Hi Daniel, I love your patch! Perhaps something to improve: [auto build test WARNING on media-tree/master] [also build test WARNING on v5.18-rc5 next-20220505] [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] url: https://github.com/intel-lab-lkp/linux/commits/Daniel-Scally/Support-OVTI7251-on-Microsoft-Surface-line/20220505-063608 base: git://linuxtv.org/media_tree.git master config: x86_64-randconfig-a014 (https://download.01.org/0day-ci/archive/20220506/202205060133.HrXVpuXG-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5e004fb787698440a387750db7f8028e7cb14cfc) 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 # https://github.com/intel-lab-lkp/linux/commit/132a5a799bbe214b679bc8e242193c5c1ff1d967 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Daniel-Scally/Support-OVTI7251-on-Microsoft-Surface-line/20220505-063608 git checkout 132a5a799bbe214b679bc8e242193c5c1ff1d967 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/crypto/ drivers/media/i2c/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/media/i2c/ov7251.c:1218:18: warning: variable 'vblank_def' set but not used [-Wunused-but-set-variable] int vblank_max, vblank_def; ^ drivers/media/i2c/ov7251.c:193:37: warning: unused variable 'ov7251_pll1_cfg_24_mhz_319_2_mhz' [-Wunused-const-variable] static const struct ov7251_pll1_cfg ov7251_pll1_cfg_24_mhz_319_2_mhz = { ^ 2 warnings generated. vim +/vblank_def +1218 drivers/media/i2c/ov7251.c 1211 1212 static int ov7251_set_format(struct v4l2_subdev *sd, 1213 struct v4l2_subdev_state *sd_state, 1214 struct v4l2_subdev_format *format) 1215 { 1216 struct ov7251 *ov7251 = to_ov7251(sd); 1217 struct v4l2_mbus_framefmt *__format; > 1218 int vblank_max, vblank_def; 1219 struct v4l2_rect *__crop; 1220 const struct ov7251_mode_info *new_mode; 1221 int ret = 0; 1222 1223 mutex_lock(&ov7251->lock); 1224 1225 __crop = __ov7251_get_pad_crop(ov7251, sd_state, format->pad, 1226 format->which); 1227 1228 new_mode = v4l2_find_nearest_size(ov7251_mode_info_data, 1229 ARRAY_SIZE(ov7251_mode_info_data), 1230 width, height, 1231 format->format.width, format->format.height); 1232 1233 __crop->width = new_mode->width; 1234 __crop->height = new_mode->height; 1235 1236 if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) { 1237 ret = __v4l2_ctrl_modify_range(ov7251->exposure, 1238 1, new_mode->exposure_max, 1239 1, new_mode->exposure_def); 1240 if (ret < 0) 1241 goto exit; 1242 1243 ret = __v4l2_ctrl_s_ctrl(ov7251->exposure, 1244 new_mode->exposure_def); 1245 if (ret < 0) 1246 goto exit; 1247 1248 ret = __v4l2_ctrl_s_ctrl(ov7251->gain, 16); 1249 if (ret < 0) 1250 goto exit; 1251 1252 vblank_max = OV7251_TIMING_MAX_VTS - new_mode->height; 1253 vblank_def = new_mode->vts - new_mode->height; 1254 ret = __v4l2_ctrl_modify_range(ov7251->vblank, 1255 OV7251_TIMING_MIN_VTS, 1256 vblank_max, 1, vblank_max); 1257 if (ret < 0) 1258 goto exit; 1259 1260 ov7251->current_mode = new_mode; 1261 } 1262 1263 __format = __ov7251_get_pad_format(ov7251, sd_state, format->pad, 1264 format->which); 1265 __format->width = __crop->width; 1266 __format->height = __crop->height; 1267 __format->code = MEDIA_BUS_FMT_Y10_1X10; 1268 __format->field = V4L2_FIELD_NONE; 1269 __format->colorspace = V4L2_COLORSPACE_SRGB; 1270 __format->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(__format->colorspace); 1271 __format->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true, 1272 __format->colorspace, __format->ycbcr_enc); 1273 __format->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(__format->colorspace); 1274 1275 format->format = *__format; 1276 1277 exit: 1278 mutex_unlock(&ov7251->lock); 1279 1280 return ret; 1281 } 1282 -- 0-DAY CI Kernel Test Service https://01.org/lkp
