Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospu...@intel.com>
Daniele On 12/21/2022 8:30 PM, john.c.harri...@intel.com wrote:
From: John Harrison <john.c.harri...@intel.com> A static analyser was complaining about not checking for null pointers. However, the location of the complaint can only be reached in the first place if said pointer is non-null. Basically, if we are using a v69 GuC then the descriptor pool is guaranteed to be alocated at start of day or submission will be disabled with an ENOMEM error. And if we are using a later GuC that does not use a descriptor pool then the v69 submission function would not be called. So, not a possible null at that point in the code. Hence adding a GEM_BUG_ON(!ptr) to keep the tool happy. Signed-off-by: John Harrison <john.c.harri...@intel.com> --- drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index 4682ec1dbd9c0..c93d0594bfd5e 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -2538,6 +2538,7 @@ static void prepare_context_registration_info_v69(struct intel_context *ce) i915_gem_object_is_lmem(ce->ring->vma->obj));desc = __get_lrc_desc_v69(guc, ctx_id);+ GEM_BUG_ON(!desc); desc->engine_class = engine_class_to_guc_class(engine->class); desc->engine_submit_mask = engine->logical_mask; desc->hw_context_desc = ce->lrc.lrca;
