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drm/i915: Tidy awaiting on dma-fences
author
Chris Wilson
<chris@chris-wilson.co.uk>
Mon, 11 May 2020 07:57:07 +0000
(08:57 +0100)
committer
Chris Wilson
<chris@chris-wilson.co.uk>
Mon, 11 May 2020 11:56:45 +0000
(12:56 +0100)
Just tidy up the return handling for completed dma-fences. While it may
return errors for invalid fence, we already know that we have a good
fence and the only error will be an already signaled fence.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link:
https://patchwork.freedesktop.org/patch/msgid/20200511075722.13483-5-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_sw_fence.c
patch
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diff --git
a/drivers/gpu/drm/i915/i915_sw_fence.c
b/drivers/gpu/drm/i915/i915_sw_fence.c
index
7daf81f
..
295b982
100644
(file)
--- a/
drivers/gpu/drm/i915/i915_sw_fence.c
+++ b/
drivers/gpu/drm/i915/i915_sw_fence.c
@@
-546,13
+546,11
@@
int __i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence,
cb->fence = fence;
i915_sw_fence_await(fence);
- ret = dma_fence_add_callback(dma, &cb->base, __dma_i915_sw_fence_wake);
- if (ret == 0) {
- ret = 1;
- } else {
+ ret = 1;
+ if (dma_fence_add_callback(dma, &cb->base, __dma_i915_sw_fence_wake)) {
+ /* fence already signaled */
__dma_i915_sw_fence_wake(dma, &cb->base);
- if (ret == -ENOENT) /* fence already signaled */
- ret = 0;
+ ret = 0;
}
return ret;