[PATCH v2 0/2] drm/tilcdc: replace reference/unreference with get/put

[PATCH v2 0/2] drm/tilcdc: replace reference/unreference with get/put

[Aishwarya Pant]

This patchset introduces drm_dev_get() and drm_dev_put() functions that are
intented to be replacements for drm_dev_{ref/unref}.

Then all usages of ref/reference and unref/unreference suffixes are replaced by
get/put reference count functions in tilcdc. The following cocci script was used
to make the tilcdc patch:

@@
expression ex;
@@

(
-drm_framebuffer_unreference(ex);
+drm_framebuffer_put(ex);
|
-drm_dev_unref(ex);
+drm_dev_put(ex);
|
-drm_framebuffer_reference(ex);
+drm_framebuffer_get(ex);
)

Changes in v2
- Drop drm_dev_ref after replacing all its usages
- Update the drm subsystem wide cocci script drm-get-put with the new helper for
  drm_dev_unref to drm_dev_get conversion

Aishwarya Pant (2):
  drm: introduce drm_dev_{get/put} functions
  drm/tilcdc: replace reference/unreference() with get/put

 drivers/gpu/drm/drm_drv.c                | 51 ++++++++++++++++++++------------
 drivers/gpu/drm/drm_prime.c              |  2 +-
 drivers/gpu/drm/tilcdc/tilcdc_crtc.c     |  6 ++--
 drivers/gpu/drm/tilcdc/tilcdc_drv.c      |  2 +-
 include/drm/drm_drv.h                    |  5 ++--
 scripts/coccinelle/api/drm-get-put.cocci |  5 ++++
 6 files changed, 45 insertions(+), 26 deletions(-)

-- 
2.7.4

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[PATCH v2 0/2] drm/tilcdc: replace reference/unreference with get/put

[Aishwarya Pant]

This patchset introduces drm_dev_get() and drm_dev_put() functions that are
intented to be replacements for drm_dev_{ref/unref}.

Then all usages of ref/reference and unref/unreference suffixes are replaced by
get/put reference count functions in tilcdc. The following cocci script was used
to make the tilcdc patch:

@@
expression ex;
@@

(
-drm_framebuffer_unreference(ex);
+drm_framebuffer_put(ex);
|
-drm_dev_unref(ex);
+drm_dev_put(ex);
|
-drm_framebuffer_reference(ex);
+drm_framebuffer_get(ex);
)

Changes in v2
- Drop drm_dev_ref after replacing all its usages
- Update the drm subsystem wide cocci script drm-get-put with the new helper for
  drm_dev_unref to drm_dev_get conversion

Aishwarya Pant (2):
  drm: introduce drm_dev_{get/put} functions
  drm/tilcdc: replace reference/unreference() with get/put

 drivers/gpu/drm/drm_drv.c                | 51 ++++++++++++++++++++------------
 drivers/gpu/drm/drm_prime.c              |  2 +-
 drivers/gpu/drm/tilcdc/tilcdc_crtc.c     |  6 ++--
 drivers/gpu/drm/tilcdc/tilcdc_drv.c      |  2 +-
 include/drm/drm_drv.h                    |  5 ++--
 scripts/coccinelle/api/drm-get-put.cocci |  5 ++++
 6 files changed, 45 insertions(+), 26 deletions(-)

-- 
2.7.4

[PATCH v2 1/2] drm: introduce drm_dev_{get/put} functions

[Aishwarya Pant]

Reference counting functions in the kernel typically use get/put suffixes. For
maintaining coding style consistency, introduce drm_dev_{get/put} functions. All
callers of drm_dev_ref() API have been converted in this patch and hence it has
been dropped while the drm_dev_unref() API with non-trivial number of users
remains for compatibility.

The semantic patch scripts/coccinelle/api/drm-get-put.cocci has been updated
with the new helper for conversion of drm_dev_unref() to drm_dev_put()

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
---
Changes in v2
- Drop drm_dev_ref after replacing all its usages
- Update the drm subsystem wide cocci script drm-get-put with the new helper for
  drm_dev_unref to drm_dev_get conversion

 drivers/gpu/drm/drm_drv.c                | 51 ++++++++++++++++++++------------
 drivers/gpu/drm/drm_prime.c              |  2 +-
 include/drm/drm_drv.h                    |  5 ++--
 scripts/coccinelle/api/drm-get-put.cocci |  5 ++++
 4 files changed, 41 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index be38ac7..c0292e5 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -286,13 +286,13 @@ struct drm_minor *drm_minor_acquire(unsigned int minor_id)
 	spin_lock_irqsave(&drm_minor_lock, flags);
 	minor = idr_find(&drm_minors_idr, minor_id);
 	if (minor)
-		drm_dev_ref(minor->dev);
+		drm_dev_get(minor->dev);
 	spin_unlock_irqrestore(&drm_minor_lock, flags);
 
 	if (!minor) {
 		return ERR_PTR(-ENODEV);
 	} else if (drm_dev_is_unplugged(minor->dev)) {
-		drm_dev_unref(minor->dev);
+		drm_dev_put(minor->dev);
 		return ERR_PTR(-ENODEV);
 	}
 
