chromeos-base/nnapi/files/00006-libhidl-cast-interface.patch

Create an alternate implementation of castInterface<> that doesn't depend on
any of the hwbinder / remote object layer. Makes the assumption that we
will not be dealing with remoteable objects.

diff --git a/platform2/aosp/system/libhidl/transport/include/hidl/HidlTransportSupport.h b/platform2/aosp/system/libhidl/transport/include/hidl/HidlTransportSupport.h
index 454a4e5..d60dd0d 100644
--- a/platform2/aosp/system/libhidl/transport/include/hidl/HidlTransportSupport.h
+++ b/platform2/aosp/system/libhidl/transport/include/hidl/HidlTransportSupport.h
@@ -18,7 +18,6 @@
 #define ANDROID_HIDL_TRANSPORT_SUPPORT_H

 #include <android/hidl/base/1.0/IBase.h>
-#include <hidl/HidlBinderSupport.h>
 #include <hidl/HidlPassthroughSupport.h>
 #include <hidl/HidlSupport.h>
 #include <hidl/HidlTransportUtils.h>
@@ -130,7 +129,7 @@ int32_t getPidIfSharable();
 // 3. !emitError, calling into parent fails.
 // Return an error Return object if:
 // 1. emitError, calling into parent fails.
-template <typename IChild, typename IParent, typename BpChild>
+template <typename IChild, typename IParent>
 Return<sp<IChild>> castInterface(sp<IParent> parent, const char* childIndicator, bool emitError) {
     if (parent.get() == nullptr) {
         // casts always succeed with nullptrs.
@@ -147,11 +146,6 @@ Return<sp<IChild>> castInterface(sp<IParent> parent, const char* childIndicator,
     if (!canCastRet) {
         return sp<IChild>(nullptr); // cast failed.
     }
-    // TODO b/32001926 Needs to be fixed for socket mode.
-    if (parent->isRemote()) {
-        // binderized mode. Got BpChild. grab the remote and wrap it.
-        return sp<IChild>(new BpChild(getOrCreateCachedBinder(parent.get())));
-    }
     // Passthrough mode. Got BnChild or BsChild.
     return sp<IChild>(static_cast<IChild *>(parent.get()));
 }
@@ -168,11 +162,6 @@ sp<IType> getServiceInternal(const std::string& instance, bool retry, bool getSt
         return nullptr;
     }

-    if (base->isRemote()) {
-        // getRawServiceInternal guarantees we get the proper class
-        return sp<IType>(new BpType(getOrCreateCachedBinder(base.get())));
-    }
-
     return IType::castFrom(base);
 }