Hi Ville, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [cannot apply to v5.4-rc1 next-20191001] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Ville-Syrjala/drm-i915-Limit-MST-modes-based-on-plane-size-too/20191002-010404 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: x86_64-defconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-13) 7.4.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/gpu/drm/i915/display/intel_dp_mst.c: In function 'intel_dp_mst_mode_valid': >> drivers/gpu/drm/i915/display/intel_dp_mst.c:449:9: error: implicit declaration of function 'intel_mode_valid_max_plane_size'; did you mean 'drm_mode_validate_size'? [-Werror=implicit-function-declaration] return intel_mode_valid_max_plane_size(dev_priv, mode); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drm_mode_validate_size cc1: some warnings being treated as errors vim +449 drivers/gpu/drm/i915/display/intel_dp_mst.c 416 417 static enum drm_mode_status 418 intel_dp_mst_mode_valid(struct drm_connector *connector, 419 struct drm_display_mode *mode) 420 { 421 struct drm_i915_private *dev_priv = to_i915(connector->dev); 422 struct intel_connector *intel_connector = to_intel_connector(connector); 423 struct intel_dp *intel_dp = intel_connector->mst_port; 424 int max_dotclk = to_i915(connector->dev)->max_dotclk_freq; 425 int max_rate, mode_rate, max_lanes, max_link_clock; 426 427 if (drm_connector_is_unregistered(connector)) 428 return MODE_ERROR; 429 430 if (mode->flags & DRM_MODE_FLAG_DBLSCAN) 431 return MODE_NO_DBLESCAN; 432 433 max_link_clock = intel_dp_max_link_rate(intel_dp); 434 max_lanes = intel_dp_max_lane_count(intel_dp); 435 436 max_rate = intel_dp_max_data_rate(max_link_clock, max_lanes); 437 mode_rate = intel_dp_link_required(mode->clock, 18); 438 439 /* TODO - validate mode against available PBN for link */ 440 if (mode->clock < 10000) 441 return MODE_CLOCK_LOW; 442 443 if (mode->flags & DRM_MODE_FLAG_DBLCLK) 444 return MODE_H_ILLEGAL; 445 446 if (mode_rate > max_rate || mode->clock > max_dotclk) 447 return MODE_CLOCK_HIGH; 448 > 449 return intel_mode_valid_max_plane_size(dev_priv, mode); 450 } 451 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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