[akpm-mm:mm-unstable 169/175] huge_memory.c:undefined reference to `shmem_uncharge'

[akpm-mm:mm-unstable 169/175] huge_memory.c:undefined reference to `shmem_uncharge'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
head:   5a6a999252f63accde14d4851310f10ba962d3bd
commit: 9a655bd0773b41af6d8515502de102544f3ec4c1 [169/175] mm-huge_memoryc-introduce-folio_split_unmapped-v2
config: i386-buildonly-randconfig-005-20251119 (https://download.01.org/0day-ci/archive/20251120/202511201656.UKzZspkR-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251120/202511201656.UKzZspkR-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/202511201656.UKzZspkR-lkp@intel.com/

All errors (new ones prefixed by >>):

   ld: mm/huge_memory.o: in function `__folio_split':
>> huge_memory.c:(.text+0x572e): undefined reference to `shmem_uncharge'

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

Re: [akpm-mm:mm-unstable 169/175] huge_memory.c:undefined reference to `shmem_uncharge'

[Balbir Singh]

On 11/20/25 19:28, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
> head:   5a6a999252f63accde14d4851310f10ba962d3bd
> commit: 9a655bd0773b41af6d8515502de102544f3ec4c1 [169/175] mm-huge_memoryc-introduce-folio_split_unmapped-v2
> config: i386-buildonly-randconfig-005-20251119 (https://download.01.org/0day-ci/archive/20251120/202511201656.UKzZspkR-lkp@intel.com/config)
> compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251120/202511201656.UKzZspkR-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/202511201656.UKzZspkR-lkp@intel.com/
> 
> All errors (new ones prefixed by >>):
> 
>    ld: mm/huge_memory.o: in function `__folio_split':
>>> huge_memory.c:(.text+0x572e): undefined reference to `shmem_uncharge'
> 

A fix for this was sent out, it was combined with a Documentation and smatch fix

https://lore.kernel.org/lkml/20251120030709.2933665-1-balbirs@nvidia.com/

Thanks,
Balbir