ieee802154: Use struct sockaddr_storage with dev_set_mac_address()

Switch to struct sockaddr_storage for calling dev_set_mac_address(). Add
a temporary cast to struct sockaddr, which will be removed in a
subsequent patch.

Acked-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kees Cook <kees@kernel.org>
Link: https://patch.msgid.link/20250521204619.2301870-4-kees@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Author: kees

net/ieee802154/nl-phy.c

@@ -224,17 +224,17 @@ int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info)
 	dev_hold(dev);
 
 	if (info->attrs[IEEE802154_ATTR_HW_ADDR]) {
-		struct sockaddr addr;
+		struct sockaddr_storage addr;
 
-		addr.sa_family = ARPHRD_IEEE802154;
-		nla_memcpy(&addr.sa_data, info->attrs[IEEE802154_ATTR_HW_ADDR],
+		addr.ss_family = ARPHRD_IEEE802154;
+		nla_memcpy(&addr.__data, info->attrs[IEEE802154_ATTR_HW_ADDR],
 			   IEEE802154_ADDR_LEN);
 
 		/* strangely enough, some callbacks (inetdev_event) from
 		 * dev_set_mac_address require RTNL_LOCK
 		 */
 		rtnl_lock();
-		rc = dev_set_mac_address(dev, &addr, NULL);
+		rc = dev_set_mac_address(dev, (struct sockaddr *)&addr, NULL);
 		rtnl_unlock();
 		if (rc)
 			goto dev_unregister;