linux-kernel - Re: [PATCH v2] proc/fd: Remove unnecessary variable initialisations in seq

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Message-ID: <20200612170033.GF8681@bombadil.infradead.org>
Date:   Fri, 12 Jun 2020 10:00:33 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     Markus Elfring <Markus.Elfring@....de>
Cc:     Kaitao Cheng <pilgrimtao@...il.com>, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Alexey Dobriyan <adobriyan@...il.com>,
        Colin Ian King <colin.king@...onical.com>,
        Muchun Song <songmuchun@...edance.com>
Subject: Re: [PATCH v2] proc/fd: Remove unnecessary variable initialisations
 in seq_show()

On Fri, Jun 12, 2020 at 06:45:57PM +0200, Markus Elfring wrote:
> > 'files' will be immediately reassigned. 'f_flags' and 'file' will be
> > overwritten in the if{} or seq_show() directly exits with an error.
> > so we don't need to consume CPU resources to initialize them.
> 
> I suggest to improve also this change description.
> 
> * Should the mentioned identifiers refer to variables?
> 
> * Will another imperative wording be preferred?
>   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?id=b791d1bdf9212d944d749a5c7ff6febdba241771#n151
> 
> * I propose to extend the patch a bit more.
>   How do you think about to convert the initialisation for the variable “ret”
>   also into a later assignment?

Please stop commenting on people's changelogs.  You add no value.