@@ -301,7 +301,7 @@ struct drm_minor *drm_minor_acquire(unsigned int minor_id)
 
 void drm_minor_release(struct drm_minor *minor)
 {
-	drm_dev_unref(minor->dev);
+	drm_dev_put(minor->dev);
 }
 
 /**
@@ -326,11 +326,11 @@ void drm_minor_release(struct drm_minor *minor)
  * When cleaning up a device instance everything needs to be done in reverse:
  * First unpublish the device instance with drm_dev_unregister(). Then clean up
  * any other resources allocated at device initialization and drop the driver's
- * reference to &drm_device using drm_dev_unref().
+ * reference to &drm_device using drm_dev_put().
  *
  * Note that the lifetime rules for &drm_device instance has still a lot of
  * historical baggage. Hence use the reference counting provided by
- * drm_dev_ref() and drm_dev_unref() only carefully.
+ * drm_dev_get() and drm_dev_put() only carefully.
  *
  * It is recommended that drivers embed &struct drm_device into their own device
  * structure, which is supported through drm_dev_init().
@@ -345,7 +345,7 @@ void drm_minor_release(struct drm_minor *minor)
  * Cleans up all DRM device, calling drm_lastclose().
  *
  * Note: Use of this function is deprecated. It will eventually go away
- * completely.  Please use drm_dev_unregister() and drm_dev_unref() explicitly
+ * completely.  Please use drm_dev_unregister() and drm_dev_put() explicitly
  * instead to make sure that the device isn't userspace accessible any more
  * while teardown is in progress, ensuring that userspace can't access an
  * inconsistent state.
@@ -360,7 +360,7 @@ void drm_put_dev(struct drm_device *dev)
 	}
 
 	drm_dev_unregister(dev);
-	drm_dev_unref(dev);
+	drm_dev_put(dev);
 }
 EXPORT_SYMBOL(drm_put_dev);
 
@@ -386,7 +386,7 @@ void drm_dev_unplug(struct drm_device *dev)
 	mutex_lock(&drm_global_mutex);
 	drm_device_set_unplugged(dev);
 	if (dev->open_count == 0)
-		drm_dev_unref(dev);
+		drm_dev_put(dev);
 	mutex_unlock(&drm_global_mutex);
 }
 EXPORT_SYMBOL(drm_dev_unplug);
@@ -475,8 +475,8 @@ static void drm_fs_inode_free(struct inode *inode)
  * initialization sequence to make sure userspace can't access an inconsistent
  * state.
  *
- * The initial ref-count of the object is 1. Use drm_dev_ref() and
- * drm_dev_unref() to take and drop further ref-counts.
+ * The initial ref-count of the object is 1. Use drm_dev_get() and
+ * drm_dev_put() to take and drop further ref-counts.
  *
  * Note that for purely virtual devices @parent can be NULL.
  *
@@ -626,8 +626,8 @@ EXPORT_SYMBOL(drm_dev_fini);
  * initialization sequence to make sure userspace can't access an inconsistent
  * state.
  *
- * The initial ref-count of the object is 1. Use drm_dev_ref() and
- * drm_dev_unref() to take and drop further ref-counts.
+ * The initial ref-count of the object is 1. Use drm_dev_get() and
+ * drm_dev_put() to take and drop further ref-counts.
  *
  * Note that for purely virtual devices @parent can be NULL.
  *
@@ -670,36 +670,49 @@ static void drm_dev_release(struct kref *ref)
 }
 
 /**
- * drm_dev_ref - Take reference of a DRM device
+ * drm_dev_get - Take reference of a DRM device
  * @dev: device to take reference of or NULL
  *
  * This increases the ref-count of @dev by one. You *must* already own a
- * reference when calling this. Use drm_dev_unref() to drop this reference
+ * reference when calling this. Use drm_dev_put() to drop this reference
  * again.
  *
  * This function never fails. However, this function does not provide *any*
  * guarantee whether the device is alive or running. It only provides a
  * reference to the object and the memory associated with it.
  */
-void drm_dev_ref(struct drm_device *dev)
+void drm_dev_get(struct drm_device *dev)
 {
 	if (dev)
 		kref_get(&dev->ref);
 }
-EXPORT_SYMBOL(drm_dev_ref);
+EXPORT_SYMBOL(drm_dev_get);
 
