Hi Thomas, kernel test robot noticed the following build errors: [auto build test ERROR on netfilter-nf/main] [also build test ERROR on akpm-mm/mm-everything linus/master v6.7-rc4] [cannot apply to nf-next/master next-20231205] [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/Thomas-Wei-schuh/sysctl-delete-unused-define-SYSCTL_PERM_EMPTY_DIR/20231204-165306 base: git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git main patch link: https://lore.kernel.org/r/20231204-const-sysctl-v2-12-7a5060b11447%40weissschuh.net patch subject: [PATCH v2 12/18] sysctl: treewide: constify the ctl_table argument of handlers config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20231205/202312051727.wW4EJo6e-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231205/202312051727.wW4EJo6e-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/202312051727.wW4EJo6e-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): arch/s390/appldata/appldata_base.c: In function 'appldata_register_ops': >> arch/s390/appldata/appldata_base.c:363:40: error: assignment to 'int (*)(const struct ctl_table *, int, void *, size_t *, loff_t *)' {aka 'int (*)(const struct ctl_table *, int, void *, long unsigned int *, long long int *)'} from incompatible pointer type 'int (*)(struct ctl_table *, int, void *, size_t *, loff_t *)' {aka 'int (*)(struct ctl_table *, int, void *, long unsigned int *, long long int *)'} [-Werror=incompatible-pointer-types] 363 | ops->ctl_table[0].proc_handler = appldata_generic_handler; | ^ cc1: some warnings being treated as errors vim +363 arch/s390/appldata/appldata_base.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 340 ^1da177e4c3f41 Linus Torvalds 2005-04-16 341 ^1da177e4c3f41 Linus Torvalds 2005-04-16 342 /************************* module-ops management *****************************/ ^1da177e4c3f41 Linus Torvalds 2005-04-16 343 /* ^1da177e4c3f41 Linus Torvalds 2005-04-16 344 * appldata_register_ops() ^1da177e4c3f41 Linus Torvalds 2005-04-16 345 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 346 * update ops list, register /proc/sys entries ^1da177e4c3f41 Linus Torvalds 2005-04-16 347 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 348 int appldata_register_ops(struct appldata_ops *ops) ^1da177e4c3f41 Linus Torvalds 2005-04-16 349 { 13f8b7c5e6fa13 Roel Kluin 2008-10-28 350 if (ops->size > APPLDATA_MAX_REC_SIZE) 37e3a6ac5a3046 Heiko Carstens 2007-11-20 351 return -EINVAL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 352 fdd9da76e2dec0 Joel Granados 2023-10-02 353 ops->ctl_table = kcalloc(1, sizeof(struct ctl_table), GFP_KERNEL); 37e3a6ac5a3046 Heiko Carstens 2007-11-20 354 if (!ops->ctl_table) ^1da177e4c3f41 Linus Torvalds 2005-04-16 355 return -ENOMEM; ^1da177e4c3f41 Linus Torvalds 2005-04-16 356 b1ad171efa089a Gerald Schaefer 2009-04-23 357 mutex_lock(&appldata_ops_mutex); ^1da177e4c3f41 Linus Torvalds 2005-04-16 358 list_add(&ops->list, &appldata_ops_list); b1ad171efa089a Gerald Schaefer 2009-04-23 359 mutex_unlock(&appldata_ops_mutex); ^1da177e4c3f41 Linus Torvalds 2005-04-16 360 7db12246306ea6 Luis Chamberlain 2023-03-10 361 ops->ctl_table[0].procname = ops->name; 7db12246306ea6 Luis Chamberlain 2023-03-10 362 ops->ctl_table[0].mode = S_IRUGO | S_IWUSR; 7db12246306ea6 Luis Chamberlain 2023-03-10 @363 ops->ctl_table[0].proc_handler = appldata_generic_handler; 7db12246306ea6 Luis Chamberlain 2023-03-10 364 ops->ctl_table[0].data = ops; ^1da177e4c3f41 Linus Torvalds 2005-04-16 365 9edbfe92a0a135 Joel Granados 2023-08-09 366 ops->sysctl_header = register_sysctl_sz(appldata_proc_name, ops->ctl_table, 1); 37e3a6ac5a3046 Heiko Carstens 2007-11-20 367 if (!ops->sysctl_header) 37e3a6ac5a3046 Heiko Carstens 2007-11-20 368 goto out; ^1da177e4c3f41 Linus Torvalds 2005-04-16 369 return 0; 37e3a6ac5a3046 Heiko Carstens 2007-11-20 370 out: b1ad171efa089a Gerald Schaefer 2009-04-23 371 mutex_lock(&appldata_ops_mutex); 37e3a6ac5a3046 Heiko Carstens 2007-11-20 372 list_del(&ops->list); b1ad171efa089a Gerald Schaefer 2009-04-23 373 mutex_unlock(&appldata_ops_mutex); 37e3a6ac5a3046 Heiko Carstens 2007-11-20 374 kfree(ops->ctl_table); 37e3a6ac5a3046 Heiko Carstens 2007-11-20 375 return -ENOMEM; ^1da177e4c3f41 Linus Torvalds 2005-04-16 376 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 377 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki