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@i...) 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@i...) 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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