 /**
- * drm_dev_unref - Drop reference of a DRM device
+ * drm_dev_put - Drop reference of a DRM device
  * @dev: device to drop reference of or NULL
  *
  * This decreases the ref-count of @dev by one. The device is destroyed if the
  * ref-count drops to zero.
  */
-void drm_dev_unref(struct drm_device *dev)
+void drm_dev_put(struct drm_device *dev)
 {
 	if (dev)
 		kref_put(&dev->ref, drm_dev_release);
 }
+EXPORT_SYMBOL(drm_dev_put);
+
+/**
+ * drm_dev_unref - Drop reference of a DRM device
+ * @dev: device to drop reference of or NULL
+ *
+ * This is a compatibility alias for drm_dev_put() and should not be used by new
+ * code.
+ */
+void drm_dev_unref(struct drm_device *dev)
+{
+	drm_dev_put(dev);
+}
 EXPORT_SYMBOL(drm_dev_unref);
 
 static int create_compat_control_link(struct drm_device *dev)
@@ -839,7 +852,7 @@ EXPORT_SYMBOL(drm_dev_register);
  *
  * Unregister the DRM device from the system. This does the reverse of
  * drm_dev_register() but does not deallocate the device. The caller must call
- * drm_dev_unref() to drop their final reference.
+ * drm_dev_put() to drop their final reference.
  *
  * A special form of unregistering for hotpluggable devices is drm_dev_unplug(),
  * which can be called while there are still open users of @dev.
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index 22408ba..782b95e 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -318,7 +318,7 @@ struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
 	if (IS_ERR(dma_buf))
 		return dma_buf;
 
-	drm_dev_ref(dev);
+	drm_dev_get(dev);
 	drm_gem_object_get(exp_info->priv);
 
 	return dma_buf;
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 71bbaae..ee06ecd 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -155,7 +155,7 @@ struct drm_driver {
 	 * reverse order of the initialization.  Similarly to the load
 	 * hook, this handler is deprecated and its usage should be
 	 * dropped in favor of an open-coded teardown function at the
-	 * driver layer.  See drm_dev_unregister() and drm_dev_unref()
+	 * driver layer.  See drm_dev_unregister() and drm_dev_put()
 	 * for the proper way to remove a &struct drm_device.
 	 *
 	 * The unload() hook is called right after unregistering
@@ -611,7 +611,8 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
 int drm_dev_register(struct drm_device *dev, unsigned long flags);
 void drm_dev_unregister(struct drm_device *dev);
 
-void drm_dev_ref(struct drm_device *dev);
+void drm_dev_get(struct drm_device *dev);
+void drm_dev_put(struct drm_device *dev);
 void drm_dev_unref(struct drm_device *dev);
 void drm_put_dev(struct drm_device *dev);
 void drm_dev_unplug(struct drm_device *dev);
diff --git a/scripts/coccinelle/api/drm-get-put.cocci b/scripts/coccinelle/api/drm-get-put.cocci
index 0c7a926..dc10dee 100644
--- a/scripts/coccinelle/api/drm-get-put.cocci
+++ b/scripts/coccinelle/api/drm-get-put.cocci
@@ -50,6 +50,9 @@ expression object;
 |
 - drm_property_unreference_blob(object)
 + drm_property_blob_put(object)
+|
+- drm_dev_unref(object)
++ drm_dev_put(object)
 )
 
 @r depends on report@
@@ -81,6 +84,8 @@ drm_gem_object_unreference_unlocked(object)
 drm_property_unreference_blob@p(object)
 |
 drm_property_reference_blob@p(object)
+|
+drm_dev_unref@p(object)
 )
 
 @script:python depends on report@
-- 
2.7.4

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[PATCH v2 1/2] drm: introduce drm_dev_{get/put} functions

[Aishwarya Pant]

Reference counting functions in the kernel typically use get/put suffixes. For
maintaining coding style consistency, introduce drm_dev_{get/put} functions. All
callers of drm_dev_ref() API have been converted in this patch and hence it has
been dropped while the drm_dev_unref() API with non-trivial number of users
remains for compatibility.

The semantic patch scripts/coccinelle/api/drm-get-put.cocci has been updated
with the new helper for conversion of drm_dev_unref() to drm_dev_put()

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
---
Changes in v2
- Drop drm_dev_ref after replacing all its usages
- Update the drm subsystem wide cocci script drm-get-put with the new helper for
  drm_dev_unref to drm_dev_get conversion

 drivers/gpu/drm/drm_drv.c                | 51 ++++++++++++++++++++------------
 drivers/gpu/drm/drm_prime.c              |  2 +-
 include/drm/drm_drv.h                    |  5 ++--
 scripts/coccinelle/api/drm-get-put.cocci |  5 ++++
 4 files changed, 41 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index be38ac7..c0292e5 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -286,13 +286,13 @@ struct drm_minor *drm_minor_acquire(unsigned int minor_id)
 	spin_lock_irqsave(&drm_minor_lock, flags);
 	minor = idr_find(&drm_minors_idr, minor_id);
 	if (minor)
-		drm_dev_ref(minor->dev);
+		drm_dev_get(minor->dev);
 	spin_unlock_irqrestore(&drm_minor_lock, flags);
 
 	if (!minor) {
 		return ERR_PTR(-ENODEV);
 	} else if (drm_dev_is_unplugged(minor->dev)) {
-		drm_dev_unref(minor->dev);
+		drm_dev_put(minor->dev);
 		return ERR_PTR(-ENODEV);
 	}
 
