linux-kernel - Re: [PATCH 1/4] iio/adc: ingenic: fix channel offsets in buffer

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Message-Id: <4GXUGR.SAF00K92YJMF@crapouillou.net>
Date:   Fri, 19 Aug 2022 12:07:16 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Artur Rojek <contact@...ur-rojek.eu>,
        Jonathan Cameron <jic23@...nel.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Chris Morgan <macromorgan@...mail.com>,
        BROADCOM NVRAM DRIVER <linux-mips@...r.kernel.org>,
        linux-iio <linux-iio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-input <linux-input@...r.kernel.org>
Subject: Re: [PATCH 1/4] iio/adc: ingenic: fix channel offsets in buffer

Hi Andy,

Le ven., août 19 2022 at 11:12:38 +0300, Andy Shevchenko 
<andy.shevchenko@...il.com> a écrit :
> On Wed, Aug 17, 2022 at 1:58 PM Artur Rojek <contact@...ur-rojek.eu> 
> wrote:
>> 
>>  Consumers expect the buffer to only contain enabled channels. While
>>  preparing the buffer, the driver also (incorrectly) inserts empty 
>> data
>>  for disabled channels, causing the enabled channels to appear at 
>> wrong
>>  offsets. Fix that.
> 
> What consumers? Have you tested on all of them? Please, elaborate. It
> might be that some of them have to be fixed. In such case you need to
> report the issue to their respective channels and put the
> corresponding links here.

There are no consumers to fix, only this driver. I believe it  wasn't 
noticed until now because all consumers were only using channels 0 and 
1.

Cheers,
-Paul

> P.S. It doesn't mean I'm against the patch.
> 
> --
> With Best Regards,
> Andy Shevchenko