@@ -325,7 +325,7 @@ static void head_atom_parser(const struct ref_format *format, struct used_atom *
 	atom->u.head = resolve_refdup("HEAD", RESOLVE_REF_READING, NULL, NULL);
 }
 
-static struct {
+static struct valid_atom {
 	const char *name;
 	cmp_type cmp_type;
 	void (*parser)(const struct ref_format *format, struct used_atom *atom, const char *arg);

@@ -396,6 +396,7 @@ struct atom_value {
  * Used to parse format string and sort specifiers
  */
 static int parse_ref_filter_atom(const struct ref_format *format,
+				 const struct valid_atom *valid_atom, int n_atoms,
 				 const char *atom, const char *ep)
 {
 	const char *sp;

@@ -425,13 +426,13 @@ static int parse_ref_filter_atom(const struct ref_format *format,
 	atom_len = (arg ? arg : ep) - sp;
 
 	/* Is the atom a valid one? */
-	for (i = 0; i < ARRAY_SIZE(valid_atom); i++) {
+	for (i = 0; i < n_atoms; i++) {
 		int len = strlen(valid_atom[i].name);
 		if (len == atom_len && !memcmp(valid_atom[i].name, sp, len))
 			break;
 	}
 
-	if (ARRAY_SIZE(valid_atom) <= i)
+	if (n_atoms <= i)
 		die(_("unknown field name: %.*s"), (int)(ep-atom), atom);
 
 	/* Add it in, including the deref prefix */

@@ -708,7 +709,8 @@ int verify_ref_format(struct ref_format *format)
 		if (!ep)
 			return error(_("malformed format string %s"), sp);
 		/* sp points at "%(" and ep points at the closing ")" */
-		at = parse_ref_filter_atom(format, sp + 2, ep);
+		at = parse_ref_filter_atom(format, valid_atom,
+					   ARRAY_SIZE(valid_atom), sp + 2, ep);
 		cp = ep + 1;
 
 		if (skip_prefix(used_atom[at].name, "color:", &color))

@@ -2145,7 +2147,9 @@ int format_ref_array_item(struct ref_array_item *info,
 		if (cp < sp)
 			append_literal(cp, sp, &state);
 		if (get_ref_atom_value(info,
-				       parse_ref_filter_atom(format, sp + 2, ep),
+				       parse_ref_filter_atom(format, valid_atom,
+							     ARRAY_SIZE(valid_atom),
+							     sp + 2, ep),
 				       &atomv))
 			return -1;
 		atomv->handler(atomv, &state);

@@ -2198,7 +2202,8 @@ static int parse_sorting_atom(const char *atom)
 	 */
 	struct ref_format dummy = REF_FORMAT_INIT;
 	const char *end = atom + strlen(atom);
-	return parse_ref_filter_atom(&dummy, atom, end);
+	return parse_ref_filter_atom(&dummy, valid_atom,
+				     ARRAY_SIZE(valid_atom), atom, end);
 }
 
 /*  If no sorting option is given, use refname to sort as default */

--