@@ -301,7 +301,7 @@ struct drm_minor *drm_minor_acquire(unsigned int minor_id)
 
 void drm_minor_release(struct drm_minor *minor)
 {
-	drm_dev_unref(minor->dev);
+	drm_dev_put(minor->dev);
 }
 
 /**
@@ -326,11 +326,11 @@ void drm_minor_release(struct drm_minor *minor)
  * When cleaning up a device instance everything needs to be done in reverse:
  * First unpublish the device instance with drm_dev_unregister(). Then clean up
  * any other resources allocated at device initialization and drop the driver's
- * reference to &drm_device using drm_dev_unref().
+ * reference to &drm_device using drm_dev_put().
  *
  * Note that the lifetime rules for &drm_device instance has still a lot of
  * historical baggage. Hence use the reference counting provided by
- * drm_dev_ref() and drm_dev_unref() only carefully.
+ * drm_dev_get() and drm_dev_put() only carefully.
  *
  * It is recommended that drivers embed &struct drm_device into their own device
  * structure, which is supported through drm_dev_init().
@@ -345,7 +345,7 @@ void drm_minor_release(struct drm_minor *minor)
  * Cleans up all DRM device, calling drm_lastclose().
  *
  * Note: Use of this function is deprecated. It will eventually go away
- * completely.  Please use drm_dev_unregister() and drm_dev_unref() explicitly
+ * completely.  Please use drm_dev_unregister() and drm_dev_put() explicitly
  * instead to make sure that the device isn't userspace accessible any more
  * while teardown is in progress, ensuring that userspace can't access an
  * inconsistent state.
@@ -360,7 +360,7 @@ void drm_put_dev(struct drm_device *dev)
 	}
 
 	drm_dev_unregister(dev);
-	drm_dev_unref(dev);
+	drm_dev_put(dev);
 }
 EXPORT_SYMBOL(drm_put_dev);
 
@@ -386,7 +386,7 @@ void drm_dev_unplug(struct drm_device *dev)
 	mutex_lock(&drm_global_mutex);
 	drm_device_set_unplugged(dev);
 	if (dev->open_count == 0)
-		drm_dev_unref(dev);
+		drm_dev_put(dev);
 	mutex_unlock(&drm_global_mutex);
 }
 EXPORT_SYMBOL(drm_dev_unplug);
@@ -475,8 +475,8 @@ static void drm_fs_inode_free(struct inode *inode)
  * initialization sequence to make sure userspace can't access an inconsistent
  * state.
  *
- * The initial ref-count of the object is 1. Use drm_dev_ref() and
- * drm_dev_unref() to take and drop further ref-counts.
+ * The initial ref-count of the object is 1. Use drm_dev_get() and
+ * drm_dev_put() to take and drop further ref-counts.
  *
  * Note that for purely virtual devices @parent can be NULL.
  *
@@ -626,8 +626,8 @@ EXPORT_SYMBOL(drm_dev_fini);
  * initialization sequence to make sure userspace can't access an inconsistent
  * state.
  *
- * The initial ref-count of the object is 1. Use drm_dev_ref() and
- * drm_dev_unref() to take and drop further ref-counts.
+ * The initial ref-count of the object is 1. Use drm_dev_get() and
+ * drm_dev_put() to take and drop further ref-counts.
  *
  * Note that for purely virtual devices @parent can be NULL.
  *
@@ -670,36 +670,49 @@ static void drm_dev_release(struct kref *ref)
 }
 
 /**
- * drm_dev_ref - Take reference of a DRM device
+ * drm_dev_get - Take reference of a DRM device
  * @dev: device to take reference of or NULL
  *
  * This increases the ref-count of @dev by one. You *must* already own a
- * reference when calling this. Use drm_dev_unref() to drop this reference
+ * reference when calling this. Use drm_dev_put() to drop this reference
  * again.
  *
  * This function never fails. However, this function does not provide *any*
  * guarantee whether the device is alive or running. It only provides a
  * reference to the object and the memory associated with it.
  */
-void drm_dev_ref(struct drm_device *dev)
+void drm_dev_get(struct drm_device *dev)
 {
 	if (dev)
 		kref_get(&dev->ref);
 }
-EXPORT_SYMBOL(drm_dev_ref);
+EXPORT_SYMBOL(drm_dev_get);
 
