diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index a268051..a1b0066 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -34,12 +34,30 @@
 #define VLAN_ETH_DATA_LEN	1500	/* Max. octets in payload	 */
 #define VLAN_ETH_FRAME_LEN	1518	/* Max. octets in frame sans FCS */
 
+/*
+ * 	struct vlan_hdr - vlan header
+ * 	@h_vlan_TCI: priority and VLAN ID
+ *	@h_vlan_encapsulated_proto: packet type ID or len
+ */
+struct vlan_hdr {
+	__be16	h_vlan_TCI;
+	__be16	h_vlan_encapsulated_proto;
+};
+
+/**
+ *	struct vlan_ethhdr - vlan ethernet header (ethhdr + vlan_hdr)
+ *	@h_dest: destination ethernet address
+ *	@h_source: source ethernet address
+ *	@h_vlan_proto: ethernet protocol (always 0x8100)
+ *	@h_vlan_TCI: priority and VLAN ID
+ *	@h_vlan_encapsulated_proto: packet type ID or len
+ */
 struct vlan_ethhdr {
-   unsigned char	h_dest[ETH_ALEN];	   /* destination eth addr	*/
-   unsigned char	h_source[ETH_ALEN];	   /* source ether addr	*/
-   __be16               h_vlan_proto;              /* Should always be 0x8100 */
-   __be16               h_vlan_TCI;                /* Encapsulates priority and VLAN ID */
-   __be16		h_vlan_encapsulated_proto; /* packet type ID field (or len) */
+	unsigned char	h_dest[ETH_ALEN];
+	unsigned char	h_source[ETH_ALEN];
+	__be16		h_vlan_proto;
+	__be16		h_vlan_TCI;
+	__be16		h_vlan_encapsulated_proto;
 };
 
 #include <linux/skbuff.h>
@@ -49,11 +67,6 @@
 	return (struct vlan_ethhdr *)skb_mac_header(skb);
 }
 
-struct vlan_hdr {
-   __be16               h_vlan_TCI;                /* Encapsulates priority and VLAN ID */
-   __be16               h_vlan_encapsulated_proto; /* packet type ID field (or len) */
-};
-
 #define VLAN_VID_MASK	0xfff
 
 /* found in socket.c */