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    SubjectRe: [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@kernel.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@intel.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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