Hi Keith, kernel test robot noticed the following build warnings: [auto build test WARNING on axboe-block/for-next] [also build test WARNING on next-20230406] [cannot apply to linus/master v6.3-rc6] [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/Keith-Busch/block-add-request-polling-helper/20230408-031926 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next patch link: https://lore.kernel.org/r/20230407191636.2631046-3-kbusch%40meta.com patch subject: [PATCHv2 2/5] nvme: simplify passthrough bio cleanup config: x86_64-rhel-8.3 (https://download.01.org/0day-ci/archive/20230411/202304110443.e026C3nq-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/9a32e7ca02dd8cff559b273fe161b5347b5b5c97 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Keith-Busch/block-add-request-polling-helper/20230408-031926 git checkout 9a32e7ca02dd8cff559b273fe161b5347b5b5c97 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/nvme/host/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304110443.e026C3nq-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/nvme/host/ioctl.c: In function 'nvme_submit_user_cmd': drivers/nvme/host/ioctl.c:232:21: warning: variable 'bio' set but not used [-Wunused-but-set-variable] 232 | struct bio *bio; | ^~~ drivers/nvme/host/ioctl.c: In function 'nvme_uring_cmd_end_io_meta': >> drivers/nvme/host/ioctl.c:528:36: warning: unused variable 'pdu' [-Wunused-variable] 528 | struct nvme_uring_cmd_pdu *pdu = nvme_uring_cmd_pdu(ioucmd); | ^~~ vim +/pdu +528 drivers/nvme/host/ioctl.c c0a7ba77e81b84 Jens Axboe 2022-09-21 523 c0a7ba77e81b84 Jens Axboe 2022-09-21 524 static enum rq_end_io_ret nvme_uring_cmd_end_io_meta(struct request *req, c0a7ba77e81b84 Jens Axboe 2022-09-21 525 blk_status_t err) c0a7ba77e81b84 Jens Axboe 2022-09-21 526 { c0a7ba77e81b84 Jens Axboe 2022-09-21 527 struct io_uring_cmd *ioucmd = req->end_io_data; c0a7ba77e81b84 Jens Axboe 2022-09-21 @528 struct nvme_uring_cmd_pdu *pdu = nvme_uring_cmd_pdu(ioucmd); c0a7ba77e81b84 Jens Axboe 2022-09-21 529 void *cookie = READ_ONCE(ioucmd->cookie); c0a7ba77e81b84 Jens Axboe 2022-09-21 530 c0a7ba77e81b84 Jens Axboe 2022-09-21 531 /* c0a7ba77e81b84 Jens Axboe 2022-09-21 532 * For iopoll, complete it directly. c0a7ba77e81b84 Jens Axboe 2022-09-21 533 * Otherwise, move the completion to task work. c0a7ba77e81b84 Jens Axboe 2022-09-21 534 */ c0a7ba77e81b84 Jens Axboe 2022-09-21 535 if (cookie != NULL && blk_rq_is_poll(req)) 9d2789ac9d60c0 Jens Axboe 2023-03-20 536 nvme_uring_task_meta_cb(ioucmd, IO_URING_F_UNLOCKED); c0a7ba77e81b84 Jens Axboe 2022-09-21 537 else c0a7ba77e81b84 Jens Axboe 2022-09-21 538 io_uring_cmd_complete_in_task(ioucmd, nvme_uring_task_meta_cb); c0a7ba77e81b84 Jens Axboe 2022-09-21 539 de671d6116b521 Jens Axboe 2022-09-21 540 return RQ_END_IO_NONE; 456cba386e94f2 Kanchan Joshi 2022-05-11 541 } 456cba386e94f2 Kanchan Joshi 2022-05-11 542 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
