linux-kernel - [PATCH v2 4/5] drm/etnaviv: Reuse dma_fence

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Date:   Wed, 12 Apr 2017 12:12:01 -0700
From:   Eric Anholt <eric@...olt.net>
To:     dri-devel@...ts.freedesktop.org
Cc:     linux-kernel@...r.kernel.org, Eric Anholt <eric@...olt.net>,
        Lucas Stach <l.stach@...gutronix.de>,
        Russell King <linux+etnaviv@...linux.org.uk>,
        Christian Gmeiner <christian.gmeiner@...il.com>,
        etnaviv@...ts.freedesktop.org
Subject: [PATCH v2 4/5] drm/etnaviv: Reuse dma_fence_release.

If we follow the typical pattern of the base class being the first
member, we can use the default dma_fence_free function.

Signed-off-by: Eric Anholt <eric@...olt.net>
Cc: Lucas Stach <l.stach@...gutronix.de>
Cc: Russell King <linux+etnaviv@...linux.org.uk>
Cc: Christian Gmeiner <christian.gmeiner@...il.com>
Cc: etnaviv@...ts.freedesktop.org
---
 drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index da48819ff2e6..0d26ca56e94b 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -998,8 +998,8 @@ static void hangcheck_disable(struct etnaviv_gpu *gpu)
 
 /* fence object management */
 struct etnaviv_fence {
-	struct etnaviv_gpu *gpu;
 	struct dma_fence base;
+	struct etnaviv_gpu *gpu;
 };
 
 static inline struct etnaviv_fence *to_etnaviv_fence(struct dma_fence *fence)
@@ -1031,20 +1031,13 @@ static bool etnaviv_fence_signaled(struct dma_fence *fence)
 	return fence_completed(f->gpu, f->base.seqno);
 }
 
-static void etnaviv_fence_release(struct dma_fence *fence)
-{
-	struct etnaviv_fence *f = to_etnaviv_fence(fence);
-
-	kfree_rcu(f, base.rcu);
-}
-
 static const struct dma_fence_ops etnaviv_fence_ops = {
 	.get_driver_name = etnaviv_fence_get_driver_name,
 	.get_timeline_name = etnaviv_fence_get_timeline_name,
 	.enable_signaling = etnaviv_fence_enable_signaling,
 	.signaled = etnaviv_fence_signaled,
 	.wait = dma_fence_default_wait,
-	.release = etnaviv_fence_release,
+	.release = dma_fence_free,
 };
 
 static struct dma_fence *etnaviv_gpu_fence_alloc(struct etnaviv_gpu *gpu)
-- 
2.11.0