netdev - [PATCH net-next 07/12] ethernet: bcmgenet: use eth_hw_addr

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Date:   Fri, 15 Oct 2021 15:16:47 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
        opendmb@...il.com, f.fainelli@...il.com,
        bcm-kernel-feedback-list@...adcom.com
Subject: [PATCH net-next 07/12] ethernet: bcmgenet: 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.

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

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
CC: opendmb@...il.com
CC: f.fainelli@...il.com
CC: bcm-kernel-feedback-list@...adcom.com
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index ed53859b6f7d..5da9c00b43b1 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -4085,8 +4085,12 @@ static int bcmgenet_probe(struct platform_device *pdev)
 		eth_hw_addr_set(dev, pd->mac_address);
 	else
 		if (device_get_ethdev_address(&pdev->dev, dev))
-			if (has_acpi_companion(&pdev->dev))
-				bcmgenet_get_hw_addr(priv, dev->dev_addr);
+			if (has_acpi_companion(&pdev->dev)) {
+				u8 addr[ETH_ALEN];
+
+				bcmgenet_get_hw_addr(priv, addr);
+				eth_hw_addr_set(dev, addr);
+			}
 
 	if (!is_valid_ether_addr(dev->dev_addr)) {
 		dev_warn(&pdev->dev, "using random Ethernet MAC\n");
-- 
2.31.1