We should never insert the invalid seqno into the wait tree, so assert
we do not.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/intel_breadcrumbs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_breadcrumbs.c
b/drivers/gpu/drm/i915/intel_breadcrumbs.c
index 6cfffa68f71a..bb985bfc279c 100644
--- a/drivers/gpu/drm/i915/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/intel_breadcrumbs.c
@@ -396,6 +396,8 @@ static bool __intel_engine_add_wait(struct intel_engine_cs
*engine,
bool first, armed;
u32 seqno;
+ GEM_BUG_ON(!wait->seqno);
+
/* Insert the request into the retirement ordered list
* of waiters by walking the rbtree. If we are the oldest
* seqno in the tree (the first to be retired), then
--
2.15.1
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