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Date: Wed, 13 Jul 2022 18:02:13 -0400
From: Rodrigo Vivi <rodrigo.vivi@...el.com>
To: Mauro Carvalho Chehab <mchehab@...nel.org>
CC: Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
David Airlie <airlied@...ux.ie>,
<intel-gfx@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
<dri-devel@...ts.freedesktop.org>
Subject: Re: [PATCH v2 04/39] drm/i915: fix kernel-doc trivial warnings on
i915/*.[ch] files
On Wed, Jul 13, 2022 at 09:11:52AM +0100, Mauro Carvalho Chehab wrote:
> There are several trivial warnings there, due to trivial things:
> - lack of function name at the kerneldoc markup;
> - renamed functions;
> - wrong parameter syntax.
>
> Fix such warnings:
> drivers/gpu/drm/i915/i915_active.h:66: warning: Function parameter or member 'active' not described in '__i915_active_fence_init'
> drivers/gpu/drm/i915/i915_active.h:66: warning: Function parameter or member 'fence' not described in '__i915_active_fence_init'
> drivers/gpu/drm/i915/i915_active.h:66: warning: Function parameter or member 'fn' not described in '__i915_active_fence_init'
> drivers/gpu/drm/i915/i915_active.h:89: warning: Function parameter or member 'active' not described in 'i915_active_fence_set'
> drivers/gpu/drm/i915/i915_active.h:89: warning: Function parameter or member 'rq' not described in 'i915_active_fence_set'
> drivers/gpu/drm/i915/i915_active.h:102: warning: Function parameter or member 'active' not described in 'i915_active_fence_get'
> drivers/gpu/drm/i915/i915_active.h:122: warning: Function parameter or member 'active' not described in 'i915_active_fence_isset'
> drivers/gpu/drm/i915/i915_gem.c:443: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Reads data from the object referenced by handle.
> drivers/gpu/drm/i915/i915_gem.c:532: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * This is the fast pwrite path, where we copy the data directly from the
> drivers/gpu/drm/i915/i915_gem.c:717: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Writes data to the object referenced by handle.
> drivers/gpu/drm/i915/i915_gem.c:802: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Called when user space has done writes to this buffer
> drivers/gpu/drm/i915/i915_pmu.h:22: warning: cannot understand function prototype: 'enum i915_pmu_tracked_events '
> drivers/gpu/drm/i915/i915_pmu.h:33: warning: cannot understand function prototype: 'enum '
> drivers/gpu/drm/i915/i915_pmu.h:42: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * How many different events we track in the global PMU mask.
> drivers/gpu/drm/i915/i915_request.h:177: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Request queue structure.
> drivers/gpu/drm/i915/i915_request.h:473: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Returns true if seq1 is later than seq2.
> drivers/gpu/drm/i915/i915_scatterlist.c:63: warning: Function parameter or member 'size' not described in 'i915_refct_sgt_init'
> drivers/gpu/drm/i915/i915_scatterlist.h:153: warning: Incorrect use of kernel-doc format: * release() - Free the memory of the struct i915_refct_sgt
> drivers/gpu/drm/i915/i915_scatterlist.h:157: warning: Function parameter or member 'release' not described in 'i915_refct_sgt_ops'
> drivers/gpu/drm/i915/i915_scatterlist.h:180: warning: Function parameter or member 'rsgt' not described in 'i915_refct_sgt_put'
> drivers/gpu/drm/i915/i915_scatterlist.h:191: warning: Function parameter or member 'rsgt' not described in 'i915_refct_sgt_get'
> drivers/gpu/drm/i915/i915_scatterlist.h:207: warning: Function parameter or member 'rsgt' not described in '__i915_refct_sgt_init'
> drivers/gpu/drm/i915/i915_utils.h:291: warning: Function parameter or member 'OP' not described in '__wait_for'
> drivers/gpu/drm/i915/i915_utils.h:291: warning: Function parameter or member 'COND' not described in '__wait_for'
> drivers/gpu/drm/i915/i915_utils.h:291: warning: Function parameter or member 'US' not described in '__wait_for'
> drivers/gpu/drm/i915/i915_utils.h:291: warning: Function parameter or member 'Wmin' not described in '__wait_for'
> drivers/gpu/drm/i915/i915_utils.h:291: warning: Function parameter or member 'Wmax' not described in '__wait_for'
> drivers/gpu/drm/i915/i915_vma_resource.h:88: warning: Incorrect use of kernel-doc format: * struct i915_vma_bindinfo - Information needed for async bind
> drivers/gpu/drm/i915/i915_vma_resource.h:123: warning: Function parameter or member 'bi' not described in 'i915_vma_resource'
>
> Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>
functions should change to have "()" or not?
