linux-kernel - Re: [PATCH 09/24] selftests/resctrl: Remove unnecessary _

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <f0252e2b-e3c3-4ad0-b622-53e38f5ea3ae@intel.com>
Date:   Thu, 2 Nov 2023 10:48:57 -0700
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        <linux-kselftest@...r.kernel.org>, Shuah Khan <shuah@...nel.org>,
        "Shaopeng Tan" <tan.shaopeng@...fujitsu.com>,
        Maciej Wieczór-Retman 
        <maciej.wieczor-retman@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>
CC:     <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 09/24] selftests/resctrl: Remove unnecessary __u64 ->
 unsigned long conversion

Hi Ilpo,

On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
> Perf counters are __u64 but the code converts them to unsigned long
> before printing them out.
> 
> Remove unnecessary type conversion and the potential loss of meaningful
> bits due to different sizes of types.

This motivation is not clear to me. Is this work done in
preparation for 32 bit testing? This raises a lot more topics if
this is the case.

Reinette