Hi Xu, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: b5504db0db8375a77340b5bb54c17cfb75d3c754 commit: 0c40cea7cfc2d1d9762e6fbbb531a43e6dac95ca [1315/1315] NMI: Enable arm-pmu interrupt as NMI in Acensed. config: arm64-randconfig-004-20241128 (https://download.01.org/0day-ci/archive/20241129/202411290101.y0Trpl2b-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241129/202411290101.y0Trpl2b-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/202411290101.y0Trpl2b-lkp@intel.com/ All errors (new ones prefixed by >>): arch/arm64/mm/init.c:469:13: warning: no previous prototype for 'arm64_memblock_init' [-Wmissing-prototypes] 469 | void __init arm64_memblock_init(void) | ^~~~~~~~~~~~~~~~~~~ arch/arm64/mm/init.c: In function 'ascend_enable_all_features': arch/arm64/mm/init.c:787:17: error: 'mem_sleep_current' undeclared (first use in this function) 787 | mem_sleep_current = PM_SUSPEND_ON; | ^~~~~~~~~~~~~~~~~ arch/arm64/mm/init.c:787:17: note: each undeclared identifier is reported only once for each function it appears in

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arch/arm64/mm/init.c:790:17: error: 'pmu_nmi_enable' undeclared (first use in this function); did you mean 'cpuhp_smt_enable'? 790 | pmu_nmi_enable = true; | ^~~~~~~~~~~~~~ | cpuhp_smt_enable

vim +790 arch/arm64/mm/init.c 774 775 void ascend_enable_all_features(void) 776 { 777 if (IS_ENABLED(CONFIG_ASCEND_DVPP_MMAP)) 778 enable_mmap_dvpp = 1; 779 780 if (IS_ENABLED(CONFIG_ASCEND_IOPF_HIPRI)) 781 enable_iopf_hipri = 1; 782 783 if (IS_ENABLED(CONFIG_ASCEND_CHARGE_MIGRATE_HUGEPAGES)) 784 enable_charge_mighp = 1; 785 786 if (IS_ENABLED(CONFIG_SUSPEND)) 787 mem_sleep_current = PM_SUSPEND_ON; 788 789 if (IS_ENABLED(CONFIG_PMU_WATCHDOG))

790 pmu_nmi_enable = true; 791

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