drm: remove drm_dev_set_unique

Not used by any drivers any more, the only use case in drm_dev_init()
can be inlined now.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230316082035.567520-2-christian.koenig@amd.com

drivers/gpu/drm/drm_drv.c

@@ -691,9 +691,11 @@ static int drm_dev_init(struct drm_device *dev,
 		}
 	}
 
-	ret = drm_dev_set_unique(dev, dev_name(parent));
-	if (ret)
+	dev->unique = drmm_kstrdup(dev, dev_name(parent), GFP_KERNEL);
+	if (!dev->unique) {
+		ret = -ENOMEM;
 		goto err;
+	}
 
 	return 0;
 
@@ -1000,26 +1002,6 @@ void drm_dev_unregister(struct drm_device *dev)
 }
 EXPORT_SYMBOL(drm_dev_unregister);
 
-/**
- * drm_dev_set_unique - Set the unique name of a DRM device
- * @dev: device of which to set the unique name
- * @name: unique name
- *
- * Sets the unique name of a DRM device using the specified string. This is
- * already done by drm_dev_init(), drivers should only override the default
- * unique name for backwards compatibility reasons.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-int drm_dev_set_unique(struct drm_device *dev, const char *name)
-{
-	drmm_kfree(dev, dev->unique);
-	dev->unique = drmm_kstrdup(dev, name, GFP_KERNEL);
-
-	return dev->unique ? 0 : -ENOMEM;
-}
-EXPORT_SYMBOL(drm_dev_set_unique);
-
 /*
  * DRM Core
  * The DRM core module initializes all global DRM objects and makes them

include/drm/drm_drv.h

@@ -584,8 +584,6 @@ static inline bool drm_drv_uses_atomic_modeset(struct drm_device *dev)
 }
 
 
-int drm_dev_set_unique(struct drm_device *dev, const char *name);
-
 /* TODO: Inline drm_firmware_drivers_only() in all its callers. */
 static inline bool drm_firmware_drivers_only(void)
 {