diff --git a/kernel/base/include/los_vm_iomap.h b/kernel/base/include/los_vm_iomap.h
index f73aa89a9f5959269057843b3dfe12c15a24ba6e..1b49251079818bf631829a604d1f99ae75a5f9ce 100644
--- a/kernel/base/include/los_vm_iomap.h
+++ b/kernel/base/include/los_vm_iomap.h
@@ -46,8 +46,8 @@ enum DmaMemType {
     DMA_NOCACHE
 };
 
-#define IS_PERIPH_ADDR(addr)    ((addr >= PERIPH_PMM_BASE) && (addr <= PERIPH_PMM_BASE + PERIPH_PMM_SIZE))
-#define IS_MEMORY_ADDR(addr)    ((addr >= DDR_MEM_ADDR) && (addr <= DDR_MEM_ADDR + DDR_MEM_SIZE))
+#define IS_PERIPH_ADDR(addr)    (((addr) >= U32_C(PERIPH_PMM_BASE)) && ((addr) <= U32_C(PERIPH_PMM_BASE) + U32_C(PERIPH_PMM_SIZE)))
+#define IS_MEMORY_ADDR(addr)    (((addr) >= U32_C(DDR_MEM_ADDR)) && ((addr) <= U32_C(DDR_MEM_ADDR) + U32_C(DDR_MEM_SIZE)))
 
 /* thread safety */
 VOID *LOS_DmaMemAlloc(DMA_ADDR_T *dmaAddr, size_t size, size_t align, enum DmaMemType type);