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

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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