[PATCH v2] drm/tegra: tegra_drm.h: fix all uapi kernel-doc warnings

[PATCH v2] drm/tegra: tegra_drm.h: fix all uapi kernel-doc warnings

[Randy Dunlap]

Add 2 struct member descriptions and convert #define macro constants
comments to kernel-doc comments to eliminate all kernel-doc warnings:

Warning: include/uapi/drm/tegra_drm.h:353 struct member 'cmdbuf' not
 described in 'drm_tegra_reloc'
Warning: include/uapi/drm/tegra_drm.h:353 struct member 'target' not
 described in 'drm_tegra_reloc'

Warning: include/uapi/drm/tegra_drm.h:780 This comment starts with '/**',
 but isn't a kernel-doc comment.
 * Specify that bit 39 of the patched-in address should be set to switch
Warning: include/uapi/drm/tegra_drm.h:832 This comment starts with '/**',
 but isn't a kernel-doc comment.
 * Execute `words` words of Host1x opcodes specified in the
 `gather_data_ptr`
Warning: include/uapi/drm/tegra_drm.h:837 This comment starts with '/**',
 but isn't a kernel-doc comment.
 * Wait for a syncpoint to reach a value before continuing with further
Warning: include/uapi/drm/tegra_drm.h:842 This comment starts with '/**',
 but isn't a kernel-doc comment.
 * Wait for a syncpoint to reach a value before continuing with further

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
---
v2: add kernel-doc comments for #define constants (thanks, Mikko)

Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Mikko Perttunen <mperttunen@nvidia.com>
Cc: linux-tegra@vger.kernel.org
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Simona Vetter <simona@ffwll.ch>

 include/uapi/drm/tegra_drm.h |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

--- linux-next-20260303.orig/include/uapi/drm/tegra_drm.h
+++ linux-next-20260303/include/uapi/drm/tegra_drm.h
@@ -304,6 +304,7 @@ struct drm_tegra_cmdbuf {
  * struct drm_tegra_reloc - GEM object relocation structure
  */
 struct drm_tegra_reloc {
+	/** @cmdbuf: cmd information */
 	struct {
 		/**
 		 * @cmdbuf.handle:
@@ -321,6 +322,7 @@ struct drm_tegra_reloc {
 		 */
 		__u32 offset;
 	} cmdbuf;
+	/** @target: relocate target information */
 	struct {
 		/**
 		 * @target.handle:
@@ -778,6 +780,9 @@ struct drm_tegra_channel_unmap {
 /* Submission */
 
 /**
+ * define DRM_TEGRA_SUBMIT_RELOC_SECTOR_LAYOUT - \
+ *    Select sector layout swizzling for in-memory buffers.
+ *
  * Specify that bit 39 of the patched-in address should be set to switch
  * swizzling between Tegra and non-Tegra sector layout on systems that store
  * surfaces in system memory in non-Tegra sector layout.
@@ -830,16 +835,27 @@ struct drm_tegra_submit_buf {
 };
 
 /**
+ * define DRM_TEGRA_SUBMIT_CMD_GATHER_UPTR - \
+ *    Execute Host1x opcodes from user pointer.
+ *
  * Execute `words` words of Host1x opcodes specified in the `gather_data_ptr`
  * buffer. Each GATHER_UPTR command uses successive words from the buffer.
  */
 #define DRM_TEGRA_SUBMIT_CMD_GATHER_UPTR		0
+
 /**
+ * define DRM_TEGRA_SUBMIT_CMD_WAIT_SYNCPT - \
+ *    Wait for syncpoint (absolute).
+ *
  * Wait for a syncpoint to reach a value before continuing with further
  * commands.
  */
 #define DRM_TEGRA_SUBMIT_CMD_WAIT_SYNCPT		1
+
 /**
+ * define DRM_TEGRA_SUBMIT_CMD_WAIT_SYNCPT_RELATIVE - \
+ *    Wait for syncpoint (relative).
+ *
  * Wait for a syncpoint to reach a value before continuing with further
  * commands. The threshold is calculated relative to the start of the job.
  */

Re: [PATCH v2] drm/tegra: tegra_drm.h: fix all uapi kernel-doc warnings

[Mikko Perttunen]

