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

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Date:   Thu, 3 Nov 2022 16:02:31 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     wuqiang <wuqiang.matt@...edance.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 tree

Hi all,

After merging the mm tree, today's linux-next build (sparc defconfig)
failed like this:

lib/objpool.c: In function '__objpool_try_get_slot':
lib/objpool.c:378:17: error: implicit declaration of function 'prefetch' [-Werror=implicit-function-declaration]
  378 |                 prefetch(&ents[id]);
      |                 ^~~~~~~~
cc1: some warnings being treated as errors

Caused by commit

  080ae5bb93cd ("kprobes,lib: kretprobe scalability improvement")

I have reverted that commit for today (and its followup fix patch).

-- 
Cheers,
Stephen Rothwell

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