diff --git a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci_reg.h b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci_reg.h
index 3c4a7d4fa..5702efe46 100644
--- a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci_reg.h
+++ b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci_reg.h
@@ -391,11 +391,11 @@ enum {
 #define BARRIER() __asm__ __volatile__("": : :"memory")
 
 #ifdef XHCI_AARCH64
-// #define DSB() __asm__ __volatile__("dsb sy": : : "memory")
-#define DSB() __asm__ volatile("dsb ish\n\t")
+#define DSB() __asm__ __volatile__("dsb sy": : : "memory")
+// #define DSB() __asm__ volatile("dsb ish\n\t")
 #else
-// #define DSB() __asm__ __volatile__("dsb": : : "memory")
-#define DSB() __asm__ volatile("dsb ish\n\t")
+#define DSB() __asm__ __volatile__("dsb": : : "memory")
+// #define DSB() __asm__ volatile("dsb ish\n\t")
 #endif