Commit a6b5fac5 authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

drm: re-export drm_dev_set_unique 



We still need it, for virtio-gpu for example.
Partial revert of commit a742946a.

Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent a25f0944

drivers/gpu/drm/drm_drv.c

+24 −14
Original line number Diff line number Diff line
@@ -313,9 +313,10 @@ 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. 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. 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().

 *

 * There is also deprecated support for initalizing device instances using

 * bus-specific helpers and the ->load() callback. But due to
@@ -337,17 +338,6 @@ void drm_minor_release(struct drm_minor *minor) 
 * dev_priv field of &drm_device.

 */



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
@@ -764,6 +754,26 @@ 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

include/drm/drmP.h

+1 −0
Original line number Diff line number Diff line
@@ -1050,6 +1050,7 @@ void drm_dev_ref(struct drm_device *dev); 
void drm_dev_unref(struct drm_device *dev);

int drm_dev_register(struct drm_device *dev, unsigned long flags);

void drm_dev_unregister(struct drm_device *dev);

int drm_dev_set_unique(struct drm_device *dev, const char *name);



struct drm_minor *drm_minor_acquire(unsigned int minor_id);

void drm_minor_release(struct drm_minor *minor);