Hi Kuogee, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm/drm-next] [also build test WARNING on drm-exynos/exynos-drm-next drm-tip/drm-tip linus/master v5.19-rc2 next-20220616] [cannot apply to drm-intel/for-linux-next tegra-drm/drm/tegra/for-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] url: https://github.com/intel-lab-lkp/linux/commits/Kuogee-Hsieh/force-link-training-for-display-resolution-change/20220617-011110 base: git://anongit.freedesktop.org/drm/drm drm-next config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20220617/202206170505.2U1jLZVk-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 11.3.0 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/b04f0b39a03a9fc3728e9414157f9d5f0b8b2366 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Kuogee-Hsieh/force-link-training-for-display-resolution-change/20220617-011110 git checkout b04f0b39a03a9fc3728e9414157f9d5f0b8b2366 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/gpu/drm/msm/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/msm/dp/dp_ctrl.c:1587:5: warning: no previous prototype for 'dp_ctrl_on_stream_phy_test_report' [-Wmissing-prototypes] 1587 | int dp_ctrl_on_stream_phy_test_report(struct dp_ctrl *dp_ctrl) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/dp_ctrl_on_stream_phy_test_report +1587 drivers/gpu/drm/msm/dp/dp_ctrl.c 1586 > 1587 int dp_ctrl_on_stream_phy_test_report(struct dp_ctrl *dp_ctrl) 1588 { 1589 int ret = 0; 1590 struct dp_ctrl_private *ctrl; 1591 unsigned long pixel_rate; 1592 1593 ctrl = container_of(dp_ctrl, struct dp_ctrl_private, dp_ctrl); 1594 1595 pixel_rate = ctrl->panel->dp_mode.drm_mode.clock; 1596 ret = dp_ctrl_enable_stream_clocks(ctrl, pixel_rate); 1597 if (ret) { 1598 DRM_ERROR("Failed to start pixel clocks. ret=%d\n", ret); 1599 return ret; 1600 } 1601 1602 dp_ctrl_send_phy_test_pattern(ctrl); 1603 1604 return 0; 1605 } 1606 -- 0-DAY CI Kernel Test Service https://01.org/lkp
