Hi Adrien, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.11 next-20210226] [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/0day-ci/linux/commits/Adrien-Grassein/Add-support-of-Lontium-lt8912-MIPI-to-HDMI-bridge/20210228-001438 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 3fb6d0e00efc958d01c2f109c8453033a2d96796 config: arm64-randconfig-r025-20210228 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 83bc7815c4235786111aa2abf7193292e4a602f5) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/2d98eba25528e00389795ddc110f56ac6adfde4c git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Adrien-Grassein/Add-support-of-Lontium-lt8912-MIPI-to-HDMI-bridge/20210228-001438 git checkout 2d98eba25528e00389795ddc110f56ac6adfde4c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 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/gpu/drm/bridge/lontium-lt8912b.c:461:10: warning: variable 'ret' is uninitialized when used here [-Wuninitialized] return ret; ^~~ drivers/gpu/drm/bridge/lontium-lt8912b.c:452:9: note: initialize the variable 'ret' to silence this warning int ret, num = 0; ^ = 0 1 warning generated. vim +/ret +461 drivers/gpu/drm/bridge/lontium-lt8912b.c 448 449 static int lt8912_connector_get_modes(struct drm_connector *connector) 450 { 451 struct edid *edid; 452 int ret, num = 0; 453 struct lt8912 *lt = connector_to_lt8912(connector); 454 u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24; 455 456 edid = drm_bridge_get_edid(lt->hdmi_port, connector); 457 if (edid) { 458 drm_connector_update_edid_property(connector, edid); 459 num = drm_add_edid_modes(connector, edid); 460 } else > 461 return ret; 462 463 ret = drm_display_info_set_bus_formats(&connector->display_info, 464 &bus_format, 1); 465 if (ret) 466 num = ret; 467 468 kfree(edid); 469 return num; 470 } 471 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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