On Wednesday, March 4, 2026 10:41 AM Randy Dunlap wrote:
> Add 2 struct member descriptions and convert #define macro constants
> comments to kernel-doc comments to eliminate all kernel-doc warnings:
> 
> Warning: include/uapi/drm/tegra_drm.h:353 struct member 'cmdbuf' not
>  described in 'drm_tegra_reloc'
> Warning: include/uapi/drm/tegra_drm.h:353 struct member 'target' not
>  described in 'drm_tegra_reloc'
> 
> Warning: include/uapi/drm/tegra_drm.h:780 This comment starts with '/**',
>  but isn't a kernel-doc comment.
>  * Specify that bit 39 of the patched-in address should be set to switch
> Warning: include/uapi/drm/tegra_drm.h:832 This comment starts with '/**',
>  but isn't a kernel-doc comment.
>  * Execute `words` words of Host1x opcodes specified in the
>  `gather_data_ptr`
> Warning: include/uapi/drm/tegra_drm.h:837 This comment starts with '/**',
>  but isn't a kernel-doc comment.
>  * Wait for a syncpoint to reach a value before continuing with further
> Warning: include/uapi/drm/tegra_drm.h:842 This comment starts with '/**',
>  but isn't a kernel-doc comment.
>  * Wait for a syncpoint to reach a value before continuing with further
> 
> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
> ---
> v2: add kernel-doc comments for #define constants (thanks, Mikko)
> 
> Cc: Thierry Reding <thierry.reding@gmail.com>
> Cc: Mikko Perttunen <mperttunen@nvidia.com>
> Cc: linux-tegra@vger.kernel.org
> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> Cc: Maxime Ripard <mripard@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: David Airlie <airlied@gmail.com>
> Cc: Simona Vetter <simona@ffwll.ch>
> 
>  include/uapi/drm/tegra_drm.h |   16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> --- linux-next-20260303.orig/include/uapi/drm/tegra_drm.h
> +++ linux-next-20260303/include/uapi/drm/tegra_drm.h
> @@ -304,6 +304,7 @@ struct drm_tegra_cmdbuf {
>   * struct drm_tegra_reloc - GEM object relocation structure
>   */
>  struct drm_tegra_reloc {
> +	/** @cmdbuf: cmd information */
>  	struct {
>  		/**
>  		 * @cmdbuf.handle:
> @@ -321,6 +322,7 @@ struct drm_tegra_reloc {
>  		 */
>  		__u32 offset;
>  	} cmdbuf;
> +	/** @target: relocate target information */
>  	struct {
>  		/**
>  		 * @target.handle:
> @@ -778,6 +780,9 @@ struct drm_tegra_channel_unmap {
>  /* Submission */
> 
>  /**
> + * define DRM_TEGRA_SUBMIT_RELOC_SECTOR_LAYOUT - \
> + *    Select sector layout swizzling for in-memory buffers.
> + *
>   * Specify that bit 39 of the patched-in address should be set to switch
>   * swizzling between Tegra and non-Tegra sector layout on systems that
> store * surfaces in system memory in non-Tegra sector layout.
> @@ -830,16 +835,27 @@ struct drm_tegra_submit_buf {
>  };
> 
>  /**
> + * define DRM_TEGRA_SUBMIT_CMD_GATHER_UPTR - \
> + *    Execute Host1x opcodes from user pointer.
> + *
>   * Execute `words` words of Host1x opcodes specified in the
> `gather_data_ptr` * buffer. Each GATHER_UPTR command uses successive words
> from the buffer. */
>  #define DRM_TEGRA_SUBMIT_CMD_GATHER_UPTR		0
> +
>  /**
> + * define DRM_TEGRA_SUBMIT_CMD_WAIT_SYNCPT - \
> + *    Wait for syncpoint (absolute).
> + *
>   * Wait for a syncpoint to reach a value before continuing with further
>   * commands.
>   */
>  #define DRM_TEGRA_SUBMIT_CMD_WAIT_SYNCPT		1
> +
>  /**
> + * define DRM_TEGRA_SUBMIT_CMD_WAIT_SYNCPT_RELATIVE - \
> + *    Wait for syncpoint (relative).
> + *
>   * Wait for a syncpoint to reach a value before continuing with further
>   * commands. The threshold is calculated relative to the start of the job.
>   */

Thank you!

Acked-by: Mikko Perttunen <mperttunen@nvidia.com>