Hi Ankit, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip next-20240902] [cannot apply to drm-intel/for-linux-next-fixes linus/master v6.11-rc6] [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/Ankit-Nautiyal/drm-i915-dp-Avoid-vrr-compute-config-for-HDMI-sink/20240902-205135 base: git://anongit.freedesktop.org/drm-intel for-linux-next patch link: https://lore.kernel.org/r/20240902080635.2946858-5-ankit.k.nautiyal%40intel.com patch subject: [PATCH 04/13] drm/i915/display: Enable MSA Ignore Timing PAR only when in not fixed_rr mode config: x86_64-rhel-8.3-rust (https://download.01.org/0day-ci/archive/20240903/202409031027.GftRdwjU-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240903/202409031027.GftRdwjU-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/202409031027.GftRdwjU-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/i915/display/intel_dp_link_training.c:724:6: warning: variable 'enable_msa_timing_par_ignore' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] 724 | if (crtc_state->vrr.enable && !crtc_state->vrr.fixed_rr) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_dp_link_training.c:728:30: note: uninitialized use occurs here 728 | crtc_state->port_clock, enable_msa_timing_par_ignore); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_dp_link_training.c:724:2: note: remove the 'if' if its condition is always true 724 | if (crtc_state->vrr.enable && !crtc_state->vrr.fixed_rr) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 725 | enable_msa_timing_par_ignore = true; >> drivers/gpu/drm/i915/display/intel_dp_link_training.c:724:6: warning: variable 'enable_msa_timing_par_ignore' is used uninitialized whenever '&&' condition is false [-Wsometimes-uninitialized] 724 | if (crtc_state->vrr.enable && !crtc_state->vrr.fixed_rr) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_dp_link_training.c:728:30: note: uninitialized use occurs here 728 | crtc_state->port_clock, enable_msa_timing_par_ignore); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_dp_link_training.c:724:6: note: remove the '&&' if its condition is always true 724 | if (crtc_state->vrr.enable && !crtc_state->vrr.fixed_rr) | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_dp_link_training.c:721:35: note: initialize the variable 'enable_msa_timing_par_ignore' to silence this warning 721 | bool enable_msa_timing_par_ignore; | ^ | = 0 2 warnings generated. vim +724 drivers/gpu/drm/i915/display/intel_dp_link_training.c 717 718 static void intel_dp_update_downspread_ctrl(struct intel_dp *intel_dp, 719 const struct intel_crtc_state *crtc_state) 720 { 721 bool enable_msa_timing_par_ignore; 722 723 /* Enable MSA TIMING PAR IGNORE only in non fixed_rr mode */ > 724 if (crtc_state->vrr.enable && !crtc_state->vrr.fixed_rr) 725 enable_msa_timing_par_ignore = true; 726 727 intel_dp_link_training_set_mode(intel_dp, 728 crtc_state->port_clock, enable_msa_timing_par_ignore); 729 } 730 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
