linux-kernel - Re: [PATCH] mmc: atmel-mci: Reduce scope for the variable “slot” in atmci_request

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Message-ID: <20201210182150.GE1578121@piout.net>
Date:   Thu, 10 Dec 2020 19:21:50 +0100
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Markus Elfring <Markus.Elfring@....de>
Cc:     linux-mmc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Colin Ian King <colin.king@...onical.com>
Subject: Re: [PATCH] mmc: atmel-mci: Reduce scope for the variable “slot” in
 atmci_request_end()

On 10/12/2020 18:23:05+0100, Markus Elfring wrote:
> >> Can the extra null pointer initialisation trigger a source code analysis warning
> >> like “Addresses-Coverity: ("Unused value")” for this function implementation?
> >>
> >
> > Did you check, does it? It doesn't.
> >
> > Are you wasting maintainer and reviewer's time? Yes you are.
> 
> How do you think about a patch like “staging: speakup: remove redundant initialization
> of pointer p_key” for comparison?
> https://lore.kernel.org/patchwork/patch/1199128/
> https://lore.kernel.org/driverdev-devel/20200223153954.420731-1-colin.king@canonical.com/
> 
> Would you tolerate to omit the initialisation for the variable “slot”?
> 

If you were able to provide one good technical reason.

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com