tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: b51533d469099a915373a13041776b93b232ff65 commit: c6ce2becb89528f83c1ad3c0607ad05baecebc0a [9677/9706] arm64/cpufeature: Fix pseudo nmi identifier undeclaration complilation error config: arm64-randconfig-001-20240523 (https://download.01.org/0day-ci/archive/20240523/202405230925.19JMExYE-lkp@i...) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project fa9b1be45088dce1e4b602d451f118128b94237b) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240523/202405230925.19JMExYE-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/202405230925.19JMExYE-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from arch/arm64/kernel/cpufeature.c:67: In file included from include/linux/crash_dump.h:5: In file included from include/linux/kexec.h:18: In file included from include/linux/crash_core.h:6: In file included from include/linux/elfcore.h:11: In file included from include/linux/ptrace.h:10: In file included from include/linux/pid_namespace.h:7: In file included from include/linux/mm.h:2234: include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ 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_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~

...

arch/arm64/kernel/cpufeature.c:2129:13: warning: unused variable 'enable_pseudo_nmi' [-Wunused-variable] 2129 | static bool enable_pseudo_nmi; | ^~~~~~~~~~~~~~~~~ 5 warnings generated.

vim +/enable_pseudo_nmi +2129 arch/arm64/kernel/cpufeature.c 3e6c69a058deaa Mark Brown 2019-12-09 2127 f72387e1f8bc99 Mark Brown 2022-11-03 2128 #if IS_ENABLED(CONFIG_ARM64_PSEUDO_NMI) || IS_ENABLED(CONFIG_ARM64_NMI) bc3c03ccb4641f Julien Thierry 2019-01-31 @2129 static bool enable_pseudo_nmi; f72387e1f8bc99 Mark Brown 2022-11-03 2130 #endif bc3c03ccb4641f Julien Thierry 2019-01-31 2131 :::::: The code at line 2129 was first introduced by commit :::::: bc3c03ccb4641fb940b27a0d369431876923a8fe arm64: Enable the support of pseudo-NMIs :::::: TO: Julien Thierry <julien.thierry@arm.com> :::::: CC: Catalin Marinas <catalin.marinas@arm.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki