{ buildPackages, fetchurl, perl, buildLinux, ... } @ args: buildLinux (args // rec { version = "4.4.254"; extraMeta.branch = "4.4"; src = fetchurl { url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz"; sha256 = "11wca1mprlcyk7r5h1c8rx3hr7l6mj4i85jaaf106s7wqcm8wamd"; }; } // (args.argsOverride or {}))