whatever you decide, keep it consistent and feel free to use
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@...el.com>
> ---
>
> To avoid mailbombing on a large number of people, only mailing lists were C/C on the cover.
> See [PATCH v2 00/39] at: https://lore.kernel.org/all/cover.1657699522.git.mchehab@kernel.org/
>
> drivers/gpu/drm/i915/i915_active.h | 14 +++++++-------
> drivers/gpu/drm/i915/i915_gem.c | 10 ++++++----
> drivers/gpu/drm/i915/i915_pmu.h | 6 +++---
> drivers/gpu/drm/i915/i915_request.h | 4 ++--
> drivers/gpu/drm/i915/i915_scatterlist.c | 2 +-
> drivers/gpu/drm/i915/i915_scatterlist.h | 10 +++++-----
> drivers/gpu/drm/i915/i915_utils.h | 2 +-
> drivers/gpu/drm/i915/i915_vma_resource.h | 2 +-
> 8 files changed, 26 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_active.h b/drivers/gpu/drm/i915/i915_active.h
> index 7eb44132183a..77c676ecc263 100644
> --- a/drivers/gpu/drm/i915/i915_active.h
> +++ b/drivers/gpu/drm/i915/i915_active.h
> @@ -49,9 +49,9 @@ void i915_active_noop(struct dma_fence *fence, struct dma_fence_cb *cb);
>
> /**
> * __i915_active_fence_init - prepares the activity tracker for use
> - * @active - the active tracker
> - * @fence - initial fence to track, can be NULL
> - * @func - a callback when then the tracker is retired (becomes idle),
> + * @active: the active tracker
> + * @fence: initial fence to track, can be NULL
> + * @fn: a callback when then the tracker is retired (becomes idle),
> * can be NULL
> *
> * i915_active_fence_init() prepares the embedded @active struct for use as
> @@ -77,8 +77,8 @@ __i915_active_fence_set(struct i915_active_fence *active,
>
> /**
> * i915_active_fence_set - updates the tracker to watch the current fence
> - * @active - the active tracker
> - * @rq - the request to watch
> + * @active: the active tracker
> + * @rq: the request to watch
> *
> * i915_active_fence_set() watches the given @rq for completion. While
> * that @rq is busy, the @active reports busy. When that @rq is signaled
> @@ -89,7 +89,7 @@ i915_active_fence_set(struct i915_active_fence *active,
> struct i915_request *rq);
> /**
> * i915_active_fence_get - return a reference to the active fence
> - * @active - the active tracker
> + * @active: the active tracker
> *
> * i915_active_fence_get() returns a reference to the active fence,
> * or NULL if the active tracker is idle. The reference is obtained under RCU,
> @@ -111,7 +111,7 @@ i915_active_fence_get(struct i915_active_fence *active)
>
> /**
> * i915_active_fence_isset - report whether the active tracker is assigned
> - * @active - the active tracker
> + * @active: the active tracker
> *
> * i915_active_fence_isset() returns true if the active tracker is currently
> * assigned to a fence. Due to the lazy retiring, that fence may be idle
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 702e5b89be22..41e83d078a70 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -439,7 +439,7 @@ i915_gem_gtt_pread(struct drm_i915_gem_object *obj,
> }
>
> /**
> - * Reads data from the object referenced by handle.
