From: Michael Kubacki <[email protected]>

A user may fall through to the case they depend on the
PcdFmpDeviceImageTypeIdGuid value to get the ImageTypeId GUID
value. The default PCD value is 0 (NULL) so the code would
further fall back on the gEfiCallerIdGuid value.

This change modifies the print error level for the message that
indicates this occurred to DEBUG_WARN from DEBUG_INFO to better
warn the user that this occurred.

Cc: Liming Gao <[email protected]>
Cc: Michael D Kinney <[email protected]>
Cc: Guomin Jiang <[email protected]>
Cc: Wei6 Xu <[email protected]>
Signed-off-by: Michael Kubacki <[email protected]>
Reviewed-by: Michael D Kinney <[email protected]>
Reviewed-by: Guomin Jiang <[email protected]>
Reviewed-by: Wei6 Xu <[email protected]>
---

Notes:
    The PCD documentation indicates it is valid behavior for the user
    to fall back to gEfiCallerIdGuid. Is that really expected?

    Would an ASSERT be appropriate?

 FmpDevicePkg/FmpDxe/FmpDxe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/FmpDevicePkg/FmpDxe/FmpDxe.c b/FmpDevicePkg/FmpDxe/FmpDxe.c
index 58841774fee0..14994ce4ee0e 100644
--- a/FmpDevicePkg/FmpDxe/FmpDxe.c
+++ b/FmpDevicePkg/FmpDxe/FmpDxe.c
@@ -3,7 +3,7 @@
   image stored in a firmware device with platform and firmware device specific
   information provided through PCDs and libraries.
 
-  Copyright (c) 2016, Microsoft Corporation. All rights reserved.<BR>
+  Copyright (c) Microsoft Corporation.<BR>
   Copyright (c) 2018 - 2020, Intel Corporation. All rights reserved.<BR>
 
   SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -179,7 +179,7 @@ GetImageTypeIdGuid (
     if (ImageTypeIdGuidSize == sizeof (EFI_GUID)) {
       FmpDeviceLibGuid = (EFI_GUID *)PcdGetPtr (PcdFmpDeviceImageTypeIdGuid);
     } else {
-      DEBUG ((DEBUG_INFO, "FmpDxe(%s): Fall back to ImageTypeIdGuid of 
gEfiCallerIdGuid\n", mImageIdName));
+      DEBUG ((DEBUG_WARN, "FmpDxe(%s): Fall back to ImageTypeIdGuid of 
gEfiCallerIdGuid\n", mImageIdName));
       FmpDeviceLibGuid = &gEfiCallerIdGuid;
     }
   }
-- 
2.27.0.windows.1


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