From 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?=
 <emulatorman@parabola.nu>
Date: Fri, 25 Mar 2016 03:53:42 -0300
Subject: Linux-libre 4.5-gnu

---
 net/ethernet/eth.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'net/ethernet/eth.c')

diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index 9e63f252a..103871784 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -52,6 +52,8 @@
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/if_ether.h>
+#include <linux/of_net.h>
+#include <linux/pci.h>
 #include <net/dst.h>
 #include <net/arp.h>
 #include <net/sock.h>
@@ -485,3 +487,32 @@ static int __init eth_offload_init(void)
 }
 
 fs_initcall(eth_offload_init);
+
+unsigned char * __weak arch_get_platform_mac_address(void)
+{
+	return NULL;
+}
+
+int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr)
+{
+	const unsigned char *addr;
+	struct device_node *dp;
+
+	if (dev_is_pci(dev))
+		dp = pci_device_to_OF_node(to_pci_dev(dev));
+	else
+		dp = dev->of_node;
+
+	addr = NULL;
+	if (dp)
+		addr = of_get_mac_address(dp);
+	if (!addr)
+		addr = arch_get_platform_mac_address();
+
+	if (!addr)
+		return -ENODEV;
+
+	ether_addr_copy(mac_addr, addr);
+	return 0;
+}
+EXPORT_SYMBOL(eth_platform_get_mac_address);
-- 
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