 /**
- * drm_dev_unref - Drop reference of a DRM device
+ * drm_dev_put - Drop reference of a DRM device
  * @dev: device to drop reference of or NULL
  *
  * This decreases the ref-count of @dev by one. The device is destroyed if the
  * ref-count drops to zero.
  */
-void drm_dev_unref(struct drm_device *dev)
+void drm_dev_put(struct drm_device *dev)
 {
 	if (dev)
 		kref_put(&dev->ref, drm_dev_release);
 }
+EXPORT_SYMBOL(drm_dev_put);
+
+/**
+ * drm_dev_unref - Drop reference of a DRM device
+ * @dev: device to drop reference of or NULL
+ *
+ * This is a compatibility alias for drm_dev_put() and should not be used by new
+ * code.
+ */
+void drm_dev_unref(struct drm_device *dev)
+{
+	drm_dev_put(dev);
+}
 EXPORT_SYMBOL(drm_dev_unref);
 
 static int create_compat_control_link(struct drm_device *dev)
@@ -839,7 +852,7 @@ EXPORT_SYMBOL(drm_dev_register);
  *
  * Unregister the DRM device from the system. This does the reverse of
  * drm_dev_register() but does not deallocate the device. The caller must call
- * drm_dev_unref() to drop their final reference.
+ * drm_dev_put() to drop their final reference.
  *
  * A special form of unregistering for hotpluggable devices is drm_dev_unplug(),
  * which can be called while there are still open users of @dev.
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index 22408ba..782b95e 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -318,7 +318,7 @@ struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
 	if (IS_ERR(dma_buf))
 		return dma_buf;
 
-	drm_dev_ref(dev);
+	drm_dev_get(dev);
 	drm_gem_object_get(exp_info->priv);
 
 	return dma_buf;
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 71bbaae..ee06ecd 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -155,7 +155,7 @@ struct drm_driver {
 	 * reverse order of the initialization.  Similarly to the load
 	 * hook, this handler is deprecated and its usage should be
 	 * dropped in favor of an open-coded teardown function at the
-	 * driver layer.  See drm_dev_unregister() and drm_dev_unref()
+	 * driver layer.  See drm_dev_unregister() and drm_dev_put()
 	 * for the proper way to remove a &struct drm_device.
 	 *
 	 * The unload() hook is called right after unregistering
@@ -611,7 +611,8 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
 int drm_dev_register(struct drm_device *dev, unsigned long flags);
 void drm_dev_unregister(struct drm_device *dev);
 
-void drm_dev_ref(struct drm_device *dev);
+void drm_dev_get(struct drm_device *dev);
+void drm_dev_put(struct drm_device *dev);
 void drm_dev_unref(struct drm_device *dev);
 void drm_put_dev(struct drm_device *dev);
 void drm_dev_unplug(struct drm_device *dev);
diff --git a/scripts/coccinelle/api/drm-get-put.cocci b/scripts/coccinelle/api/drm-get-put.cocci
index 0c7a926..dc10dee 100644
--- a/scripts/coccinelle/api/drm-get-put.cocci
+++ b/scripts/coccinelle/api/drm-get-put.cocci
@@ -50,6 +50,9 @@ expression object;
 |
 - drm_property_unreference_blob(object)
 + drm_property_blob_put(object)
+|
+- drm_dev_unref(object)
++ drm_dev_put(object)
 )
 
 @r depends on report@
@@ -81,6 +84,8 @@ drm_gem_object_unreference_unlocked(object)
 drm_property_unreference_blob@p(object)
 |
 drm_property_reference_blob@p(object)
+|
+drm_dev_unref@p(object)
 )
 
 @script:python depends on report@
-- 
2.7.4

[PATCH v2 2/2] drm/tilcdc: replace reference/unreference() with get/put

[Aishwarya Pant]

For maintaining consistency with kernel coding style replace
reference/unreference in ref counting functions with get/put.

The following cocci script was used to generate the tilcdc patch:

@@
expression ex;
@@

(
-drm_framebuffer_unreference(ex);
+drm_framebuffer_put(ex);
|
-drm_dev_unref(ex);
+drm_dev_put(ex);
|
-drm_framebuffer_reference(ex);
+drm_framebuffer_get(ex);
)

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
---
No changes in v2

drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 6 +++---
 drivers/gpu/drm/tilcdc/tilcdc_drv.c  | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index 406fe45..d2589f310 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -75,7 +75,7 @@ static void unref_worker(struct drm_flip_work *work, void *val)
 	struct drm_device *dev = tilcdc_crtc->base.dev;
 
 	mutex_lock(&dev->mode_config.mutex);
-	drm_framebuffer_unreference(val);
+	drm_framebuffer_put(val);
 	mutex_unlock(&dev->mode_config.mutex);
 }
 
@@ -456,7 +456,7 @@ static void tilcdc_crtc_set_mode(struct drm_crtc *crtc)
 
 	set_scanout(crtc, fb);
 
-	drm_framebuffer_reference(fb);
+	drm_framebuffer_get(fb);
 
 	crtc->hwmode = crtc->state->adjusted_mode;
 }
@@ -633,7 +633,7 @@ int tilcdc_crtc_update_fb(struct drm_crtc *crtc,
 		return -EBUSY;
 	}
 
