Hi Praveen, kernel test robot noticed the following build warnings:
[auto build test WARNING on next-20251117] [cannot apply to tip/x86/core linus/master v6.18-rc6 v6.18-rc5 v6.18-rc4 v6.18-rc6] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Praveen-K-Paladugu/hyperv-Add-definitions-for-MSHV-sleep-state-configuration/20251118-051204 base: next-20251117 patch link: https://lore.kernel.org/r/20251117210855.108126-4-prapal%40linux.microsoft.com patch subject: [PATCH v5 3/3] hyperv: Cleanly shutdown root partition with MSHV config: arm64-randconfig-003-20251118 (https://download.01.org/0day-ci/archive/20251118/[email protected]/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251118/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All warnings (new ones prefixed by >>): drivers/hv/mshv_common.c:210:6: warning: no previous prototype for function 'hv_sleep_notifiers_register' [-Wmissing-prototypes] 210 | void hv_sleep_notifiers_register(void) | ^ drivers/hv/mshv_common.c:210:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 210 | void hv_sleep_notifiers_register(void) | ^ | static >> drivers/hv/mshv_common.c:224:6: warning: no previous prototype for function >> 'hv_machine_power_off' [-Wmissing-prototypes] 224 | void hv_machine_power_off(void) | ^ drivers/hv/mshv_common.c:224:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 224 | void hv_machine_power_off(void) | ^ | static 2 warnings generated. vim +/hv_machine_power_off +224 drivers/hv/mshv_common.c 219 220 /* 221 * Power off the machine by entering S5 sleep state via Hyper-V hypercall. 222 * This call does not return if successful. 223 */ > 224 void hv_machine_power_off(void) 225 { 226 unsigned long flags; 227 struct hv_input_enter_sleep_state *in; 228 229 local_irq_save(flags); 230 in = *this_cpu_ptr(hyperv_pcpu_input_arg); 231 in->sleep_state = HV_SLEEP_STATE_S5; 232 233 (void)hv_do_hypercall(HVCALL_ENTER_SLEEP_STATE, in, NULL); 234 local_irq_restore(flags); 235 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
