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

From: Stephen Rothwell <[email-masked]>
Date: Tue, 13 Dec 2022 09:30:54 +1100

Hi all,

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

mm/ksm.c: In function 'ksm_might_need_to_copy':
mm/ksm.c:2605:21: error: implicit declaration of function 'copy_mc_user_highpage'; did you mean 'copy_user_highpage'? [-Werror=implicit-function-declaration]
 2605 |                 if (copy_mc_user_highpage(new_page, page, address, vma)) {
      |                     ^~~~~~~~~~~~~~~~~~~~~
      |                     copy_user_highpage

Caused by commit

  b7edf4b1cdb1 ("mm: hwpoison: support recovery from ksm_might_need_to_copy()")

I have reverted that commit for today.

-- 
Cheers,
Stephen Rothwell