Hi Dev, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on linus/master v6.11 next-20240918] [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/Dev-Jain/mm-Abstract-THP-allocation/20240916-174543 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20240916094309.1226908-2-dev.jain%40arm.com patch subject: [PATCH v4 1/2] mm: Abstract THP allocation config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20240919/202409191416.9etlfugV-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240919/202409191416.9etlfugV-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/202409191416.9etlfugV-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): mm/huge_memory.c: In function 'vma_alloc_anon_folio_pmd': >> mm/huge_memory.c:1152:23: warning: unused variable 'haddr' [-Wunused-variable] 1152 | unsigned long haddr = addr & HPAGE_PMD_MASK; | ^~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [m]: - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m] vim +/haddr +1152 mm/huge_memory.c 1148 1149 static struct folio *vma_alloc_anon_folio_pmd(struct vm_area_struct *vma, 1150 unsigned long addr) 1151 { > 1152 unsigned long haddr = addr & HPAGE_PMD_MASK; 1153 gfp_t gfp = vma_thp_gfp_mask(vma); 1154 const int order = HPAGE_PMD_ORDER; 1155 struct folio *folio = vma_alloc_folio(gfp, order, vma, haddr, true); 1156 1157 if (unlikely(!folio)) { 1158 count_vm_event(THP_FAULT_FALLBACK); 1159 count_mthp_stat(order, MTHP_STAT_ANON_FAULT_FALLBACK); 1160 goto out; 1161 } 1162 1163 VM_BUG_ON_FOLIO(!folio_test_large(folio), folio); 1164 if (mem_cgroup_charge(folio, vma->vm_mm, gfp)) { 1165 folio_put(folio); 1166 count_vm_event(THP_FAULT_FALLBACK); 1167 count_vm_event(THP_FAULT_FALLBACK_CHARGE); 1168 count_mthp_stat(order, MTHP_STAT_ANON_FAULT_FALLBACK); 1169 count_mthp_stat(order, MTHP_STAT_ANON_FAULT_FALLBACK_CHARGE); 1170 return NULL; 1171 } 1172 folio_throttle_swaprate(folio, gfp); 1173 1174 folio_zero_user(folio, addr); 1175 /* 1176 * The memory barrier inside __folio_mark_uptodate makes sure that 1177 * folio_zero_user writes become visible before the set_pmd_at() 1178 * write. 1179 */ 1180 __folio_mark_uptodate(folio); 1181 out: 1182 return folio; 1183 } 1184 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
