{ stdenv, buildPackages, fetchurl, perl, buildLinux, ... } @ args: buildLinux (args // rec { version = "4.4.156"; extraMeta.branch = "4.4"; src = fetchurl { url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz"; sha256 = "1aj87ncc8afx4dr42rf2kr5ai2k5w5arcp8z336i2wlnrbcdhhh4"; }; } // (args.argsOverride or {}))