diff --git a/utils/los_compiler.h b/utils/los_compiler.h
index 543dcf6b..14538a65 100644
--- a/utils/los_compiler.h
+++ b/utils/los_compiler.h
@@ -419,6 +419,7 @@ static inline UINT32 LOS_Align(UINT32 addr, UINT32 boundary)
 #endif
 
 #if defined(__GNUC__)
+#ifndef __XTENSA_LX6__
 static inline void maybe_release_fence(int model)
 {
     switch (model) {
@@ -519,6 +520,7 @@ static inline UINT64 __atomic_exchange_8(volatile void *mem, UINT64 val, int mod
     return ret;
 }
 #endif
+#endif
 
 #ifdef __cplusplus
 #if __cplusplus