Re: [PATCH 2/6] mm/page_owner: show modules allocating pages when oom occurred

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

Hi Jinjiang,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on mcgrof/modules-next linus/master v6.5-rc6 next-20230815]
[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/Jinjiang-Tu/mm-page_owner-support-identifying-pages-allocated-by-modules/20230815-195940
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20230815125251.2865852-3-tujinjiang%40huawei.com
patch subject: [PATCH 2/6] mm/page_owner: show modules allocating pages when oom occurred
config: x86_64-randconfig-x073-20230815 (https://download.01.org/0day-ci/archive/20230815/202308152353.TqoJfjIk-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce: (https://download.01.org/0day-ci/archive/20230815/202308152353.TqoJfjIk-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/202308152353.TqoJfjIk-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> kernel/module/page_owner.c:34:6: warning: no previous prototype for function 'po_register_oom_notifier' [-Wmissing-prototypes]
   void po_register_oom_notifier(void)
        ^
   kernel/module/page_owner.c:34:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void po_register_oom_notifier(void)
   ^
   static 
   1 warning generated.


vim +/po_register_oom_notifier +34 kernel/module/page_owner.c

    33	
  > 34	void po_register_oom_notifier(void)

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