[drm-misc:drm-misc-next 1/3] include/drm/drm_drv.h:587:13: warning: 'drm_debugfs_dev_init' defined but not used

[kernel test robot]

tree:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
head:   8e455145d8f163aefa6b9cc29478e0a9f82276e6
commit: 0b30d57acafcaa5374756d314ee54f80d0bcc860 [1/3] drm/debugfs: rework debugfs directory creation v5
config: parisc-randconfig-r033-20230901 (https://download.01.org/0day-ci/archive/20230901/202309012114.T8Vlfaf8-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230901/202309012114.T8Vlfaf8-lkp@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 <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309012114.T8Vlfaf8-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from drivers/gpu/drm/solomon/ssd130x.h:18,
                    from drivers/gpu/drm/solomon/ssd130x-i2c.c:14:
>> include/drm/drm_drv.h:587:13: warning: 'drm_debugfs_dev_init' defined but not used [-Wunused-function]
     587 | static void drm_debugfs_dev_init(struct drm_device *dev, struct dentry *root)
         |             ^~~~~~~~~~~~~~~~~~~~


vim +/drm_debugfs_dev_init +587 include/drm/drm_drv.h

   583	
   584	#if defined(CONFIG_DEBUG_FS)
   585	void drm_debugfs_dev_init(struct drm_device *dev, struct dentry *root);
   586	#else
 > 587	static void drm_debugfs_dev_init(struct drm_device *dev, struct dentry *root)
   588	{
   589	}
   590	#endif
   591	

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