[PATCH 3/4] drm/nouveau: Simplify nouveau_fence_done()

From: Philipp Stanner
Date: Thu Apr 24 2025 - 09:05:49 EST


nouveau_fence_done() contains an if branch that checks whether a
nouveau_fence has either of the two existing nouveau_fence backend ops,
which will always evaluate to true.

Remove the surplus check.

Signed-off-by: Philipp Stanner <phasta@xxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_fence.c | 24 +++++++++++-------------
1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
index 2b79bcb7da16..fb9811938c82 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -249,21 +249,19 @@ nouveau_fence_emit(struct nouveau_fence *fence)
bool
nouveau_fence_done(struct nouveau_fence *fence)
{
- if (fence->base.ops == &nouveau_fence_ops_legacy ||
- fence->base.ops == &nouveau_fence_ops_uevent) {
- struct nouveau_fence_chan *fctx = nouveau_fctx(fence);
- struct nouveau_channel *chan;
- unsigned long flags;
+ struct nouveau_fence_chan *fctx = nouveau_fctx(fence);
+ struct nouveau_channel *chan;
+ unsigned long flags;

- if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->base.flags))
- return true;
+ if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->base.flags))
+ return true;
+
+ spin_lock_irqsave(&fctx->lock, flags);
+ chan = rcu_dereference_protected(fence->channel, lockdep_is_held(&fctx->lock));
+ if (chan)
+ nouveau_fence_update(chan, fctx);
+ spin_unlock_irqrestore(&fctx->lock, flags);

- spin_lock_irqsave(&fctx->lock, flags);
- chan = rcu_dereference_protected(fence->channel, lockdep_is_held(&fctx->lock));
- if (chan)
- nouveau_fence_update(chan, fctx);
- spin_unlock_irqrestore(&fctx->lock, flags);
- }
return dma_fence_is_signaled(&fence->base);
}

--
2.48.1