On 08/04/2019 10:17, Chris Wilson wrote:
Replace the WARN with a simple if() + error message to squech the sparse
warning that entire wait_for() macro was being stringified:

drivers/gpu/drm/i915/intel_guc_submission.c:658:9: error: too long token 
expansion

Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
  drivers/gpu/drm/i915/intel_guc_submission.c | 7 ++++---
  1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c 
b/drivers/gpu/drm/i915/intel_guc_submission.c
index c58922226d47..42fcd622d7a3 100644
--- a/drivers/gpu/drm/i915/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/intel_guc_submission.c
@@ -650,9 +650,10 @@ static void wait_for_guc_preempt_report(struct 
intel_engine_cs *engine)
        struct guc_ctx_report *report =
                &data->preempt_ctx_report[engine->guc_id];
- WARN_ON(wait_for_atomic(report->report_return_status ==
-                               INTEL_GUC_REPORT_STATUS_COMPLETE,
-                               GUC_PREEMPT_POSTPROCESS_DELAY_MS));
+       if (wait_for_atomic(report->report_return_status ==
+                           INTEL_GUC_REPORT_STATUS_COMPLETE,
+                           GUC_PREEMPT_POSTPROCESS_DELAY_MS))
+               DRM_ERROR("Timed out waiting for GuC preemption report\n");
        /*
         * GuC is expecting that we're also going to clear the affected context
         * counter, let's also reset the return status to not depend on GuC


Reviewed-by: Tvrtko Ursulin <tvrtko.ursu...@intel.com>

Regards,

Tvrtko
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