{ stdenv, buildPackages, fetchurl, perl, buildLinux, ... } @ args: buildLinux (args // rec { version = "4.4.171"; extraMeta.branch = "4.4"; src = fetchurl { url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz"; sha256 = "187g9x2zd738s1ric8zl205b7xipvr0l5i045clnhqwl5bd78h7x"; }; } // (args.argsOverride or {}))