Hi Alain, kernel test robot noticed the following build warnings: [auto build test WARNING on media-tree/master] [also build test WARNING on robh/for-next linus/master v6.6-rc3 next-20230926] [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/Alain-Volmat/dt-bindings-media-i2c-add-galaxycore-gc2145-dt-bindings/20230926-173518 base: git://linuxtv.org/media_tree.git master patch link: https://lore.kernel.org/r/20230926092825.819229-3-alain.volmat%40foss.st.com patch subject: [PATCH 2/2] media: i2c: gc2145: Galaxy Core GC2145 sensor support config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20230927/202309270018.GBMyNvxU-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230927/202309270018.GBMyNvxU-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/202309270018.GBMyNvxU-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/media/i2c/gc2145.c:1140:12: warning: 'gc2145_resume' defined but not used [-Wunused-function] 1140 | static int gc2145_resume(struct device *dev) | ^~~~~~~~~~~~~ >> drivers/media/i2c/gc2145.c:1129:12: warning: 'gc2145_suspend' defined but not used [-Wunused-function] 1129 | static int gc2145_suspend(struct device *dev) | ^~~~~~~~~~~~~~ vim +/gc2145_resume +1140 drivers/media/i2c/gc2145.c 1128 > 1129 static int gc2145_suspend(struct device *dev) 1130 { 1131 struct v4l2_subdev *sd = dev_get_drvdata(dev); 1132 struct gc2145 *gc2145 = to_gc2145(sd); 1133 1134 if (gc2145->streaming) 1135 gc2145_stop_streaming(gc2145); 1136 1137 return 0; 1138 } 1139 > 1140 static int gc2145_resume(struct device *dev) 1141 { 1142 struct v4l2_subdev *sd = dev_get_drvdata(dev); 1143 struct gc2145 *gc2145 = to_gc2145(sd); 1144 struct v4l2_subdev_state *state; 1145 int ret; 1146 1147 if (gc2145->streaming) { 1148 state = v4l2_subdev_lock_and_get_active_state(sd); 1149 ret = gc2145_start_streaming(gc2145, state); 1150 v4l2_subdev_unlock_state(state); 1151 if (ret) 1152 goto error; 1153 } 1154 1155 return 0; 1156 1157 error: 1158 gc2145_stop_streaming(gc2145); 1159 gc2145->streaming = false; 1160 1161 return ret; 1162 } 1163 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki