[PATCH 10/23] dma-buf: finally make dma_resv_excl_fence private v2

Christian König ckoenig.leichtzumerken at gmail.com
Fri Feb 11 12:49:50 UTC 2022


Drivers should never touch this directly.

v2: fix rebase clash

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/dma-buf/dma-resv.c |  6 ++++++
 include/linux/dma-resv.h   | 17 -----------------
 2 files changed, 6 insertions(+), 17 deletions(-)

diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c
index 005fbe61103e..16ad98fd3130 100644
--- a/drivers/dma-buf/dma-resv.c
+++ b/drivers/dma-buf/dma-resv.c
@@ -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));
diff --git a/include/linux/dma-resv.h b/include/linux/dma-resv.h
index 08512c1e215d..20e13f36710a 100644
--- a/include/linux/dma-resv.h
+++ b/include/linux/dma-resv.h
@@ -423,23 +423,6 @@ 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);
-- 
2.25.1



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