linux-kernel - Re: [PATCH] genpt: Make GENERIC

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Message-ID: <CAMuHMdU3rY8iyxJWdNFA0whOFv6WV-AgndnoA-QPjNLrLOjw2A@mail.gmail.com>
Date: Thu, 13 Nov 2025 09:56:48 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Jason Gunthorpe <jgg@...pe.ca>
Cc: Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>, 
	Robin Murphy <robin.murphy@....com>, iommu@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] genpt: Make GENERIC_PT invisible

Hi Jason,

On Wed, 12 Nov 2025 at 23:34, Jason Gunthorpe <jgg@...pe.ca> wrote:
> On Wed, Nov 12, 2025 at 03:08:05PM +0100, Geert Uytterhoeven wrote:
> > There is no point in asking the user about the Generic Radix Page
> > Table API:
> >   - All IOMMU drivers that use this API already select GENERIC_PT when
> >     needed,
> >   - Most users probably do not know what to answer anyway.
> >
> > Fixes: 7c5b184db7145fd4 ("genpt: Generic Page Table base API")
> > Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> > ---
> >  drivers/iommu/generic_pt/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
>
> I can't check this right now but I do recall trying to do this from
> the start and it was not working out, it ended up not being
> automatically turned on?
>
> Did you test something like menuconfig and the IOMMU drivers are still
> presented starting from an allnoconfig?

Yes, that still works.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds