Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 11/12] Revert "drm/i915/gt: Propagate change in error status to children on unhold" | Date | Thu, 4 Nov 2021 15:12:37 +0100 |
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From: Matthew Brost <matthew.brost@intel.com>
commit ac653dd7996edf1770959e11a078312928bd7315 upstream.
Propagating errors to dependent fences is broken and can lead to errors from one client ending up in another. In commit 3761baae908a ("Revert "drm/i915: Propagate errors on awaiting already signaled fences""), we attempted to get rid of fence error propagation but missed the case added in commit 8e9f84cf5cac ("drm/i915/gt: Propagate change in error status to children on unhold"). Revert that one too. This error was found by an up-and-coming selftest which triggers a reset during request cancellation and verifies that subsequent requests complete successfully.
v2: (Daniel Vetter) - Use revert v3: (Jason) - Update commit message
v4 (Daniele): - fix checkpatch error in commit message.
Signed-off-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210909164744.31249-8-matthew.brost@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/gpu/drm/i915/gt/intel_execlists_submission.c | 4 ---- 1 file changed, 4 deletions(-)
--- 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 i9 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;
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