Hi Dmitry, I love your patch! Yet something to improve: [auto build test ERROR on drm-misc/drm-misc-next] [also build test ERROR on linus/master v5.19-rc5 next-20220706] [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/Dmitry-Baryshkov/drm-msm-dsi-switch-to-DRM_PANEL_BRIDGE/20220707-040414 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next config: arc-randconfig-r043-20220706 (https://download.01.org/0day-ci/archive/20220707/202207070852.WWBrOFY1-lkp@xxxxxxxxx/config) compiler: arceb-elf-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/5eeb41ba36c536b30a6494df55ed441f005a6b11 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Dmitry-Baryshkov/drm-msm-dsi-switch-to-DRM_PANEL_BRIDGE/20220707-040414 git checkout 5eeb41ba36c536b30a6494df55ed441f005a6b11 # 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=arc 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 error/warnings (new ones prefixed by >>): drivers/gpu/drm/msm/dsi/dsi_host.c: In function 'msm_dsi_host_modeset_init': >> drivers/gpu/drm/msm/dsi/dsi_host.c:2159:17: error: implicit declaration of function 'msm_dsi_host_get_panel'; did you mean 'msm_dsi_host_get_bridge'? [-Werror=implicit-function-declaration] 2159 | panel = msm_dsi_host_get_panel(&msm_host->base); | ^~~~~~~~~~~~~~~~~~~~~~ | msm_dsi_host_get_bridge >> drivers/gpu/drm/msm/dsi/dsi_host.c:2159:15: warning: assignment to 'struct drm_panel *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 2159 | panel = msm_dsi_host_get_panel(&msm_host->base); | ^ cc1: some warnings being treated as errors vim +2159 drivers/gpu/drm/msm/dsi/dsi_host.c a689554ba6ed81c Hai Li 2015-03-31 2149 a689554ba6ed81c Hai Li 2015-03-31 2150 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host, a689554ba6ed81c Hai Li 2015-03-31 2151 struct drm_device *dev) a689554ba6ed81c Hai Li 2015-03-31 2152 { a689554ba6ed81c Hai Li 2015-03-31 2153 struct msm_dsi_host *msm_host = to_msm_dsi_host(host); 8f7ca5409063ade Sibi Sankar 2018-05-29 2154 const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd; 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2155 struct drm_panel *panel; a689554ba6ed81c Hai Li 2015-03-31 2156 int ret; a689554ba6ed81c Hai Li 2015-03-31 2157 a689554ba6ed81c Hai Li 2015-03-31 2158 msm_host->dev = dev; 0f40ba48de3b8a4 Vinod Koul 2022-04-06 @2159 panel = msm_dsi_host_get_panel(&msm_host->base); 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2160 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2161 if (!IS_ERR(panel) && panel->dsc) { 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2162 struct msm_display_dsc_config *dsc = msm_host->dsc; 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2163 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2164 if (!dsc) { 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2165 dsc = devm_kzalloc(&msm_host->pdev->dev, sizeof(*dsc), GFP_KERNEL); 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2166 if (!dsc) 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2167 return -ENOMEM; 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2168 dsc->drm = panel->dsc; 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2169 msm_host->dsc = dsc; 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2170 } 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2171 } 0f40ba48de3b8a4 Vinod Koul 2022-04-06 2172 8f7ca5409063ade Sibi Sankar 2018-05-29 2173 ret = cfg_hnd->ops->tx_buf_alloc(msm_host, SZ_4K); a689554ba6ed81c Hai Li 2015-03-31 2174 if (ret) { a689554ba6ed81c Hai Li 2015-03-31 2175 pr_err("%s: alloc tx gem obj failed, %d\n", __func__, ret); a689554ba6ed81c Hai Li 2015-03-31 2176 return ret; a689554ba6ed81c Hai Li 2015-03-31 2177 } a689554ba6ed81c Hai Li 2015-03-31 2178 a689554ba6ed81c Hai Li 2015-03-31 2179 return 0; a689554ba6ed81c Hai Li 2015-03-31 2180 } a689554ba6ed81c Hai Li 2015-03-31 2181 -- 0-DAY CI Kernel Test Service https://01.org/lkp