> + * i915_gem_pread_ioctl - Reads data from the object referenced by handle.
> * @dev: drm device pointer
> * @data: ioctl data blob
> * @file: drm file pointer
> @@ -528,7 +528,8 @@ ggtt_write(struct io_mapping *mapping,
> }
>
> /**
> - * This is the fast pwrite path, where we copy the data directly from the
> + * i915_gem_gtt_pwrite_fast - This is the fast pwrite path, where we copy
> + * the data directly from the
> * user into the GTT, uncached.
> * @obj: i915 GEM object
> * @args: pwrite arguments structure
> @@ -713,7 +714,7 @@ i915_gem_shmem_pwrite(struct drm_i915_gem_object *obj,
> }
>
> /**
> - * Writes data to the object referenced by handle.
> + * i915_gem_pwrite_ioctl - Writes data to the object referenced by handle.
> * @dev: drm device
> * @data: ioctl data blob
> * @file: drm file
> @@ -798,7 +799,8 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
> }
>
> /**
> - * Called when user space has done writes to this buffer
> + * i915_gem_sw_finish_ioctl - Called when user space has done writes to
> + * this buffer
> * @dev: drm device
> * @data: ioctl data blob
> * @file: drm file
> diff --git a/drivers/gpu/drm/i915/i915_pmu.h b/drivers/gpu/drm/i915/i915_pmu.h
> index 449057648f39..c30f43319a78 100644
> --- a/drivers/gpu/drm/i915/i915_pmu.h
> +++ b/drivers/gpu/drm/i915/i915_pmu.h
> @@ -14,7 +14,7 @@
>
> struct drm_i915_private;
>
> -/**
> +/*
> * Non-engine events that we need to track enabled-disabled transition and
> * current state.
> */
> @@ -25,7 +25,7 @@ enum i915_pmu_tracked_events {
> __I915_PMU_TRACKED_EVENT_COUNT, /* count marker */
> };
>
> -/**
> +/*
> * Slots used from the sampling timer (non-engine events) with some extras for
> * convenience.
> */
> @@ -37,7 +37,7 @@ enum {
> __I915_NUM_PMU_SAMPLERS
> };
>
> -/**
> +/*
> * How many different events we track in the global PMU mask.
> *
> * It is also used to know to needed number of event reference counters.
> diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h
> index 47041ec68df8..66d6dee98525 100644
> --- a/drivers/gpu/drm/i915/i915_request.h
> +++ b/drivers/gpu/drm/i915/i915_request.h
> @@ -172,7 +172,7 @@ enum {
> I915_FENCE_FLAG_COMPOSITE,
> };
>
> -/**
> +/*
> * Request queue structure.
> *
> * The request queue allows us to note sequence numbers that have been emitted
> @@ -468,7 +468,7 @@ i915_request_has_initial_breadcrumb(const struct i915_request *rq)
> return test_bit(I915_FENCE_FLAG_INITIAL_BREADCRUMB, &rq->fence.flags);
> }
>
> -/**
> +/*
> * Returns true if seq1 is later than seq2.
> */
> static inline bool i915_seqno_passed(u32 seq1, u32 seq2)
> diff --git a/drivers/gpu/drm/i915/i915_scatterlist.c b/drivers/gpu/drm/i915/i915_scatterlist.c
> index f63b50b71e10..128fab326bb0 100644
> --- a/drivers/gpu/drm/i915/i915_scatterlist.c
> +++ b/drivers/gpu/drm/i915/i915_scatterlist.c
> @@ -56,7 +56,7 @@ static const struct i915_refct_sgt_ops rsgt_ops = {
> /**
> * i915_refct_sgt_init - Initialize a struct i915_refct_sgt with default ops
> * @rsgt: The struct i915_refct_sgt to initialize.
> - * size: The size of the underlying memory buffer.
> + * @size: The size of the underlying memory buffer.
> */
> void i915_refct_sgt_init(struct i915_refct_sgt *rsgt, size_t size)
> {
> diff --git a/drivers/gpu/drm/i915/i915_scatterlist.h b/drivers/gpu/drm/i915/i915_scatterlist.h
> index b13e4cdea923..0b8bf4be4330 100644
> --- a/drivers/gpu/drm/i915/i915_scatterlist.h
> +++ b/drivers/gpu/drm/i915/i915_scatterlist.h
> @@ -149,7 +149,7 @@ bool i915_sg_trim(struct sg_table *orig_st);
> */
> struct i915_refct_sgt_ops {
> /**
> - * release() - Free the memory of the struct i915_refct_sgt
> + * @release: Free the memory of the struct i915_refct_sgt
> * @ref: struct kref that is embedded in the struct i915_refct_sgt
> */
> void (*release)(struct kref *ref);
> @@ -159,7 +159,7 @@ struct i915_refct_sgt_ops {
> * struct i915_refct_sgt - A refcounted scatter-gather table
> * @kref: struct kref for refcounting
> * @table: struct sg_table holding the scatter-gather table itself. Note that
> - * @table->sgl = NULL can be used to determine whether a scatter-gather table
> + * @table->sgl == NULL can be used to determine whether a scatter-gather table
> * is present or not.
> * @size: The size in bytes of the underlying memory buffer
> * @ops: The operations structure.
> @@ -173,7 +173,7 @@ struct i915_refct_sgt {
>
> /**
> * i915_refct_sgt_put - Put a refcounted sg-table
> - * @rsgt the struct i915_refct_sgt to put.
> + * @rsgt: the struct i915_refct_sgt to put.
> */
> static inline void i915_refct_sgt_put(struct i915_refct_sgt *rsgt)
> {
> @@ -183,7 +183,7 @@ static inline void i915_refct_sgt_put(struct i915_refct_sgt *rsgt)
>
> /**
> * i915_refct_sgt_get - Get a refcounted sg-table
> - * @rsgt the struct i915_refct_sgt to get.
> + * @rsgt: the struct i915_refct_sgt to get.
> */
> static inline struct i915_refct_sgt *
> i915_refct_sgt_get(struct i915_refct_sgt *rsgt)
> @@ -195,7 +195,7 @@ i915_refct_sgt_get(struct i915_refct_sgt *rsgt)
> /**
> * __i915_refct_sgt_init - Initialize a refcounted sg-list with a custom
> * operations structure
> - * @rsgt The struct i915_refct_sgt to initialize.
> + * @rsgt: The struct i915_refct_sgt to initialize.
> * @size: Size in bytes of the underlying memory buffer.
> * @ops: A customized operations structure in case the refcounted sg-list
> * is embedded into another structure.
> diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h
> index c10d68cdc3ca..cae684c40d4f 100644
> --- a/drivers/gpu/drm/i915/i915_utils.h
> +++ b/drivers/gpu/drm/i915/i915_utils.h
> @@ -256,7 +256,7 @@ wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
> }
> }
>
> -/**
> +/*
> * __wait_for - magic wait macro
> *
> * Macro to help avoid open coding check/wait/timeout patterns. Note that it's
> diff --git a/drivers/gpu/drm/i915/i915_vma_resource.h b/drivers/gpu/drm/i915/i915_vma_resource.h
> index 5d8427caa2ba..14a0327b2080 100644
> --- a/drivers/gpu/drm/i915/i915_vma_resource.h
> +++ b/drivers/gpu/drm/i915/i915_vma_resource.h
> @@ -84,7 +84,7 @@ struct i915_vma_resource {
> intel_wakeref_t wakeref;
>
> /**
> - * struct i915_vma_bindinfo - Information needed for async bind
> + * @bi: Information needed for async bind
> * only but that can be dropped after the bind has taken place.
> * Consider making this a separate argument to the bind_vma
> * op, coalescing with other arguments like vm, stash, cache_level
> --
> 2.36.1
>
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