tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.4 head: 22b71b41620dac13c69267d2b7898ebfb14c954e commit: 9836a252284b997aacd6b86766514a0bb84b4f43 [217/1297] drivers: media: Customized adv7511 for Xylon LogiCVC (deprecated) config: h8300-randconfig-r004-20200512 (attached as .config) compiler: h8300-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 9836a252284b997aacd6b86766514a0bb84b4f43 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=h8300 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot All warnings (new ones prefixed by >>): drivers/media/i2c/adv7511-v4l2.c: In function 'adv7511_set_rgb_quantization_mode': >> drivers/media/i2c/adv7511-v4l2.c:427:9: warning: 'return' with a value, in function returning void [-Wreturn-type] 427 | return 0; | ^ drivers/media/i2c/adv7511-v4l2.c:422:13: note: declared here 422 | static void adv7511_set_rgb_quantization_mode(struct v4l2_subdev *sd, struct v4l2_ctrl *ctrl) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ # https://github.com/Xilinx/linux-xlnx/commit/9836a252284b997aacd6b86766514a0bb84b4f43 git remote add xlnx https://github.com/Xilinx/linux-xlnx git remote update xlnx git checkout 9836a252284b997aacd6b86766514a0bb84b4f43 vim +/return +427 drivers/media/i2c/adv7511-v4l2.c 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 421 0a25a012519463 drivers/media/i2c/adv7511.c Hans Verkuil 2016-06-28 422 static void adv7511_set_rgb_quantization_mode(struct v4l2_subdev *sd, struct v4l2_ctrl *ctrl) 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 423 { 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 424 struct adv7511_state *state = get_adv7511_state(sd); 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 425 9836a252284b99 drivers/media/i2c/adv7511-v4l2.c Radhey Shyam Pandey 2014-01-15 426 #ifdef XYLON_LOGICVC_INTG 9836a252284b99 drivers/media/i2c/adv7511-v4l2.c Radhey Shyam Pandey 2014-01-15 @427 return 0; 9836a252284b99 drivers/media/i2c/adv7511-v4l2.c Radhey Shyam Pandey 2014-01-15 428 #endif 9836a252284b99 drivers/media/i2c/adv7511-v4l2.c Radhey Shyam Pandey 2014-01-15 429 0a25a012519463 drivers/media/i2c/adv7511.c Hans Verkuil 2016-06-28 430 /* Only makes sense for RGB formats */ 0a25a012519463 drivers/media/i2c/adv7511.c Hans Verkuil 2016-06-28 431 if (state->fmt_code != MEDIA_BUS_FMT_RGB888_1X24) { 0a25a012519463 drivers/media/i2c/adv7511.c Hans Verkuil 2016-06-28 432 /* so just keep quantization */ 0a25a012519463 drivers/media/i2c/adv7511.c Hans Verkuil 2016-06-28 433 adv7511_csc_rgb_full2limit(sd, false); 0a25a012519463 drivers/media/i2c/adv7511.c Hans Verkuil 2016-06-28 434 return; 0a25a012519463 drivers/media/i2c/adv7511.c Hans Verkuil 2016-06-28 435 } 0a25a012519463 drivers/media/i2c/adv7511.c Hans Verkuil 2016-06-28 436 0a25a012519463 drivers/media/i2c/adv7511.c Hans Verkuil 2016-06-28 437 switch (ctrl->val) { 0a25a012519463 drivers/media/i2c/adv7511.c Hans Verkuil 2016-06-28 438 case V4L2_DV_RGB_RANGE_AUTO: 0a25a012519463 drivers/media/i2c/adv7511.c Hans Verkuil 2016-06-28 439 /* automatic */ 680fee04a227d6 drivers/media/i2c/adv7511.c Hans Verkuil 2015-03-20 440 if (state->dv_timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO) { 680fee04a227d6 drivers/media/i2c/adv7511.c Hans Verkuil 2015-03-20 441 /* CE format, RGB limited range (16-235) */ 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 442 adv7511_csc_rgb_full2limit(sd, true); 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 443 } else { 680fee04a227d6 drivers/media/i2c/adv7511.c Hans Verkuil 2015-03-20 444 /* not CE format, RGB full range (0-255) */ 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 445 adv7511_csc_rgb_full2limit(sd, false); 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 446 } 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 447 break; 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 448 case V4L2_DV_RGB_RANGE_LIMITED: 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 449 /* RGB limited range (16-235) */ 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 450 adv7511_csc_rgb_full2limit(sd, true); 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 451 break; 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 452 case V4L2_DV_RGB_RANGE_FULL: 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 453 /* RGB full range (0-255) */ 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 454 adv7511_csc_rgb_full2limit(sd, false); 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 455 break; 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 456 } 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 457 } 5a544cce2177fe drivers/media/i2c/adv7511.c Hans Verkuil 2013-08-23 458 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org