Hi Kanchan, 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-rc7 next-20240510] [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/nvme-enable-FDP-support/20240510-214900 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next patch link: https://lore.kernel.org/r/20240510134015.29717-1-joshi.k%40samsung.com patch subject: [PATCH] nvme: enable FDP support config: x86_64-randconfig-121-20240511 (https://download.01.org/0day-ci/archive/20240511/202405111758.Ts2xnoZH-lkp@xxxxxxxxx/config) compiler: gcc-9 (Ubuntu 9.5.0-4ubuntu2) 9.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240511/202405111758.Ts2xnoZH-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/202405111758.Ts2xnoZH-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/nvme/host/core.c:2120:30: sparse: sparse: cast to restricted __le16 drivers/nvme/host/core.c:2126:38: sparse: sparse: cast to restricted __le16 drivers/nvme/host/core.c: note: in included file (through include/linux/wait.h, include/linux/wait_bit.h, include/linux/fs.h, ...): include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true vim +2120 drivers/nvme/host/core.c 2098 2099 static int nvme_fetch_fdp_plids(struct nvme_ns *ns, u32 nsid) 2100 { 2101 struct nvme_command c = {}; 2102 struct nvme_fdp_ruh_status *ruhs; 2103 struct nvme_fdp_ruh_status_desc *ruhsd; 2104 int size, ret, i; 2105 2106 size = sizeof(*ruhs) + NVME_MAX_PLIDS * sizeof(*ruhsd); 2107 ruhs = kzalloc(size, GFP_KERNEL); 2108 if (!ruhs) 2109 return -ENOMEM; 2110 2111 c.imr.opcode = nvme_cmd_io_mgmt_recv; 2112 c.imr.nsid = cpu_to_le32(nsid); 2113 c.imr.mo = 0x1; 2114 c.imr.numd = cpu_to_le32((size >> 2) - 1); 2115 2116 ret = nvme_submit_sync_cmd(ns->queue, &c, ruhs, size); 2117 if (ret) 2118 goto out; 2119 > 2120 ns->head->nr_plids = le16_to_cpu(ruhs->nruhsd); 2121 ns->head->nr_plids = 2122 min_t(u16, ns->head->nr_plids, NVME_MAX_PLIDS); 2123 2124 for (i = 0; i < ns->head->nr_plids; i++) { 2125 ruhsd = &ruhs->ruhsd[i]; 2126 ns->head->plids[i] = le16_to_cpu(ruhsd->pid); 2127 } 2128 out: 2129 kfree(ruhs); 2130 return ret; 2131 } 2132 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
