Hi Mario,

kernel test robot noticed the following build errors:

[auto build test ERROR on amd-pstate/linux-next]
[also build test ERROR on amd-pstate/bleeding-edge linus/master v6.11]
[cannot apply to next-20240918]
[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/drm-amd-display-switch-amdgpu_dm_connector-to-use-struct-drm_edid/20240912-093827
base:   https://git.kernel.org/pub/scm/linux/kernel/git/superm1/linux.git 
linux-next
patch link:    
https://lore.kernel.org/r/20240911213537.2338164-11-superm1%40kernel.org
patch subject: [PATCH v6 10/10] drm/amd/display: Fetch the EDID from _DDC if 
available for eDP
config: arm64-randconfig-003-20240918 
(https://download.01.org/0day-ci/archive/20240919/202409191128.4bvjysve-...@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): 
(https://download.01.org/0day-ci/archive/20240919/202409191128.4bvjysve-...@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/202409191128.4bvjysve-...@intel.com/

All errors (new ones prefixed by >>):

   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c: In 
function 'dm_helpers_probe_acpi_edid':
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c:883:28: 
>> error: unused variable 'ddev' [-Werror=unused-variable]
     883 |         struct drm_device *ddev = connector->dev;
         |                            ^~~~
   cc1: all warnings being treated as errors

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for FB_IOMEM_HELPERS
   Depends on [n]: HAS_IOMEM [=y] && FB_CORE [=n]
   Selected by [m]:
   - DRM_XE_DISPLAY [=y] && HAS_IOMEM [=y] && DRM [=y] && DRM_XE [=m] && DRM_XE 
[=m]=m [=m]


vim +/ddev +883 
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c

   878  
   879  static int
   880  dm_helpers_probe_acpi_edid(void *data, u8 *buf, unsigned int block, 
size_t len)
   881  {
   882          struct drm_connector *connector = data;
 > 883          struct drm_device *ddev = connector->dev;
   884          struct acpi_device *acpidev = ACPI_COMPANION(ddev->dev);
   885          unsigned char start = block * EDID_LENGTH;
   886          void *edid;
   887          int r;
   888  
   889          if (!acpidev)
   890                  return -ENODEV;
   891  
   892          /* fetch the entire edid from BIOS */
   893          r = acpi_video_get_edid(acpidev, ACPI_VIDEO_DISPLAY_LCD, -1, 
&edid);
   894          if (r < 0) {
   895                  DRM_DEBUG_KMS("Failed to get EDID from ACPI: %d\n", r);
   896                  return r;
   897          }
   898          if (len > r || start > r || start + len > r) {
   899                  r = -EINVAL;
   900                  goto cleanup;
   901          }
   902  
   903          memcpy(buf, edid + start, len);
   904          r = 0;
   905  
   906  cleanup:
   907          kfree(edid);
   908  
   909          return r;
   910  }
   911  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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