Hi Mitul, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/Mitul-Golani/drm-i915-Add-has_audio-to-separate-audio-parameter-in-crtc_state/20230817-205556 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip patch link: https://lore.kernel.org/r/20230817125007.2681331-4-mitulkumar.ajitkumar.golani%40intel.com patch subject: [PATCH 3/3] drm/i915/display: Add wrapper to Compute SAD config: x86_64-buildonly-randconfig-r001-20230817 (https://download.01.org/0day-ci/archive/20230817/202308172319.rTgU3hnc-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce: (https://download.01.org/0day-ci/archive/20230817/202308172319.rTgU3hnc-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202308172319.rTgU3hnc-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/i915/display/intel_audio.c:822:39: warning: variable 'channel_count' is uninitialized when used here [-Wuninitialized] audio_req_bandwidth = calc_audio_bw(channel_count, ^~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_audio.c:812:19: note: initialize the variable 'channel_count' to silence this warning int channel_count; ^ = 0 1 warning generated. vim +/channel_count +822 drivers/gpu/drm/i915/display/intel_audio.c 808 809 static void calibrate_audio_config_params(struct intel_crtc_state *pipe_config, int channel) 810 { 811 struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode; 812 int channel_count; 813 int index, rate[] = { 192000, 176000, 96000, 88000, 48000, 44100, 32000 }; 814 int audio_req_bandwidth, available_blank_bandwidth, vblank, hblank; 815 816 hblank = adjusted_mode->htotal - adjusted_mode->hdisplay; 817 vblank = adjusted_mode->vtotal - adjusted_mode->vdisplay; 818 available_blank_bandwidth = hblank * vblank * 819 drm_mode_vrefresh(adjusted_mode) * pipe_config->pipe_bpp; 820 821 for (index = 0; index < ARRAY_SIZE(rate); index++) { > 822 audio_req_bandwidth = calc_audio_bw(channel_count, 823 rate[index]); 824 if (audio_req_bandwidth < available_blank_bandwidth) { 825 pipe_config->audio.max_rate = rate[index]; 826 pipe_config->audio.max_channel_count = channel_count; 827 return; 828 } 829 } 830 831 pipe_config->audio.max_rate = 0; 832 pipe_config->audio.max_channel_count = 0; 833 } 834 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
