tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: d37e1e4c52bc60578969f391fb81f947c3e83118 commit: 3a6bc36161369a1772af565b59c6e290ee189afc [6971/7658] mm,page_owner: display all stacks and their count config: x86_64-randconfig-161-20240215 (https://download.01.org/0day-ci/archive/20240216/202402162252.FpEa3ZUY-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 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/202402162252.FpEa3ZUY-lkp@xxxxxxxxx/ smatch warnings: mm/page_owner.c:860 stack_print() warn: unsigned 'nr_entries' is never less than zero. vim +/nr_entries +860 mm/page_owner.c 848 849 static int stack_print(struct seq_file *m, void *v) 850 { 851 int i; 852 struct stack *stack = v; 853 unsigned long *entries; 854 unsigned long nr_entries; 855 struct stack_record *stack_record = stack->stack_record; 856 857 nr_entries = stack_record->size; 858 entries = stack_record->entries; 859 > 860 if (!nr_entries || nr_entries < 0 || 861 refcount_read(&stack_record->count) < 2) 862 return 0; 863 864 for (i = 0; i < nr_entries; i++) 865 seq_printf(m, " %pS\n", (void *)entries[i]); 866 seq_printf(m, "stack_count: %d\n\n", refcount_read(&stack_record->count)); 867 868 return 0; 869 } 870 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
