[PATCH] drm: Fix kerneldoc for "Returns" section

renjun wang posted 1 patch 1 year, 3 months ago
drivers/gpu/drm/display/drm_dp_mst_topology.c | 4 ----
drivers/gpu/drm/drm_atomic.c                  | 6 ------
drivers/gpu/drm/drm_atomic_helper.c           | 2 --
drivers/gpu/drm/drm_file.c                    | 7 -------
drivers/gpu/drm/drm_gem.c                     | 7 ++-----
drivers/gpu/drm/drm_modes.c                   | 1 -
drivers/gpu/drm/drm_rect.c                    | 1 -
drivers/gpu/drm/drm_vblank.c                  | 2 --
drivers/gpu/drm/i915/gem/i915_gem_object.h    | 1 -
drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c  | 1 -
drivers/gpu/drm/i915/i915_vma.h               | 1 -
11 files changed, 2 insertions(+), 31 deletions(-)
[PATCH] drm: Fix kerneldoc for "Returns" section
Posted by renjun wang 1 year, 3 months ago
The blank line between title "Returns:" and detail description is not
allowed, otherwise the title will goes under the description block in
generated .html file after running `make htmldocs`.

There are a few examples for current kerneldoc:
https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#c.drm_crtc_commit_wait
https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#c.drm_atomic_get_crtc_state
https://www.kernel.org/doc/html/latest/gpu/i915.html#c.i915_vma_pin_fence

Signed-off-by: renjun wang <renjunw0@foxmail.com>
---
 drivers/gpu/drm/display/drm_dp_mst_topology.c | 4 ----
 drivers/gpu/drm/drm_atomic.c                  | 6 ------
 drivers/gpu/drm/drm_atomic_helper.c           | 2 --
 drivers/gpu/drm/drm_file.c                    | 7 -------
 drivers/gpu/drm/drm_gem.c                     | 7 ++-----
 drivers/gpu/drm/drm_modes.c                   | 1 -
 drivers/gpu/drm/drm_rect.c                    | 1 -
 drivers/gpu/drm/drm_vblank.c                  | 2 --
 drivers/gpu/drm/i915/gem/i915_gem_object.h    | 1 -
 drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c  | 1 -
 drivers/gpu/drm/i915/i915_vma.h               | 1 -
 11 files changed, 2 insertions(+), 31 deletions(-)

diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c
index fc2ceae61db2..e68d23997d53 100644
--- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
@@ -5569,7 +5569,6 @@ EXPORT_SYMBOL(drm_dp_mst_atomic_check_mgr);
  * drm_dp_atomic_release_time_slots()
  *
  * Returns:
- *
  * 0 if the new state is valid, negative error code otherwise.
  */
 int drm_dp_mst_atomic_check(struct drm_atomic_state *state)
@@ -5606,7 +5605,6 @@ EXPORT_SYMBOL(drm_dp_mst_topology_state_funcs);
  * topology object.
  *
  * RETURNS:
- *
  * The MST topology state or error pointer.
  */
 struct drm_dp_mst_topology_state *drm_atomic_get_mst_topology_state(struct drm_atomic_state *state,
@@ -5626,7 +5624,6 @@ EXPORT_SYMBOL(drm_atomic_get_mst_topology_state);
  * topology object.
  *
  * Returns:
- *
  * The old MST topology state, or NULL if there's no topology state for this MST mgr
  * in the global atomic state
  */
@@ -5651,7 +5648,6 @@ EXPORT_SYMBOL(drm_atomic_get_old_mst_topology_state);
  * topology object.
  *
  * Returns:
- *
  * The new MST topology state, or NULL if there's no topology state for this MST mgr
  * in the global atomic state
  */
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 6e516c39a372..0fc99da93afe 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -63,7 +63,6 @@ EXPORT_SYMBOL(__drm_crtc_commit_free);
  * hardware and flipped to.
  *
  * Returns:
- *
  * 0 on success, a negative error code otherwise.
  */
 int drm_crtc_commit_wait(struct drm_crtc_commit *commit)
@@ -337,7 +336,6 @@ EXPORT_SYMBOL(__drm_atomic_state_free);
  * not created by userspace through an IOCTL call.
  *
  * Returns:
- *
  * Either the allocated state or the error code encoded into the pointer. When
  * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
  * entire atomic sequence must be restarted. All other errors are fatal.
@@ -518,7 +516,6 @@ static int drm_atomic_connector_check(struct drm_connector *connector,
  * is consistent.
  *
  * Returns:
- *
  * Either the allocated state or the error code encoded into the pointer. When
  * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
  * entire atomic sequence must be restarted. All other errors are fatal.
@@ -828,7 +825,6 @@ EXPORT_SYMBOL(drm_atomic_private_obj_fini);
  * object lock to make sure that the state is consistent.
  *
  * RETURNS:
- *
  * Either the allocated state or the error code encoded into a pointer.
  */
 struct drm_private_state *
@@ -1061,7 +1057,6 @@ EXPORT_SYMBOL(drm_atomic_get_new_crtc_for_encoder);
  * make sure that the state is consistent.
  *
  * Returns:
- *
  * Either the allocated state or the error code encoded into the pointer. When
  * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
  * entire atomic sequence must be restarted. All other errors are fatal.
@@ -1169,7 +1164,6 @@ static void drm_atomic_connector_print_state(struct drm_printer *p,
  * state is consistent.
  *
  * Returns:
- *
  * Either the allocated state or the error code encoded into the pointer. When
  * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
  * entire atomic sequence must be restarted.
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index fb97b51b38f1..43cdf39019a4 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -2266,7 +2266,6 @@ crtc_or_fake_commit(struct drm_atomic_state *state, struct drm_crtc *crtc)
  * automatically.
  *
  * Returns:
- *
  * 0 on success. -EBUSY when userspace schedules nonblocking commits too fast,
  * -ENOMEM on allocation failures and -EINTR when a signal is pending.
  */
@@ -3009,7 +3008,6 @@ EXPORT_SYMBOL(drm_atomic_helper_cleanup_planes);
  * don't pass the right state structures to the callbacks.
  *
  * Returns:
- *
  * Returns 0 on success. Can return -ERESTARTSYS when @stall is true and the
  * waiting for the previous commits has been interrupted.
  */
diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c
index 714e42b05108..7beed6902208 100644
--- a/drivers/gpu/drm/drm_file.c
+++ b/drivers/gpu/drm/drm_file.c
@@ -355,7 +355,6 @@ int drm_open_helper(struct file *filp, struct drm_minor *minor)
  * resources for it. It also calls the &drm_driver.open driver callback.
  *
  * RETURNS:
- *
  * 0 on success or negative errno value on failure.
  */
 int drm_open(struct inode *inode, struct file *filp)
@@ -417,7 +416,6 @@ void drm_lastclose(struct drm_device * dev)
  * DRM device also proceeds to call the &drm_driver.lastclose driver callback.
  *
  * RETURNS:
- *
  * Always succeeds and returns 0.
  */
 int drm_release(struct inode *inode, struct file *filp)
@@ -489,7 +487,6 @@ void drm_file_update_pid(struct drm_file *filp)
  * call the &drm_driver.lastclose driver callback.
  *
  * RETURNS:
- *
  * Always succeeds and returns 0.
  */
 int drm_release_noglobal(struct inode *inode, struct file *filp)
@@ -532,7 +529,6 @@ EXPORT_SYMBOL(drm_release_noglobal);
  * safety.
  *
  * RETURNS:
- *
  * Number of bytes read (always aligned to full events, and can be 0) or a
  * negative error code on failure.
  */
@@ -618,7 +614,6 @@ EXPORT_SYMBOL(drm_read);
  * See also drm_read().
  *
  * RETURNS:
- *
  * Mask of POLL flags indicating the current status of the file.
  */
 __poll_t drm_poll(struct file *filp, struct poll_table_struct *wait)
@@ -656,7 +651,6 @@ EXPORT_SYMBOL(drm_poll);
  * already hold &drm_device.event_lock.
  *
  * RETURNS:
- *
  * 0 on success or a negative error code on failure.
  */
 int drm_event_reserve_init_locked(struct drm_device *dev,
@@ -698,7 +692,6 @@ EXPORT_SYMBOL(drm_event_reserve_init_locked);
  * drm_event_reserve_init_locked() instead.
  *
  * RETURNS:
- *
  * 0 on success or a negative error code on failure.
  */
 int drm_event_reserve_init(struct drm_device *dev,
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index d4bbc5d109c8..149b8e25da5b 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -689,7 +689,6 @@ static int objects_lookup(struct drm_file *filp, u32 *handle, int count,
  * For a single handle lookup, use drm_gem_object_lookup().
  *
  * Returns:
- *
  * @objs filled in with GEM object pointers. Returned GEM objects need to be
  * released with drm_gem_object_put(). -ENOENT is returned on a lookup
  * failure. 0 is returned on success.
@@ -737,12 +736,11 @@ EXPORT_SYMBOL(drm_gem_objects_lookup);
  * @filp: DRM file private date
  * @handle: userspace handle
  *
- * Returns:
+ * If looking up an array of handles, use drm_gem_objects_lookup().
  *
+ * Returns:
  * A reference to the object named by the handle if such exists on @filp, NULL
  * otherwise.
- *
- * If looking up an array of handles, use drm_gem_objects_lookup().
  */
 struct drm_gem_object *
 drm_gem_object_lookup(struct drm_file *filp, u32 handle)
@@ -763,7 +761,6 @@ EXPORT_SYMBOL(drm_gem_object_lookup);
  * @timeout: timeout value in jiffies or zero to return immediately
  *
  * Returns:
- *
  * Returns -ERESTARTSYS if interrupted, 0 if the wait timed out, or
  * greater than 0 on success.
  */
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 1a0890083aee..6ba167a33461 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -539,7 +539,6 @@ static int fill_analog_mode(struct drm_device *dev,
  * to reach those resolutions.
  *
  * Returns:
- *
  * A pointer to the mode, allocated with drm_mode_create(). Returns NULL
  * on error.
  */
diff --git a/drivers/gpu/drm/drm_rect.c b/drivers/gpu/drm/drm_rect.c
index 85c79a38c13a..492acce0516f 100644
--- a/drivers/gpu/drm/drm_rect.c
+++ b/drivers/gpu/drm/drm_rect.c
@@ -85,7 +85,6 @@ static u32 clip_scaled(int src, int dst, int *clip)
  * factors from @src to @dst.
  *
  * RETURNS:
- *
  * %true if rectangle @dst is still visible after being clipped,
  * %false otherwise.
  */
diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
index cc3571e25a9a..6428b7975dd6 100644
--- a/drivers/gpu/drm/drm_vblank.c
+++ b/drivers/gpu/drm/drm_vblank.c
@@ -686,7 +686,6 @@ EXPORT_SYMBOL(drm_calc_timestamping_constants);
  * drm_atomic_helper_calc_timestamping_constants().
  *
  * Returns:
- *
  * Returns true on success, and false on failure, i.e. when no accurate
  * timestamp could be acquired.
  */
@@ -831,7 +830,6 @@ EXPORT_SYMBOL(drm_crtc_vblank_helper_get_vblank_timestamp_internal);
  * drm_atomic_helper_calc_timestamping_constants().
  *
  * Returns:
- *
  * Returns true on success, and false on failure, i.e. when no accurate
  * timestamp could be acquired.
  */
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h b/drivers/gpu/drm/i915/gem/i915_gem_object.h
index 5d7446a48ae7..3dc61cbd2e11 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h
@@ -89,7 +89,6 @@ __i915_gem_object_unset_pages(struct drm_i915_gem_object *obj);
  * @handle: userspace handle
  *
  * Returns:
- *
  * A pointer to the object named by the handle if such exists on @filp, NULL
  * otherwise. This object is only valid whilst under the RCU read lock, and
  * note carefully the object may be in the process of being destroyed.
diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
index 93bc1cc1ee7e..0ffba50981e3 100644
--- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
+++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
@@ -418,7 +418,6 @@ int __i915_vma_pin_fence(struct i915_vma *vma)
  * For an untiled surface, this removes any existing fence.
  *
  * Returns:
- *
  * 0 on success, negative error code on failure.
  */
 int i915_vma_pin_fence(struct i915_vma *vma)
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
index e356dfb883d3..6a6be8048aa8 100644
--- a/drivers/gpu/drm/i915/i915_vma.h
+++ b/drivers/gpu/drm/i915/i915_vma.h
@@ -389,7 +389,6 @@ void i915_vma_unpin_iomap(struct i915_vma *vma);
  * i915_vma_unpin_fence().
  *
  * Returns:
- *
  * True if the vma has a fence, false otherwise.
  */
 int __must_check i915_vma_pin_fence(struct i915_vma *vma);
-- 
2.39.2
Re: [PATCH] drm: Fix kerneldoc for "Returns" section
Posted by Andi Shyti 1 year, 3 months ago
Hi Renjun,

On Sat, Aug 24, 2024 at 04:36:34PM +0800, renjun wang wrote:
> The blank line between title "Returns:" and detail description is not
> allowed, otherwise the title will goes under the description block in
> generated .html file after running `make htmldocs`.
> 
> There are a few examples for current kerneldoc:
> https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#c.drm_crtc_commit_wait
> https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#c.drm_atomic_get_crtc_state
> https://www.kernel.org/doc/html/latest/gpu/i915.html#c.i915_vma_pin_fence
> 
> Signed-off-by: renjun wang <renjunw0@foxmail.com>
> ---
>  drivers/gpu/drm/display/drm_dp_mst_topology.c | 4 ----
>  drivers/gpu/drm/drm_atomic.c                  | 6 ------
>  drivers/gpu/drm/drm_atomic_helper.c           | 2 --
>  drivers/gpu/drm/drm_file.c                    | 7 -------
>  drivers/gpu/drm/drm_gem.c                     | 7 ++-----
>  drivers/gpu/drm/drm_modes.c                   | 1 -
>  drivers/gpu/drm/drm_rect.c                    | 1 -
>  drivers/gpu/drm/drm_vblank.c                  | 2 --
>  drivers/gpu/drm/i915/gem/i915_gem_object.h    | 1 -
>  drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c  | 1 -
>  drivers/gpu/drm/i915/i915_vma.h               | 1 -
>  11 files changed, 2 insertions(+), 31 deletions(-)

next time, please, split the series so that each component goes
to the right branch.

Andi
Re: [PATCH] drm: Fix kerneldoc for "Returns" section
Posted by Thomas Zimmermann 1 year, 3 months ago
Hi

Am 27.08.24 um 00:11 schrieb Andi Shyti:
> Hi Renjun,
>
> On Sat, Aug 24, 2024 at 04:36:34PM +0800, renjun wang wrote:
>> The blank line between title "Returns:" and detail description is not
>> allowed, otherwise the title will goes under the description block in
>> generated .html file after running `make htmldocs`.
>>
>> There are a few examples for current kerneldoc:
>> https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#c.drm_crtc_commit_wait
>> https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#c.drm_atomic_get_crtc_state
>> https://www.kernel.org/doc/html/latest/gpu/i915.html#c.i915_vma_pin_fence
>>
>> Signed-off-by: renjun wang <renjunw0@foxmail.com>
>> ---
>>   drivers/gpu/drm/display/drm_dp_mst_topology.c | 4 ----
>>   drivers/gpu/drm/drm_atomic.c                  | 6 ------
>>   drivers/gpu/drm/drm_atomic_helper.c           | 2 --
>>   drivers/gpu/drm/drm_file.c                    | 7 -------
>>   drivers/gpu/drm/drm_gem.c                     | 7 ++-----
>>   drivers/gpu/drm/drm_modes.c                   | 1 -
>>   drivers/gpu/drm/drm_rect.c                    | 1 -
>>   drivers/gpu/drm/drm_vblank.c                  | 2 --
>>   drivers/gpu/drm/i915/gem/i915_gem_object.h    | 1 -
>>   drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c  | 1 -
>>   drivers/gpu/drm/i915/i915_vma.h               | 1 -
>>   11 files changed, 2 insertions(+), 31 deletions(-)
> next time, please, split the series so that each component goes
> to the right branch.

My fault. Apologies if I crossed a line by just merging it into 
drm-misc. It's just doc syntax, so I didn't think it was a big deal.

Best regards
Thomas

>
> Andi

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
Re: [PATCH] drm: Fix kerneldoc for "Returns" section
Posted by Jani Nikula 1 year, 3 months ago
On Tue, 27 Aug 2024, Thomas Zimmermann <tzimmermann@suse.de> wrote:
> My fault. Apologies if I crossed a line by just merging it into 
> drm-misc. It's just doc syntax, so I didn't think it was a big deal.

No worries, retrospective ack.

BR,
Jani.

-- 
Jani Nikula, Intel
Re: [PATCH] drm: Fix kerneldoc for "Returns" section
Posted by Thomas Zimmermann 1 year, 3 months ago

Am 24.08.24 um 10:36 schrieb renjun wang:
> The blank line between title "Returns:" and detail description is not
> allowed, otherwise the title will goes under the description block in
> generated .html file after running `make htmldocs`.
>
> There are a few examples for current kerneldoc:
> https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#c.drm_crtc_commit_wait
> https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#c.drm_atomic_get_crtc_state
> https://www.kernel.org/doc/html/latest/gpu/i915.html#c.i915_vma_pin_fence
>
> Signed-off-by: renjun wang <renjunw0@foxmail.com>

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>

I'll add this patch and the other doc fix to the drm-misc tree. Thanks a 
lot for the fixes.

Best regards
Thomas

> ---
>   drivers/gpu/drm/display/drm_dp_mst_topology.c | 4 ----
>   drivers/gpu/drm/drm_atomic.c                  | 6 ------
>   drivers/gpu/drm/drm_atomic_helper.c           | 2 --
>   drivers/gpu/drm/drm_file.c                    | 7 -------
>   drivers/gpu/drm/drm_gem.c                     | 7 ++-----
>   drivers/gpu/drm/drm_modes.c                   | 1 -
>   drivers/gpu/drm/drm_rect.c                    | 1 -
>   drivers/gpu/drm/drm_vblank.c                  | 2 --
>   drivers/gpu/drm/i915/gem/i915_gem_object.h    | 1 -
>   drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c  | 1 -
>   drivers/gpu/drm/i915/i915_vma.h               | 1 -
>   11 files changed, 2 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c
> index fc2ceae61db2..e68d23997d53 100644
> --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
> @@ -5569,7 +5569,6 @@ EXPORT_SYMBOL(drm_dp_mst_atomic_check_mgr);
>    * drm_dp_atomic_release_time_slots()
>    *
>    * Returns:
> - *
>    * 0 if the new state is valid, negative error code otherwise.
>    */
>   int drm_dp_mst_atomic_check(struct drm_atomic_state *state)
> @@ -5606,7 +5605,6 @@ EXPORT_SYMBOL(drm_dp_mst_topology_state_funcs);
>    * topology object.
>    *
>    * RETURNS:
> - *
>    * The MST topology state or error pointer.
>    */
>   struct drm_dp_mst_topology_state *drm_atomic_get_mst_topology_state(struct drm_atomic_state *state,
> @@ -5626,7 +5624,6 @@ EXPORT_SYMBOL(drm_atomic_get_mst_topology_state);
>    * topology object.
>    *
>    * Returns:
> - *
>    * The old MST topology state, or NULL if there's no topology state for this MST mgr
>    * in the global atomic state
>    */
> @@ -5651,7 +5648,6 @@ EXPORT_SYMBOL(drm_atomic_get_old_mst_topology_state);
>    * topology object.
>    *
>    * Returns:
> - *
>    * The new MST topology state, or NULL if there's no topology state for this MST mgr
>    * in the global atomic state
>    */
> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> index 6e516c39a372..0fc99da93afe 100644
> --- a/drivers/gpu/drm/drm_atomic.c
> +++ b/drivers/gpu/drm/drm_atomic.c
> @@ -63,7 +63,6 @@ EXPORT_SYMBOL(__drm_crtc_commit_free);
>    * hardware and flipped to.
>    *
>    * Returns:
> - *
>    * 0 on success, a negative error code otherwise.
>    */
>   int drm_crtc_commit_wait(struct drm_crtc_commit *commit)
> @@ -337,7 +336,6 @@ EXPORT_SYMBOL(__drm_atomic_state_free);
>    * not created by userspace through an IOCTL call.
>    *
>    * Returns:
> - *
>    * Either the allocated state or the error code encoded into the pointer. When
>    * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
>    * entire atomic sequence must be restarted. All other errors are fatal.
> @@ -518,7 +516,6 @@ static int drm_atomic_connector_check(struct drm_connector *connector,
>    * is consistent.
>    *
>    * Returns:
> - *
>    * Either the allocated state or the error code encoded into the pointer. When
>    * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
>    * entire atomic sequence must be restarted. All other errors are fatal.
> @@ -828,7 +825,6 @@ EXPORT_SYMBOL(drm_atomic_private_obj_fini);
>    * object lock to make sure that the state is consistent.
>    *
>    * RETURNS:
> - *
>    * Either the allocated state or the error code encoded into a pointer.
>    */
>   struct drm_private_state *
> @@ -1061,7 +1057,6 @@ EXPORT_SYMBOL(drm_atomic_get_new_crtc_for_encoder);
>    * make sure that the state is consistent.
>    *
>    * Returns:
> - *
>    * Either the allocated state or the error code encoded into the pointer. When
>    * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
>    * entire atomic sequence must be restarted. All other errors are fatal.
> @@ -1169,7 +1164,6 @@ static void drm_atomic_connector_print_state(struct drm_printer *p,
>    * state is consistent.
>    *
>    * Returns:
> - *
>    * Either the allocated state or the error code encoded into the pointer. When
>    * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
>    * entire atomic sequence must be restarted.
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index fb97b51b38f1..43cdf39019a4 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -2266,7 +2266,6 @@ crtc_or_fake_commit(struct drm_atomic_state *state, struct drm_crtc *crtc)
>    * automatically.
>    *
>    * Returns:
> - *
>    * 0 on success. -EBUSY when userspace schedules nonblocking commits too fast,
>    * -ENOMEM on allocation failures and -EINTR when a signal is pending.
>    */
> @@ -3009,7 +3008,6 @@ EXPORT_SYMBOL(drm_atomic_helper_cleanup_planes);
>    * don't pass the right state structures to the callbacks.
>    *
>    * Returns:
> - *
>    * Returns 0 on success. Can return -ERESTARTSYS when @stall is true and the
>    * waiting for the previous commits has been interrupted.
>    */
> diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c
> index 714e42b05108..7beed6902208 100644
> --- a/drivers/gpu/drm/drm_file.c
> +++ b/drivers/gpu/drm/drm_file.c
> @@ -355,7 +355,6 @@ int drm_open_helper(struct file *filp, struct drm_minor *minor)
>    * resources for it. It also calls the &drm_driver.open driver callback.
>    *
>    * RETURNS:
> - *
>    * 0 on success or negative errno value on failure.
