linux-kernel - linux-next: build failure after merge of the mm-hotfixes tree

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Message-ID: <20250821160515.611d191e@canb.auug.org.au>
Date: Thu, 21 Aug 2025 16:05:15 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Harry Yoo <harry.yoo@...cle.com>, Linux Kernel Mailing List
 <linux-kernel@...r.kernel.org>, Linux Next Mailing List
 <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the mm-hotfixes tree

Hi all,

After merging the mm-hotfixes tree, today's linux-next build (powerpc
allyesconfig) failed like this:

ld: mm/kasan/init.o:(.toc+0x0): undefined reference to `kasan_early_shadow_p4d'

Caused by commit

  4b99d7a3e69a ("mm: introduce and use {pgd,p4d}_populate_kernel()")

I have reverted that commit (and the following 07cf1bc1f659) for today.

-- 
Cheers,
Stephen Rothwell

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