Hi Mario, kernel test robot noticed the following build warnings:
[auto build test WARNING on rafael-pm/linux-next] [also build test WARNING on drm-intel/for-linux-next-fixes drm-xe/drm-xe-next linus/master v6.8-rc2 next-20240202] [cannot apply to drm-misc/drm-misc-next drm-intel/for-linux-next rafael-pm/acpi-bus rafael-pm/devprop] [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/Mario-Limonciello/ACPI-video-Handle-fetching-EDID-that-is-longer-than-256-bytes/20240202-061301 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next patch link: https://lore.kernel.org/r/20240201221119.42564-4-mario.limonciello%40amd.com patch subject: [PATCH v3 3/5] drm/amd: Fetch the EDID from _DDC if available for eDP config: i386-randconfig-004-20240203 (https://download.01.org/0day-ci/archive/20240203/202402032030.ibef5cme-...@intel.com/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240203/202402032030.ibef5cme-...@intel.com/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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202402032030.ibef5cme-...@intel.com/ All warnings (new ones prefixed by >>): drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'create_eml_sink': >> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:6599:5: warning: >> 'edid' is used uninitialized in this function [-Wuninitialized] 6599 | if (!edid) | ^ vim +/edid +6599 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c 6582 6583 static void create_eml_sink(struct amdgpu_dm_connector *aconnector) 6584 { 6585 struct drm_connector *connector = &aconnector->base; 6586 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(&aconnector->base); 6587 struct dc_sink_init_data init_params = { 6588 .link = aconnector->dc_link, 6589 .sink_signal = SIGNAL_TYPE_VIRTUAL 6590 }; 6591 struct edid *edid; 6592 6593 /* 6594 * Note: drm_get_edid gets edid in the following order: 6595 * 1) override EDID if set via edid_override debugfs, 6596 * 2) firmware EDID if set via edid_firmware module parameter 6597 * 3) regular DDC read. 6598 */ > 6599 if (!edid) 6600 edid = drm_get_edid(connector, &amdgpu_connector->ddc_bus->aux.ddc); 6601 6602 if (!edid) { 6603 DRM_ERROR("No EDID found on connector: %s.\n", connector->name); 6604 return; 6605 } 6606 6607 if (drm_detect_hdmi_monitor(edid)) 6608 init_params.sink_signal = SIGNAL_TYPE_HDMI_TYPE_A; 6609 6610 aconnector->edid = edid; 6611 6612 aconnector->dc_em_sink = dc_link_add_remote_sink( 6613 aconnector->dc_link, 6614 (uint8_t *)edid, 6615 (edid->extensions + 1) * EDID_LENGTH, 6616 &init_params); 6617 6618 if (aconnector->base.force == DRM_FORCE_ON) { 6619 aconnector->dc_sink = aconnector->dc_link->local_sink ? 6620 aconnector->dc_link->local_sink : 6621 aconnector->dc_em_sink; 6622 dc_sink_retain(aconnector->dc_sink); 6623 } 6624 } 6625 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
