linux-kernel - linux-next: build failure after merge of the akpm-current tree

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Date:   Tue, 1 Mar 2022 01:33:08 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Matthew Wilcox <willy@...radead.org>
Cc:     Anshuman Khandual <anshuman.khandual@....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 akpm-current tree

Hi all,

After merging the akpm-current tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

mm/rmap.c: In function 'try_to_migrate_one':
mm/rmap.c:1870:64: error: 'page' undeclared (first use in this function)
 1870 |                                                 compound_order(page));
      |                                                                ^~~~
mm/rmap.c:1870:64: note: each undeclared identifier is reported only once for each function it appears in

Caused by commit

  e05239e90b65 ("mm/migration: add trace events for base page and HugeTLB migrations")

inertacting with commit

  efe8a99f35f6 ("mm/rmap: Convert rmap_walk() to take a folio")

from the folio tree.

I have reverted commit e05239e90b65 for today.

-- 
Cheers,
Stephen Rothwell

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