From f7bf241334e7ea8ffaf6769d30dccbd215d74461 Mon Sep 17 00:00:00 2001
From: Daniele Lacamera <root@danielinux.net>
Date: Wed, 10 Jun 2026 16:23:31 +0200
Subject: [PATCH] Guard mcxn UDS zeroize helper

---
 hal/mcxn.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hal/mcxn.c b/hal/mcxn.c
index 72d55a3b..da96b747 100644
--- a/hal/mcxn.c
+++ b/hal/mcxn.c
@@ -71,12 +71,14 @@
 #include <wolfssl/wolfcrypt/sha256.h>
 #include <wolfssl/wolfcrypt/sha512.h>
 
+#ifdef WOLFBOOT_UDS_UID_FALLBACK_FORTEST
 static NOINLINEFUNCTION void hal_uds_zeroize(void *ptr, size_t len)
 {
     volatile uint8_t *p = (volatile uint8_t *)ptr;
     while (len-- > 0U)
         *p++ = 0U;
 }
+#endif
 
 /* Derive UDS from device UUID for software DICE testing.
  * NOT secure — UUID is publicly observable. Only enabled with