Hi Damien, kernel test robot noticed the following build warnings: [auto build test WARNING on axboe-block/for-next] [also build test WARNING on linus/master v6.9-rc2 next-20240402] [cannot apply to jejb-scsi/for-next device-mapper-dm/for-next mkp-scsi/for-next] [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/Damien-Le-Moal/block-Restore-sector-of-flush-requests/20240402-204657 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next patch link: https://lore.kernel.org/r/20240402123907.512027-8-dlemoal%40kernel.org patch subject: [PATCH v4 07/28] block: Introduce zone write plugging config: i386-buildonly-randconfig-003-20240403 (https://download.01.org/0day-ci/archive/20240403/202404031242.Oy7q9BWh-lkp@xxxxxxxxx/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240403/202404031242.Oy7q9BWh-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/202404031242.Oy7q9BWh-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> block/blk-zoned.c:1435:10: warning: variable 'ret' is uninitialized when used here [-Wuninitialized] 1435 | return ret; | ^~~ block/blk-zoned.c:1415:9: note: initialize the variable 'ret' to silence this warning 1415 | int ret; | ^ | = 0 1 warning generated. vim +/ret +1435 block/blk-zoned.c 1410 1411 static int disk_alloc_zone_resources(struct gendisk *disk, 1412 unsigned int pool_size) 1413 { 1414 unsigned int i; 1415 int ret; 1416 1417 disk->zone_wplugs_hash_bits = 1418 min(ilog2(pool_size) + 1, BLK_ZONE_WPLUG_MAX_HASH_BITS); 1419 1420 disk->zone_wplugs_hash = 1421 kcalloc(disk_zone_wplugs_hash_size(disk), 1422 sizeof(struct hlist_head), GFP_KERNEL); 1423 if (!disk->zone_wplugs_hash) 1424 return -ENOMEM; 1425 1426 for (i = 0; i < disk_zone_wplugs_hash_size(disk); i++) 1427 INIT_HLIST_HEAD(&disk->zone_wplugs_hash[i]); 1428 1429 disk->zone_wplugs_pool = mempool_create_kmalloc_pool(pool_size, 1430 sizeof(struct blk_zone_wplug)); 1431 if (!disk->zone_wplugs_pool) { 1432 kfree(disk->zone_wplugs_hash); 1433 disk->zone_wplugs_hash = NULL; 1434 disk->zone_wplugs_hash_bits = 0; > 1435 return ret; 1436 } 1437 1438 return 0; 1439 } 1440 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
