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charset=us-ascii Content-Disposition: inline In-Reply-To: <20260206-feature-dynamic_isolcpus_dhei-v1-1-00a711eb0c74@gmail.com> Hi Qiliang, [This is a private test report for your RFC patch.] kernel test robot noticed the following build warnings: [auto build test WARNING on 1f97d9dcf53649c41c33227b345a36902cbb08ad] url: https://github.com/intel-lab-lkp/linux/commits/Qiliang-Yuan/sched-isolation-Remove-__init-restriction-from-housekeeping-cores/20260206-150801 base: 1f97d9dcf53649c41c33227b345a36902cbb08ad patch link: https://lore.kernel.org/r/20260206-feature-dynamic_isolcpus_dhei-v1-1-00a711eb0c74%40gmail.com patch subject: [PATCH RFC 01/12] sched/isolation: Remove __init restriction from housekeeping cores config: arc-randconfig-002-20260208 (https://download.01.org/0day-ci/archive/20260208/202602080949.LInEjVb0-lkp@intel.com/config) compiler: arc-linux-gcc (GCC) 12.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260208/202602080949.LInEjVb0-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202602080949.LInEjVb0-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from kernel/sched/build_utility.c:101: kernel/sched/isolation.c: In function 'housekeeping_setup_type': >> kernel/sched/isolation.c:115:13: warning: the comparison will always evaluate as 'true' for the address of 'cpumasks' will never be NULL [-Waddress] 115 | if (!housekeeping.cpumasks[type]) | ^ kernel/sched/isolation.c:25:23: note: 'cpumasks' declared here 25 | cpumask_var_t cpumasks[HK_TYPE_MAX]; | ^~~~~~~~ vim +115 kernel/sched/isolation.c 106 107 static void housekeeping_setup_type(enum hk_type type, 108 cpumask_var_t housekeeping_staging) 109 { 110 unsigned int gfp = GFP_KERNEL; 111 112 if (system_state < SYSTEM_RUNNING) 113 gfp = GFP_NOWAIT; 114 > 115 if (!housekeeping.cpumasks[type]) 116 alloc_cpumask_var(&housekeeping.cpumasks[type], gfp); 117 118 cpumask_copy(housekeeping.cpumasks[type], 119 housekeeping_staging); 120 } 121 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki