On Wed, Nov 6, 2019 at 7:48 AM Koenig, Christian
<Christian.Koenig@xxxxxxx> wrote:
>
> Am 06.11.19 um 12:35 schrieb Pan Bian:
> > The reference to object fence is dropped at the end of the loop.
> > However, it is dropped again outside the loop. The reference can be
> > dropped immediately after calling dma_fence_wait() in the loop and
> > thus the dropping operation outside the loop can be removed.
> >
> > Signed-off-by: Pan Bian <bianpan2016@xxxxxxx>
>
> Reviewed-by: Christian König <christian.koenig@xxxxxxx>
>
Applied. thanks!
Alex
> > ---
> > v2: fix the bug in a more concise way
> > ---
> > drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c | 6 ++----
> > 1 file changed, 2 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
> > index 649e68c4479b..d1495e1c9289 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
> > @@ -33,7 +33,7 @@ static int amdgpu_benchmark_do_move(struct amdgpu_device *adev, unsigned size,
> > {
> > unsigned long start_jiffies;
> > unsigned long end_jiffies;
> > - struct dma_fence *fence = NULL;
> > + struct dma_fence *fence;
> > int i, r;
> >
> > start_jiffies = jiffies;
> > @@ -44,16 +44,14 @@ static int amdgpu_benchmark_do_move(struct amdgpu_device *adev, unsigned size,
> > if (r)
> > goto exit_do_move;
> > r = dma_fence_wait(fence, false);
> > + dma_fence_put(fence);
> > if (r)
> > goto exit_do_move;
> > - dma_fence_put(fence);
> > }
> > end_jiffies = jiffies;
> > r = jiffies_to_msecs(end_jiffies - start_jiffies);
> >
> > exit_do_move:
> > - if (fence)
> > - dma_fence_put(fence);
> > return r;
> > }
> >
>
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