On Sat, Jan 9, 2021 at 12:58 AM Arnd Bergmann [off-list ref] wrote:

After v5.10 was officially declared an LTS kernel,

I have a question here. Maybe I have missed something, but how LTS
helps in this case? LTS AFAIR has a rule "upstream first". How can you
provide a patch to be backported if there is no upstream for it
anymore?

* 80486SX/DX: 80386 CPUs were dropped in 2012, and there are
  indications that 486 have no users either on recent kernels.
  There is still the Vortex86 family of SoCs, and the oldest of those were
  486SX-class, but all the modern ones are 586-class.
* Alpha 2106x: First generation that lacks some of the later features.
  Since all Alphas are ancient by now, it's hard to tell whether these have
  any fewer users.

We still have Intel Quark available. I run vanilla from time to time
on it due to the presence of peripherals I can't find elsewhere on x86
boards.

-- 
With Best Regards,
Andy Shevchenko

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