Hi Sylvain, kernel test robot noticed the following build warnings: [auto build test WARNING on media-tree/master] [also build test WARNING on linus/master v6.9-rc4 next-20240417] [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/Sylvain-Petinot/media-dt-bindings-Add-ST-VD56G3-camera-sensor-binding/20240417-213838 base: git://linuxtv.org/media_tree.git master patch link: https://lore.kernel.org/r/20240417133453.17406-3-sylvain.petinot%40foss.st.com patch subject: [PATCH 2/2] media: i2c: Add driver for ST VD56G3 camera sensor config: m68k-randconfig-r071-20240418 (https://download.01.org/0day-ci/archive/20240418/202404181322.l6Ajlqbf-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240418/202404181322.l6Ajlqbf-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/202404181322.l6Ajlqbf-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/media/i2c/st-vd56g3.c:1164:12: warning: 'vd56g3_runtime_suspend' defined but not used [-Wunused-function] 1164 | static int vd56g3_runtime_suspend(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~ >> drivers/media/i2c/st-vd56g3.c:1142:12: warning: 'vd56g3_runtime_resume' defined but not used [-Wunused-function] 1142 | static int vd56g3_runtime_resume(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~ vim +/vd56g3_runtime_suspend +1164 drivers/media/i2c/st-vd56g3.c 1141 > 1142 static int vd56g3_runtime_resume(struct device *dev) 1143 { 1144 struct v4l2_subdev *sd = dev_get_drvdata(dev); 1145 struct vd56g3 *sensor = to_vd56g3(sd); 1146 struct i2c_client *client = sensor->i2c_client; 1147 int ret; 1148 1149 ret = vd56g3_power_on(sensor); 1150 if (ret) { 1151 dev_err(&client->dev, "Failed to power on %d", ret); 1152 return ret; 1153 } 1154 1155 ret = vd56g3_boot(sensor); 1156 if (ret) { 1157 dev_err(&client->dev, "sensor boot failed %d", ret); 1158 return ret; 1159 } 1160 1161 return ret; 1162 } 1163 > 1164 static int vd56g3_runtime_suspend(struct device *dev) 1165 { 1166 struct v4l2_subdev *sd = dev_get_drvdata(dev); 1167 struct vd56g3 *sensor = to_vd56g3(sd); 1168 1169 return vd56g3_power_off(sensor); 1170 } 1171 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki