MdePkg BaseMemoryLibOptDxe: Add function comment for InternalMemCompareGuid

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
diff --git a/MdePkg/Library/BaseMemoryLibOptDxe/Arm/MemLibGuid.c b/MdePkg/Library/BaseMemoryLibOptDxe/Arm/MemLibGuid.c
index 8f1e50b..47386e9 100644
--- a/MdePkg/Library/BaseMemoryLibOptDxe/Arm/MemLibGuid.c
+++ b/MdePkg/Library/BaseMemoryLibOptDxe/Arm/MemLibGuid.c
@@ -15,6 +15,19 @@
 

 #include "MemLibInternals.h"

 

+/**

+  Internal function to compare two GUIDs.

+

+  This function compares Guid1 to Guid2.  If the GUIDs are identical then TRUE is returned.

+  If there are any bit differences in the two GUIDs, then FALSE is returned.

+

+  @param  Guid1       A pointer to a 128 bit GUID.

+  @param  Guid2       A pointer to a 128 bit GUID.

+

+  @retval TRUE        Guid1 and Guid2 are identical.

+  @retval FALSE       Guid1 and Guid2 are not identical.

+

+**/

 BOOLEAN

 EFIAPI

 InternalMemCompareGuid (