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

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: <7fdada40-370d-37b3-3aab-bfbedaa1804f@web.de>
Date:   Fri, 12 Jun 2020 18:45:57 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Kaitao Cheng <pilgrimtao@...il.com>, linux-fsdevel@...r.kernel.org
Cc:     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()

> '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?

Regards,
Markus