From dd7fc5b8eb1b3fe48a5da6db1c0fd85e738147f5 Mon Sep 17 00:00:00 2001
From: Bjarne von Horn <vh@igh.de>
Date: Mon, 12 Feb 2024 09:53:08 +0100
Subject: [PATCH] Add --enable-driver-resource-verifying option

verify that ecdev pointer in native drivers is dereferenced after it has been initialized by ecdev_offer().
---
 configure.ac | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/configure.ac b/configure.ac
index 071070fa..04b78bf4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -163,6 +163,37 @@ AC_SUBST(INSTALL_MOD_DIR,[$moddir])
 AC_MSG_CHECKING([for Linux modules installation directory])
 AC_MSG_RESULT([$INSTALL_MOD_DIR])
 
+#-----------------------------------------------------------------------------
+# Native driver resource (de)allocation verifying
+#-----------------------------------------------------------------------------
+
+AC_MSG_CHECKING([whether to verify native driver resources])
+
+AC_ARG_ENABLE([driver-resource-verifying],
+    AS_HELP_STRING([--enable-driver-resource-verifying],
+                   [Verify resource (de-)allocation in native drivers]),
+    [
+        case "${enableval}" in
+            yes) enableverifying=1
+                ;;
+            no) enableverifying=0
+                ;;
+            *) AC_MSG_ERROR([Invalid value for --enable-driver-resource-verifying])
+                ;;
+        esac
+    ],
+    [enableverifying=0]
+)
+
+if test "x$enableverifying" = "x1"; then
+    AC_MSG_RESULT([yes])
+else
+    AC_MSG_RESULT([no])
+fi
+
+AM_CONDITIONAL(ENABLE_DRIVER_RESOURCE_VERIFYING, test "x$enableverifying" = "x1")
+AC_SUBST(ENABLE_DRIVER_RESOURCE_VERIFYING,[$enableverifying])
+
 #-----------------------------------------------------------------------------
 # Generic Ethernet driver
 #-----------------------------------------------------------------------------