diff -rupN cryptsetup-2.3.3.old/lib/luks2/luks2_internal.h cryptsetup-2.3.3/lib/luks2/luks2_internal.h
--- cryptsetup-2.3.3.old/lib/luks2/luks2_internal.h	2022-01-17 16:10:00.756271915 +0100
+++ cryptsetup-2.3.3/lib/luks2/luks2_internal.h	2022-01-17 16:11:59.845689051 +0100
@@ -206,4 +206,6 @@ static inline const char *crypt_reencryp
 	return "<unknown>";
 }
 
+bool json_segment_contains_flag(json_object *jobj_segment, const char *flag_str, size_t len);
+
 #endif
diff -rupN cryptsetup-2.3.3.old/lib/luks2/luks2_segment.c cryptsetup-2.3.3/lib/luks2/luks2_segment.c
--- cryptsetup-2.3.3.old/lib/luks2/luks2_segment.c	2022-01-17 16:10:00.756271915 +0100
+++ cryptsetup-2.3.3/lib/luks2/luks2_segment.c	2022-01-17 16:10:34.422389838 +0100
@@ -123,7 +123,7 @@ static json_object *json_segment_get_fla
 	return jobj;
 }
 
-static bool json_segment_contains_flag(json_object *jobj_segment, const char *flag_str, size_t len)
+bool json_segment_contains_flag(json_object *jobj_segment, const char *flag_str, size_t len)
 {
 	int r, i;
 	json_object *jobj, *jobj_flags = json_segment_get_flags(jobj_segment);