Re: [RFC PATCH v1 00/57] Boot-time page size selection for arm64

[Thomas Tai]

On 10/17/2024 8:32 AM, Ryan Roberts wrote:
> On 17/10/2024 13:27, Petr Tesarik wrote:
> > On Mon, 14 Oct 2024 11:55:11 +0100
> > Ryan Roberts <ryan.roberts@xxxxxxx> wrote:
> >
> > > [...]
> > > The series is arranged as follows:
> > >
> > >    - patch 1:	   Add macros required for converting non-arch code to support
> > >    		   boot-time page size selection
> > >    - patches 2-36:  Remove PAGE_SIZE compile-time constant assumption from all
> > >    		   non-arch code
> > I have just tried to recompile the openSUSE kernel with these patches
> > applied, and I'm running into this:
> >
> >    CC      arch/arm64/hyperv/hv_core.o
> > In file included from ../arch/arm64/hyperv/hv_core.c:14:0:
> > ../include/linux/hyperv.h:158:5: error: variably modified ‘reserved2’ at file scope
> >    u8 reserved2[PAGE_SIZE - 68];
> >       ^~~~~~~~~
> >
> > It looks like one more place which needs a patch, right?
> As mentioned in the cover letter, so far I've only converted enough to get the
> defconfig *image* building (i.e. no modules). If you are compiling a different
> config or compiling the modules for defconfig, you will likely run into these
> types of issues.

It would be nice if you could provide the defconfig you are using; I also ran
into build issues when using the arch/arm64/configs/defconfig.
 
Thank you,
Thomas

> That said, I do have some patches to fix Hyper-V, which Michael Kelley was kind
> enough to send me.
>
> I understand that Suse might be able to help with wider performance testing - if
> that's the reason you are trying to compile, you could send me your config and
> I'll start working on fixing up other drivers?
>
> Thanks,
> Ryan
>
> > Petr T