Hi Christian, kernel test robot noticed the following build warnings: [auto build test WARNING on robh/for-next] [also build test WARNING on linus/master v6.10-rc3 next-20240613] [cannot apply to lee-leds/for-leds-next] [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/Christian-Marangi/dt-bindings-leds-lp55xx-limit-pwr-sel-property-to-ti-lp8501/20240616-071915 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20240615231152.28201-4-ansuelsmth%40gmail.com patch subject: [PATCH v5 03/20] leds: leds-lp55xx: generalize stop_all_engine OP config: i386-buildonly-randconfig-004-20240616 (https://download.01.org/0day-ci/archive/20240616/202406161215.GdZijN9e-lkp@xxxxxxxxx/config) compiler: gcc-8 (Ubuntu 8.4.0-3ubuntu2) 8.4.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240616/202406161215.GdZijN9e-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/202406161215.GdZijN9e-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/leds/leds-lp55xx-common.c: In function 'lp55xx_wait_opmode_done': >> drivers/leds/leds-lp55xx-common.c:53:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] int ret; ^~~ vim +/ret +53 drivers/leds/leds-lp55xx-common.c 49 50 static void lp55xx_wait_opmode_done(struct lp55xx_chip *chip) 51 { 52 struct lp55xx_device_config *cfg = chip->cfg; > 53 int ret; 54 u8 val; 55 56 /* 57 * Recent chip supports BUSY bit for engine. 58 * Check support by checking if val is not 0. 59 * For legacy device, sleep at least 153 us. 60 */ 61 if (cfg->engine_busy.val) 62 read_poll_timeout(lp55xx_read, ret, !(val & cfg->engine_busy.mask), 63 LP55XX_CMD_SLEEP, LP55XX_CMD_SLEEP * 10, false, 64 chip, cfg->engine_busy.addr, &val); 65 else 66 usleep_range(LP55XX_CMD_SLEEP, LP55XX_CMD_SLEEP * 2); 67 } 68 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
