[PATCH 4/4] drm/nouveau: Check dma_fence in canonical way

[Philipp Stanner]

On Thu, 2025-04-24 at 15:24 +0200, Danilo Krummrich wrote:
> On 4/24/25 3:02 PM, Philipp Stanner wrote:
> > In nouveau_fence_done(), a fence is checked for being signaled by
> > manually evaluating the base fence's bits. This can be done in a
> > canonical manner through dma_fence_is_signaled().
> > 
> > Replace the bit-check with dma_fence_is_signaled().
> > 
> > Signed-off-by: Philipp Stanner <phasta at kernel.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 fb9811938c82..d5654e26d5bc 100644
> > --- a/drivers/gpu/drm/nouveau/nouveau_fence.c
> > +++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
> > @@ -253,7 +253,7 @@ nouveau_fence_done(struct nouveau_fence *fence)
> >   	struct nouveau_channel *chan;
> >   	unsigned long flags;
> >   
> > -	if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence-
> > >base.flags))
> > +	if (dma_fence_is_signaled(&fence->base))
> 
> This is only correct with commit bbe5679f30d7 ("drm/nouveau: Fix
> WARN_ON in
> nouveau_fence_context_kill()") from drm-misc-fixes, correct?

Yup. Otherwise, this series can't be merged anyways, because patch 1
depends on it.

The cover letter says so: "This series is based on this partially
merged series: [1]"

P.