Merge "libbinder RPC: Trusty always use stable wire proto" am: 4bcaeb12ea

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2541634

Change-Id: I934697268353de2f228712e31fc4907146cb53bb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/libs/binder/trusty/RpcServerTrusty.cpp b/libs/binder/trusty/RpcServerTrusty.cpp
index 3a99606..68b0008 100644
--- a/libs/binder/trusty/RpcServerTrusty.cpp
+++ b/libs/binder/trusty/RpcServerTrusty.cpp
@@ -65,6 +65,10 @@
     mTipcPort.msg_queue_len = 6; // Three each way
     mTipcPort.priv = this;
 
+    // TODO(b/266741352): follow-up to prevent needing this in the future
+    // Trusty needs to be set to the latest stable version that is in prebuilts there.
+    mRpcServer->setProtocolVersion(0);
+
     if (mPortAcl) {
         // Initialize the array of pointers to uuids.
         // The pointers in mUuidPtrs should stay valid across moves of