Hi Nikita, kernel test robot noticed the following build errors: [auto build test ERROR on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/Nikita-Zhandarovich/video-hdmi-minor-fixes-for-_infoframe_init-functions/20230421-221128 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip patch link: https://lore.kernel.org/r/20230412152910.9486-1-n.zhandarovich%40fintech.ru patch subject: [PATCH] video/hdmi: minor fixes for *_infoframe_init functions config: x86_64-allmodconfig (https://download.01.org/0day-ci/archive/20230423/202304230527.lMhdvedk-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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/63c44f02ae13a5f50eadc26f5b45d4ade624f20c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Nikita-Zhandarovich/video-hdmi-minor-fixes-for-_infoframe_init-functions/20230421-221128 git checkout 63c44f02ae13a5f50eadc26f5b45d4ade624f20c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/xen/ drivers/gpu/drm/i915/ drivers/power/supply/ drivers/vdpa/mlx5/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304230527.lMhdvedk-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/gpu/drm/i915/display/intel_hdmi.c:769:37: error: variable 'ret' is uninitialized when used here [-Werror,-Wuninitialized] if (drm_WARN_ON(encoder->base.dev, ret)) ^~~ include/drm/drm_print.h:630:19: note: expanded from macro 'drm_WARN_ON' drm_WARN((drm), (x), "%s", \ ^ include/drm/drm_print.h:620:7: note: expanded from macro 'drm_WARN' WARN(condition, "%s %s: " format, \ ^~~~~~~~~ include/asm-generic/bug.h:131:25: note: expanded from macro 'WARN' int __ret_warn_on = !!(condition); \ ^~~~~~~~~ drivers/gpu/drm/i915/display/intel_hdmi.c:756:9: note: initialize the variable 'ret' to silence this warning int ret; ^ = 0 1 error generated. vim +/ret +769 drivers/gpu/drm/i915/display/intel_hdmi.c b055c8f3ef9f7b drivers/gpu/drm/i915/intel_hdmi.c Jesse Barnes 2011-07-08 748 fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 749 static bool fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 750 intel_hdmi_compute_spd_infoframe(struct intel_encoder *encoder, fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 751 struct intel_crtc_state *crtc_state, fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 752 struct drm_connector_state *conn_state) c0864cb39c6869 drivers/gpu/drm/i915/intel_hdmi.c Jesse Barnes 2011-08-03 753 { 7d1675dcb5a16c drivers/gpu/drm/i915/display/intel_hdmi.c Taylor, Clinton A 2022-11-29 754 struct drm_i915_private *i915 = to_i915(encoder->base.dev); fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 755 struct hdmi_spd_infoframe *frame = &crtc_state->infoframes.spd.spd; 5adaea799c1c2c drivers/gpu/drm/i915/intel_hdmi.c Damien Lespiau 2013-08-06 756 int ret; 5adaea799c1c2c drivers/gpu/drm/i915/intel_hdmi.c Damien Lespiau 2013-08-06 757 fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 758 if (!crtc_state->has_infoframe) fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 759 return true; c0864cb39c6869 drivers/gpu/drm/i915/intel_hdmi.c Jesse Barnes 2011-08-03 760 fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 761 crtc_state->infoframes.enable |= fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 762 intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_SPD); c0864cb39c6869 drivers/gpu/drm/i915/intel_hdmi.c Jesse Barnes 2011-08-03 763 7d1675dcb5a16c drivers/gpu/drm/i915/display/intel_hdmi.c Taylor, Clinton A 2022-11-29 764 if (IS_DGFX(i915)) 63c44f02ae13a5 drivers/gpu/drm/i915/display/intel_hdmi.c Nikita Zhandarovich 2023-04-12 765 hdmi_spd_infoframe_init(frame, "Intel", "Discrete gfx"); 7d1675dcb5a16c drivers/gpu/drm/i915/display/intel_hdmi.c Taylor, Clinton A 2022-11-29 766 else 63c44f02ae13a5 drivers/gpu/drm/i915/display/intel_hdmi.c Nikita Zhandarovich 2023-04-12 767 hdmi_spd_infoframe_init(frame, "Intel", "Integrated gfx"); 7d1675dcb5a16c drivers/gpu/drm/i915/display/intel_hdmi.c Taylor, Clinton A 2022-11-29 768 3a47ae201e0749 drivers/gpu/drm/i915/display/intel_hdmi.c Pankaj Bharadiya 2020-01-15 @769 if (drm_WARN_ON(encoder->base.dev, ret)) fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 770 return false; fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 771 fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 772 frame->sdi = HDMI_SPD_SDI_PC; fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 773 fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 774 ret = hdmi_spd_infoframe_check(frame); 3a47ae201e0749 drivers/gpu/drm/i915/display/intel_hdmi.c Pankaj Bharadiya 2020-01-15 775 if (drm_WARN_ON(encoder->base.dev, ret)) fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 776 return false; fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 777 fbf08556ed4344 drivers/gpu/drm/i915/intel_hdmi.c Ville Syrjälä 2019-02-25 778 return true; c0864cb39c6869 drivers/gpu/drm/i915/intel_hdmi.c Jesse Barnes 2011-08-03 779 } c0864cb39c6869 drivers/gpu/drm/i915/intel_hdmi.c Jesse Barnes 2011-08-03 780 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
