From: Jakub Kicinski <kuba@kernel.org>
Date: Fri, 15 Oct 2021 22:16:43 +0000 (-0700)
Subject: ethernet: alteon: use eth_hw_addr_set()
X-Git-Tag: v6.6.17~8953^2~178^2~9
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ffaeca68fb5fd5cbf935bf297f78a523506246ab;p=platform%2Fkernel%2Flinux-rpi.git

ethernet: alteon: use eth_hw_addr_set()

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 apart 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>
---

diff --git a/drivers/net/ethernet/alteon/acenic.c b/drivers/net/ethernet/alteon/acenic.c
index eeb86bd..732da15 100644
--- a/drivers/net/ethernet/alteon/acenic.c
+++ b/drivers/net/ethernet/alteon/acenic.c
@@ -869,6 +869,7 @@ static int ace_init(struct net_device *dev)
 	int board_idx, ecode = 0;
 	short i;
 	unsigned char cache_size;
+	u8 addr[ETH_ALEN];
 
 	ap = netdev_priv(dev);
 	regs = ap->regs;
@@ -988,12 +989,13 @@ static int ace_init(struct net_device *dev)
 	writel(mac1, &regs->MacAddrHi);
 	writel(mac2, &regs->MacAddrLo);
 
-	dev->dev_addr[0] = (mac1 >> 8) & 0xff;
-	dev->dev_addr[1] = mac1 & 0xff;
-	dev->dev_addr[2] = (mac2 >> 24) & 0xff;
-	dev->dev_addr[3] = (mac2 >> 16) & 0xff;
-	dev->dev_addr[4] = (mac2 >> 8) & 0xff;
-	dev->dev_addr[5] = mac2 & 0xff;
+	addr[0] = (mac1 >> 8) & 0xff;
+	addr[1] = mac1 & 0xff;
+	addr[2] = (mac2 >> 24) & 0xff;
+	addr[3] = (mac2 >> 16) & 0xff;
+	addr[4] = (mac2 >> 8) & 0xff;
+	addr[5] = mac2 & 0xff;
+	eth_hw_addr_set(dev, addr);
 
 	printk("MAC: %pM\n", dev->dev_addr);