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dma-buf: finally make dma_resv_excl_fence private v2

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Drivers should never touch this directly.

v2: fix rebase clash

Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220321135856.1331-10-christian.koenig@amd.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Christian König 2021-11-03 13:35:14 +01:00
parent 756cc94d15
commit 71d637823c
2 changed files with 6 additions and 17 deletions
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6
drivers/dma-buf/dma-resv.c
View File

@ -140,6 +140,12 @@ void dma_resv_fini(struct dma_resv *obj)
}
EXPORT_SYMBOL(dma_resv_fini);
static inline struct dma_fence *
dma_resv_excl_fence(struct dma_resv *obj)
{
return rcu_dereference_check(obj->fence_excl, dma_resv_held(obj));
}
static inline struct dma_resv_list *dma_resv_shared_list(struct dma_resv *obj)
{
return rcu_dereference_check(obj->fence, dma_resv_held(obj));

17
include/linux/dma-resv.h
View File

@ -411,23 +411,6 @@ static inline void dma_resv_unlock(struct dma_resv *obj)
ww_mutex_unlock(&obj->lock);
}
/**
* dma_resv_excl_fence - return the object's exclusive fence
* @obj: the reservation object
*
* Returns the exclusive fence (if any). Caller must either hold the objects
* through dma_resv_lock() or the RCU read side lock through rcu_read_lock(),
* or one of the variants of each
*
* RETURNS
* The exclusive fence or NULL
*/
static inline struct dma_fence *
dma_resv_excl_fence(struct dma_resv *obj)
{
return rcu_dereference_check(obj->fence_excl, dma_resv_held(obj));
}
void dma_resv_init(struct dma_resv *obj);
void dma_resv_fini(struct dma_resv *obj);
int dma_resv_reserve_shared(struct dma_resv *obj, unsigned int num_fences);