hostap: use eth_hw_addr_set()

Commit 406f42f ("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.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211018235021.1279697-11-kuba@kernel.org

drivers/net/wireless/intersil/hostap/hostap_hw.c

@@ -1403,14 +1403,17 @@ static int prism2_hw_init2(struct net_device *dev, int initial)
 	hfa384x_events_only_cmd(dev);
 
 	if (initial) {
+		u8 addr[ETH_ALEN] = {};
 		struct list_head *ptr;
+
 		prism2_check_sta_fw_version(local);
 
 		if (hfa384x_get_rid(dev, HFA384X_RID_CNFOWNMACADDR,
-				    dev->dev_addr, 6, 1) < 0) {
+				    addr, ETH_ALEN, 1) < 0) {
 			printk("%s: could not get own MAC address\n",
 			       dev->name);
 		}
+		eth_hw_addr_set(dev, addr);
 		list_for_each(ptr, &local->hostap_interfaces) {
 			iface = list_entry(ptr, struct hostap_interface, list);
 			eth_hw_addr_inherit(iface->dev, dev);