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Date: Mon, 16 Nov 2020 21:33:48 +0100 From: Christian König <christian.koenig@....com> To: Lee Jones <lee.jones@...aro.org> Cc: linux-kernel@...r.kernel.org, Huang Rui <ray.huang@....com>, David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>, Sumit Semwal <sumit.semwal@...aro.org>, dri-devel@...ts.freedesktop.org, linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org Subject: Re: [PATCH 31/42] drm/ttm/ttm_bo: Fix one function header - demote lots of kernel-doc abuses 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@....com> > Cc: Huang Rui <ray.huang@....com> > Cc: David Airlie <airlied@...ux.ie> > Cc: Daniel Vetter <daniel@...ll.ch> > Cc: Sumit Semwal <sumit.semwal@...aro.org> > Cc: dri-devel@...ts.freedesktop.org > Cc: linux-media@...r.kernel.org > Cc: linaro-mm-sig@...ts.linaro.org > Signed-off-by: Lee Jones <lee.jones@...aro.org> Reviewed-by: Christian König <christian.koenig@....com> 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. > */
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