linux-kernel - Re: [PATCH 1/2] staging: net: wireless: add ESP8089 WiFi driver

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Message-ID: <37e6e8f9-8f36-cb78-276d-01f4656c6e47@free-electrons.com>
Date:   Fri, 21 Jul 2017 19:05:26 +0200
From:   Quentin Schulz <quentin.schulz@...e-electrons.com>
To:     Marcel Holtmann <marcel@...tmann.org>
Cc:     Greg KH <gregkh@...uxfoundation.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        shawn.lin@...k-chips.com, adrian.hunter@...el.com,
        baolin.wang@...aro.org, Hans de Goede <hdegoede@...hat.com>,
        maxime.ripard@...e-electrons.com,
        thomas.petazzoni@...e-electrons.com,
        kernel list <linux-kernel@...r.kernel.org>,
        linux-mmc@...r.kernel.org, devel@...verdev.osuosl.org,
        icenowy@...c.xyz, wens@...e.org
Subject: Re: [PATCH 1/2] staging: net: wireless: add ESP8089 WiFi driver

Hi Marcel,

On 21/07/2017 18:52, Marcel Holtmann wrote:
> Hi Quentin,
> 
>>>> The Espressif ESP8089 WiFi chips can be often found in cheap tablets.
>>>> There is one in A23 Polaroid tablets for example.
>>>>
>>>> The chip is often embedded as an eMMC SDIO device.
>>>>
>>>> The code was taken from an out-of-tree repository and has seen a first
>>>> pass in the cleanup process.
>>>>
>>>> At the moment, there is no publicly available datasheet for this chip.
>>>>
>>>> Cc: Hans de Goede <hdegoede@...hat.com>
>>>> Cc: Icenowy Zheng <icenowy@...c.xyz>
>>>> Signed-off-by: Quentin Schulz <quentin.schulz@...e-electrons.com>
>>>
>>> Staging drivers need a TODO file that lists what has to be done to the
>>> code to get it out of staging.  Why not just take a day or so and fix up
>>> the remaining issues and get it into the "real" part of the kernel
>>> correctly?
>>>
>>
>> OK, I'll work on a TODO list. Is there anything else I should know about
>> staging drivers so I can address everything at the same time?
>>
>> From a driver that has already been cleaned up a bit by Icenowy and
>> Hans, it took me between 10 and 15 working days to this step, which I
>> estimate to be around 50% of total clean up (and we're only speaking
>> about coding style and dead code mainly, nothing about a bit of code
>> review, code robustness...). I find the code not really easy to follow
>> (might be because I'm a beginner in the subsystem as well).
>>
>> I might not be the most efficient person in cleaning up drivers but I'm
>> pretty sure this isn't a one day cleanup. (Would be happy to be proven
>> otherwise :) ), else I would have done it as you suggest.
> 
> even if it takes you 1 month to clean it up, get it reviewed on linux-wireless and target wireless-drivers instead of staging. When I had a brief a look at your patch, it didn't look like staging material to me.
> 

We don't have a client supporting this effort and I don't think the
company I work for would support this effort (maybe it would, but
definitely spread over a long long period), so we're talking about 10-15
working days spread over my free time/week-end, that isn't for in one
month :) I could use help for sure on this driver, that's why I posted
it in staging.

I've done the cleanup on a per-file basis so maybe you looked at one of
the cleaned up files?

Just to be sure, you're telling me that I should post it as is on
linux-wireless and then work with the reviews? Or are you telling me to
take "1 month to clean it up" and then post it on linux-wireless?

Thanks,
Quentin

> Regards
> 
> Marcel
> 

-- 
Quentin Schulz, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com