Hi Steffen, kernel test robot noticed the following build warnings: [auto build test WARNING on kvms390/next] [also build test WARNING on s390/features linus/master v6.12-rc3 next-20241015] [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/Steffen-Eiden/s390-boot-uv-c-Use-a-constant-for-more-data-rc/20241015-193108 base: https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git next patch link: https://lore.kernel.org/r/20241015112859.3069210-6-seiden%40linux.ibm.com patch subject: [PATCH v3 5/6] s390/uvdevice: Add List Secrets Ext IOCTL config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20241016/202410161057.pV9QsHAq-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241016/202410161057.pV9QsHAq-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/202410161057.pV9QsHAq-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/s390/char/uvdevice.c:302: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * The actual list(_ext) IOCTL. vim +302 drivers/s390/char/uvdevice.c 300 301 /** > 302 * The actual list(_ext) IOCTL. 303 * If list_ext is true, the first two bytes of the user buffer set the starting 304 * index of the list-UVC. 305 */ 306 static int list_secrets(struct uvio_ioctl_cb *uv_ioctl, bool list_ext) 307 { 308 void __user *user_buf_arg = (void __user *)uv_ioctl->argument_addr; 309 u16 __user *user_index = (u16 __user *)uv_ioctl->argument_addr; 310 u16 start_idx = 0; 311 u8 *secrets; 312 int ret = 0; 313 314 BUILD_BUG_ON(UVIO_LIST_SECRETS_LEN != PAGE_SIZE); 315 if (uv_ioctl->argument_len != UVIO_LIST_SECRETS_LEN) 316 return -EINVAL; 317 /* The extended call accepts an u16 index as input */ 318 if (list_ext && get_user(start_idx, user_index)) 319 return -EFAULT; 320 secrets = (u8 *)get_zeroed_page(GFP_KERNEL); 321 if (!secrets) 322 return -ENOMEM; 323 uv_list_secrets(secrets, start_idx, &uv_ioctl->uv_rc, &uv_ioctl->uv_rrc); 324 if (copy_to_user(user_buf_arg, secrets, UVIO_LIST_SECRETS_LEN)) 325 ret = -EFAULT; 326 327 free_pages((unsigned long)secrets, 0); 328 return ret; 329 } 330 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
