linux-kernel - Re: [PATCH 10/10] [RFC] wifi: remove ipw2100/ipw2200 drivers

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Message-ID: <875y2wz7t6.fsf@kernel.org>
Date:   Tue, 24 Oct 2023 12:30:29 +0300
From:   Kalle Valo <kvalo@...nel.org>
To:     Stefan Lippers-Hollmann <s.l-h@....de>
Cc:     Arnd Bergmann <arnd@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        "David S . Miller" <davem@...emloft.net>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Beznea <claudiu.beznea@...on.dev>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Geoff Levand <geoff@...radead.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Jeff Johnson <quic_jjohnson@...cinc.com>,
        Johannes Berg <johannes@...solutions.net>,
        Larry Finger <Larry.Finger@...inger.net>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Pavel Machek <pavel@....cz>, Stanislaw Gruszka <stf_xl@...pl>,
        Gregory Greenman <gregory.greenman@...el.com>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-staging@...ts.linux.dev, linux-wireless@...r.kernel.org,
        Stanislav Yakovlev <stas.yakovlev@...il.com>,
        Linux Wireless <ilw@...ux.intel.com>
Subject: Re: [PATCH 10/10] [RFC] wifi: remove ipw2100/ipw2200 drivers

Stefan Lippers-Hollmann <s.l-h@....de> writes:

> On 2023-10-23, Arnd Bergmann wrote:
>> From: Arnd Bergmann <arnd@...db.de>
>>
>> These two drivers were used for the earliest "Centrino" branded Intel
>> laptops during the late 32-bit Pentium-M era, roughly 2003 to 2005, which
>> probably makes it the most modern platform that still uses the wireless
>> extension interface instead of cfg80211. Unlike the other drivers that
>> are suggested for removal, this one is still officially maintained.
>>
>> According to Johannes Berg, there was an effort to finish the move away
>> from wext in the past, but the last evidence of this that I could find
>> is from commit a3caa99e6c68f ("libipw: initiate cfg80211 API conversion
>> (v2)") in 2009.
>>
>> Link: https://lore.kernel.org/all/87fs2fgals.fsf@kernel.org/
>> Cc: Stanislav Yakovlev <stas.yakovlev@...il.com>
>> Cc: Linux Wireless <ilw@...ux.intel.com>
>> Signed-off-by: Arnd Bergmann <arnd@...db.de>
>> ---
>> I'm not convinced this should be in the same set of drivers as the
>> rest, since this is clearly less obsolete than the other hardware
>> that I would remove support for.
>
> These have indeed been very common back in the day, I'm still using
> a 2003-vintage 1.5 GHz Pentium-M 'Banias' Acer Travelmate 292LMi
> notebook using ipw2200 (and have two spare ipw2200 mini-PCI cards).
> Works still fine using v6.5.8-rc1 and WPA2PSK/ CCMP (sadly it does
> not do WPA3) and I do use it semi-regularly (running the latest
> stable- or stable-rc kernel of the day).
>
> While it would be nice to replace it with an ath5k based card (to
> get WPA3 support), the card isn't that easy to reach in the notebook,
> so it would be sad to see this go.

Wow, I'm very surprised that ipw2200 still works after 20 years. Thanks
for the report, I think it's best that we still keep the ipw2x00 driver
in the kernel.

-- 
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