Hi, kernel test robot noticed the following build errors: [auto build test ERROR on linus/master] [also build test ERROR on v6.9-rc6 next-20240502] [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/mhkelley58-gmail-com/hv_balloon-Enable-hot-add-for-memblock-sizes-128-MiB/20240501-232643 base: linus/master patch link: https://lore.kernel.org/r/20240501151458.2807-2-mhklinux%40outlook.com patch subject: [PATCH v2 2/2] hv_balloon: Enable hot-add for memblock sizes > 128 MiB config: i386-randconfig-011-20240502 (https://download.01.org/0day-ci/archive/20240503/202405030421.x7E4hUI7-lkp@xxxxxxxxx/config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240503/202405030421.x7E4hUI7-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202405030421.x7E4hUI7-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: drivers/hv/hv_balloon.o: in function `init_balloon_drv': >> drivers/hv/hv_balloon.c:2147:(.init.text+0x4): undefined reference to `memory_block_size_bytes' vim +2147 drivers/hv/hv_balloon.c 2136 2137 static int __init init_balloon_drv(void) 2138 { 2139 /* 2140 * Hot-add must operate in chunks that are of size 2141 * equal to the memory block size because that's 2142 * what the core add_memory() interface requires. 2143 * The Hyper-V interface requires that the memory block 2144 * size be a power of 2, which is guaranteed by the 2145 * check in memory_dev_init(). 2146 */ > 2147 ha_pages_in_chunk = memory_block_size_bytes() / PAGE_SIZE; 2148 2149 return vmbus_driver_register(&balloon_drv); 2150 } 2151 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
