From mboxrd@z Thu Jan 1 00:00:00 1970 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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT 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 731BCC169C4 for ; Fri, 8 Feb 2019 16:07:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 45FD520855 for ; Fri, 8 Feb 2019 16:07:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727084AbfBHQHa (ORCPT ); Fri, 8 Feb 2019 11:07:30 -0500 Received: from mga09.intel.com ([134.134.136.24]:45576 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727069AbfBHQHa (ORCPT ); Fri, 8 Feb 2019 11:07:30 -0500 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Feb 2019 08:07:29 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,348,1544515200"; d="scan'208";a="141804126" Received: from shivamur-mobl1.gar.corp.intel.com (HELO localhost) ([10.249.254.162]) by fmsmga002.fm.intel.com with ESMTP; 08 Feb 2019 08:07:25 -0800 Date: Fri, 8 Feb 2019 18:07:23 +0200 From: Jarkko Sakkinen To: Stefan Berger Cc: linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, Peter Huewe , Jason Gunthorpe , Stefan Berger , Nayna Jain , stable@vger.kernel.org Subject: Re: [PATCH 1/2] tpm: Unify the send callback behaviour Message-ID: <20190208160723.GA23755@linux.intel.com> References: <20190208140600.24996-1-jarkko.sakkinen@linux.intel.com> <20190208140600.24996-2-jarkko.sakkinen@linux.intel.com> <20190208154244.GA3963@linux.intel.com> <89f94ccb-d63e-271c-a91b-cfe63e40f776@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <89f94ccb-d63e-271c-a91b-cfe63e40f776@linux.ibm.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org On Fri, Feb 08, 2019 at 10:45:53AM -0500, Stefan Berger wrote: > On 2/8/19 10:42 AM, Jarkko Sakkinen wrote: > > On Fri, Feb 08, 2019 at 09:42:16AM -0500, Stefan Berger wrote: > On 2/8/19 9:05 AM, Jarkko Sakkinen wrote: > > > At least tpm_nsc_send (tpm_nsc.c) and tpm_inf_send (tpm_infineon.c) are also > > > returning the number of bytes sent. I would consider tpm_crb the outlier > > > that returns 0 and should return the length even though we don't need it... > > That would be absolutely wrong way the fix the *actual* issue i.e. > > callbacks returning garbage (sometimes just passing the length parameter > > back as a return value). > > Then I guess you have to fixes those other two files as well... That's still a better option. /Jarkko