>-----Original Message-----
>From: dri-devel <dri-devel-boun...@lists.freedesktop.org> On Behalf Of
>Ruhl, Michael J
>Sent: Monday, May 11, 2020 2:13 PM
>To: Daniel Vetter <daniel.vet...@ffwll.ch>; LKML <linux-
>ker...@vger.kernel.org>
>Cc: Intel Graphics Development <intel-...@lists.freedesktop.org>; DRI
>Development <dri-devel@lists.freedesktop.org>; linaro-mm-
>s...@lists.linaro.org; Vetter, Daniel <daniel.vet...@intel.com>; linux-
>me...@vger.kernel.org
>Subject: RE: [Intel-gfx] [PATCH 2/3] dma-fence: use default wait function for
>mock fences
>
>>-----Original Message-----
>>From: Intel-gfx <intel-gfx-boun...@lists.freedesktop.org> On Behalf Of
>>Daniel Vetter
>>Sent: Monday, May 11, 2020 5:12 AM
>>To: LKML <linux-ker...@vger.kernel.org>
>>Cc: Daniel Vetter <daniel.vet...@ffwll.ch>; Intel Graphics Development
>><intel-...@lists.freedesktop.org>; DRI Development <dri-
>>de...@lists.freedesktop.org>; linaro-mm-...@lists.linaro.org; Vetter, Daniel
>><daniel.vet...@intel.com>; Sumit Semwal <sumit.sem...@linaro.org>;
>linux-
>>me...@vger.kernel.org
>>Subject: [Intel-gfx] [PATCH 2/3] dma-fence: use default wait function for
>>mock fences
>>
>>No need to micro-optmize when we're waiting in a mocked object ...
>
>Makes sense to me.

/sigh.

Reading Chris comment, I am no longer sure it make sense... 

Un-ack?

m

>Acked-by: Michael J. Ruhl <michael.j.r...@intel.com>
>
>M
>
>>Signed-off-by: Daniel Vetter <daniel.vet...@intel.com>
>>Cc: Sumit Semwal <sumit.sem...@linaro.org>
>>Cc: linux-me...@vger.kernel.org
>>Cc: linaro-mm-...@lists.linaro.org
>>---
>> drivers/dma-buf/st-dma-fence.c | 41 ----------------------------------
>> 1 file changed, 41 deletions(-)
>>
>>diff --git a/drivers/dma-buf/st-dma-fence.c b/drivers/dma-buf/st-dma-
>>fence.c
>>index e593064341c8..8166d2984702 100644
>>--- a/drivers/dma-buf/st-dma-fence.c
>>+++ b/drivers/dma-buf/st-dma-fence.c
>>@@ -33,50 +33,9 @@ static void mock_fence_release(struct dma_fence *f)
>>      kmem_cache_free(slab_fences, to_mock_fence(f));
>> }
>>
>>-struct wait_cb {
>>-     struct dma_fence_cb cb;
>>-     struct task_struct *task;
>>-};
>>-
>>-static void mock_wakeup(struct dma_fence *f, struct dma_fence_cb *cb)
>>-{
>>-     wake_up_process(container_of(cb, struct wait_cb, cb)->task);
>>-}
>>-
>>-static long mock_wait(struct dma_fence *f, bool intr, long timeout)
>>-{
>>-     const int state = intr ? TASK_INTERRUPTIBLE :
>>TASK_UNINTERRUPTIBLE;
>>-     struct wait_cb cb = { .task = current };
>>-
>>-     if (dma_fence_add_callback(f, &cb.cb, mock_wakeup))
>>-             return timeout;
>>-
>>-     while (timeout) {
>>-             set_current_state(state);
>>-
>>-             if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &f->flags))
>>-                     break;
>>-
>>-             if (signal_pending_state(state, current))
>>-                     break;
>>-
>>-             timeout = schedule_timeout(timeout);
>>-     }
>>-     __set_current_state(TASK_RUNNING);
>>-
>>-     if (!dma_fence_remove_callback(f, &cb.cb))
>>-             return timeout;
>>-
>>-     if (signal_pending_state(state, current))
>>-             return -ERESTARTSYS;
>>-
>>-     return -ETIME;
>>-}
>>-
>> static const struct dma_fence_ops mock_ops = {
>>      .get_driver_name = mock_name,
>>      .get_timeline_name = mock_name,
>>-     .wait = mock_wait,
>>      .release = mock_fence_release,
>> };
>>
>>--
>>2.26.2
>>
>>_______________________________________________
>>Intel-gfx mailing list
>>intel-...@lists.freedesktop.org
>>https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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