[PATCH] drm: Fix EDID firmware load on resume

[kernel test robot]

Hi Matthieu,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on v5.19-rc6]
[also build test WARNING on linus/master]
[cannot apply to drm-misc/drm-misc-next next-20220715]
[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/Matthieu-CHARETTE/drm-Fix-EDID-firmware-load-on-resume/20220716-214028
base:    32346491ddf24599decca06190ebca03ff9de7f8
config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220717/202207170211.AaMpUwPs-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/e583aaf4f6464add35f2350c728d80a3fe790638
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Matthieu-CHARETTE/drm-Fix-EDID-firmware-load-on-resume/20220716-214028
        git checkout e583aaf4f6464add35f2350c728d80a3fe790638
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp at intel.com>

All warnings (new ones prefixed by >>):

   In file included from drivers/gpu/drm/drm_connector.c:25:
>> include/drm/drm_edid.h:387:1: warning: 'drm_cache_edid_firmware' used but never defined
     387 | drm_cache_edid_firmware(struct drm_connector *connector);
         | ^~~~~~~~~~~~~~~~~~~~~~~


vim +/drm_cache_edid_firmware +387 include/drm/drm_edid.h

   374	
   375	int drm_edid_to_sad(const struct edid *edid, struct cea_sad **sads);
   376	int drm_edid_to_speaker_allocation(const struct edid *edid, u8 **sadb);
   377	int drm_av_sync_delay(struct drm_connector *connector,
   378			      const struct drm_display_mode *mode);
   379	
   380	#ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE
   381	void drm_cache_edid_firmware(struct drm_connector *connector);
   382	struct edid *drm_load_edid_firmware(struct drm_connector *connector);
   383	int __drm_set_edid_firmware_path(const char *path);
   384	int __drm_get_edid_firmware_path(char *buf, size_t bufsize);
   385	#else
   386	static inline void
 > 387	drm_cache_edid_firmware(struct drm_connector *connector);
   388	static inline struct edid *
   389	drm_load_edid_firmware(struct drm_connector *connector)
   390	{
   391		return ERR_PTR(-ENOENT);
   392	}
   393	#endif
   394	

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