--- zzzz-none-000/linux-4.1.52/include/linux/of.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/linux/of.h	2022-03-02 11:37:13.000000000 +0000
@@ -110,7 +110,7 @@
 {
 	return node;
 }
-static inline void of_node_put(struct device_node *node) { }
+static inline void of_node_put(struct device_node *node __maybe_unused) { }
 #endif /* !CONFIG_OF_DYNAMIC */
 
 /* Pointer for first entry in chain of all nodes. */
@@ -673,7 +673,7 @@
 #if defined(CONFIG_OF) && defined(CONFIG_NUMA)
 extern int of_node_to_nid(struct device_node *np);
 #else
-static inline int of_node_to_nid(struct device_node *device)
+static inline int of_node_to_nid(struct device_node *device __maybe_unused)
 {
 	return NUMA_NO_NODE;
 }
@@ -1032,21 +1032,21 @@
 	return of_changeset_action(ocs, OF_RECONFIG_UPDATE_PROPERTY, np, prop);
 }
 #else /* CONFIG_OF_DYNAMIC */
-static inline int of_reconfig_notifier_register(struct notifier_block *nb)
+static inline int of_reconfig_notifier_register(struct notifier_block *nb __maybe_unused)
 {
 	return -EINVAL;
 }
-static inline int of_reconfig_notifier_unregister(struct notifier_block *nb)
+static inline int of_reconfig_notifier_unregister(struct notifier_block *nb __maybe_unused)
 {
 	return -EINVAL;
 }
-static inline int of_reconfig_notify(unsigned long action,
-				     struct of_reconfig_data *arg)
+static inline int of_reconfig_notify(unsigned long action __maybe_unused,
+				     struct of_reconfig_data *arg __maybe_unused)
 {
 	return -EINVAL;
 }
-static inline int of_reconfig_get_state_change(unsigned long action,
-						struct of_reconfig_data *arg)
+static inline int of_reconfig_get_state_change(unsigned long action __maybe_unused,
+						struct of_reconfig_data *arg __maybe_unused)
 {
 	return -EINVAL;
 }
@@ -1079,12 +1079,12 @@
 
 #else
 
-static inline int of_overlay_create(struct device_node *tree)
+static inline int of_overlay_create(struct device_node *tree __maybe_unused)
 {
 	return -ENOTSUPP;
 }
 
-static inline int of_overlay_destroy(int id)
+static inline int of_overlay_destroy(int id __maybe_unused)
 {
 	return -ENOTSUPP;
 }