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From:   Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat, 18 Sep 2021 13:46:10 -0700
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Subject: Re: [PATCH v2 0/4] Introduce and use absolute_pointer macro
To:     Ulrich Teichert <krypton@ulrich-teichert.org>
Cc:     Michael Cree <mcree@orcon.net.nz>,
        Guenter Roeck <linux@roeck-us.net>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        "James E . J . Bottomley" <James.Bottomley@hansenpartnership.com>,
        Helge Deller <deller@gmx.de>,
        "David S . Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        alpha <linux-alpha@vger.kernel.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-parisc@vger.kernel.org, Netdev <netdev@vger.kernel.org>,
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On Sat, Sep 18, 2021 at 1:26 PM Ulrich Teichert
<krypton@ulrich-teichert.org> wrote:
>
> >
> > (I forget which alpha I had. For some reason I want to think I had an
> > EISA machine and probably Jensen. Maybe upgraded to a 164 later?)
>
> Well, as this was way back in 1995, it was perhaps a Multia? Also
> named UDB, a small "booksize" model.

No, that came later. I had one of the very original ones.

I'm pretty sure it was that Jensen platform, but I'm too lazy to go
back and look.

> > Can you send me your Jensen config?
>
> Sure, attached here. I don't know if it helps - I can't tell you why I
> used 4.18-rc5 for it, that was in 2018... Oh man, I am spending too much
> time at work...

I ended up hacking something up which was enough to show the build
problems, and then some.

But your config shows _other_ errors with the IO functions, so I guess
I'll need to look at that one too.

There's clearly a reason that Jensen was marked BROKEN in the Kconfig,
the whole situation with the IO accessor functions on that platform is
a disaster.

              Linus