linux-kernel - Re: [PATCH] platform: x86: dell-smo8800: remove redundant assignments to byte

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Message-ID: <CAHp75VfAzk4n1HQETp+r5KGE5B_HmQ0JcsOwesvowuvt=wju5g@mail.gmail.com>
Date:   Tue, 31 Oct 2017 16:07:25 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Pali Rohár <pali.rohar@...il.com>
Cc:     Colin King <colin.king@...onical.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] platform: x86: dell-smo8800: remove redundant assignments
 to byte_data

On Tue, Oct 31, 2017 at 3:55 PM, Pali Rohár <pali.rohar@...il.com> wrote:
> On Tuesday 31 October 2017 15:47:58 Andy Shevchenko wrote:
>> On Tue, Oct 31, 2017 at 1:03 PM, Colin King <colin.king@...onical.com> wrote:
>> > From: Colin Ian King <colin.king@...onical.com>
>> >
>> > Variable byte_data is being initialized and re-assigned with values that
>> > are never read. Remove these as these redundant assignments. Cleans up
>> > clang warning:
>> >
>> > drivers/platform/x86/dell-smo8800.c:106:2: warning: Value stored to 'byte_data'
>> > is never read
>>
>> Thanks for the patch.
>>
>> As I read a code it was from the beginning like this. I dunno what was
>> a motivation of this pieces, thus I would like to hear Pali.
>
> IIRC this part of code comes from the lis3lv* driver which was used for
> HP EliteBook machines. As both drivers provides similar interface for
> userspace.

OK, though it doesn't clarify the intention of the byte_data
(useless?) assignments.

-- 
With Best Regards,
Andy Shevchenko