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Message-ID: <87wmtw2ze2.fsf@miraculix.mork.no>
Date: Sat, 02 Dec 2023 20:11:17 +0100
From: Bjørn Mork <bjorn@...k.no>
To: Douglas Anderson <dianders@...omium.org>
Cc: linux-usb@...r.kernel.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Grant Grundler <grundler@...omium.org>,
Hayes Wang <hayeswang@...ltek.com>,
Simon Horman <horms@...nel.org>, netdev@...r.kernel.org,
Brian Geffon <bgeffon@...gle.com>,
Alan Stern <stern@...land.harvard.edu>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] usb: core: Allow subclassed USB drivers to
override usb_choose_configuration()
Douglas Anderson <dianders@...omium.org> writes:
> The r8152 driver tried to make things work by implementing a USB
> generic_subclass driver and then overriding the normal config
> selection after it happened. This is less than ideal and also caused
> breakage if someone deauthorized and re-authorized the USB device
> because the USB core ended up going back to it's default logic for
> choosing the best config. I made an attempt to fix this [1] but it was
> a bit ugly.
>
> Let's do this better and allow USB generic_subclass drivers to
> override usb_choose_configuration().
>
> [1] https://lore.kernel.org/r/20231130154337.1.Ie00e07f07f87149c9ce0b27ae4e26991d307e14b@changeid
>
> Suggested-by: Alan Stern <stern@...land.harvard.edu>
> Signed-off-by: Douglas Anderson <dianders@...omium.org>
Brilliant! Thanks for doing this. It is obviously what I should have
done in the first place if I had been smart enough.
Bjørn
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