Hi Nam, kernel test robot noticed the following build warnings:
[auto build test WARNING on trace/for-next] [also build test WARNING on next-20250723] [cannot apply to linus/master v6.16-rc7] [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/Nam-Cao/rv-Remove-unused-field-in-struct-rv_monitor_def/20250723-144825 base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next patch link: https://lore.kernel.org/r/58c63faec76ffb36552fcd1fdcc4b9dd841efd94.1753252872.git.namcao%40linutronix.de patch subject: [PATCH v2 5/5] rv: Remove struct rv_monitor::reacting config: arc-randconfig-002-20250724 (https://download.01.org/0day-ci/archive/20250724/202507241015.qun68uph-...@intel.com/config) compiler: arc-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250724/202507241015.qun68uph-...@intel.com/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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202507241015.qun68uph-...@intel.com/ All warnings (new ones prefixed by >>): kernel/trace/rv/rv_reactors.c: In function 'monitor_reactors_write': >> kernel/trace/rv/rv_reactors.c:211:14: warning: variable 'enable' set but not >> used [-Wunused-but-set-variable] 211 | bool enable; | ^~~~~~ vim +/enable +211 kernel/trace/rv/rv_reactors.c cb85c660fcd4b3a Gabriele Monaco 2025-03-05 201 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 202 static ssize_t 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 203 monitor_reactors_write(struct file *file, const char __user *user_buf, 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 204 size_t count, loff_t *ppos) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 205 { 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 206 char buff[MAX_RV_REACTOR_NAME_SIZE + 2]; 98b2531fbe93031 Nam Cao 2025-07-23 207 struct rv_monitor *mon; aef8790cfb7b07f Nam Cao 2025-07-23 208 struct rv_reactor *reactor; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 209 struct seq_file *seq_f; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 210 int retval = -EINVAL; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 @211 bool enable; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 212 char *ptr; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 213 int len; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 214 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 215 if (count < 1 || count > MAX_RV_REACTOR_NAME_SIZE + 1) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 216 return -EINVAL; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 217 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 218 memset(buff, 0, sizeof(buff)); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 219 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 220 retval = simple_write_to_buffer(buff, sizeof(buff) - 1, ppos, user_buf, count); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 221 if (retval < 0) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 222 return -EFAULT; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 223 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 224 ptr = strim(buff); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 225 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 226 len = strlen(ptr); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 227 if (!len) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 228 return count; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 229 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 230 /* 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 231 * See monitor_reactors_open() 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 232 */ 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 233 seq_f = file->private_data; 98b2531fbe93031 Nam Cao 2025-07-23 234 mon = seq_f->private; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 235 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 236 mutex_lock(&rv_interface_lock); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 237 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 238 retval = -EINVAL; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 239 aef8790cfb7b07f Nam Cao 2025-07-23 240 list_for_each_entry(reactor, &rv_reactors_list, list) { aef8790cfb7b07f Nam Cao 2025-07-23 241 if (strcmp(ptr, reactor->name) != 0) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 242 continue; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 243 aef8790cfb7b07f Nam Cao 2025-07-23 244 if (strcmp(reactor->name, "nop")) 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 245 enable = false; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 246 else 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 247 enable = true; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 248 a96356e99938184 Nam Cao 2025-07-23 249 monitor_swap_reactors(mon, reactor); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 250 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 251 retval = count; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 252 break; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 253 } 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 254 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 255 mutex_unlock(&rv_interface_lock); 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 256 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 257 return retval; 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 258 } 04acadcb4453cf8 Daniel Bristot de Oliveira 2022-07-29 259 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
