v4.19.13 snapshot.
diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h
new file mode 100644
index 0000000..548fd53
--- /dev/null
+++ b/include/linux/if_ether.h
@@ -0,0 +1,40 @@
+/*
+ * INET An implementation of the TCP/IP protocol suite for the LINUX
+ * operating system. INET is implemented using the BSD Socket
+ * interface as the means of communication with the user level.
+ *
+ * Global definitions for the Ethernet IEEE 802.3 interface.
+ *
+ * Version: @(#)if_ether.h 1.0.1a 02/08/94
+ *
+ * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ * Donald Becker, <becker@super.org>
+ * Alan Cox, <alan@lxorguk.ukuu.org.uk>
+ * Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef _LINUX_IF_ETHER_H
+#define _LINUX_IF_ETHER_H
+
+#include <linux/skbuff.h>
+#include <uapi/linux/if_ether.h>
+
+static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
+{
+ return (struct ethhdr *)skb_mac_header(skb);
+}
+
+static inline struct ethhdr *inner_eth_hdr(const struct sk_buff *skb)
+{
+ return (struct ethhdr *)skb_inner_mac_header(skb);
+}
+
+int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr);
+
+extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len);
+
+#endif /* _LINUX_IF_ETHER_H */