Hi Dmitry, kernel test robot noticed the following build warnings: [auto build test WARNING on 929beafbe7acce3267c06115e13e03ff6e50548a] url: https://github.com/intel-lab-lkp/linux/commits/Dmitry-Baryshkov/drm-display-hdmi-add-generic-mode_valid-helper/20241109-203557 base: 929beafbe7acce3267c06115e13e03ff6e50548a patch link: https://lore.kernel.org/r/20241109-hdmi-mode-valid-v3-3-5348c2368076%40linaro.org patch subject: [PATCH v3 3/7] drm/vc4: use drm_hdmi_connector_mode_valid() config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20241110/202411100456.0JcsAx2b-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241110/202411100456.0JcsAx2b-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/202411100456.0JcsAx2b-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/gpu/drm/vc4/vc4_hdmi.c: In function 'vc4_hdmi_encoder_mode_valid': >> drivers/gpu/drm/vc4/vc4_hdmi.c:1762:68: warning: passing argument 2 of 'drm_hdmi_connector_mode_valid' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1762 | return drm_hdmi_connector_mode_valid(&vc4_hdmi->connector, mode); | ^~~~ In file included from drivers/gpu/drm/vc4/vc4_hdmi.c:35: include/drm/display/drm_hdmi_state_helper.h:25:56: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' 25 | struct drm_display_mode *mode); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ vim +1762 drivers/gpu/drm/vc4/vc4_hdmi.c 1749 1750 static enum drm_mode_status 1751 vc4_hdmi_encoder_mode_valid(struct drm_encoder *encoder, 1752 const struct drm_display_mode *mode) 1753 { 1754 struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); 1755 1756 if (vc4_hdmi->variant->unsupported_odd_h_timings && 1757 !(mode->flags & DRM_MODE_FLAG_DBLCLK) && 1758 ((mode->hdisplay % 2) || (mode->hsync_start % 2) || 1759 (mode->hsync_end % 2) || (mode->htotal % 2))) 1760 return MODE_H_ILLEGAL; 1761 > 1762 return drm_hdmi_connector_mode_valid(&vc4_hdmi->connector, mode); 1763 } 1764 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
