diff --git a/include/linux/if_packet.h b/include/linux/if_packet.h
index 18db066..5b2bade 100644
--- a/include/linux/if_packet.h
+++ b/include/linux/if_packet.h
@@ -46,6 +46,8 @@
 #define PACKET_VERSION			10
 #define PACKET_HDRLEN			11
 #define PACKET_RESERVE			12
+#define PACKET_TX_RING			13
+#define PACKET_LOSS			14
 
 struct tpacket_stats
 {
@@ -63,14 +65,22 @@
 	__u16		tp_vlan_tci;
 };
 
+/* Rx ring - header status */
+#define TP_STATUS_KERNEL	0x0
+#define TP_STATUS_USER		0x1
+#define TP_STATUS_COPY		0x2
+#define TP_STATUS_LOSING	0x4
+#define TP_STATUS_CSUMNOTREADY	0x8
+
+/* Tx ring - header status */
+#define TP_STATUS_AVAILABLE	0x0
+#define TP_STATUS_SEND_REQUEST	0x1
+#define TP_STATUS_SENDING	0x2
+#define TP_STATUS_WRONG_FORMAT	0x4
+
 struct tpacket_hdr
 {
 	unsigned long	tp_status;
-#define TP_STATUS_KERNEL	0
-#define TP_STATUS_USER		1
-#define TP_STATUS_COPY		2
-#define TP_STATUS_LOSING	4
-#define TP_STATUS_CSUMNOTREADY	8
 	unsigned int	tp_len;
 	unsigned int	tp_snaplen;
 	unsigned short	tp_mac;
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 1b5c3d2..aff494b 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -203,6 +203,9 @@
 #ifdef CONFIG_HAS_DMA
 	dma_addr_t	dma_maps[MAX_SKB_FRAGS + 1];
 #endif
+	/* Intermediate layers must ensure that destructor_arg
+	 * remains valid until skb destructor */
+	void *		destructor_arg;
 };
 
 /* We divide dataref into two halves.  The higher 16 bits hold references