>    */
>   int drm_open(struct inode *inode, struct file *filp)
> @@ -417,7 +416,6 @@ void drm_lastclose(struct drm_device * dev)
>    * DRM device also proceeds to call the &drm_driver.lastclose driver callback.
>    *
>    * RETURNS:
> - *
>    * Always succeeds and returns 0.
>    */
>   int drm_release(struct inode *inode, struct file *filp)
> @@ -489,7 +487,6 @@ void drm_file_update_pid(struct drm_file *filp)
>    * call the &drm_driver.lastclose driver callback.
>    *
>    * RETURNS:
> - *
>    * Always succeeds and returns 0.
>    */
>   int drm_release_noglobal(struct inode *inode, struct file *filp)
> @@ -532,7 +529,6 @@ EXPORT_SYMBOL(drm_release_noglobal);
>    * safety.
>    *
>    * RETURNS:
> - *
>    * Number of bytes read (always aligned to full events, and can be 0) or a
>    * negative error code on failure.
>    */
> @@ -618,7 +614,6 @@ EXPORT_SYMBOL(drm_read);
>    * See also drm_read().
>    *
>    * RETURNS:
> - *
>    * Mask of POLL flags indicating the current status of the file.
>    */
>   __poll_t drm_poll(struct file *filp, struct poll_table_struct *wait)
> @@ -656,7 +651,6 @@ EXPORT_SYMBOL(drm_poll);
>    * already hold &drm_device.event_lock.
>    *
>    * RETURNS:
> - *
>    * 0 on success or a negative error code on failure.
>    */
>   int drm_event_reserve_init_locked(struct drm_device *dev,
> @@ -698,7 +692,6 @@ EXPORT_SYMBOL(drm_event_reserve_init_locked);
>    * drm_event_reserve_init_locked() instead.
>    *
>    * RETURNS:
> - *
>    * 0 on success or a negative error code on failure.
>    */
>   int drm_event_reserve_init(struct drm_device *dev,
> diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
> index d4bbc5d109c8..149b8e25da5b 100644
> --- a/drivers/gpu/drm/drm_gem.c
> +++ b/drivers/gpu/drm/drm_gem.c
> @@ -689,7 +689,6 @@ static int objects_lookup(struct drm_file *filp, u32 *handle, int count,
>    * For a single handle lookup, use drm_gem_object_lookup().
>    *
>    * Returns:
> - *
>    * @objs filled in with GEM object pointers. Returned GEM objects need to be
>    * released with drm_gem_object_put(). -ENOENT is returned on a lookup
>    * failure. 0 is returned on success.
> @@ -737,12 +736,11 @@ EXPORT_SYMBOL(drm_gem_objects_lookup);
>    * @filp: DRM file private date
>    * @handle: userspace handle
>    *
> - * Returns:
> + * If looking up an array of handles, use drm_gem_objects_lookup().
>    *
> + * Returns:
>    * A reference to the object named by the handle if such exists on @filp, NULL
>    * otherwise.
> - *
> - * If looking up an array of handles, use drm_gem_objects_lookup().
>    */
>   struct drm_gem_object *
>   drm_gem_object_lookup(struct drm_file *filp, u32 handle)
> @@ -763,7 +761,6 @@ EXPORT_SYMBOL(drm_gem_object_lookup);
>    * @timeout: timeout value in jiffies or zero to return immediately
>    *
>    * Returns:
> - *
>    * Returns -ERESTARTSYS if interrupted, 0 if the wait timed out, or
>    * greater than 0 on success.
>    */
> diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
> index 1a0890083aee..6ba167a33461 100644
> --- a/drivers/gpu/drm/drm_modes.c
> +++ b/drivers/gpu/drm/drm_modes.c
> @@ -539,7 +539,6 @@ static int fill_analog_mode(struct drm_device *dev,
>    * to reach those resolutions.
>    *
>    * Returns:
> - *
>    * A pointer to the mode, allocated with drm_mode_create(). Returns NULL
>    * on error.
>    */
> diff --git a/drivers/gpu/drm/drm_rect.c b/drivers/gpu/drm/drm_rect.c
> index 85c79a38c13a..492acce0516f 100644
> --- a/drivers/gpu/drm/drm_rect.c
> +++ b/drivers/gpu/drm/drm_rect.c
> @@ -85,7 +85,6 @@ static u32 clip_scaled(int src, int dst, int *clip)
>    * factors from @src to @dst.
>    *
>    * RETURNS:
> - *
>    * %true if rectangle @dst is still visible after being clipped,
>    * %false otherwise.
>    */
> diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
> index cc3571e25a9a..6428b7975dd6 100644
> --- a/drivers/gpu/drm/drm_vblank.c
> +++ b/drivers/gpu/drm/drm_vblank.c
> @@ -686,7 +686,6 @@ EXPORT_SYMBOL(drm_calc_timestamping_constants);
>    * drm_atomic_helper_calc_timestamping_constants().
>    *
>    * Returns:
> - *
>    * Returns true on success, and false on failure, i.e. when no accurate
>    * timestamp could be acquired.
>    */
> @@ -831,7 +830,6 @@ EXPORT_SYMBOL(drm_crtc_vblank_helper_get_vblank_timestamp_internal);
>    * drm_atomic_helper_calc_timestamping_constants().
>    *
>    * Returns:
> - *
>    * Returns true on success, and false on failure, i.e. when no accurate
>    * timestamp could be acquired.
>    */
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h b/drivers/gpu/drm/i915/gem/i915_gem_object.h
> index 5d7446a48ae7..3dc61cbd2e11 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_object.h
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h
> @@ -89,7 +89,6 @@ __i915_gem_object_unset_pages(struct drm_i915_gem_object *obj);
>    * @handle: userspace handle
>    *
>    * Returns:
> - *
>    * A pointer to the object named by the handle if such exists on @filp, NULL
>    * otherwise. This object is only valid whilst under the RCU read lock, and
>    * note carefully the object may be in the process of being destroyed.
> diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> index 93bc1cc1ee7e..0ffba50981e3 100644
> --- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> +++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> @@ -418,7 +418,6 @@ int __i915_vma_pin_fence(struct i915_vma *vma)
>    * For an untiled surface, this removes any existing fence.
>    *
>    * Returns:
> - *
>    * 0 on success, negative error code on failure.
>    */
>   int i915_vma_pin_fence(struct i915_vma *vma)
> diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
> index e356dfb883d3..6a6be8048aa8 100644
> --- a/drivers/gpu/drm/i915/i915_vma.h
> +++ b/drivers/gpu/drm/i915/i915_vma.h
> @@ -389,7 +389,6 @@ void i915_vma_unpin_iomap(struct i915_vma *vma);
>    * i915_vma_unpin_fence().
>    *
>    * Returns:
> - *
>    * True if the vma has a fence, false otherwise.
>    */
>   int __must_check i915_vma_pin_fence(struct i915_vma *vma);

