check[0].attr = git_attr("merge");
                check[1].attr = git_attr("conflict-marker-size");
        }
-       return git_checkattr(path, 2, check);
+       return git_check_attr(path, 2, check);
 }
 
 static void normalize_file(mmfile_t *mm, const char *path)
             const struct ll_merge_options *opts)
 {
        static struct git_attr_check check[2];
+       static const struct ll_merge_options default_opts;
        const char *ll_driver_name = NULL;
        int marker_size = DEFAULT_CONFLICT_MARKER_SIZE;
        const struct ll_merge_driver *driver;
 
-       if (!opts) {
-               struct ll_merge_options default_opts = {0};
-               return ll_merge(result_buf, path, ancestor, ancestor_label,
-                               ours, our_label, theirs, their_label,
-                               &default_opts);
-       }
+       if (!opts)
+               opts = &default_opts;
 
        if (opts->renormalize) {
                normalize_file(ancestor, path);
 
        if (!check.attr)
                check.attr = git_attr("conflict-marker-size");
-       if (!git_checkattr(path, 1, &check) && check.value) {
+       if (!git_check_attr(path, 1, &check) && check.value) {
                marker_size = atoi(check.value);
                if (marker_size <= 0)
                        marker_size = DEFAULT_CONFLICT_MARKER_SIZE;