> +int page_keyid(const struct page *page)> +{> + if (mktme_status != MKTME_ENABLED)> + return 0;> +> + return lookup_page_ext(page)->keyid;> +}> +EXPORT_SYMBOL(page_keyid);Please start using a proper X86_FEATURE_* flag for this. It will giveyou all the fancy static patching that you are missing by doing it this way.