list_for_each_entry_safe(dev, tmp, &acpi_wakeup_device_list,
                                 wakeup_list) {
                if (!dev->wakeup.flags.valid
-                   || sleep_state > (u32) dev->wakeup.sleep_state
+                   || sleep_state > dev->wakeup.sleep_state
                    || !(device_may_wakeup(&dev->dev)
                         || dev->wakeup.prepare_count))
                        continue;
        list_for_each_entry_safe(dev, tmp, &acpi_wakeup_device_list,
                                 wakeup_list) {
                if (!dev->wakeup.flags.valid
-                   || sleep_state > (u32) dev->wakeup.sleep_state
+                   || sleep_state > dev->wakeup.sleep_state
                    || !(device_may_wakeup(&dev->dev)
                         || dev->wakeup.prepare_count))
                        continue;