File-copy from v4.4.100

This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Please refer to that tree for all history prior to this point.

Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/include/net/x25device.h b/include/net/x25device.h
new file mode 100644
index 0000000..1fa08b4
--- /dev/null
+++ b/include/net/x25device.h
@@ -0,0 +1,17 @@
+#ifndef _X25DEVICE_H
+#define _X25DEVICE_H
+
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/if_x25.h>
+#include <linux/skbuff.h>
+
+static inline __be16 x25_type_trans(struct sk_buff *skb, struct net_device *dev)
+{
+	skb->dev = dev;
+	skb_reset_mac_header(skb);
+	skb->pkt_type = PACKET_HOST;
+	
+	return htons(ETH_P_X25);
+}
+#endif