Subject: linux-next: build failure in final buil

From: Mark Brown <[email-masked]>
Date: Mon, 18 May 2026 17:11:12 +0100

Hi all,

During the final builds today's linux-next build (powerpc
pseries_le_defconfig) failed like this:

/tmp/next/build/mm/hugetlb.c: In function 'hugetlb_unshare_pmds':
/tmp/next/build/mm/hugetlb.c:7282:17: error: implicit declaration of function '__huge_pmd_unshare'; did you mean 'huge_pmd_unshare'? [-Wimplicit-function-declaration]
 7282 |                 __huge_pmd_unshare(&tlb, vma, address, ptep, take_locks);
      |                 ^~~~~~~~~~~~~~~~~~
      |                 huge_pmd_unshare
make[4]: *** [/tmp/next/build/scripts/Makefile.build:289

Caused by commit

  2bb8fe16f7bf4 (mm/hugetlb: avoid false positive lockdep assertion)

I have reverted this commit for today.