KF_IMPL_SUFFIX
len = snprintf(buf, sizeof(buf), "%s%s", func_name, KF_IMPL_SUFFIX);
func_name, KF_IMPL_SUFFIX);
len = snprintf(tmp_name, sizeof(tmp_name), "%s%s", kfunc->name, KF_IMPL_SUFFIX);
pr_err("ERROR: function name is too long: %s%s\n", kfunc->name, KF_IMPL_SUFFIX);