From 6b7f1177deeae01a7092c22a89cd41e7b318f01c Mon Sep 17 00:00:00 2001
From: KunYi Chen <kunyi.chen@gmail.com>
Date: Fri, 25 Oct 2024 12:14:39 +0800
Subject: fix: suppress unused warnings when DEBUG disabled

When RT_USING_DEBUG is disabled, variables used only in RT_ASSERT
statements become unused, triggering -Wunused-but-set-variable compiler
warnings. These variables are essential for runtime assertions in debug
builds but appear unused in release builds.

Example:
- Variables used in RT_ASSERT(var != RT_NULL) checks
- Affects multiple drivers and components using RT_ASSERT

This is a general cleanup to improve code compilation without affecting
functionality.
---
 include/rtthread.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include/rtthread.h')

diff --git a/include/rtthread.h b/include/rtthread.h
index 311516bd8b..e6740d46da 100644
--- a/include/rtthread.h
+++ b/include/rtthread.h
@@ -804,7 +804,7 @@ if (!(EX))                                                                    \
     rt_assert_handler(#EX, __FUNCTION__, __LINE__);                           \
 }
 #else
-#define RT_ASSERT(EX)
+#define RT_ASSERT(EX) {RT_UNUSED(EX);}
 #endif /* RT_DEBUGING_ASSERT */
 
 #ifdef RT_DEBUGING_CONTEXT
-- 
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