--- zzzz-none-000/linux-4.1.52/include/linux/projid.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/linux/projid.h	2022-03-02 11:37:13.000000000 +0000
@@ -61,17 +61,17 @@
 
 #else
 
-static inline kprojid_t make_kprojid(struct user_namespace *from, projid_t projid)
+static inline kprojid_t make_kprojid(struct user_namespace *from __maybe_unused, projid_t projid __maybe_unused)
 {
 	return KPROJIDT_INIT(projid);
 }
 
-static inline projid_t from_kprojid(struct user_namespace *to, kprojid_t kprojid)
+static inline projid_t from_kprojid(struct user_namespace *to __maybe_unused, kprojid_t kprojid)
 {
 	return __kprojid_val(kprojid);
 }
 
-static inline projid_t from_kprojid_munged(struct user_namespace *to, kprojid_t kprojid)
+static inline projid_t from_kprojid_munged(struct user_namespace *to __maybe_unused, kprojid_t kprojid)
 {
 	projid_t projid = from_kprojid(to, kprojid);
 	if (projid == (projid_t)-1)
@@ -79,7 +79,7 @@
 	return projid;
 }
 
-static inline bool kprojid_has_mapping(struct user_namespace *ns, kprojid_t projid)
+static inline bool kprojid_has_mapping(struct user_namespace *ns __maybe_unused, kprojid_t projid __maybe_unused)
 {
 	return true;
 }