-	drm_framebuffer_reference(fb);
+	drm_framebuffer_get(fb);
 
 	crtc->primary->fb = fb;
 	tilcdc_crtc->event = event;
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index b0d70f9..74276ef 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -225,7 +225,7 @@ static void tilcdc_fini(struct drm_device *dev)
 
 	pm_runtime_disable(dev->dev);
 
-	drm_dev_unref(dev);
+	drm_dev_put(dev);
 }
 
 static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
-- 
2.7.4

_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[PATCH v2 2/2] drm/tilcdc: replace reference/unreference() with get/put

[Aishwarya Pant]

For maintaining consistency with kernel coding style replace
reference/unreference in ref counting functions with get/put.

The following cocci script was used to generate the tilcdc patch:

@@
expression ex;
@@

(
-drm_framebuffer_unreference(ex);
+drm_framebuffer_put(ex);
|
-drm_dev_unref(ex);
+drm_dev_put(ex);
|
-drm_framebuffer_reference(ex);
+drm_framebuffer_get(ex);
)

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
---
No changes in v2

drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 6 +++---
 drivers/gpu/drm/tilcdc/tilcdc_drv.c  | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index 406fe45..d2589f310 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -75,7 +75,7 @@ static void unref_worker(struct drm_flip_work *work, void *val)
 	struct drm_device *dev = tilcdc_crtc->base.dev;
 
 	mutex_lock(&dev->mode_config.mutex);
-	drm_framebuffer_unreference(val);
+	drm_framebuffer_put(val);
 	mutex_unlock(&dev->mode_config.mutex);
 }
 
@@ -456,7 +456,7 @@ static void tilcdc_crtc_set_mode(struct drm_crtc *crtc)
 
 	set_scanout(crtc, fb);
 
-	drm_framebuffer_reference(fb);
+	drm_framebuffer_get(fb);
 
 	crtc->hwmode = crtc->state->adjusted_mode;
 }
@@ -633,7 +633,7 @@ int tilcdc_crtc_update_fb(struct drm_crtc *crtc,
 		return -EBUSY;
 	}
 
-	drm_framebuffer_reference(fb);
+	drm_framebuffer_get(fb);
 
 	crtc->primary->fb = fb;
 	tilcdc_crtc->event = event;
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index b0d70f9..74276ef 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -225,7 +225,7 @@ static void tilcdc_fini(struct drm_device *dev)
 
 	pm_runtime_disable(dev->dev);
 
-	drm_dev_unref(dev);
+	drm_dev_put(dev);
 }
 
 static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
-- 
2.7.4

Re: [PATCH v2 2/2] drm/tilcdc: replace reference/unreference() with get/put

[Jyri Sarha]


Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

On 09/26/17 11:30, Aishwarya Pant wrote:
> For maintaining consistency with kernel coding style replace
> reference/unreference in ref counting functions with get/put.
> 
> The following cocci script was used to generate the tilcdc patch:
> 
> @@
> expression ex;
> @@
> 
> (
> -drm_framebuffer_unreference(ex);
> +drm_framebuffer_put(ex);
> |
> -drm_dev_unref(ex);
> +drm_dev_put(ex);
> |
> -drm_framebuffer_reference(ex);
> +drm_framebuffer_get(ex);
> )
> 
> Signed-off-by: Aishwarya Pant <aishpant@gmail.com>

Acked-by: Jyri Sarha <jsarha@ti.com>

I guess this should go in via drm-misc at the same time with
"drm: introduce drm_dev_{get/put} functions".

Best regards,
Jyri


> ---
> No changes in v2
> 
> drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 6 +++---
>  drivers/gpu/drm/tilcdc/tilcdc_drv.c  | 2 +-
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> index 406fe45..d2589f310 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> @@ -75,7 +75,7 @@ static void unref_worker(struct drm_flip_work *work, void *val)
>  	struct drm_device *dev = tilcdc_crtc->base.dev;
>  
>  	mutex_lock(&dev->mode_config.mutex);
> -	drm_framebuffer_unreference(val);
> +	drm_framebuffer_put(val);
>  	mutex_unlock(&dev->mode_config.mutex);
>  }
>  
> @@ -456,7 +456,7 @@ static void tilcdc_crtc_set_mode(struct drm_crtc *crtc)
>  
>  	set_scanout(crtc, fb);
>  
> -	drm_framebuffer_reference(fb);
> +	drm_framebuffer_get(fb);
>  
>  	crtc->hwmode = crtc->state->adjusted_mode;
>  }
> @@ -633,7 +633,7 @@ int tilcdc_crtc_update_fb(struct drm_crtc *crtc,
>  		return -EBUSY;
>  	}
>  
> -	drm_framebuffer_reference(fb);
> +	drm_framebuffer_get(fb);
>  
>  	crtc->primary->fb = fb;
>  	tilcdc_crtc->event = event;
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> index b0d70f9..74276ef 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> @@ -225,7 +225,7 @@ static void tilcdc_fini(struct drm_device *dev)
>  
>  	pm_runtime_disable(dev->dev);
>  
> -	drm_dev_unref(dev);
> +	drm_dev_put(dev);
>  }
>  
>  static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
> 


