Hi Vitaly, kernel test robot noticed the following build errors:
[auto build test ERROR on tip/x86/core] [also build test ERROR on linus/master v6.17-rc1] [cannot apply to next-20250815] [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/Vitaly-Kuznetsov/x86-hyperv-Fix-kdump-on-Azure-CVMs/20250815-214053 base: tip/x86/core patch link: https://lore.kernel.org/r/20250815133725.1591863-1-vkuznets%40redhat.com patch subject: [PATCH] x86/hyperv: Fix kdump on Azure CVMs config: arm64-randconfig-003-20250816 (https://download.01.org/0day-ci/archive/20250816/202508161430.0gc3nt8j-...@intel.com/config) compiler: aarch64-linux-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250816/202508161430.0gc3nt8j-...@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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508161430.0gc3nt8j-...@intel.com/ All errors (new ones prefixed by >>): drivers/hv/vmbus_drv.c: In function 'hv_kexec_handler': >> drivers/hv/vmbus_drv.c:2786:2: error: implicit declaration of function >> 'hv_ivm_clear_host_access' [-Werror=implicit-function-declaration] hv_ivm_clear_host_access(); ^~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/hv_ivm_clear_host_access +2786 drivers/hv/vmbus_drv.c 2778 2779 static void hv_kexec_handler(void) 2780 { 2781 hv_stimer_global_cleanup(); 2782 vmbus_initiate_unload(false); 2783 /* Make sure conn_state is set as hv_synic_cleanup checks for it */ 2784 mb(); 2785 cpuhp_remove_state(hyperv_cpuhp_online); > 2786 hv_ivm_clear_host_access(); 2787 }; 2788 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki