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drm: rename, adjust and export drm_atomic_replace_property_blob 

The function has little to do with atomic, it's just where it has so
far been needed. So, rename it to drm_property_replace_blob, move it
to drm_property.c and export it.

Change the semantics to return whether the blob was replaced instead
of using an extra argument for that.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170713162538.22788-2-peda@axentia.se
This commit is contained in:
Peter Rosin 2017-07-13 18:25:25 +02:00 committed by Daniel Vetter
parent e38e128950
commit 5f057ffd6d
3 changed files with 26 additions and 29 deletions
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30
drivers/gpu/drm/drm_atomic.c
View File

@ -411,34 +411,6 @@ int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state,
}
EXPORT_SYMBOL(drm_atomic_set_mode_prop_for_crtc);
/**
* drm_atomic_replace_property_blob - replace a blob property
* @blob: a pointer to the member blob to be replaced
* @new_blob: the new blob to replace with
* @replaced: whether the blob has been replaced
*
* RETURNS:
* Zero on success, error code on failure
*/
static void
drm_atomic_replace_property_blob(struct drm_property_blob **blob,
struct drm_property_blob *new_blob,
bool *replaced)
{
struct drm_property_blob *old_blob = *blob;
if (old_blob == new_blob)
return;
drm_property_blob_put(old_blob);
if (new_blob)
drm_property_blob_get(new_blob);
*blob = new_blob;
*replaced = true;
return;
}
static int
drm_atomic_replace_property_blob_from_id(struct drm_device *dev,
struct drm_property_blob **blob,
@ -459,7 +431,7 @@ drm_atomic_replace_property_blob_from_id(struct drm_device *dev,
}
}
drm_atomic_replace_property_blob(blob, new_blob, replaced);
*replaced |= drm_property_replace_blob(blob, new_blob);
drm_property_blob_put(new_blob);
return 0;

23
drivers/gpu/drm/drm_property.c
View File

@ -709,6 +709,29 @@ err_created:
}
EXPORT_SYMBOL(drm_property_replace_global_blob);
/**
* drm_property_replace_blob - replace a blob property
* @blob: a pointer to the member blob to be replaced
* @new_blob: the new blob to replace with
*
* Return: true if the blob was in fact replaced.
*/
bool drm_property_replace_blob(struct drm_property_blob **blob,
struct drm_property_blob *new_blob)
{
struct drm_property_blob *old_blob = *blob;
if (old_blob == new_blob)
return false;
drm_property_blob_put(old_blob);
if (new_blob)
drm_property_blob_get(new_blob);
*blob = new_blob;
return true;
}
EXPORT_SYMBOL(drm_property_replace_blob);
int drm_mode_getblob_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{

2
include/drm/drm_property.h
View File

@ -273,6 +273,8 @@ int drm_property_replace_global_blob(struct drm_device *dev,
const void *data,
struct drm_mode_object *obj_holds_id,
struct drm_property *prop_holds_id);
bool drm_property_replace_blob(struct drm_property_blob **blob,
struct drm_property_blob *new_blob);
struct drm_property_blob *drm_property_blob_get(struct drm_property_blob *blob);
void drm_property_blob_put(struct drm_property_blob *blob);