Without this patch a timed out submit will never be caught, is it really good ? For the backward compatible why it's applied on incorrect logic ? -----Original Message----- From: Christian König [mailto:ckoenig.leichtzumerken@xxxxxxxxx] Sent: 2017å¹´12æ??12æ?¥ 18:20 To: Liu, Monk <Monk.Liu at amd.com>; amd-gfx at lists.freedesktop.org Subject: Re: [PATCH 4/7] drm/amdgpu:return ETIME if really time out NAK, it does make sense but that would change the user space interface in a non backward compatible way, wouldn't it? Christian. Am 12.12.2017 um 10:46 schrieb Monk Liu: > Change-Id: I7304577a500fc2d41482f2fe3f1692ae3797f576 > Signed-off-by: Monk Liu <Monk.Liu at amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > index 44523a8..f62b07a 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > @@ -1506,8 +1506,8 @@ static int amdgpu_cs_wait_any_fence(struct > amdgpu_device *adev, > > if (first < fence_count && array[first]) > r = array[first]->error; > - else > - r = 0; > + else if (r == 0) > + r = -ETIME; > > err_free_fence_array: > for (i = 0; i < fence_count; i++)