linux-kernel - [PATCH 2/2] drm/nouveau: Don't signal when killing the fence context

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Message-ID: <20250522112540.161411-3-phasta@kernel.org>
Date: Thu, 22 May 2025 13:25:41 +0200
From: Philipp Stanner <phasta@...nel.org>
To: Lyude Paul <lyude@...hat.com>,
	Danilo Krummrich <dakr@...nel.org>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Sumit Semwal <sumit.semwal@...aro.org>,
	Christian König <christian.koenig@....com>
Cc: dri-devel@...ts.freedesktop.org,
	nouveau@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	linux-media@...r.kernel.org,
	Philipp Stanner <phasta@...nel.org>
Subject: [PATCH 2/2] drm/nouveau: Don't signal when killing the fence context

dma_fence_is_signaled_locked(), which is used in
nouveau_fence_context_kill(), can signal fences below the surface
through a callback.

There is neither need for nor use in doing that when killing a fence
context.

Replace dma_fence_is_signaled_locked() with __dma_fence_is_signaled(), a
function which only checks, never signals.

Signed-off-by: Philipp Stanner <phasta@...nel.org>
---
 drivers/gpu/drm/nouveau/nouveau_fence.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
index d5654e26d5bc..993b3dcb5db0 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -88,7 +88,7 @@ nouveau_fence_context_kill(struct nouveau_fence_chan *fctx, int error)
 
 	spin_lock_irqsave(&fctx->lock, flags);
 	list_for_each_entry_safe(fence, tmp, &fctx->pending, head) {
-		if (error && !dma_fence_is_signaled_locked(&fence->base))
+		if (error && !__dma_fence_is_signaled(&fence->base))
 			dma_fence_set_error(&fence->base, error);
 
 		if (nouveau_fence_signal(fence))
-- 
2.49.0