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
Re: [PATCH] drm: Fix kerneldoc for "Returns" section
Posted by Thomas Zimmermann 1 year, 3 months ago
Hi Renjun

Am 26.08.24 um 16:26 schrieb Thomas Zimmermann:
>
>
> Am 24.08.24 um 10:36 schrieb renjun wang:
>> The blank line between title "Returns:" and detail description is not
>> allowed, otherwise the title will goes under the description block in
>> generated .html file after running `make htmldocs`.
>>
>> There are a few examples for current kerneldoc:
>> https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#c.drm_crtc_commit_wait 
>>
>> https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#c.drm_atomic_get_crtc_state 
>>
>> https://www.kernel.org/doc/html/latest/gpu/i915.html#c.i915_vma_pin_fence 
>>
>>
>> Signed-off-by: renjun wang <renjunw0@foxmail.com>
>
> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
>
> I'll add this patch and the other doc fix to the drm-misc tree. Thanks 
> a lot for the fixes.

I took the liberty to slightly change the commit messages. The links are 
now given in Link tags and point to stable URLs.

Best regards
Thomas

>
> Best regards
> Thomas
>
>> ---
>>   drivers/gpu/drm/display/drm_dp_mst_topology.c | 4 ----
>>   drivers/gpu/drm/drm_atomic.c                  | 6 ------
>>   drivers/gpu/drm/drm_atomic_helper.c           | 2 --
>>   drivers/gpu/drm/drm_file.c                    | 7 -------
>>   drivers/gpu/drm/drm_gem.c                     | 7 ++-----
>>   drivers/gpu/drm/drm_modes.c                   | 1 -
>>   drivers/gpu/drm/drm_rect.c                    | 1 -
>>   drivers/gpu/drm/drm_vblank.c                  | 2 --
>>   drivers/gpu/drm/i915/gem/i915_gem_object.h    | 1 -
>>   drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c  | 1 -
>>   drivers/gpu/drm/i915/i915_vma.h               | 1 -
>>   11 files changed, 2 insertions(+), 31 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c 
>> b/drivers/gpu/drm/display/drm_dp_mst_topology.c
>> index fc2ceae61db2..e68d23997d53 100644
>> --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
>> +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
>> @@ -5569,7 +5569,6 @@ EXPORT_SYMBOL(drm_dp_mst_atomic_check_mgr);
>>    * drm_dp_atomic_release_time_slots()
>>    *
>>    * Returns:
>> - *
>>    * 0 if the new state is valid, negative error code otherwise.
>>    */
>>   int drm_dp_mst_atomic_check(struct drm_atomic_state *state)
>> @@ -5606,7 +5605,6 @@ EXPORT_SYMBOL(drm_dp_mst_topology_state_funcs);
>>    * topology object.
>>    *
>>    * RETURNS:
>> - *
>>    * The MST topology state or error pointer.
>>    */
>>   struct drm_dp_mst_topology_state 
>> *drm_atomic_get_mst_topology_state(struct drm_atomic_state *state,
>> @@ -5626,7 +5624,6 @@ EXPORT_SYMBOL(drm_atomic_get_mst_topology_state);
>>    * topology object.
>>    *
>>    * Returns:
>> - *
>>    * The old MST topology state, or NULL if there's no topology state 
>> for this MST mgr
>>    * in the global atomic state
>>    */
>> @@ -5651,7 +5648,6 @@ 
>> EXPORT_SYMBOL(drm_atomic_get_old_mst_topology_state);
>>    * topology object.
>>    *
>>    * Returns:
>> - *
>>    * The new MST topology state, or NULL if there's no topology state 
>> for this MST mgr
>>    * in the global atomic state
>>    */
>> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
>> index 6e516c39a372..0fc99da93afe 100644
>> --- a/drivers/gpu/drm/drm_atomic.c
>> +++ b/drivers/gpu/drm/drm_atomic.c
>> @@ -63,7 +63,6 @@ EXPORT_SYMBOL(__drm_crtc_commit_free);
>>    * hardware and flipped to.
>>    *
>>    * Returns:
>> - *
>>    * 0 on success, a negative error code otherwise.
>>    */
>>   int drm_crtc_commit_wait(struct drm_crtc_commit *commit)
>> @@ -337,7 +336,6 @@ EXPORT_SYMBOL(__drm_atomic_state_free);
>>    * not created by userspace through an IOCTL call.
>>    *
>>    * Returns:
>> - *
>>    * Either the allocated state or the error code encoded into the 
>> pointer. When
>>    * the error is EDEADLK then the w/w mutex code has detected a 
>> deadlock and the
>>    * entire atomic sequence must be restarted. All other errors are 
>> fatal.
>> @@ -518,7 +516,6 @@ static int drm_atomic_connector_check(struct 
>> drm_connector *connector,
>>    * is consistent.
>>    *
>>    * Returns:
>> - *
>>    * Either the allocated state or the error code encoded into the 
>> pointer. When
>>    * the error is EDEADLK then the w/w mutex code has detected a 
>> deadlock and the
>>    * entire atomic sequence must be restarted. All other errors are 
>> fatal.
>> @@ -828,7 +825,6 @@ EXPORT_SYMBOL(drm_atomic_private_obj_fini);
>>    * object lock to make sure that the state is consistent.
>>    *
>>    * RETURNS:
>> - *
>>    * Either the allocated state or the error code encoded into a 
>> pointer.
>>    */
>>   struct drm_private_state *
>> @@ -1061,7 +1057,6 @@ 
>> EXPORT_SYMBOL(drm_atomic_get_new_crtc_for_encoder);
>>    * make sure that the state is consistent.
>>    *
>>    * Returns:
>> - *
>>    * Either the allocated state or the error code encoded into the 
>> pointer. When
>>    * the error is EDEADLK then the w/w mutex code has detected a 
>> deadlock and the
>>    * entire atomic sequence must be restarted. All other errors are 
>> fatal.
>> @@ -1169,7 +1164,6 @@ static void 
>> drm_atomic_connector_print_state(struct drm_printer *p,
>>    * state is consistent.
>>    *
>>    * Returns:
>> - *
>>    * Either the allocated state or the error code encoded into the 
>> pointer. When
>>    * the error is EDEADLK then the w/w mutex code has detected a 
>> deadlock and the
>>    * entire atomic sequence must be restarted.
>> diff --git a/drivers/gpu/drm/drm_atomic_helper.c 
>> b/drivers/gpu/drm/drm_atomic_helper.c
>> index fb97b51b38f1..43cdf39019a4 100644
>> --- a/drivers/gpu/drm/drm_atomic_helper.c
>> +++ b/drivers/gpu/drm/drm_atomic_helper.c
>> @@ -2266,7 +2266,6 @@ crtc_or_fake_commit(struct drm_atomic_state 
>> *state, struct drm_crtc *crtc)
>>    * automatically.
>>    *
>>    * Returns:
>> - *
>>    * 0 on success. -EBUSY when userspace schedules nonblocking 
>> commits too fast,
>>    * -ENOMEM on allocation failures and -EINTR when a signal is pending.
>>    */
>> @@ -3009,7 +3008,6 @@ EXPORT_SYMBOL(drm_atomic_helper_cleanup_planes);
>>    * don't pass the right state structures to the callbacks.
>>    *
>>    * Returns:
>> - *
>>    * Returns 0 on success. Can return -ERESTARTSYS when @stall is 
>> true and the
>>    * waiting for the previous commits has been interrupted.
>>    */
>> diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c
>> index 714e42b05108..7beed6902208 100644
>> --- a/drivers/gpu/drm/drm_file.c
>> +++ b/drivers/gpu/drm/drm_file.c
