From 0e9c6c830f7c2bb162ac285bc144fd7efeda2441 Mon Sep 17 00:00:00 2001
From: Zhao Zhenping <1927818778@qq.com>
Date: Sun, 1 Dec 2024 00:48:47 -0800
Subject: [PATCH] Fix legacy __rt_ffs_tiny()

Some compiler complains value & (value - 1) ^ value
better (value & (value - 1)) ^ value
---
 src/kservice.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/kservice.c b/src/kservice.c
index 11f6202eef6..b1c275e079e 100644
--- a/src/kservice.c
+++ b/src/kservice.c
@@ -1092,7 +1092,7 @@ const rt_uint8_t __lowest_bit_bitmap[] =
  */
 int __rt_ffs(int value)
 {
-    return __lowest_bit_bitmap[(rt_uint32_t)(value & (value - 1) ^ value) % 37];
+    return __lowest_bit_bitmap[(rt_uint32_t)((value & (value - 1)) ^ value) % 37];
 }
 #else
 const rt_uint8_t __lowest_bit_bitmap[] =