Re: [RFC PATCH] x86/topo: Unify srat_detect_node among amd/intel/hygon

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

Hi Nikola,

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

[auto build test WARNING on linus/master]
[also build test WARNING on tip/x86/core v7.0-rc6 next-20260327]
[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/Nikola-Z-Ivanov/x86-topo-Unify-srat_detect_node-among-amd-intel-hygon/20260330-114947
base:   linus/master
patch link:    https://lore.kernel.org/r/20260329120841.2118684-1-zlatistiv%40gmail.com
patch subject: [RFC PATCH] x86/topo: Unify srat_detect_node among amd/intel/hygon
config: s390-allnoconfig (https://download.01.org/0day-ci/archive/20260331/202603310756.AoXVYvDd-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 2cd67b8b69f78e3f95918204320c3075a74ba16c)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260331/202603310756.AoXVYvDd-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/202603310756.AoXVYvDd-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from arch/s390/kernel/asm-offsets.c:12:
   In file included from include/linux/pgtable.h:6:
   In file included from arch/s390/include/asm/pgtable.h:19:
   In file included from include/linux/radix-tree.h:21:
   In file included from include/linux/xarray.h:16:
   In file included from include/linux/gfp.h:8:
>> include/linux/topology.h:44:30: warning: declaration of 'struct cpuinfo_x86' will not be visible outside of this function [-Wvisibility]
      44 | void srat_detect_node(struct cpuinfo_x86 *c);
         |                              ^
   1 warning generated.
--
   In file included from mm/oom_kill.c:21:
   In file included from include/linux/oom.h:6:
   In file included from include/linux/sched/signal.h:9:
   In file included from include/linux/sched/task.h:13:
   In file included from include/linux/uaccess.h:13:
   In file included from arch/s390/include/asm/uaccess.h:16:
   In file included from include/linux/pgtable.h:6:
   In file included from arch/s390/include/asm/pgtable.h:19:
   In file included from include/linux/radix-tree.h:21:
   In file included from include/linux/xarray.h:16:
   In file included from include/linux/gfp.h:8:
>> include/linux/topology.h:44:30: warning: declaration of 'struct cpuinfo_x86' will not be visible outside of this function [-Wvisibility]
      44 | void srat_detect_node(struct cpuinfo_x86 *c);
         |                              ^
   mm/oom_kill.c:511:28: warning: variable 'oom_reaper_th' set but not used [-Wunused-but-set-global]
     511 | static struct task_struct *oom_reaper_th;
         |                            ^
   2 warnings generated.
--
   In file included from mm/util.c:2:
   In file included from include/linux/mm.h:8:
   In file included from include/linux/gfp.h:8:
>> include/linux/topology.h:44:30: warning: declaration of 'struct cpuinfo_x86' will not be visible outside of this function [-Wvisibility]
      44 | void srat_detect_node(struct cpuinfo_x86 *c);
         |                              ^
   mm/util.c:198:22: warning: variable 'user_buckets' set but not used [-Wunused-but-set-global]
     198 | static kmem_buckets *user_buckets __ro_after_init;
         |                      ^
   2 warnings generated.
--
   scripts/mod/modpost.c:59:13: warning: variable 'extra_warn' set but not used [-Wunused-but-set-global]
      59 | static bool extra_warn;
         |             ^
   1 warning generated.
   In file included from arch/s390/kernel/asm-offsets.c:12:
   In file included from include/linux/pgtable.h:6:
   In file included from arch/s390/include/asm/pgtable.h:19:
   In file included from include/linux/radix-tree.h:21:
   In file included from include/linux/xarray.h:16:
   In file included from include/linux/gfp.h:8:
>> include/linux/topology.h:44:30: warning: declaration of 'struct cpuinfo_x86' will not be visible outside of this function [-Wvisibility]
      44 | void srat_detect_node(struct cpuinfo_x86 *c);
         |                              ^
   1 warning generated.
   In file included from kernel/sched/rq-offsets.c:5:
   In file included from kernel/sched/sched.h:15:
   In file included from include/linux/sched/mm.h:9:
   In file included from include/linux/gfp.h:8:
>> include/linux/topology.h:44:30: warning: declaration of 'struct cpuinfo_x86' will not be visible outside of this function [-Wvisibility]
      44 | void srat_detect_node(struct cpuinfo_x86 *c);
         |                              ^
   1 warning generated.


vim +44 include/linux/topology.h

    42	
    43	int arch_update_cpu_topology(void);
  > 44	void srat_detect_node(struct cpuinfo_x86 *c);
    45	

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