From 58fb284c52b6262b9bd43420aa39124c39e2342a Mon Sep 17 00:00:00 2001 From: Lucas De Marchi Date: Wed, 16 Feb 2022 09:41:42 -0800 Subject: [PATCH] drm/i915/guc: Replace check for golden context size MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In the other places in this function, guc->ads_map is being protected from access when it's not yet set. However the last check is actually about guc->ads_golden_ctxt_size been set before. These checks should always match as the size is initialized on the first call to guc_prep_golden_context(), but it's clearer if we have a single return and check for guc->ads_golden_ctxt_size. This is just a readability improvement, no change in behavior. Cc: Matt Roper Cc: Thomas Hellström Cc: Daniel Vetter Cc: John Harrison Cc: Matthew Brost Cc: Daniele Ceraolo Spurio Signed-off-by: Lucas De Marchi Reviewed-by: Matthew Brost Link: https://patchwork.freedesktop.org/patch/msgid/20220216174147.3073235-12-lucas.demarchi@intel.com --- drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c index 0077a63832ad..b739781bd133 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c @@ -500,10 +500,10 @@ static int guc_prep_golden_context(struct intel_guc *guc) addr_ggtt += alloc_size; } - if (iosys_map_is_null(&guc->ads_map)) - return total_size; + /* Make sure current size matches what we calculated previously */ + if (guc->ads_golden_ctxt_size) + GEM_BUG_ON(guc->ads_golden_ctxt_size != total_size); - GEM_BUG_ON(guc->ads_golden_ctxt_size != total_size); return total_size; }