Re: [PATCH v4 05/13] mm/arch: Provide pud_pfn() fallback

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On Wed, Apr 03, 2024 at 02:25:20PM -0400, Peter Xu wrote:

> > I'd say the BUILD_BUG has done it's job and found an issue, fix it by
> > not defining pud_leaf? I don't see any calls to pud_leaf in loongarch
> > at least
> 
> Yes, that sounds better too to me, however it means we may also risk other
> archs that can fail another defconfig build.. and I worry I bring trouble
> to multiple such cases.  Fundamentally it's indeed my patch that broke
> those builds, so I still sent the change and leave that for arch developers
> to decide the best for the archs.

But your change causes silent data corruption if the code path is
run.. I think we are overall better to wade through the compile time
bugs from linux-next. Honestly if there were alot then I'd think there
would be more complaints already.

Maybe it should just be a seperate step from this series.

Jason




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