[davidhildenbrand:folded_pgtable 12/13] fault.c:undefined reference to `set_pgd'

[davidhildenbrand:folded_pgtable 12/13] fault.c:undefined reference to `set_pgd'

[kernel test robot]

tree:   https://github.com/davidhildenbrand/linux folded_pgtable
head:   898b37f4865d94ff198bb62dfe2517a6d1b7d44e
commit: 262ccde2d8b41adf4ccff70b6fb199f3a3b67882 [12/13] mm/pgtable: stop allowing to call folded set_pgd/set_p4d/set_pud
config: nios2-allnoconfig (https://download.01.org/0day-ci/archive/20260704/202607041124.mWJgU4Ws-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 11.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260704/202607041124.mWJgU4Ws-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/202607041124.mWJgU4Ws-lkp@intel.com/

All errors (new ones prefixed by >>):

   nios2-linux-ld: arch/nios2/mm/fault.o: in function `do_page_fault':
>> fault.c:(.text+0x2f4): undefined reference to `set_pgd'
>> fault.c:(.text+0x2f4): relocation truncated to fit: R_NIOS2_CALL26 against `set_pgd'

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