ethernet: rocker: use eth_hw_addr_set()

Commit 406f42fa ("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>

drivers/net/ethernet/rocker/rocker_main.c

@@ -2545,11 +2545,13 @@ static void rocker_port_dev_addr_init(struct rocker_port *rocker_port)
 {
 	const struct rocker *rocker = rocker_port->rocker;
 	const struct pci_dev *pdev = rocker->pdev;
+	u8 addr[ETH_ALEN];
 	int err;
 
-	err = rocker_cmd_get_port_settings_macaddr(rocker_port,
-						   rocker_port->dev->dev_addr);
-	if (err) {
+	err = rocker_cmd_get_port_settings_macaddr(rocker_port, addr);
+	if (!err) {
+		eth_hw_addr_set(rocker_port->dev, addr);
+	} else {
 		dev_warn(&pdev->dev, "failed to get mac address, using random\n");
 		eth_hw_addr_random(rocker_port->dev);
 	}