Sean reported that VS2019 build produce the following build error: INFO - PvScsi.c INFO - Generating code INFO - d:\a\1\s\OvmfPkg\PvScsiDxe\PvScsi.c(459): error C2220: the following warning is treated as an error INFO - d:\a\1\s\OvmfPkg\PvScsiDxe\PvScsi.c(459): warning C4244: '=': conversion from 'const UINT16' to 'UINT8', possible loss of data This result from an implicit cast from PVSCSI Response->ScsiStatus (Which is UINT16) to Packet->TargetResponse (Which is UINT8). Fix this issue by adding an appropriate explicit cast and verify with assert that this truncation do not result in loss of data. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2651 Reported-by: Sean Brogan <sean.brogan@microsoft.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200331110452.51992-1-liran.alon@oracle.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> [lersek@redhat.com: rewrap VS2019 diags in commit msg for PatchCheck.py]