Re: [PATCH] arm64: Define only {pud/pmd}_{set/clear}_huge when usefull

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To: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Subject: Re: [PATCH] arm64: Define only {pud/pmd}_{set/clear}_huge when usefull
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Date: Fri, 14 May 2021 14:42:00 -0700
Cc: Nicholas Piggin <npiggin@xxxxxxxxx>, Mike Kravetz <mike.kravetz@xxxxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxx>, naresh.kamboju@xxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx
In-reply-to: <73ec95f40cafbbb69bdfb43a7f53876fd845b0ce.1620990479.git.christophe.leroy@csgroup.eu>
References: <73ec95f40cafbbb69bdfb43a7f53876fd845b0ce.1620990479.git.christophe.leroy@csgroup.eu>

On Fri, 14 May 2021 11:08:53 +0000 (UTC) Christophe Leroy <christophe.leroy@xxxxxxxxxx> wrote:

> When PUD and/or PMD are folded, those functions are useless
> and we now have a stub in linux/pgtable.h

OK, help me out here please.  What patch does this fix?

Follow-Ups:
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  - From: Christophe Leroy
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  - From: Nathan Chancellor

References:
- [PATCH] arm64: Define only {pud/pmd}_{set/clear}_huge when usefull
  - From: Christophe Leroy

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