_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH v2 2/2] drm/tilcdc: replace reference/unreference() with get/put

[Jyri Sarha]


Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

On 09/26/17 11:30, Aishwarya Pant wrote:
> For maintaining consistency with kernel coding style replace
> reference/unreference in ref counting functions with get/put.
> 
> The following cocci script was used to generate the tilcdc patch:
> 
> @@
> expression ex;
> @@
> 
> (
> -drm_framebuffer_unreference(ex);
> +drm_framebuffer_put(ex);
> |
> -drm_dev_unref(ex);
> +drm_dev_put(ex);
> |
> -drm_framebuffer_reference(ex);
> +drm_framebuffer_get(ex);
> )
> 
> Signed-off-by: Aishwarya Pant <aishpant@gmail.com>

Acked-by: Jyri Sarha <jsarha@ti.com>

I guess this should go in via drm-misc at the same time with
"drm: introduce drm_dev_{get/put} functions".

Best regards,
Jyri


> ---
> No changes in v2
> 
> drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 6 +++---
>  drivers/gpu/drm/tilcdc/tilcdc_drv.c  | 2 +-
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> index 406fe45..d2589f310 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> @@ -75,7 +75,7 @@ static void unref_worker(struct drm_flip_work *work, void *val)
>  	struct drm_device *dev = tilcdc_crtc->base.dev;
>  
>  	mutex_lock(&dev->mode_config.mutex);
> -	drm_framebuffer_unreference(val);
> +	drm_framebuffer_put(val);
>  	mutex_unlock(&dev->mode_config.mutex);
>  }
>  
> @@ -456,7 +456,7 @@ static void tilcdc_crtc_set_mode(struct drm_crtc *crtc)
>  
>  	set_scanout(crtc, fb);
>  
> -	drm_framebuffer_reference(fb);
> +	drm_framebuffer_get(fb);
>  
>  	crtc->hwmode = crtc->state->adjusted_mode;
>  }
> @@ -633,7 +633,7 @@ int tilcdc_crtc_update_fb(struct drm_crtc *crtc,
>  		return -EBUSY;
>  	}
>  
> -	drm_framebuffer_reference(fb);
> +	drm_framebuffer_get(fb);
>  
>  	crtc->primary->fb = fb;
>  	tilcdc_crtc->event = event;
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> index b0d70f9..74276ef 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> @@ -225,7 +225,7 @@ static void tilcdc_fini(struct drm_device *dev)
>  
>  	pm_runtime_disable(dev->dev);
>  
> -	drm_dev_unref(dev);
> +	drm_dev_put(dev);
>  }
>  
>  static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
> 

Re: [PATCH v2 2/2] drm/tilcdc: replace reference/unreference() with get/put

[Daniel Vetter]

On Tue, Sep 26, 2017 at 12:18:06PM +0300, Jyri Sarha wrote:
> 
> Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
> 
> On 09/26/17 11:30, Aishwarya Pant wrote:
> > For maintaining consistency with kernel coding style replace
> > reference/unreference in ref counting functions with get/put.
> > 
> > The following cocci script was used to generate the tilcdc patch:
> > 
> > @@
> > expression ex;
> > @@
> > 
> > (
> > -drm_framebuffer_unreference(ex);
> > +drm_framebuffer_put(ex);
> > |
> > -drm_dev_unref(ex);
> > +drm_dev_put(ex);
> > |
> > -drm_framebuffer_reference(ex);
> > +drm_framebuffer_get(ex);
> > )
> > 
> > Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
> 
> Acked-by: Jyri Sarha <jsarha@ti.com>
> 
> I guess this should go in via drm-misc at the same time with
> "drm: introduce drm_dev_{get/put} functions".

Yup, this one needs the previous one, both pushed to drm-misc-next.

Aishwarya, while reviewing your patches I've noticed that you've missed to
case of drm_dev_unref() in the drm core code, one in drm_pci.c and one in
drm_prime.c. Can you pls do a follow-up patch to address these two? Fixing
up the core completely is nice, drivers can be done later on (also by
others, this is a prefect newbies tasks). But making sure the core is
consistent is good I think.
-Daniel

