Re: [RFC V1 08/16] arm64/mm: Convert READ_ONCE() as pgdp_get() while accessing PGD

[kernel test robot <lkp@intel.com>]

Hi Anshuman,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:

[auto build test ERROR on v7.0-rc1]
[also build test ERROR on linus/master next-20260223]
[cannot apply to arm64/for-next/core akpm-mm/mm-everything arm/for-next arm/fixes kvmarm/next soc/for-next]
[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/Anshuman-Khandual/mm-Abstract-printing-of-pxd_val/20260224-131447
base:   v7.0-rc1
patch link:    https://lore.kernel.org/r/20260224051153.3150613-9-anshuman.khandual%40arm.com
patch subject: [RFC V1 08/16] arm64/mm: Convert READ_ONCE() as pgdp_get() while accessing PGD
config: arm64-allnoconfig (https://download.01.org/0day-ci/archive/20260224/202602241644.aoli8EeP-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260224/202602241644.aoli8EeP-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602241644.aoli8EeP-lkp@intel.com/

All errors (new ones prefixed by >>):

   aarch64-linux-ld: Unexpected GOT/PLT entries detected!
   aarch64-linux-ld: Unexpected run-time procedure linkages detected!
   aarch64-linux-ld: arch/arm64/mm/fault.o: in function `show_pte':
>> fault.c:(.text.unlikely+0x19c): undefined reference to `p4d_offset'
>> aarch64-linux-ld: fault.c:(.text.unlikely+0x1d0): undefined reference to `pud_offset'
   aarch64-linux-ld: arch/arm64/mm/mmu.o: in function `split_kernel_leaf_mapping_locked':
>> mmu.c:(.text+0xfa8): undefined reference to `p4d_offset'
>> aarch64-linux-ld: mmu.c:(.text+0xfc4): undefined reference to `pud_offset'
   aarch64-linux-ld: arch/arm64/mm/mmu.o: in function `alloc_init_pud':
   mmu.c:(.text+0x1bb8): undefined reference to `pud_offset_phys'
   aarch64-linux-ld: arch/arm64/mm/mmu.o: in function `alloc_init_p4d':
>> mmu.c:(.text+0x1eac): undefined reference to `p4d_offset_phys'
   aarch64-linux-ld: arch/arm64/mm/fixmap.o: in function `early_fixmap_init_pud.constprop.0':
   fixmap.c:(.init.text+0xa0): undefined reference to `pud_offset_phys'
   aarch64-linux-ld: arch/arm64/mm/fixmap.o: in function `early_fixmap_init':
>> fixmap.c:(.init.text+0x1a4): undefined reference to `p4d_offset_phys'
   aarch64-linux-ld: mm/memory.o: in function `follow_pfnmap_start':
>> memory.c:(.text+0xa28): undefined reference to `p4d_offset'
   aarch64-linux-ld: memory.c:(.text+0xa44): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/memory.o: in function `free_p4d_range':
   memory.c:(.text+0x27c4): undefined reference to `p4d_offset'
   aarch64-linux-ld: memory.c:(.text+0x283c): undefined reference to `pud_offset'
   aarch64-linux-ld: memory.c:(.text+0x2a74): undefined reference to `pud_offset'
>> aarch64-linux-ld: memory.c:(.text+0x2cac): undefined reference to `p4d_offset'
   aarch64-linux-ld: mm/memory.o: in function `unmap_page_range':
   memory.c:(.text+0x52d8): undefined reference to `p4d_offset'
   aarch64-linux-ld: memory.c:(.text+0x532c): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/memory.o: in function `__handle_mm_fault':
   memory.c:(.text+0x840c): undefined reference to `p4d_offset'
   aarch64-linux-ld: memory.c:(.text+0x8428): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/memory.o: in function `apply_to_pud_range':
   memory.c:(.text+0x8b1c): undefined reference to `pud_offset'
   aarch64-linux-ld: memory.c:(.text+0x8b40): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/memory.o: in function `__apply_to_page_range':
   memory.c:(.text+0x8d68): undefined reference to `p4d_offset'
   aarch64-linux-ld: memory.c:(.text+0x8ea8): undefined reference to `p4d_offset'
   aarch64-linux-ld: mm/memory.o: in function `remap_pfn_range_internal.isra.0':
   memory.c:(.text+0x9088): undefined reference to `p4d_offset'
   aarch64-linux-ld: memory.c:(.text+0x90d4): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/memory.o: in function `copy_p4d_range':
   memory.c:(.text+0x96f8): undefined reference to `p4d_offset'
   aarch64-linux-ld: memory.c:(.text+0x9718): undefined reference to `p4d_offset'
   aarch64-linux-ld: memory.c:(.text+0x9780): undefined reference to `pud_offset'
   aarch64-linux-ld: memory.c:(.text+0x979c): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/memory.o: in function `walk_to_pmd':
