diff --git a/tests/suites/main_test.function b/tests/suites/main_test.function
index 13d032c..491de6d 100644
--- a/tests/suites/main_test.function
+++ b/tests/suites/main_test.function
@@ -159,31 +159,6 @@
 };
 
 /**
- * \brief        Execute the test function.
- *
- *               This is a wrapper function around the test function execution
- *               to allow the setjmp() call used to catch any calls to the
- *               parameter failure callback, to be used. Calls to setjmp()
- *               can invalidate the state of any local auto variables.
- *
- * \param fp     Function pointer to the test function.
- * \param params Parameters to pass to the #TestWrapper_t wrapper function.
- *
- */
-void execute_function_ptr(TestWrapper_t fp, void **params)
-{
-#if defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
-    mbedtls_test_enable_insecure_external_rng( );
-#endif
-
-    fp( params );
-
-#if defined(MBEDTLS_TEST_MUTEX_USAGE)
-    mbedtls_test_mutex_usage_check( );
-#endif /* MBEDTLS_TEST_MUTEX_USAGE */
-}
-
-/**
  * \brief        Dispatches test functions based on function index.
  *
  * \param func_idx    Test function index.
@@ -203,7 +178,17 @@
     {
         fp = test_funcs[func_idx];
         if ( fp )
-            execute_function_ptr(fp, params);
+        {
+            #if defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
+                mbedtls_test_enable_insecure_external_rng( );
+            #endif
+
+                fp( params );
+
+            #if defined(MBEDTLS_TEST_MUTEX_USAGE)
+                mbedtls_test_mutex_usage_check( );
+            #endif /* MBEDTLS_TEST_MUTEX_USAGE */
+        }
         else
             ret = DISPATCH_UNSUPPORTED_SUITE;
     }