> 
> Best regards,
> Jyri
> 
> 
> > ---
> > No changes in v2
> > 
> > drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 6 +++---
> >  drivers/gpu/drm/tilcdc/tilcdc_drv.c  | 2 +-
> >  2 files changed, 4 insertions(+), 4 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> > index 406fe45..d2589f310 100644
> > --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> > +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> > @@ -75,7 +75,7 @@ static void unref_worker(struct drm_flip_work *work, void *val)
> >  	struct drm_device *dev = tilcdc_crtc->base.dev;
> >  
> >  	mutex_lock(&dev->mode_config.mutex);
> > -	drm_framebuffer_unreference(val);
> > +	drm_framebuffer_put(val);
> >  	mutex_unlock(&dev->mode_config.mutex);
> >  }
> >  
> > @@ -456,7 +456,7 @@ static void tilcdc_crtc_set_mode(struct drm_crtc *crtc)
> >  
> >  	set_scanout(crtc, fb);
> >  
> > -	drm_framebuffer_reference(fb);
> > +	drm_framebuffer_get(fb);
> >  
> >  	crtc->hwmode = crtc->state->adjusted_mode;
> >  }
> > @@ -633,7 +633,7 @@ int tilcdc_crtc_update_fb(struct drm_crtc *crtc,
> >  		return -EBUSY;
> >  	}
> >  
> > -	drm_framebuffer_reference(fb);
> > +	drm_framebuffer_get(fb);
> >  
> >  	crtc->primary->fb = fb;
> >  	tilcdc_crtc->event = event;
> > diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> > index b0d70f9..74276ef 100644
> > --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> > +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> > @@ -225,7 +225,7 @@ static void tilcdc_fini(struct drm_device *dev)
> >  
> >  	pm_runtime_disable(dev->dev);
> >  
> > -	drm_dev_unref(dev);
> > +	drm_dev_put(dev);
> >  }
> >  
> >  static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
> > 
> 
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH v2 2/2] drm/tilcdc: replace reference/unreference() with get/put

[Daniel Vetter]

On Tue, Sep 26, 2017 at 12:18:06PM +0300, Jyri Sarha wrote:
> 
> Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
> 
> On 09/26/17 11:30, Aishwarya Pant wrote:
> > For maintaining consistency with kernel coding style replace
> > reference/unreference in ref counting functions with get/put.
> > 
> > The following cocci script was used to generate the tilcdc patch:
> > 
> > @@
> > expression ex;
> > @@
> > 
> > (
> > -drm_framebuffer_unreference(ex);
> > +drm_framebuffer_put(ex);
> > |
> > -drm_dev_unref(ex);
> > +drm_dev_put(ex);
> > |
> > -drm_framebuffer_reference(ex);
> > +drm_framebuffer_get(ex);
> > )
> > 
> > Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
> 
> Acked-by: Jyri Sarha <jsarha@ti.com>
> 
> I guess this should go in via drm-misc at the same time with
> "drm: introduce drm_dev_{get/put} functions".

Yup, this one needs the previous one, both pushed to drm-misc-next.

Aishwarya, while reviewing your patches I've noticed that you've missed to
case of drm_dev_unref() in the drm core code, one in drm_pci.c and one in
drm_prime.c. Can you pls do a follow-up patch to address these two? Fixing
up the core completely is nice, drivers can be done later on (also by
others, this is a prefect newbies tasks). But making sure the core is
consistent is good I think.
-Daniel

> 
> Best regards,
> Jyri
> 
> 
> > ---
> > No changes in v2
> > 
> > drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 6 +++---
> >  drivers/gpu/drm/tilcdc/tilcdc_drv.c  | 2 +-
> >  2 files changed, 4 insertions(+), 4 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> > index 406fe45..d2589f310 100644
> > --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> > +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
> > @@ -75,7 +75,7 @@ static void unref_worker(struct drm_flip_work *work, void *val)
> >  	struct drm_device *dev = tilcdc_crtc->base.dev;
> >  
> >  	mutex_lock(&dev->mode_config.mutex);
> > -	drm_framebuffer_unreference(val);
> > +	drm_framebuffer_put(val);
> >  	mutex_unlock(&dev->mode_config.mutex);
> >  }
> >  
> > @@ -456,7 +456,7 @@ static void tilcdc_crtc_set_mode(struct drm_crtc *crtc)
> >  
> >  	set_scanout(crtc, fb);
> >  
> > -	drm_framebuffer_reference(fb);
> > +	drm_framebuffer_get(fb);
> >  
> >  	crtc->hwmode = crtc->state->adjusted_mode;
> >  }
> > @@ -633,7 +633,7 @@ int tilcdc_crtc_update_fb(struct drm_crtc *crtc,
> >  		return -EBUSY;
> >  	}
> >  
> > -	drm_framebuffer_reference(fb);
> > +	drm_framebuffer_get(fb);
> >  
> >  	crtc->primary->fb = fb;
> >  	tilcdc_crtc->event = event;
> > diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> > index b0d70f9..74276ef 100644
> > --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> > +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> > @@ -225,7 +225,7 @@ static void tilcdc_fini(struct drm_device *dev)
> >  
> >  	pm_runtime_disable(dev->dev);
> >  
> > -	drm_dev_unref(dev);
> > +	drm_dev_put(dev);
> >  }
> >  
> >  static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
> > 
> 
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch