MdePkg: Use VENDOR_DEVICE_PATH structure for Debug Port device path

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1229

When converting DebugPort device path from text,
current code use VENDOR_DEFINED_MESSAGING_DEVICE_PATH structure
for Debug port device node.
typedef struct {
  EFI_DEVICE_PATH_PROTOCOL  Header;
  EFI_GUID                  Guid;
  UINT8                     VendorDefinedData[1];
} VENDOR_DEFINED_MESSAGING_DEVICE_PATH;

And Debugport Device Path is a vendor-defined messaging
device path with no data, only a GUID. So it's better to
use VENDOR_DEVICE_PATH to create the Debug port device node.
typedef struct {
  EFI_DEVICE_PATH_PROTOCOL        Header;
  EFI_GUID                        Guid;
} VENDOR_DEVICE_PATH;

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
index c5f3764fc0..49da8268eb 100644
--- a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
+++ b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
@@ -1758,12 +1758,12 @@ DevPathFromTextDebugPort (
   IN CHAR16 *TextDeviceNode

   )

 {

-  VENDOR_DEFINED_MESSAGING_DEVICE_PATH  *Vend;

+  VENDOR_DEVICE_PATH  *Vend;

 

-  Vend = (VENDOR_DEFINED_MESSAGING_DEVICE_PATH *) CreateDeviceNode (

+  Vend = (VENDOR_DEVICE_PATH *) CreateDeviceNode (

                                                     MESSAGING_DEVICE_PATH,

                                                     MSG_VENDOR_DP,

-                                                    (UINT16) sizeof (VENDOR_DEFINED_MESSAGING_DEVICE_PATH)

+                                                    (UINT16) sizeof (VENDOR_DEVICE_PATH)

                                                     );

 

   CopyGuid (&Vend->Guid, &gEfiDebugPortProtocolGuid);