Re: [RFC PATCH v4 1/3] mm/memcontrol: implement memcg.interleave_weights

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

Hi Gregory,

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

[auto build test ERROR on cxl/next]
[also build test ERROR on tj-cgroup/for-next cxl/pending v6.6]
[cannot apply to akpm-mm/mm-everything linus/master next-20231109]
[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/Gregory-Price/mm-mempolicy-implement-weighted-interleave/20231109-092543
base:   https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git next
patch link:    https://lore.kernel.org/r/20231109002517.106829-2-gregory.price%40memverge.com
patch subject: [RFC PATCH v4 1/3] mm/memcontrol: implement memcg.interleave_weights
config: alpha-allnoconfig (https://download.01.org/0day-ci/archive/20231109/202311091652.AOSQhXGV-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231109/202311091652.AOSQhXGV-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/202311091652.AOSQhXGV-lkp@intel.com/

All errors (new ones prefixed by >>):

   arch/alpha/mm/init.c:261:1: warning: no previous prototype for 'srm_paging_stop' [-Wmissing-prototypes]
     261 | srm_paging_stop (void)
         | ^~~~~~~~~~~~~~~
   In file included from include/linux/swap.h:9,
                    from arch/alpha/mm/init.c:20:
>> include/linux/memcontrol.h:1620:21: error: 'mem_cgroup_get_il_weights' defined but not used [-Werror=unused-function]
    1620 | static unsigned int mem_cgroup_get_il_weights(nodemask_t *nodes,
         |                     ^~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/memcontrol.h:1618:22: error: 'mem_cgroup_get_il_weight' defined but not used [-Werror=unused-function]
    1618 | static unsigned char mem_cgroup_get_il_weight(unsigned int nid) { return 0; }
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/mem_cgroup_get_il_weights +1620 include/linux/memcontrol.h

  1617	
> 1618	static unsigned char mem_cgroup_get_il_weight(unsigned int nid) { return 0; }
  1619	
> 1620	static unsigned int mem_cgroup_get_il_weights(nodemask_t *nodes,
  1621						      unsigned char *weights)
  1622	{
  1623		return 0;
  1624	}
  1625	#endif /* CONFIG_MEMCG */
  1626	

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