tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 195a402a75791e6e0d96d9da27ca77671bc656a8 commit: 136367290ea5d7b5d05696189e9fd6162b9d9742 [5237/7353] drm/xe: Introduce xe_ggtt_print_holes config: x86_64-randconfig-002-20240829 (https://download.01.org/0day-ci/archive/20240829/202408290916.B9yUmPQD-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240829/202408290916.B9yUmPQD-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/202408290916.B9yUmPQD-lkp@xxxxxxxxx/ Note: the linux-next/master HEAD 195a402a75791e6e0d96d9da27ca77671bc656a8 builds fine. It may have been fixed somewhere. All errors (new ones prefixed by >>): >> drivers/gpu/drm/xe/xe_ggtt.c:714:3: error: variable 'total' is uninitialized when used here [-Werror,-Wuninitialized] 714 | total += hole_size; | ^~~~~ drivers/gpu/drm/xe/xe_ggtt.c:702:11: note: initialize the variable 'total' to silence this warning 702 | u64 total; | ^ | = 0 1 error generated. vim +/total +714 drivers/gpu/drm/xe/xe_ggtt.c 685 686 /** 687 * xe_ggtt_print_holes - Print holes 688 * @ggtt: the &xe_ggtt to be inspected 689 * @alignment: min alignment 690 * @p: the &drm_printer 691 * 692 * Print GGTT ranges that are available and return total size available. 693 * 694 * Return: Total available size. 695 */ 696 u64 xe_ggtt_print_holes(struct xe_ggtt *ggtt, u64 alignment, struct drm_printer *p) 697 { 698 const struct drm_mm *mm = &ggtt->mm; 699 const struct drm_mm_node *entry; 700 u64 hole_min_start = xe_wopcm_size(tile_to_xe(ggtt->tile)); 701 u64 hole_start, hole_end, hole_size; 702 u64 total; 703 char buf[10]; 704 705 mutex_lock(&ggtt->lock); 706 707 drm_mm_for_each_hole(entry, mm, hole_start, hole_end) { 708 hole_start = max(hole_start, hole_min_start); 709 hole_start = ALIGN(hole_start, alignment); 710 hole_end = ALIGN_DOWN(hole_end, alignment); 711 if (hole_start >= hole_end) 712 continue; 713 hole_size = hole_end - hole_start; > 714 total += hole_size; -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
