--- zzzz-none-000/linux-4.4.60/drivers/base/core.c	2017-04-08 07:53:53.000000000 +0000
+++ hawkeye-5590-729/linux-4.4.60/drivers/base/core.c	2022-03-30 14:21:52.000000000 +0000
@@ -871,12 +871,14 @@
 	struct device_node *of_node = dev_of_node(dev);
 	int error;
 
+#if !IS_ENABLED(CONFIG_AVM_THIN_SYSFS)
 	if (of_node) {
 		error = sysfs_create_link(&dev->kobj, &of_node->kobj,"of_node");
 		if (error)
 			dev_warn(dev, "Error %d creating of_node link\n",error);
 		/* An error here doesn't warrant bringing down the device */
 	}
+#endif
 
 	if (!dev->class)
 		return 0;
@@ -920,8 +922,10 @@
 
 static void device_remove_class_symlinks(struct device *dev)
 {
+#if !IS_ENABLED(AVM_THIN_SYSFS)
 	if (dev_of_node(dev))
 		sysfs_remove_link(&dev->kobj, "of_node");
+#endif
 
 	if (!dev->class)
 		return;
@@ -2308,3 +2312,9 @@
 	else
 		dev->fwnode = fwnode;
 }
+
+int device_match_of_node(struct device *dev, const void *np)
+{
+	return dev->of_node == np;
+}
+EXPORT_SYMBOL_GPL(device_match_of_node);