diff --git a/libs/binder/ndk/include_ndk/android/binder_ibinder.h b/libs/binder/ndk/include_ndk/android/binder_ibinder.h
index a44c261..8941e49 100644
--- a/libs/binder/ndk/include_ndk/android/binder_ibinder.h
+++ b/libs/binder/ndk/include_ndk/android/binder_ibinder.h
@@ -36,11 +36,6 @@
 
 __BEGIN_DECLS
 
-#ifndef __ANDROID_API__
-#error Android builds must be compiled against a specific API. If this is an \
- android platform host build, you must use libbinder_ndk_host_user.
-#endif
-
 typedef uint32_t binder_flags_t;
 enum {
     /**
diff --git a/libs/binder/ndk/include_ndk/android/binder_status.h b/libs/binder/ndk/include_ndk/android/binder_status.h
index 05b25e7..b4dc08a 100644
--- a/libs/binder/ndk/include_ndk/android/binder_status.h
+++ b/libs/binder/ndk/include_ndk/android/binder_status.h
@@ -32,6 +32,16 @@
 
 __BEGIN_DECLS
 
+#ifndef __ANDROID_API__
+#error Android builds must be compiled against a specific API. If this is an \
+ android platform host build, you must use libbinder_ndk_host_user.
+#endif
+
+/**
+ * Low-level status types for use in binder. This is the least preferable way to
+ * return an error for binder services (where binder_exception_t should be used,
+ * particularly EX_SERVICE_SPECIFIC).
+ */
 enum {
     STATUS_OK = 0,
 
@@ -62,6 +72,10 @@
  */
 typedef int32_t binder_status_t;
 
+/**
+ * Top level exceptions types for Android binder errors, mapping to Java
+ * exceptions. Also see Parcel.java.
+ */
 enum {
     EX_NONE = 0,
     EX_SECURITY = -1,
@@ -170,7 +184,8 @@
 /**
  * New status with binder_status_t. This is typically for low level failures when a binder_status_t
  * is returned by an API on AIBinder or AParcel, and that is to be returned from a method returning
- * an AStatus instance.
+ * an AStatus instance. This is the least preferable way to return errors.
+ * Prefer exceptions (particularly service-specific errors) when possible.
  *
  * Available since API level 29.
  *