linux-kernel - Re: [PATCH 00/17] Add export symbol namespace PL

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Message-ID: <CAE_wzQ_DTnrU9QbADZuNyt4fszAiTwa04D9muC-xE_S3MM9eGQ@mail.gmail.com>
Date:   Wed, 5 Jan 2022 14:50:19 -0800
From:   Dmitry Torokhov <dtor@...omium.org>
To:     Gwendal Grignou <gwendal@...omium.org>
Cc:     bleung@...omium.org, groeck@...omium.org, myungjoo.ham@...sung.com,
        cw00.choi@...sung.com, benjamin.tissoires@...hat.com,
        jic23@...nel.org, hverkuil-cisco@...all.nl, mchehab@...nel.org,
        lee.jones@...aro.org, pmalani@...omium.org, sre@...nel.org,
        thierry.reding@...il.com, u.kleine-koenig@...gutronix.de,
        lgirdwood@...il.com, a.zummo@...ertech.it, cychiang@...omium.org,
        perex@...ex.cz, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/17] Add export symbol namespace PL_CHROMEOS

Hi Gwendal,

On Wed, Jan 5, 2022 at 2:07 PM Gwendal Grignou <gwendal@...omium.org> wrote:
>
> Add a symbol namespace for functions exported by the plaform chromeos
> subsystem.

It would be great to explain why this is needed/desirable. What are
the benefits of introducing this namespace? What problem are you
trying to solve?

> Add depenencies for all drivers using these function.
>
> 'make nsdeps' is used to fix the dependencies.
>
> Signed-off-by: Gwendal Grignou <gwendal@...omium.org>
>
> Gwendal Grignou (17):
>   plaform: chrome: Add PL_CHROMEOS export symbol namespace
>   iio:cros_ec_sensors: Add PL_CHROMEOS dependency

I wonder if ordering patches this way breaks compilation (patches
should be structured in such a way that one need not apply entire
series to get to buildable kernel). Isn't putting symbols into new
namespace makes them unavailable to modules unless they explicitly
import it?

Thanks.

-- 
Dmitry