[PATCH 06/22] drm/i915/execlists: Do not propagate errors to dependent fences

Matthew Brost matthew.brost at intel.com
Sun Aug 15 23:37:50 UTC 2021


Progagating errors to dependent fences is wrong, don't do it. Selftest
in following patch exposes this bug.

Fixes: 8e9f84cf5cac ("drm/i915/gt: Propagate change in error status to children on unhold")
Signed-off-by: Matthew Brost <matthew.brost at intel.com>
Cc: <stable at vger.kernel.org>
---
 drivers/gpu/drm/i915/gt/intel_execlists_submission.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
index de5f9c86b9a4..cafb0608ffb4 100644
--- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
@@ -2140,10 +2140,6 @@ static void __execlists_unhold(struct i915_request *rq)
 			if (p->flags & I915_DEPENDENCY_WEAK)
 				continue;
 
-			/* Propagate any change in error status */
-			if (rq->fence.error)
-				i915_request_set_error_once(w, rq->fence.error);
-
 			if (w->engine != rq->engine)
 				continue;
 
-- 
2.32.0



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