Hi Isaac, kernel test robot noticed the following build warnings: [auto build test WARNING on rafael-pm/linux-next] [also build test WARNING on rafael-pm/bleeding-edge linus/master v6.10-rc2 next-20240604] [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/Isaac-J-Manjarres/fs-Improve-eventpoll-logging-to-stop-indicting-timerfd/20240605-013918 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next patch link: https://lore.kernel.org/r/20240604173606.998721-1-isaacmanjarres%40google.com patch subject: [PATCH v4] fs: Improve eventpoll logging to stop indicting timerfd config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20240605/202406050504.UvdlPAQ0-lkp@xxxxxxxxx/config) compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240605/202406050504.UvdlPAQ0-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/202406050504.UvdlPAQ0-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/base/power/wakeup.c: In function 'wakeup_source_register': >> drivers/base/power/wakeup.c:223:9: warning: function 'wakeup_source_register' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 223 | vsnprintf(name, sizeof(name), fmt, args); | ^~~~~~~~~ vim +223 drivers/base/power/wakeup.c 208 209 /** 210 * wakeup_source_register - Create wakeup source and add it to the list. 211 * @dev: Device this wakeup source is associated with (or NULL if virtual). 212 * @fmt: format string for the wakeup source name 213 */ 214 struct wakeup_source *wakeup_source_register(struct device *dev, 215 const char *fmt, ...) 216 { 217 struct wakeup_source *ws; 218 int ret; 219 char name[128]; 220 va_list args; 221 222 va_start(args, fmt); > 223 vsnprintf(name, sizeof(name), fmt, args); 224 va_end(args); 225 226 ws = wakeup_source_create(name); 227 if (ws) { 228 if (!dev || device_is_registered(dev)) { 229 ret = wakeup_source_sysfs_add(dev, ws); 230 if (ret) { 231 wakeup_source_free(ws); 232 return NULL; 233 } 234 } 235 wakeup_source_add(ws); 236 } 237 return ws; 238 } 239 EXPORT_SYMBOL_GPL(wakeup_source_register); 240 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
