commit 20d2679d658ccebb8362c3c78088d898447bb63e
author Baldev Sahu <bsahu@codeaurora.org> Thu Jul 02 18:32:30 2020 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Fri Jul 10 00:35:14 2020 -0700
tree 86cd2358d405d542acb1fa750169d19056ed3eed
parent 97cd61330667628b1365cc4b2e9285832c18a623

hwc: Allow null fence on client taret buffer.

Client keeps track of GPU composition requests and sends -1 fd
if there is no need to re draw.
CRs-Fixed: 2695433

Change-Id: I310d848a32afecdaf52aa23c513565920fe21de2

sdm/libs/hwc2/hwc_display.cpp

diff --git a/sdm/libs/hwc2/hwc_display.cpp b/sdm/libs/hwc2/hwc_display.cpp
index 3eb900d..a4b8344 100644
--- a/sdm/libs/hwc2/hwc_display.cpp
+++ b/sdm/libs/hwc2/hwc_display.cpp
@@ -1165,8 +1165,7 @@
   }
 
   if (acquire_fence == 0) {
-    DLOGW("acquire_fence is zero");
-    return HWC2::Error::BadParameter;
+    DLOGV_IF(kTagClient, "Re-using cached buffer");
   }
 
   Layer *sdm_layer = client_target_->GetSDMLayer();