+static efi_status_t efi_get_variable_common(u16 *variable_name,
+ const efi_guid_t *vendor,
+ u32 *attributes,
+ efi_uintn_t *data_size, void *data);
+
+static efi_status_t efi_set_variable_common(u16 *variable_name,
+ const efi_guid_t *vendor,
+ u32 attributes,
+ efi_uintn_t data_size,
+ const void *data,
+ bool ro_check);
+