tree: https://github.com/esmil/linux visionfive head: e46c3a7e373e6faa03399f1a41c29cf7546c37cb commit: 22c69dadd3685e2d35fb43f4da3bb7fe43f2548c [72/80] nvdla: add NVDLA driver config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220119/202201191052.0lVZjaZf-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/esmil/linux/commit/22c69dadd3685e2d35fb43f4da3bb7fe43f... git remote add esmil https://github.com/esmil/linux git fetch --no-tags esmil visionfive git checkout 22c69dadd3685e2d35fb43f4da3bb7fe43f2548c # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/nvdla/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/nvdla/nvdla_gem.c: In function 'nvdla_fill_task_desc': 74 | (void __user *)local_task->address_list, | ^ vim +74 drivers/nvdla/nvdla_gem.c 58 59 static int32_t nvdla_fill_task_desc(struct nvdla_ioctl_submit_task *local_task, 60 struct nvdla_task *task) 61 { 62 struct nvdla_mem_handle *handles; 63 64 /* update task desc fields */ 65 task->num_addresses = local_task->num_addresses; 66 67 handles = kzalloc(local_task->num_addresses * 68 sizeof(struct nvdla_mem_handle), GFP_KERNEL); 69 if (handles == NULL) 70 return -EFAULT; 71 72 /* get user addresses list */ 73 if (copy_from_user(handles, 75 (task->num_addresses * 76 sizeof(struct nvdla_mem_handle)))) { 77 pr_err("failed to copy address list from user ptr\n"); 78 kfree(handles); 79 return -EFAULT; 80 } 81 82 task->address_list = handles; 83 return 0; 84 } 85 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org