{ stdenv, buildPackages, fetchurl, perl, buildLinux, ... } @ args: buildLinux (args // rec { version = "4.9.226"; extraMeta.branch = "4.9"; src = fetchurl { url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz"; sha256 = "1jj5ydz5cy87z7hrv54bkyl9739lpzja8580ngjhrip5iwb8q2j6"; }; } // (args.argsOverride or {}))