 
         __u32                   mark;
 
+        __u16                   vlan_tci;
+
         sk_buff_data_t          transport_header;
         sk_buff_data_t          network_header;
         sk_buff_data_t          mac_header;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 7c571560e9d2..50a853f7cd8e 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -459,6 +459,8 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
         new->tc_verd            = old->tc_verd;
 #endif
 #endif
+        new->vlan_tci           = old->vlan_tci;
+
         skb_copy_secmark(new, old);
 }
 
@@ -2286,6 +2288,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
                 skb_copy_queue_mapping(nskb, skb);
                 nskb->priority = skb->priority;
                 nskb->protocol = skb->protocol;
+                nskb->vlan_tci = skb->vlan_tci;
                 nskb->dst = dst_clone(skb->dst);
                 memcpy(nskb->cb, skb->cb, sizeof(skb->cb));
                 nskb->pkt_type = skb->pkt_type;