{ stdenv, buildPackages, fetchurl, perl, buildLinux, ... } @ args: buildLinux (args // rec { version = "4.4.225"; extraMeta.branch = "4.4"; src = fetchurl { url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz"; sha256 = "0pn66hf9yrjg15skq1inscr5m0slvgsd2qm8rg5id70llrb4jis9"; }; } // (args.argsOverride or {}))