From: Jakub Kicinski <kuba@kernel.org>
Date: Tue, 19 Oct 2021 08:00:08 -0700
Subject: ethernet: tehuti: use eth_hw_addr_set()
Patch-mainline: v5.16-rc1
Git-commit: 3d9c64ca52d5a94a49df900e53ff1e60895720dd
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.

Break the address up 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/tehuti/tehuti.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/tehuti/tehuti.c
+++ b/drivers/net/ethernet/tehuti/tehuti.c
@@ -848,6 +848,7 @@ static int bdx_set_mac(struct net_device
 static int bdx_read_mac(struct bdx_priv *priv)
 {
 	u16 macAddress[3], i;
+	u8 addr[ETH_ALEN];
 	ENTER;
 
 	macAddress[2] = READ_REG(priv, regUNC_MAC0_A);
@@ -857,9 +858,10 @@ static int bdx_read_mac(struct bdx_priv
 	macAddress[0] = READ_REG(priv, regUNC_MAC2_A);
 	macAddress[0] = READ_REG(priv, regUNC_MAC2_A);
 	for (i = 0; i < 3; i++) {
-		priv->ndev->dev_addr[i * 2 + 1] = macAddress[i];
-		priv->ndev->dev_addr[i * 2] = macAddress[i] >> 8;
+		addr[i * 2 + 1] = macAddress[i];
+		addr[i * 2] = macAddress[i] >> 8;
 	}
+	eth_hw_addr_set(priv->ndev, addr);
 	RET(0);
 }