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

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Message-ID: <20241017142752.17f2c816@mordecai.tesarici.cz>
Date: Thu, 17 Oct 2024 14:27:52 +0200
From: Petr Tesarik <ptesarik@...e.com>
To: Ryan Roberts <ryan.roberts@....com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, Anshuman Khandual
 <anshuman.khandual@....com>, Ard Biesheuvel <ardb@...nel.org>, Catalin
 Marinas <catalin.marinas@....com>, David Hildenbrand <david@...hat.com>,
 Greg Marsden <greg.marsden@...cle.com>, Ivan Ivanov <ivan.ivanov@...e.com>,
 Kalesh Singh <kaleshsingh@...gle.com>, Marc Zyngier <maz@...nel.org>, Mark
 Rutland <mark.rutland@....com>, Matthias Brugger <mbrugger@...e.com>,
 Miroslav Benes <mbenes@...e.cz>, Will Deacon <will@...nel.org>,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux-mm@...ck.org
Subject: Re: [RFC PATCH v1 00/57] Boot-time page size selection for arm64

On Mon, 14 Oct 2024 11:55:11 +0100
Ryan Roberts <ryan.roberts@....com> 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?

Petr T