Re: [PATCH 0/4] usb: typec: ucsi: revert broken buffer management

[Johan Hovold]

On Mon, Dec 22, 2025 at 02:15:10PM -0800, Katiyar, Pooja wrote:
> On Mon, Dec 22, 2025 at 07:22:00AM -0800, Johan Hovold wrote:
> > The new buffer management code has not been tested or reviewed properly
> > and breaks boot of machines like the Lenovo ThinkPad X13s.
> > 
> > Fixing this will require designing a proper interface for managing these
> > transactions, something which most likely involves reverting most of the
> > offending commit anyway.
> > 	    
> > Revert the broken code to fix the regression and let Intel come up with
> > a properly tested implementation for a later kernel.
> > 
> 
> Thanks! A fix patch addressing the race condition has been identified and
> is being tested right now. It will be submitted for review shortly.
> 
> Here’s the discussion on same - 
> https://lore.kernel.org/all/349e1f70-7e40-4e3e-b078-6e001bbb5f1a@xxxxxxxxxxxxxxxx/

Yes, I'm aware that discussion and I still think this needs to be
reverted. Then you can propose a redesigned and tested implementation
that we can help you review as that kind of work is not something that
should be done as part of rc stabilisation.

Johan