From: Laszlo Ersek <lersek@redhat.com>
Date: Mon, 21 Dec 2020 11:36:56 +0000 (+0100)
Subject: ArmPlatformPkg/PL031RealTimeClockLib: cast EfiTimeToEpoch() val. to UINT32
X-Git-Tag: edk2-stable202102~317
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=3af6c521d9c1b195a6105169df92c0b3a8107e39;p=mirror_edk2.git

ArmPlatformPkg/PL031RealTimeClockLib: cast EfiTimeToEpoch() val. to UINT32

In preparation for changing EfiTimeToEpoch()'s return type to UINTN, cast
EfiTimeToEpoch()'s retval to UINT32 explicitly, in LibSetTime().

Currently, this is a no-op, and even after widening the retval, it will
make no difference, as LibSetTime() explicitly restricts Time->Year under
2106, given that "the PL031 is a 32-bit counter counting seconds". The
patch is made for preventing compiler warnings.

Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20201221113657.6779-2-lersek@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
---

diff --git a/ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.c b/ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.c
index 0df4ceb1cb..3afef4bf9a 100644
--- a/ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.c
+++ b/ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.c
@@ -200,7 +200,7 @@ LibSetTime (
     }
   }
 
-  EpochSeconds = EfiTimeToEpoch (Time);
+  EpochSeconds = (UINT32)EfiTimeToEpoch (Time);
 
   // Adjust for the correct time zone, i.e. convert to UTC time zone
   // The timezone setting also reflects the DST setting of the clock