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

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Message-Id: <34C896A9-0FFE-4174-8E08-A07A12C4A7ED@holtmann.org>
Date:   Fri, 21 Jul 2017 18:52:56 +0200
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Quentin Schulz <quentin.schulz@...e-electrons.com>
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 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.

Regards

Marcel