From: Jakub Kicinski <kuba@kernel.org>
Date: Mon, 18 Oct 2021 07:29:25 -0700
Subject: ethernet: r8169: use eth_hw_addr_set()
Patch-mainline: v5.16-rc1
Git-commit: 1c5d09d58748b74d8d03a9beadf691f8d9ec8622
References: jsc#PED-1565

Commit 406f42fa0d3c ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

Read the address into an array on the stack, then call
eth_hw_addr_set().

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/realtek/r8169_main.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -5234,7 +5234,7 @@ static int rtl_get_ether_clk(struct rtl8
 static void rtl_init_mac_address(struct rtl8169_private *tp)
 {
 	struct net_device *dev = tp->dev;
-	u8 *mac_addr = dev->dev_addr;
+	u8 mac_addr[ETH_ALEN];
 	int rc;
 
 	rc = eth_platform_get_mac_address(tp_to_dev(tp), mac_addr);
@@ -5252,6 +5252,7 @@ static void rtl_init_mac_address(struct
 	eth_hw_addr_random(dev);
 	dev_warn(tp_to_dev(tp), "can't read MAC address, setting random one\n");
 done:
+	eth_hw_addr_set(dev, mac_addr);
 	rtl_rar_set(tp, mac_addr);
 }