From: Jakub Kicinski <kuba@kernel.org>
Date: Fri, 15 Oct 2021 15:16:49 -0700
Subject: ethernet: ec_bhf: use eth_hw_addr_set()
Patch-mainline: v5.16-rc1
Git-commit: 10e6ded812357ad5ae754bd994521beca091c0b4
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.

Copy 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/ec_bhf.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/ec_bhf.c
+++ b/drivers/net/ethernet/ec_bhf.c
@@ -479,6 +479,7 @@ static int ec_bhf_probe(struct pci_dev *
 	struct net_device *net_dev;
 	struct ec_bhf_priv *priv;
 	void __iomem *dma_io;
+	u8 addr[ETH_ALEN];
 	void __iomem *io;
 	int err = 0;
 
@@ -547,7 +548,8 @@ static int ec_bhf_probe(struct pci_dev *
 	if (err < 0)
 		goto err_free_net_dev;
 
-	memcpy_fromio(net_dev->dev_addr, priv->mii_io + MII_MAC_ADDR, 6);
+	memcpy_fromio(addr, priv->mii_io + MII_MAC_ADDR, ETH_ALEN);
+	eth_hw_addr_set(net_dev, addr);
 
 	err = register_netdev(net_dev);
 	if (err < 0)