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authorThierry Reding <treding@nvidia.com>2017-02-28 15:46:38 +0100
committerThierry Reding <treding@nvidia.com>2017-02-28 16:14:55 +0100
commit020a218f95bd3ceff7dd1022ff7ebc0497bc7bf9 (patch)
tree343a200b9e4373a380dad7d00dd26fb90a8338e1 /include
parent2135ea7aafa26b6bfbbd304459fdb624e82e021e (diff)
drm: Introduce drm_mode_object_{get,put}()
For consistency with other reference counting APIs in the kernel, add drm_mode_object_get() and drm_mode_object_put() to reference count DRM mode objects. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. A semantic patch is provided that can be used to convert all drivers to the new helpers. Reviewed-by: Sean Paul <seanpaul@chromium.org> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-3-thierry.reding@gmail.com
Diffstat (limited to 'include')
-rw-r--r--include/drm/drm_mode_object.h36
1 files changed, 30 insertions, 6 deletions
diff --git a/include/drm/drm_mode_object.h b/include/drm/drm_mode_object.h
index 2c017adf6d74..a767b4a30a6d 100644
--- a/include/drm/drm_mode_object.h
+++ b/include/drm/drm_mode_object.h
@@ -45,10 +45,10 @@ struct drm_device;
* drm_object_attach_property() before the object is visible to userspace.
*
* - For objects with dynamic lifetimes (as indicated by a non-NULL @free_cb) it
- * provides reference counting through drm_mode_object_reference() and
- * drm_mode_object_unreference(). This is used by &drm_framebuffer,
- * &drm_connector and &drm_property_blob. These objects provide specialized
- * reference counting wrappers.
+ * provides reference counting through drm_mode_object_get() and
+ * drm_mode_object_put(). This is used by &drm_framebuffer, &drm_connector
+ * and &drm_property_blob. These objects provide specialized reference
+ * counting wrappers.
*/
struct drm_mode_object {
uint32_t id;
@@ -114,8 +114,32 @@ struct drm_object_properties {
struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
uint32_t id, uint32_t type);
-void drm_mode_object_reference(struct drm_mode_object *obj);
-void drm_mode_object_unreference(struct drm_mode_object *obj);
+void drm_mode_object_get(struct drm_mode_object *obj);
+void drm_mode_object_put(struct drm_mode_object *obj);
+
+/**
+ * drm_mode_object_reference - acquire a mode object reference
+ * @obj: DRM mode object
+ *
+ * This is a compatibility alias for drm_mode_object_get() and should not be
+ * used by new code.
+ */
+static inline void drm_mode_object_reference(struct drm_mode_object *obj)
+{
+ drm_mode_object_get(obj);
+}
+
+/**
+ * drm_mode_object_unreference - release a mode object reference
+ * @obj: DRM mode object
+ *
+ * This is a compatibility alias for drm_mode_object_put() and should not be
+ * used by new code.
+ */
+static inline void drm_mode_object_unreference(struct drm_mode_object *obj)
+{
+ drm_mode_object_put(obj);
+}
int drm_object_property_set_value(struct drm_mode_object *obj,
struct drm_property *property,