Hi Kanchan, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on axboe-block/for-next] [also build test WARNING on linus/master next-20220805] [cannot apply to hch-configfs/for-next v5.19] [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/Kanchan-Joshi/fs-add-file_operations-uring_cmd_iopoll/20220806-004320 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next config: ia64-randconfig-s032-20220807 (https://download.01.org/0day-ci/archive/20220807/202208072057.wTajgd76-lkp@xxxxxxxxx/config) compiler: ia64-linux-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/0964795577fbf09d8b315269504b5e87b5ac492b git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Kanchan-Joshi/fs-add-file_operations-uring_cmd_iopoll/20220806-004320 git checkout 0964795577fbf09d8b315269504b5e87b5ac492b # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/nvme/host/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/nvme/host/ioctl.c:639:37: sparse: sparse: Using plain integer as NULL pointer vim +639 drivers/nvme/host/ioctl.c 625 626 int nvme_ns_chr_uring_cmd_iopoll(struct io_uring_cmd *ioucmd) 627 { 628 struct bio *bio; 629 int ret; 630 struct nvme_ns *ns; 631 struct request_queue *q; 632 633 rcu_read_lock(); 634 bio = READ_ONCE(ioucmd->cookie); 635 ns = container_of(file_inode(ioucmd->file)->i_cdev, 636 struct nvme_ns, cdev); 637 q = ns->queue; 638 if (test_bit(QUEUE_FLAG_POLL, &q->queue_flags) && bio && bio->bi_bdev) > 639 ret = bio_poll(bio, 0, 0); 640 rcu_read_unlock(); 641 return ret; 642 } 643 #ifdef CONFIG_NVME_MULTIPATH 644 static int nvme_ns_head_ctrl_ioctl(struct nvme_ns *ns, unsigned int cmd, 645 void __user *argp, struct nvme_ns_head *head, int srcu_idx) 646 __releases(&head->srcu) 647 { 648 struct nvme_ctrl *ctrl = ns->ctrl; 649 int ret; 650 651 nvme_get_ctrl(ns->ctrl); 652 srcu_read_unlock(&head->srcu, srcu_idx); 653 ret = nvme_ctrl_ioctl(ns->ctrl, cmd, argp); 654 655 nvme_put_ctrl(ctrl); 656 return ret; 657 } 658 -- 0-DAY CI Kernel Test Service https://01.org/lkp
