[openeuler:OLK-6.6 2687/2687] arch/x86/events/zhaoxin/uncore.c:2761:6: warning: no previous prototype for function 'kx5000_uncore_cpu_init'

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

Hi leoliu-oc,

FYI, the error/warning still remains.

tree:   https://gitee.com/openeuler/kernel.git OLK-6.6
head:   08d6c0b8f95e9c676bd9bc28b12d198df722218e
commit: dc5b97374ba722156acbdfc4e3adbc69e2dbe7f4 [2687/2687] perf/x86/zhaoxin/uncore: Add KX-7000 support
config: x86_64-buildonly-randconfig-2003-20250818 (https://download.01.org/0day-ci/archive/20250818/202508180932.bKWZIbb7-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250818/202508180932.bKWZIbb7-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/202508180932.bKWZIbb7-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from arch/x86/events/zhaoxin/uncore.c:3:
   In file included from arch/x86/events/zhaoxin/uncore.h:3:
   In file included from include/linux/pci.h:1663:
   In file included from include/linux/dmapool.h:14:
   In file included from include/linux/scatterlist.h:8:
   In file included from include/linux/mm.h:2193:
   include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     522 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> arch/x86/events/zhaoxin/uncore.c:2761:6: warning: no previous prototype for function 'kx5000_uncore_cpu_init' [-Wmissing-prototypes]
    2761 | void kx5000_uncore_cpu_init(void)
         |      ^
   arch/x86/events/zhaoxin/uncore.c:2761:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
    2761 | void kx5000_uncore_cpu_init(void)
         | ^
         | static 
>> arch/x86/events/zhaoxin/uncore.c:2770:6: warning: no previous prototype for function 'kh40000_uncore_cpu_init' [-Wmissing-prototypes]
    2770 | void kh40000_uncore_cpu_init(void)
         |      ^
   arch/x86/events/zhaoxin/uncore.c:2770:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
    2770 | void kh40000_uncore_cpu_init(void)
         | ^
         | static 
>> arch/x86/events/zhaoxin/uncore.c:2775:5: warning: no previous prototype for function 'kh40000_uncore_pci_init' [-Wmissing-prototypes]
    2775 | int kh40000_uncore_pci_init(void)
         |     ^
   arch/x86/events/zhaoxin/uncore.c:2775:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
    2775 | int kh40000_uncore_pci_init(void)
         | ^
         | static 
   arch/x86/events/zhaoxin/uncore.c:2791:6: warning: no previous prototype for function 'kx8000_uncore_cpu_init' [-Wmissing-prototypes]
    2791 | void kx8000_uncore_cpu_init(void)
         |      ^
   arch/x86/events/zhaoxin/uncore.c:2791:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
    2791 | void kx8000_uncore_cpu_init(void)
         | ^
         | static 
   arch/x86/events/zhaoxin/uncore.c:2796:5: warning: no previous prototype for function 'kx8000_uncore_pci_init' [-Wmissing-prototypes]
    2796 | int kx8000_uncore_pci_init(void)
         |     ^
   arch/x86/events/zhaoxin/uncore.c:2796:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
    2796 | int kx8000_uncore_pci_init(void)
         | ^
         | static 
   arch/x86/events/zhaoxin/uncore.c:2804:6: warning: no previous prototype for function 'kx8000_uncore_mmio_init' [-Wmissing-prototypes]
    2804 | void kx8000_uncore_mmio_init(void)
         |      ^
   arch/x86/events/zhaoxin/uncore.c:2804:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
    2804 | void kx8000_uncore_mmio_init(void)
         | ^
         | static 
   7 warnings generated.


vim +/kx5000_uncore_cpu_init +2761 arch/x86/events/zhaoxin/uncore.c

  2760	
> 2761	void kx5000_uncore_cpu_init(void)
  2762	{
  2763		uncore_msr_uncores = kx5000_msr_uncores;
  2764	}
  2765	
  2766	static const struct zhaoxin_uncore_init_fun kx5000_uncore_init __initconst = {
  2767		.cpu_init = kx5000_uncore_cpu_init,
  2768	};
  2769	
> 2770	void kh40000_uncore_cpu_init(void)
  2771	{
  2772		uncore_msr_uncores = kh40000_msr_uncores;
  2773	}
  2774	
> 2775	int kh40000_uncore_pci_init(void)
  2776	{
  2777		int ret = kh40000_pci2node_map_init();/*pci_bus to package mapping, do nothing*/
  2778	
  2779		if (ret)
  2780			return ret;
  2781		uncore_pci_uncores = kh40000_pci_uncores;
  2782		uncore_pci_driver = &kh40000_uncore_pci_driver;
  2783		return 0;
  2784	}
  2785	

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