diff --git a/src/util/src/tcache.c b/src/util/src/tcache.c
index e1ba80c9d0347f23418db2d5185a1f2585f08ba9..54a4b289b76ceb68b2e0213e67d69a7ec1f92271 100644
--- a/src/util/src/tcache.c
+++ b/src/util/src/tcache.c
@@ -30,14 +30,6 @@ static FORCE_INLINE void __cache_wr_lock(SCacheObj *pCacheObj) {
 #endif
 }
 
-static FORCE_INLINE void __cache_rd_lock(SCacheObj *pCacheObj) {
-#if defined(LINUX)
-  pthread_rwlock_rdlock(&pCacheObj->lock);
-#else
-  pthread_mutex_lock(&pCacheObj->lock);
-#endif
-}
-
 static FORCE_INLINE void __cache_unlock(SCacheObj *pCacheObj) {
 #if defined(LINUX)
   pthread_rwlock_unlock(&pCacheObj->lock);