From patchwork Thu Mar 4 12:31:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Westerberg X-Patchwork-Id: 393306 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36000C43381 for ; Thu, 4 Mar 2021 12:34:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0FF5264F1E for ; Thu, 4 Mar 2021 12:34:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240815AbhCDMdX (ORCPT ); Thu, 4 Mar 2021 07:33:23 -0500 Received: from mga05.intel.com ([192.55.52.43]:28648 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240793AbhCDMdR (ORCPT ); Thu, 4 Mar 2021 07:33:17 -0500 IronPort-SDR: DY77keBVuFDQh+P3ooo494ZblgDX50DgcMAYm6GMlKuBixXPEX01E16vwszCc/jz2ZnKTgcdEQ jXJnxi+uWjYw== X-IronPort-AV: E=McAfee;i="6000,8403,9912"; a="272407035" X-IronPort-AV: E=Sophos;i="5.81,222,1610438400"; d="scan'208";a="272407035" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Mar 2021 04:31:32 -0800 IronPort-SDR: ZMBkdcqeVaa10YyY/yZr1AIrzgTmoQQZDwHiDWdtyD+Gtlr8bxfEDcq5PHfQr4g/nh/b7cNXCh gzEIwyEztrZQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,222,1610438400"; d="scan'208";a="600508099" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga005.fm.intel.com with ESMTP; 04 Mar 2021 04:31:29 -0800 Received: by black.fi.intel.com (Postfix, from userid 1001) id 729C83EA; Thu, 4 Mar 2021 14:31:26 +0200 (EET) From: Mika Westerberg To: linux-usb@vger.kernel.org Cc: Michael Jamet , Yehezkel Bernat , Andreas Noever , Isaac Hazan , Mika Westerberg , Lukas Wunner , "David S . Miller" , Jakub Kicinski , netdev@vger.kernel.org Subject: [PATCH 07/18] thunderbolt: Use pseudo-random number as initial property block generation Date: Thu, 4 Mar 2021 15:31:14 +0300 Message-Id: <20210304123125.43630-8-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210304123125.43630-1-mika.westerberg@linux.intel.com> References: <20210304123125.43630-1-mika.westerberg@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org As recommended by USB4 inter-domain service spec use pseudo-random value instead of zero as initial XDomain property block generation value. Signed-off-by: Mika Westerberg --- drivers/thunderbolt/xdomain.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c index a1657663a95e..cfe6fa7e84f4 100644 --- a/drivers/thunderbolt/xdomain.c +++ b/drivers/thunderbolt/xdomain.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -1880,6 +1881,7 @@ int tb_xdomain_init(void) tb_property_add_immediate(xdomain_property_dir, "deviceid", 0x1); tb_property_add_immediate(xdomain_property_dir, "devicerv", 0x80000100); + xdomain_property_block_gen = prandom_u32(); return 0; }