Re: [PATCH v0 2/2] mm: swap: Forced swap entries release under memory pressure

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

Hi Lei,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]

url:    https://github.com/intel-lab-lkp/linux/commits/Lei-Liu/mm-swap-Gather-swap-entries-and-batch-async-release-core/20250909-145620
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20250909065349.574894-3-liulei.rjpt%40vivo.com
patch subject: [PATCH v0 2/2] mm: swap: Forced swap entries release under memory pressure
config: sparc-randconfig-002-20250910 (https://download.01.org/0day-ci/archive/20250910/202509101302.pptHT8X8-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250910/202509101302.pptHT8X8-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/202509101302.pptHT8X8-lkp@intel.com/

All errors (new ones prefixed by >>):

   sparc64-linux-ld: kernel/exit.o: in function `do_exit':
   exit.c:(.text+0x19f0): undefined reference to `exiting_task_count'
   sparc64-linux-ld: exit.c:(.text+0x1a14): undefined reference to `exiting_task_count'
   sparc64-linux-ld: exit.c:(.text+0x2124): undefined reference to `exiting_task_count'
   sparc64-linux-ld: mm/memory.o: in function `unmap_page_range':
   memory.c:(.text+0x46a4): undefined reference to `add_to_swap_gather_cache'
   sparc64-linux-ld: mm/page_alloc.o: in function `__alloc_pages_slowpath.constprop.124':
>> page_alloc.c:(.text+0xb44c): undefined reference to `flush_cache_if_needed'

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