--- zzzz-none-000/linux-3.10.107/include/linux/projid.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/include/linux/projid.h	2021-11-10 11:53:56.000000000 +0000
@@ -76,12 +76,14 @@
 
 #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)
 {
 	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);
 }
@@ -94,7 +96,9 @@
 	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;
 }