{ stdenv, buildPackages, fetchurl, perl, buildLinux, ... } @ args: buildLinux (args // rec { version = "4.4.221"; extraMeta.branch = "4.4"; src = fetchurl { url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz"; sha256 = "06rpjnvrdp71flz948mfmx7jv8x2vmdg54zz1xpkb2458mwh5hbq"; }; } // (args.argsOverride or {}))