Re: [PATCH 31/42] drm/ttm/ttm_bo: Fix one function header - demote lots of kernel-doc abuses

From: Christian König
Date: Mon Nov 16 2020 - 15:33:58 EST


Am 16.11.20 um 18:41 schrieb Lee Jones:
Fixes the following W=1 kernel build warning(s):

drivers/gpu/drm/ttm/ttm_bo.c:51: warning: Function parameter or member 'ttm_global_mutex' not described in 'DEFINE_MUTEX'
drivers/gpu/drm/ttm/ttm_bo.c:286: warning: Function parameter or member 'bo' not described in 'ttm_bo_cleanup_memtype_use'
drivers/gpu/drm/ttm/ttm_bo.c:359: warning: Function parameter or member 'bo' not described in 'ttm_bo_cleanup_refs'
drivers/gpu/drm/ttm/ttm_bo.c:359: warning: Function parameter or member 'interruptible' not described in 'ttm_bo_cleanup_refs'
drivers/gpu/drm/ttm/ttm_bo.c:359: warning: Function parameter or member 'no_wait_gpu' not described in 'ttm_bo_cleanup_refs'
drivers/gpu/drm/ttm/ttm_bo.c:359: warning: Function parameter or member 'unlock_resv' not described in 'ttm_bo_cleanup_refs'
drivers/gpu/drm/ttm/ttm_bo.c:424: warning: Function parameter or member 'bdev' not described in 'ttm_bo_delayed_delete'
drivers/gpu/drm/ttm/ttm_bo.c:424: warning: Function parameter or member 'remove_all' not described in 'ttm_bo_delayed_delete'
drivers/gpu/drm/ttm/ttm_bo.c:635: warning: Function parameter or member 'bo' not described in 'ttm_bo_evict_swapout_allowable'
drivers/gpu/drm/ttm/ttm_bo.c:635: warning: Function parameter or member 'ctx' not described in 'ttm_bo_evict_swapout_allowable'
drivers/gpu/drm/ttm/ttm_bo.c:635: warning: Function parameter or member 'locked' not described in 'ttm_bo_evict_swapout_allowable'
drivers/gpu/drm/ttm/ttm_bo.c:635: warning: Function parameter or member 'busy' not described in 'ttm_bo_evict_swapout_allowable'
drivers/gpu/drm/ttm/ttm_bo.c:769: warning: Function parameter or member 'bo' not described in 'ttm_bo_add_move_fence'
drivers/gpu/drm/ttm/ttm_bo.c:769: warning: Function parameter or member 'man' not described in 'ttm_bo_add_move_fence'
drivers/gpu/drm/ttm/ttm_bo.c:769: warning: Function parameter or member 'mem' not described in 'ttm_bo_add_move_fence'
drivers/gpu/drm/ttm/ttm_bo.c:769: warning: Function parameter or member 'no_wait_gpu' not described in 'ttm_bo_add_move_fence'
drivers/gpu/drm/ttm/ttm_bo.c:806: warning: Function parameter or member 'bo' not described in 'ttm_bo_mem_force_space'
drivers/gpu/drm/ttm/ttm_bo.c:806: warning: Function parameter or member 'place' not described in 'ttm_bo_mem_force_space'
drivers/gpu/drm/ttm/ttm_bo.c:806: warning: Function parameter or member 'mem' not described in 'ttm_bo_mem_force_space'
drivers/gpu/drm/ttm/ttm_bo.c:806: warning: Function parameter or member 'ctx' not described in 'ttm_bo_mem_force_space'
drivers/gpu/drm/ttm/ttm_bo.c:872: warning: Function parameter or member 'bo' not described in 'ttm_bo_mem_space'
drivers/gpu/drm/ttm/ttm_bo.c:872: warning: Function parameter or member 'placement' not described in 'ttm_bo_mem_space'
drivers/gpu/drm/ttm/ttm_bo.c:872: warning: Function parameter or member 'mem' not described in 'ttm_bo_mem_space'
drivers/gpu/drm/ttm/ttm_bo.c:872: warning: Function parameter or member 'ctx' not described in 'ttm_bo_mem_space'
drivers/gpu/drm/ttm/ttm_bo.c:1387: warning: Function parameter or member 'ctx' not described in 'ttm_bo_swapout'

Cc: Christian Koenig <christian.koenig@xxxxxxx>
Cc: Huang Rui <ray.huang@xxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-media@xxxxxxxxxxxxxxx
Cc: linaro-mm-sig@xxxxxxxxxxxxxxxx
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>

Reviewed-by: Christian König <christian.koenig@xxxxxxx>

Going to pick that one up for upstreaming.

Thanks,
Christian.

---
drivers/gpu/drm/ttm/ttm_bo.c | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index e6bcbfe530ecc..9a03c7834b1ed 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -45,7 +45,7 @@
static void ttm_bo_global_kobj_release(struct kobject *kobj);
-/**
+/*
* ttm_global_mutex - protecting the global BO state
*/
DEFINE_MUTEX(ttm_global_mutex);
@@ -278,7 +278,7 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
return ret;
}
-/**
+/*
* Call bo::reserved.
* Will release GPU memory type usage on destruction.
* This is the place to put in driver specific hooks to release
@@ -352,9 +352,10 @@ static void ttm_bo_flush_all_fences(struct ttm_buffer_object *bo)
* Must be called with lru_lock and reservation held, this function
* will drop the lru lock and optionally the reservation lock before returning.
*
- * @interruptible Any sleeps should occur interruptibly.
- * @no_wait_gpu Never wait for gpu. Return -EBUSY instead.
- * @unlock_resv Unlock the reservation lock as well.
+ * @bo: The buffer object to clean-up
+ * @interruptible: Any sleeps should occur interruptibly.
+ * @no_wait_gpu: Never wait for gpu. Return -EBUSY instead.
+ * @unlock_resv: Unlock the reservation lock as well.
*/
static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
@@ -420,7 +421,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
return 0;
}
-/**
+/*
* Traverse the delayed list, and call ttm_bo_cleanup_refs on all
* encountered buffers.
*/
@@ -628,7 +629,7 @@ bool ttm_bo_eviction_valuable(struct ttm_buffer_object *bo,
}
EXPORT_SYMBOL(ttm_bo_eviction_valuable);
-/**
+/*
* Check the target bo is allowable to be evicted or swapout, including cases:
*
* a. if share same reservation object with ctx->resv, have assumption
@@ -767,7 +768,7 @@ int ttm_mem_evict_first(struct ttm_bo_device *bdev,
return ret;
}
-/**
+/*
* Add the last move fence to the BO and reserve a new shared slot.
*/
static int ttm_bo_add_move_fence(struct ttm_buffer_object *bo,
@@ -803,7 +804,7 @@ static int ttm_bo_add_move_fence(struct ttm_buffer_object *bo,
return 0;
}
-/**
+/*
* Repeatedly evict memory from the LRU for @mem_type until we create enough
* space, or we've evicted everything and there isn't enough space.
*/
@@ -865,7 +866,7 @@ static int ttm_bo_mem_placement(struct ttm_buffer_object *bo,
return 0;
}
-/**
+/*
* Creates space for memory region @mem according to its type.
*
* This function first searches for free space in compatible memory types in
@@ -1430,7 +1431,7 @@ int ttm_bo_wait(struct ttm_buffer_object *bo,
}
EXPORT_SYMBOL(ttm_bo_wait);
-/**
+/*
* A buffer object shrink method that tries to swap out the first
* buffer object on the bo_global::swap_lru list.
*/