   memory.c:(.text+0x9c30): undefined reference to `p4d_offset'
   aarch64-linux-ld: memory.c:(.text+0x9c4c): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/memory.o: in function `__print_bad_page_map_pgtable':
>> memory.c:(.text.unlikely+0x50): undefined reference to `p4d_offset'
>> aarch64-linux-ld: memory.c:(.text.unlikely+0x78): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/vmalloc.o: in function `vmalloc_to_page':
>> vmalloc.c:(.text+0x6b8): undefined reference to `p4d_offset'
>> aarch64-linux-ld: vmalloc.c:(.text+0x6d4): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/vmalloc.o: in function `vmap_range_noflush':
   vmalloc.c:(.text+0x2084): undefined reference to `p4d_offset'
   aarch64-linux-ld: vmalloc.c:(.text+0x20dc): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/vmalloc.o: in function `vmap_small_pages_range_noflush':
   vmalloc.c:(.text+0x27d8): undefined reference to `p4d_offset'
   aarch64-linux-ld: vmalloc.c:(.text+0x2820): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/vmalloc.o: in function `__vunmap_range_noflush':
   vmalloc.c:(.text+0x674c): undefined reference to `p4d_offset'
   aarch64-linux-ld: vmalloc.c:(.text+0x67cc): undefined reference to `pud_offset'
   aarch64-linux-ld: arch/arm64/mm/pageattr.o: in function `kernel_page_present':
>> pageattr.c:(.text+0xc04): undefined reference to `p4d_offset'
>> aarch64-linux-ld: pageattr.c:(.text+0xc3c): undefined reference to `p4d_offset'
>> aarch64-linux-ld: pageattr.c:(.text+0xc4c): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/gup.o: in function `follow_page_mask':
>> gup.c:(.text+0x2210): undefined reference to `p4d_offset'
>> aarch64-linux-ld: gup.c:(.text+0x2288): undefined reference to `p4d_offset'
>> aarch64-linux-ld: gup.c:(.text+0x22a8): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/mprotect.o: in function `change_protection_range':
>> mprotect.c:(.text+0xe50): undefined reference to `p4d_offset'
>> aarch64-linux-ld: mprotect.c:(.text+0xeb8): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/mremap.o: in function `get_old_pud':
   mremap.c:(.text+0xb0): undefined reference to `p4d_offset'
   aarch64-linux-ld: mremap.c:(.text+0xcc): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/mremap.o: in function `alloc_new_pud':
   mremap.c:(.text+0x170): undefined reference to `p4d_offset'
   aarch64-linux-ld: mremap.c:(.text+0x18c): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/page_vma_mapped.o: in function `page_vma_mapped_walk':
   page_vma_mapped.c:(.text+0x140): undefined reference to `p4d_offset'
   aarch64-linux-ld: page_vma_mapped.c:(.text+0x1b8): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/pagewalk.o: in function `walk_pud_range':
   pagewalk.c:(.text+0x640): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/pagewalk.o: in function `walk_p4d_range':
   pagewalk.c:(.text+0x854): undefined reference to `p4d_offset'
   aarch64-linux-ld: mm/pagewalk.o: in function `folio_walk_start':
   pagewalk.c:(.text+0x1478): undefined reference to `p4d_offset'
   aarch64-linux-ld: pagewalk.c:(.text+0x1494): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/rmap.o: in function `mm_find_pmd':
   rmap.c:(.text+0x1524): undefined reference to `p4d_offset'
   aarch64-linux-ld: rmap.c:(.text+0x1534): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/sparse-vmemmap.o: in function `virt_to_kpte':
   sparse-vmemmap.c:(.text+0x64): undefined reference to `p4d_offset'
   aarch64-linux-ld: sparse-vmemmap.c:(.text+0x6c): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/sparse-vmemmap.o: in function `vmemmap_wrprotect_hvo':
   sparse-vmemmap.c:(.text+0x150): undefined reference to `p4d_offset'
   aarch64-linux-ld: sparse-vmemmap.c:(.text+0x158): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/sparse-vmemmap.o: in function `vmemmap_pud_populate':
   sparse-vmemmap.c:(.init.text+0x610): undefined reference to `pud_offset'
   aarch64-linux-ld: mm/sparse-vmemmap.o: in function `vmemmap_p4d_populate':
   sparse-vmemmap.c:(.init.text+0x750): undefined reference to `p4d_offset'

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