diff --git a/libvndksupport/include/vndksupport/linker.h b/libvndksupport/include/vndksupport/linker.h
index 5f48c39..6845135 100644
--- a/libvndksupport/include/vndksupport/linker.h
+++ b/libvndksupport/include/vndksupport/linker.h
@@ -20,15 +20,8 @@
 extern "C" {
 #endif
 
-/*
- * Returns whether the current process is a vendor process.
- *
- * Note that this is only checking what process is running and has nothing to
- * do with what namespace the caller is loaded at.  For example, a VNDK-SP
- * library loaded by SP-HAL calling this function may still get a 'false',
- * because it is running in a system process.
- */
-int android_is_in_vendor_process();
+int android_is_in_vendor_process() __attribute__((
+        deprecated("This function would not give exact result if VNDK is deprecated.")));
 
 void* android_load_sphal_library(const char* name, int flag);
 
diff --git a/libvndksupport/libvndksupport.map.txt b/libvndksupport/libvndksupport.map.txt
index 1d94b9d..fc2502d 100644
--- a/libvndksupport/libvndksupport.map.txt
+++ b/libvndksupport/libvndksupport.map.txt
@@ -1,6 +1,6 @@
 LIBVNDKSUPPORT {
   global:
-    android_is_in_vendor_process; # llndk systemapi
+    android_is_in_vendor_process; # systemapi
     android_load_sphal_library; # llndk systemapi
     android_unload_sphal_library; # llndk systemapi
   local: