diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 273d738..a04da34 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -41,6 +41,13 @@
 	return name ? name : ".config";
 }
 
+const char *conf_get_autoconfig_name(void)
+{
+	char *name = getenv("KCONFIG_AUTOCONFIG");
+
+	return name ? name : "include/config/auto.conf";
+}
+
 static char *conf_expand_value(const char *in)
 {
 	struct symbol *sym;
@@ -555,15 +562,14 @@
 
 int conf_split_config(void)
 {
-	char *name, path[128];
+	const char *name;
+	char path[128];
 	char *s, *d, c;
 	struct symbol *sym;
 	struct stat sb;
 	int res, i, fd;
 
-	name = getenv("KCONFIG_AUTOCONFIG");
-	if (!name)
-		name = "include/config/auto.conf";
+	name = conf_get_autoconfig_name();
 	conf_read_simple(name, S_DEF_AUTO);
 
 	if (chdir("include/config"))
@@ -670,7 +676,7 @@
 {
 	struct symbol *sym;
 	const char *str;
-	char *name;
+	const char *name;
 	FILE *out, *out_h;
 	time_t now;
 	int i, l;
@@ -773,9 +779,7 @@
 		name = "include/linux/autoconf.h";
 	if (rename(".tmpconfig.h", name))
 		return 1;
-	name = getenv("KCONFIG_AUTOCONFIG");
-	if (!name)
-		name = "include/config/auto.conf";
+	name = conf_get_autoconfig_name();
 	/*
 	 * This must be the last step, kbuild has a dependency on auto.conf
 	 * and this marks the successful completion of the previous steps.