From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.web.de ([212.227.15.14]:62252 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753081AbdJQQcx (ORCPT ); Tue, 17 Oct 2017 12:32:53 -0400 Subject: Re: [PATCH 0/4] char-TPM: Adjustments for ten function implementations To: James Bottomley , linux-integrity@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: Dan Carpenter , Jarkko Sakkinen , Andy Shevchenko , Benjamin Herrenschmidt , Corentin Labbe , Jason Gunthorpe , Jerry Snitselaar , Kenneth Goldman , Michael Ellerman , Nayna Jain , Paul Mackerras , =?UTF-8?Q?Peter_H=c3=bcwe?= , Stefan Berger , LKML , kernel-janitors@vger.kernel.org References: <1d3516a2-a8e6-9e95-d438-f115fac84c7f@users.sourceforge.net> <20171016183139.otyh3m5c5yurtmow@linux.intel.com> <20171016183512.3bz6x4b6lbhpbkje@linux.intel.com> <20171017085124.pkrjzghcf5wmcydc@mwanda> <1508255833.3129.33.camel@HansenPartnership.com> From: SF Markus Elfring Message-ID: <5cf54c5a-778f-3f00-8772-547785c22009@users.sourceforge.net> Date: Tue, 17 Oct 2017 18:32:16 +0200 MIME-Version: 1.0 In-Reply-To: <1508255833.3129.33.camel@HansenPartnership.com> Content-Type: text/plain; charset=utf-8 Sender: linux-integrity-owner@vger.kernel.org List-ID: >>> Fixes is only for bug fixes. These don't fix any bugs. >> >> How do you distinguish these in questionable source code >> from other error categories or software weaknesses? > > A style change is one that doesn't change the effect of the execution. This can occasionally be fine, can't it? > These don't actually even change the assembly, How did you check it? I would expect that there are useful run time effects to consider for three proposed update steps (in this patch series). > so there's programmatic proof they're not fixing anything. I find that the software refactoring "Improve a size determination in nine functions" should fit to this observation (while the source code can become a bit better). > Bug means potentially user visible fault. Thanks for your constructive feedback. Regards, Markus