>> @@ -355,7 +355,6 @@ int drm_open_helper(struct file *filp, struct 
>> drm_minor *minor)
>>    * resources for it. It also calls the &drm_driver.open driver 
>> callback.
>>    *
>>    * RETURNS:
>> - *
>>    * 0 on success or negative errno value on failure.
>>    */
>>   int drm_open(struct inode *inode, struct file *filp)
>> @@ -417,7 +416,6 @@ void drm_lastclose(struct drm_device * dev)
>>    * DRM device also proceeds to call the &drm_driver.lastclose 
>> driver callback.
>>    *
>>    * RETURNS:
>> - *
>>    * Always succeeds and returns 0.
>>    */
>>   int drm_release(struct inode *inode, struct file *filp)
>> @@ -489,7 +487,6 @@ void drm_file_update_pid(struct drm_file *filp)
>>    * call the &drm_driver.lastclose driver callback.
>>    *
>>    * RETURNS:
>> - *
>>    * Always succeeds and returns 0.
>>    */
>>   int drm_release_noglobal(struct inode *inode, struct file *filp)
>> @@ -532,7 +529,6 @@ EXPORT_SYMBOL(drm_release_noglobal);
>>    * safety.
>>    *
>>    * RETURNS:
>> - *
>>    * Number of bytes read (always aligned to full events, and can be 
>> 0) or a
>>    * negative error code on failure.
>>    */
>> @@ -618,7 +614,6 @@ EXPORT_SYMBOL(drm_read);
>>    * See also drm_read().
>>    *
>>    * RETURNS:
>> - *
>>    * Mask of POLL flags indicating the current status of the file.
>>    */
>>   __poll_t drm_poll(struct file *filp, struct poll_table_struct *wait)
>> @@ -656,7 +651,6 @@ EXPORT_SYMBOL(drm_poll);
>>    * already hold &drm_device.event_lock.
>>    *
>>    * RETURNS:
>> - *
>>    * 0 on success or a negative error code on failure.
>>    */
>>   int drm_event_reserve_init_locked(struct drm_device *dev,
>> @@ -698,7 +692,6 @@ EXPORT_SYMBOL(drm_event_reserve_init_locked);
>>    * drm_event_reserve_init_locked() instead.
>>    *
>>    * RETURNS:
>> - *
>>    * 0 on success or a negative error code on failure.
>>    */
>>   int drm_event_reserve_init(struct drm_device *dev,
>> diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
>> index d4bbc5d109c8..149b8e25da5b 100644
>> --- a/drivers/gpu/drm/drm_gem.c
>> +++ b/drivers/gpu/drm/drm_gem.c
>> @@ -689,7 +689,6 @@ static int objects_lookup(struct drm_file *filp, 
>> u32 *handle, int count,
>>    * For a single handle lookup, use drm_gem_object_lookup().
>>    *
>>    * Returns:
>> - *
>>    * @objs filled in with GEM object pointers. Returned GEM objects 
>> need to be
>>    * released with drm_gem_object_put(). -ENOENT is returned on a lookup
>>    * failure. 0 is returned on success.
>> @@ -737,12 +736,11 @@ EXPORT_SYMBOL(drm_gem_objects_lookup);
>>    * @filp: DRM file private date
>>    * @handle: userspace handle
>>    *
>> - * Returns:
>> + * If looking up an array of handles, use drm_gem_objects_lookup().
>>    *
>> + * Returns:
>>    * A reference to the object named by the handle if such exists on 
>> @filp, NULL
>>    * otherwise.
>> - *
>> - * If looking up an array of handles, use drm_gem_objects_lookup().
>>    */
>>   struct drm_gem_object *
>>   drm_gem_object_lookup(struct drm_file *filp, u32 handle)
>> @@ -763,7 +761,6 @@ EXPORT_SYMBOL(drm_gem_object_lookup);
>>    * @timeout: timeout value in jiffies or zero to return immediately
>>    *
>>    * Returns:
>> - *
>>    * Returns -ERESTARTSYS if interrupted, 0 if the wait timed out, or
>>    * greater than 0 on success.
>>    */
>> diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
>> index 1a0890083aee..6ba167a33461 100644
>> --- a/drivers/gpu/drm/drm_modes.c
>> +++ b/drivers/gpu/drm/drm_modes.c
>> @@ -539,7 +539,6 @@ static int fill_analog_mode(struct drm_device *dev,
>>    * to reach those resolutions.
>>    *
>>    * Returns:
>> - *
>>    * A pointer to the mode, allocated with drm_mode_create(). Returns 
>> NULL
>>    * on error.
>>    */
>> diff --git a/drivers/gpu/drm/drm_rect.c b/drivers/gpu/drm/drm_rect.c
>> index 85c79a38c13a..492acce0516f 100644
>> --- a/drivers/gpu/drm/drm_rect.c
>> +++ b/drivers/gpu/drm/drm_rect.c
>> @@ -85,7 +85,6 @@ static u32 clip_scaled(int src, int dst, int *clip)
>>    * factors from @src to @dst.
>>    *
>>    * RETURNS:
>> - *
>>    * %true if rectangle @dst is still visible after being clipped,
>>    * %false otherwise.
>>    */
>> diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
>> index cc3571e25a9a..6428b7975dd6 100644
>> --- a/drivers/gpu/drm/drm_vblank.c
>> +++ b/drivers/gpu/drm/drm_vblank.c
>> @@ -686,7 +686,6 @@ EXPORT_SYMBOL(drm_calc_timestamping_constants);
>>    * drm_atomic_helper_calc_timestamping_constants().
>>    *
>>    * Returns:
>> - *
>>    * Returns true on success, and false on failure, i.e. when no 
>> accurate
>>    * timestamp could be acquired.
>>    */
>> @@ -831,7 +830,6 @@ 
>> EXPORT_SYMBOL(drm_crtc_vblank_helper_get_vblank_timestamp_internal);
>>    * drm_atomic_helper_calc_timestamping_constants().
>>    *
>>    * Returns:
>> - *
>>    * Returns true on success, and false on failure, i.e. when no 
>> accurate
>>    * timestamp could be acquired.
>>    */
>> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h 
>> b/drivers/gpu/drm/i915/gem/i915_gem_object.h
>> index 5d7446a48ae7..3dc61cbd2e11 100644
>> --- a/drivers/gpu/drm/i915/gem/i915_gem_object.h
>> +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h
>> @@ -89,7 +89,6 @@ __i915_gem_object_unset_pages(struct 
>> drm_i915_gem_object *obj);
>>    * @handle: userspace handle
>>    *
>>    * Returns:
>> - *
>>    * A pointer to the object named by the handle if such exists on 
>> @filp, NULL
>>    * otherwise. This object is only valid whilst under the RCU read 
>> lock, and
>>    * note carefully the object may be in the process of being destroyed.
>> diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c 
>> b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
>> index 93bc1cc1ee7e..0ffba50981e3 100644
>> --- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
>> +++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
>> @@ -418,7 +418,6 @@ int __i915_vma_pin_fence(struct i915_vma *vma)
>>    * For an untiled surface, this removes any existing fence.
>>    *
>>    * Returns:
>> - *
>>    * 0 on success, negative error code on failure.
>>    */
>>   int i915_vma_pin_fence(struct i915_vma *vma)
>> diff --git a/drivers/gpu/drm/i915/i915_vma.h 
>> b/drivers/gpu/drm/i915/i915_vma.h
>> index e356dfb883d3..6a6be8048aa8 100644
>> --- a/drivers/gpu/drm/i915/i915_vma.h
>> +++ b/drivers/gpu/drm/i915/i915_vma.h
>> @@ -389,7 +389,6 @@ void i915_vma_unpin_iomap(struct i915_vma *vma);
>>    * i915_vma_unpin_fence().
>>    *
>>    * Returns:
>> - *
>>    * True if the vma has a fence, false otherwise.
>>    */
>>   int __must_check i915_vma_pin_fence(struct i915_vma *vma);
>

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)