tree: https://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git droid4-pending-v5.7 head: c79f709cdba38b9a054d444f4eabc0e1126f06cc commit: c5fb8fb9beac4d489c2f54f6122b6ae11d1e5611 [4/27] Input: omap4-keypad - check state again for lost key-up interrupts config: alpha-randconfig-r033-20200522 (attached as .config) compiler: alpha-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout c5fb8fb9beac4d489c2f54f6122b6ae11d1e5611 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): drivers/input/keyboard/omap4-keypad.c: In function 'omap4_keypad_scan_keys': drivers/input/keyboard/omap4-keypad.c:162:6: warning: variable 'keys_up' set but not used [-Wunused-but-set-variable] 162 | int keys_up, keys_down; | ^~~~~~~ drivers/input/keyboard/omap4-keypad.c: In function 'omap4_keypad_work': 215 | bool events; | ^~~~~~ vim +/events +215 drivers/input/keyboard/omap4-keypad.c 206 207 /* 208 * Errata ID i689 "1.32 Keyboard Key Up Event Can Be Missed". 209 * Interrupt may not happen for key-up events. 210 */ 211 static void omap4_keypad_work(struct work_struct *work) 212 { 213 struct omap4_keypad *keypad_data = 214 container_of(work, struct omap4_keypad, key_work.work); 216 u32 active; 217 218 active = kbd_readl(keypad_data, OMAP4_KBD_STATEMACHINE); 219 if (active) 220 return; 221 222 dev_dbg(keypad_data->input->dev.parent, "idle with events\n"); 223 events = omap4_keypad_scan_keys(keypad_data, true); 224 } 225 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org