diff options
author | Gerd Hoffmann <kraxel@redhat.com> | 2016-10-04 11:09:35 +0200 |
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committer | Gerd Hoffmann <kraxel@redhat.com> | 2016-11-15 09:45:30 +0100 |
commit | a6b5fac59cb216ac906f02300d3630c24520d9ef (patch) | |
tree | b89a0adaa214ec81a8297b109bc83666415c5457 /drivers/gpu/drm/drm_drv.c | |
parent | a25f0944ba9b1d8a6813fd6f1a86f1bd59ac25a6 (diff) | |
download | op-kernel-dev-a6b5fac59cb216ac906f02300d3630c24520d9ef.zip op-kernel-dev-a6b5fac59cb216ac906f02300d3630c24520d9ef.tar.gz |
drm: re-export drm_dev_set_unique
We still need it, for virtio-gpu for example.
Partial revert of commit a742946a1ba57e24e8be205ea87224c05b38c380.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_drv.c')
-rw-r--r-- | drivers/gpu/drm/drm_drv.c | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 6efdba4..2ad617e 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -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 |