tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 282342f2dc97ccf54254c5de51bcc1101229615f commit: 2ec921a84615ee0665bcc369d40b92e2bed66cd5 [3575/3976] mm/demotion: expose memory tier details via sysfs config: loongarch-randconfig-r003-20220830 (https://download.01.org/0day-ci/archive/20220830/202208302355.iv88x9c8-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=2ec921a84615ee0665bcc369d40b92e2bed66cd5 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 2ec921a84615ee0665bcc369d40b92e2bed66cd5 # save the config file COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 ARCH=loongarch If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): mm/memory-tiers.c: In function 'toptier_nodes_show': >> mm/memory-tiers.c:647:49: error: 'top_tier_adistance' undeclared (first use in this function) 647 | if (memtier->adistance_start >= top_tier_adistance) | ^~~~~~~~~~~~~~~~~~ mm/memory-tiers.c:647:49: note: each undeclared identifier is reported only once for each function it appears in vim +/top_tier_adistance +647 mm/memory-tiers.c 637 638 static ssize_t toptier_nodes_show(struct device *dev, 639 struct device_attribute *attr, char *buf) 640 { 641 int ret; 642 nodemask_t nmask, top_tier_mask = NODE_MASK_NONE; 643 struct memory_tier *memtier = to_memory_tier(dev); 644 645 mutex_lock(&memory_tier_lock); 646 list_for_each_entry(memtier, &memory_tiers, list) { > 647 if (memtier->adistance_start >= top_tier_adistance) 648 break; 649 nmask = get_memtier_nodemask(memtier); 650 nodes_or(top_tier_mask, top_tier_mask, nmask); 651 } 652 653 ret = sysfs_emit(buf, "%*pbl\n", nodemask_pr_args(&top_tier_mask)); 654 mutex_unlock(&memory_tier_lock); 655 return ret; 656 } 657 static DEVICE_ATTR_RO(toptier_nodes); 658 -- 0-DAY CI Kernel Test Service https://01.org/lkp
