[PATCH 4/4] drm: drm_dev_set_unique private, again

[Emil Velikov]

From: Emil Velikov <emil.velikov at collabora.com>

As of last commit we hide this from the drivers.

Effectively reverts commit a6b5fac59cb216ac906f02300d3630c24520d9ef.

Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Signed-off-by: Emil Velikov <emil.velikov at collabora.com>
---
 drivers/gpu/drm/drm_drv.c | 38 ++++++++++++++------------------------
 include/drm/drm_drv.h     |  3 ---
 2 files changed, 14 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 88da984ff9eb..26e360a0e50c 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -266,10 +266,9 @@ void drm_minor_release(struct drm_minor *minor)
  * callbacks implemented by the driver. The driver then needs to initialize all
  * the various subsystems for the drm device like memory management, vblank
  * handling, modesetting support and intial output configuration plus obviously
- * initialize all the corresponding hardware bits. An important part of this is
- * also calling drm_dev_set_unique() to set the userspace-visible unique name of
- * this device instance. Finally when everything is up and running and ready for
- * userspace the device instance can be published using drm_dev_register().
+ * initialize all the corresponding hardware bits. Finally when everything is up
+ * and running and ready for userspace the device instance can be published
+ * using drm_dev_register().
  *
  * There is also deprecated support for initalizing device instances using
  * bus-specific helpers and the &drm_driver.load callback. But due to
@@ -290,6 +289,17 @@ void drm_minor_release(struct drm_minor *minor)
  * structure, which is supported through drm_dev_init().
  */
 
+static int drm_dev_set_unique(struct drm_device *dev, const char *name)
+{
+	if (!name)
+		return -EINVAL;
+
+	kfree(dev->unique);
+	dev->unique = kstrdup(name, GFP_KERNEL);
+
+	return dev->unique ? 0 : -ENOMEM;
+}
+
 /**
  * drm_put_dev - Unregister and release a DRM device
  * @dev: DRM device
@@ -840,26 +850,6 @@ 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. Drivers
- * can use this at driver probe time if the unique name of the devices they
- * drive is static.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-int drm_dev_set_unique(struct drm_device *dev, const char *name)
-{
-	kfree(dev->unique);
-	dev->unique = kstrdup(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
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index d32b688eb346..3e6671fc9ced 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -642,7 +642,4 @@ static inline int drm_dev_is_unplugged(struct drm_device *dev)
 }
 
 
-int drm_dev_set_unique(struct drm_device *dev, const char *name);
-
-
 #endif
-- 
2.16.0