Hi Oscar, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v6.0-rc4] [cannot apply to akpm-mm/mm-everything next-20220901] [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/Oscar-Salvador/page_owner-print-stacks-and-their-counter/20220905-111139 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7e18e42e4b280c85b76967a9106a13ca61c16179 config: microblaze-randconfig-m041-20220905 (https://download.01.org/0day-ci/archive/20220906/202209060655.H9CK1KgC-lkp@xxxxxxxxx/config) compiler: microblaze-linux-gcc (GCC) 12.1.0 If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> smatch warnings: lib/stackdepot.c:586 stack_depot_print_stacks_threshold() warn: unsigned 'stack->size' is never less than zero. vim +586 lib/stackdepot.c 568 569 int stack_depot_print_stacks_threshold(char *buf, size_t size, loff_t *pos) 570 { 571 int i = *pos, ret = 0; 572 struct stack_record **stacks, *stack; 573 static struct stack_record *last = NULL; 574 unsigned long stack_table_entries = stack_hash_mask + 1; 575 576 /* Continue from the last stack if we have one */ 577 if (last) { 578 stack = last->next; 579 } else { 580 new_table: 581 stacks = &stack_table[i]; 582 stack = (struct stack_record *)stacks; 583 } 584 585 for (; stack; stack = stack->next) { > 586 if (!stack->size || stack->size < 0 || -- 0-DAY CI Kernel Test Service https://01.org/lkp