linux-kernel - Re: [PATCH v2 02/11] mm: introduce pgtable_has_pmd

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Message-ID: <202602101556.msl493OX-lkp@intel.com>
Date: Tue, 10 Feb 2026 15:45:02 +0800
From: kernel test robot <lkp@...el.com>
To: Luiz Capitulino <luizcap@...hat.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, david@...nel.org, baolin.wang@...ux.alibaba.com
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	ryan.roberts@....com, akpm@...ux-foundation.org,
	lorenzo.stoakes@...cle.com
Subject: Re: [PATCH v2 02/11] mm: introduce pgtable_has_pmd_leaves()

Hi Luiz,

kernel test robot noticed the following build errors:

[auto build test ERROR on powerpc/next]
[also build test ERROR on powerpc/fixes tip/x86/core linus/master v6.19 next-20260209]
[cannot apply to akpm-mm/mm-everything]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Luiz-Capitulino/docs-tmpfs-remove-implementation-detail-reference/20260210-061806
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
patch link:    https://lore.kernel.org/r/f55ca6204336f52f1651d02dc370bc3b771df3d0.1770675272.git.luizcap%40redhat.com
patch subject: [PATCH v2 02/11] mm: introduce pgtable_has_pmd_leaves()
config: arm-allnoconfig (https://download.01.org/0day-ci/archive/20260210/202602101556.msl493OX-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260210/202602101556.msl493OX-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602101556.msl493OX-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: init_arch_has_pmd_leaves
   >>> referenced by main.c
   >>>               init/main.o:(start_kernel) in archive vmlinux.a

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki