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drm/dev: Remove drm_dev_init

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We can now also delete drm_dev_init, now that vkms, vgem and i915
selftests are resolved.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200918132505.2316382-5-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2020-09-18 15:25:05 +02:00
parent df2ce4596c
commit a7d39439f8
4 changed files with 4 additions and 55 deletions
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41
drivers/gpu/drm/drm_drv.c
View File

@ -573,43 +573,9 @@ static void drm_dev_init_release(struct drm_device *dev, void *res)
drm_legacy_destroy_members(dev);
}
/**
* drm_dev_init - Initialise new DRM device
* @dev: DRM device
* @driver: DRM driver
* @parent: Parent device object
*
* Initialize a new DRM device. No device registration is done.
* Call drm_dev_register() to advertice the device to user space and register it
* with other core subsystems. This should be done last in the device
* initialization sequence to make sure userspace can't access an inconsistent
* state.
*
* The initial ref-count of the object is 1. Use drm_dev_get() and
* drm_dev_put() to take and drop further ref-counts.
*
* It is recommended that drivers embed &struct drm_device into their own device
* structure.
*
* Drivers that do not want to allocate their own device struct
* embedding &struct drm_device can call drm_dev_alloc() instead. For drivers
* that do embed &struct drm_device it must be placed first in the overall
* structure, and the overall structure must be allocated using kmalloc(): The
* drm core's release function unconditionally calls kfree() on the @dev pointer
* when the final reference is released. To override this behaviour, and so
* allow embedding of the drm_device inside the driver's device struct at an
* arbitrary offset, you must supply a &drm_driver.release callback and control
* the finalization explicitly.
*
* Note that drivers must call drmm_add_final_kfree() after this function has
* completed successfully.
*
* RETURNS:
* 0 on success, or error code on failure.
*/
int drm_dev_init(struct drm_device *dev,
struct drm_driver *driver,
struct device *parent)
static int drm_dev_init(struct drm_device *dev,
struct drm_driver *driver,
struct device *parent)
{
int ret;
@ -689,7 +655,6 @@ int drm_dev_init(struct drm_device *dev,
return ret;
}
EXPORT_SYMBOL(drm_dev_init);
static void devm_drm_dev_init_release(void *data)
{

1
drivers/gpu/drm/drm_internal.h
View File

@ -95,6 +95,7 @@ void drm_minor_release(struct drm_minor *minor);
/* drm_managed.c */
void drm_managed_release(struct drm_device *dev);
void drmm_add_final_kfree(struct drm_device *dev, void *container);
/* drm_vblank.c */
static inline bool drm_vblank_passed(u64 seq, u64 ref)

13
drivers/gpu/drm/drm_managed.c
View File

@ -125,18 +125,6 @@ static void add_dr(struct drm_device *dev, struct drmres *dr)
dr, dr->node.name, (unsigned long) dr->node.size);
}
/**
* drmm_add_final_kfree - add release action for the final kfree()
* @dev: DRM device
* @container: pointer to the kmalloc allocation containing @dev
*
* Since the allocation containing the struct &drm_device must be allocated
* before it can be initialized with drm_dev_init() there's no way to allocate
* that memory with drmm_kmalloc(). To side-step this chicken-egg problem the
* pointer for this final kfree() must be specified by calling this function. It
* will be released in the final drm_dev_put() for @dev, after all other release
* actions installed through drmm_add_action() have been processed.
*/
void drmm_add_final_kfree(struct drm_device *dev, void *container)
{
WARN_ON(dev->managed.final_kfree);
@ -144,7 +132,6 @@ void drmm_add_final_kfree(struct drm_device *dev, void *container)
WARN_ON(dev + 1 > (struct drm_device *) (container + ksize(container)));
dev->managed.final_kfree = container;
}
EXPORT_SYMBOL(drmm_add_final_kfree);
int __drmm_add_action(struct drm_device *dev,
drmres_release_t action,

4
include/drm/drm_drv.h
View File

@ -588,10 +588,6 @@ struct drm_driver {
int dev_priv_size;
};
int drm_dev_init(struct drm_device *dev,
struct drm_driver *driver,
struct device *parent);
void *__devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
size_t size, size_t offset);