diff --git a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbHub.c b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbHub.c
index 2dfc5751d5..e0f67dd1d9 100644
--- a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbHub.c
+++ b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbHub.c
@@ -205,7 +205,6 @@ UsbHubCtrlClearTTBuffer (
 
   @param  HubDev                The hub device.
   @param  Buf                   The buffer to hold the descriptor.
-  @param  Len                   The length to retrieve.
 
   @retval EFI_SUCCESS           The hub descriptor is retrieved.
   @retval Others                Failed to retrieve the hub descriptor.
diff --git a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.h b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.h
index 1596ece776..e0a32ca8ee 100644
--- a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.h
+++ b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.h
@@ -12,6 +12,9 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
 **/
 
+#ifndef _EFI_USBMASS_DISKINFO_H_
+#define _EFI_USBMASS_DISKINFO_H_
+
 /**
   Initialize the installation of DiskInfo protocol.
 
@@ -123,3 +126,4 @@ UsbDiskInfoWhichIde (
   OUT UINT32                   *IdeDevice
   );
 
+#endif