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charset=us-ascii Content-Disposition: inline In-Reply-To: <20250203225604.44742-5-usamaarif642@gmail.com> Hi Usama, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Usama-Arif/mm-damon-have-damon_get_folio-return-folio-even-for-tail-pages/20250204-065901 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20250203225604.44742-5-usamaarif642%40gmail.com patch subject: [PATCH v4 4/6] mm/damon: introduce DAMOS filter type hugepage config: s390-randconfig-001-20250204 (https://download.01.org/0day-ci/archive/20250205/202502050106.VysTkQFY-lkp@intel.com/config) compiler: s390-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250205/202502050106.VysTkQFY-lkp@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 | Closes: https://lore.kernel.org/oe-kbuild-all/202502050106.VysTkQFY-lkp@intel.com/ All warnings (new ones prefixed by >>): mm/damon/paddr.c: In function 'damos_pa_filter_match': >> mm/damon/paddr.c:230:16: warning: unused variable 'folio_sz' [-Wunused-variable] 230 | size_t folio_sz; | ^~~~~~~~ vim +/folio_sz +230 mm/damon/paddr.c 224 225 static bool damos_pa_filter_match(struct damos_filter *filter, 226 struct folio *folio) 227 { 228 bool matched = false; 229 struct mem_cgroup *memcg; > 230 size_t folio_sz; 231 232 switch (filter->type) { 233 case DAMOS_FILTER_TYPE_ANON: 234 matched = folio_test_anon(folio); 235 break; 236 case DAMOS_FILTER_TYPE_MEMCG: 237 rcu_read_lock(); 238 memcg = folio_memcg_check(folio); 239 if (!memcg) 240 matched = false; 241 else 242 matched = filter->memcg_id == mem_cgroup_id(memcg); 243 rcu_read_unlock(); 244 break; 245 case DAMOS_FILTER_TYPE_YOUNG: 246 matched = damon_folio_young(folio); 247 if (matched) 248 damon_folio_mkold(folio); 249 break; 250 #if defined(CONFIG_PGTABLE_HAS_HUGE_LEAVES) 251 case DAMOS_FILTER_TYPE_HUGEPAGE: 252 folio_sz = folio_size(folio); 253 matched = filter->folio_size.min <= folio_sz && folio_sz <= filter->folio_size.max; 254 break; 255 #endif 256 default: 257 break; 258 } 259 260 return matched == filter->matching; 261 } 262 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki