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From: "Laszlo Ersek" <lersek@redhat.com>
To: edk2-devel-groups-io <devel@edk2.groups.io>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>,
	Leif Lindholm <quic_llindhol@quicinc.com>,
	Wenyi Xie <xiewenyi2@huawei.com>
Subject: [edk2-devel] [edk2-platforms PATCH 10/19] Hisilicon/DS3231RealTimeClockLib: drop LibRtcVirtualNotifyEvent
Date: Thu, 12 Oct 2023 11:09:41 +0200	[thread overview]
Message-ID: <20231012090950.108577-11-lersek@redhat.com> (raw)
In-Reply-To: <20231012090950.108577-1-lersek@redhat.com>

The RealTimeClockLib class header in edk2 mistakenly declares a function
called LibRtcVirtualNotifyEvent(). No component ever calls this function
crossing module boundaries; all RealTimeClockLib instances in edk2 and
edk2-platforms are supposed to register (and do register) their
SetVirtualAddressMap() notification functions.

In particular, DS3231RealTimeClockLib *itself* doesn't even use
LibRtcVirtualNotifyEvent() -- the function is defined with an empty body,
clearly in an understandable, but misguided, attempt, to conform to the
(bogus) library interface. Remove the function.

Build-tested only (with the Hisilicon platforms).

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Wenyi Xie <xiewenyi2@huawei.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4564
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
---
 Platform/Hisilicon/D03/Library/DS3231RealTimeClockLib/DS3231RealTimeClockLib.c | 25 --------------------
 1 file changed, 25 deletions(-)

diff --git a/Platform/Hisilicon/D03/Library/DS3231RealTimeClockLib/DS3231RealTimeClockLib.c b/Platform/Hisilicon/D03/Library/DS3231RealTimeClockLib/DS3231RealTimeClockLib.c
index 898335a7b73f..3a84b6e9297b 100644
--- a/Platform/Hisilicon/D03/Library/DS3231RealTimeClockLib/DS3231RealTimeClockLib.c
+++ b/Platform/Hisilicon/D03/Library/DS3231RealTimeClockLib/DS3231RealTimeClockLib.c
@@ -471,28 +471,3 @@ LibRtcInitialize (
 
   return Status;
 }
-
-
-/**
-  Fixup internal data so that EFI can be call in virtual mode.
-  Call the passed in Child Notify event and convert any pointers in
-  lib to virtual mode.
-
-  @param[in]    Event   The Event that is being processed
-  @param[in]    Context Event Context
-**/
-VOID
-EFIAPI
-LibRtcVirtualNotifyEvent (
-  IN EFI_EVENT        Event,
-  IN VOID             *Context
-  )
-{
-  //
-  // Only needed if you are going to support the OS calling RTC functions in virtual mode.
-  // You will need to call EfiConvertPointer (). To convert any stored physical addresses
-  // to virtual address. After the OS transitions to calling in virtual mode, all future
-  // runtime calls will be made in virtual mode.
-  //
-  return;
-}



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  parent reply	other threads:[~2023-10-12  9:10 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-12  9:08 [edk2-devel] EmbeddedPkg/RealTimeClockLib: drop LibRtcVirtualNotifyEvent from lib class Laszlo Ersek
2023-10-12  9:09 ` [edk2-devel] [edk2-platforms PATCH 00/19] let LibRtcVirtualNotifyEvent() be dropped Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 01/19] Hisilicon: enable NOOPT builds Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 02/19] Hisilicon/FlashFvbDxe: fix PcdNorFlashCheckBlockLocked token space GUID Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 03/19] Hisilicon.dsc.inc: resolve VariableFlashInfoLib Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 04/19] Hisilicon: rename OemMiscLib class to HisiOemMiscLib Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 05/19] Hisilicon: add missing include file to Pptt components Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 06/19] Hisilicon/Hi1620AcpiTables: fix up ASL Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 07/19] Hisilicon/ProcessorSubClassDxe: drop conflicting PROCESSOR_STATUS_DATA type Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 08/19] Hisilicon: drop unused DS3231RealTimeClockLib instance Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 09/19] Hisilicon: drop unused VirtualRealTimeClockLib instance Laszlo Ersek
2023-10-12  9:09   ` Laszlo Ersek [this message]
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 11/19] Hisilicon/RX8900RealTimeClockLib: drop LibRtcVirtualNotifyEvent Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 12/19] AmpereAltraPkg/Ac01PcieLib: fix compilation error Laszlo Ersek
2023-10-13  2:20     ` Nhi Pham via groups.io
2023-10-13  3:24       ` Nhi Pham via groups.io
2023-10-13 20:37         ` Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 13/19] JadePkg/PCF85063RealTimeClockLib: hide LibRtcVirtualNotifyEvent Laszlo Ersek
2023-10-13  2:24     ` Nhi Pham via groups.io
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 14/19] LoongArchQemuPkg/LsRealTimeClockLib: " Laszlo Ersek
2023-10-12 12:14     ` xianglai
2023-10-12 12:25       ` Chao Li
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 15/19] Styx/RealTimeClockLib: " Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 16/19] Armada7k8k/RealTimeClockLib: " Laszlo Ersek
2023-10-12 14:32     ` Marcin Wojtas via groups.io
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 17/19] NXP/Pcf8563RealTimeClockLib: " Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 18/19] FT2000-4Pkg/RealTimeClockLib: " Laszlo Ersek
2023-10-12  9:09   ` [edk2-devel] [edk2-platforms PATCH 19/19] Omap35xxPkg/RealTimeClockLib: drop LibRtcVirtualNotifyEvent Laszlo Ersek
2023-10-13 10:12   ` [edk2-devel] [edk2-platforms PATCH 00/19] let LibRtcVirtualNotifyEvent() be dropped Ard Biesheuvel
2023-10-13 20:42     ` Laszlo Ersek
2023-10-12  9:10 ` [edk2-devel] [edk2-non-osi PATCH 0/1] Hisilicon: rename OemMiscLib class dependencies to HisiOemMiscLib Laszlo Ersek
2023-10-12  9:10   ` [edk2-devel] [edk2-non-osi PATCH 1/1] " Laszlo Ersek
2023-10-12  9:10 ` [edk2-devel] [PATCH 0/5] EmbeddedPkg/RealTimeClockLib: drop LibRtcVirtualNotifyEvent from lib class Laszlo Ersek
2023-10-12  9:10   ` [edk2-devel] [PATCH 1/5] PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe: rename LibRtcVirtualNotifyEvent Laszlo Ersek
2023-10-12 12:33     ` Sami Mujawar
2023-10-18 13:42       ` Laszlo Ersek
2023-10-18 15:15         ` Sami Mujawar
2023-10-18 15:19           ` Laszlo Ersek
2023-10-12  9:10   ` [edk2-devel] [PATCH 2/5] ArmPlatformPkg/PL031RealTimeClockLib: hide LibRtcVirtualNotifyEvent Laszlo Ersek
2023-10-12 12:31     ` Sami Mujawar
2023-10-12  9:10   ` [edk2-devel] [PATCH 3/5] EmbeddedPkg/TemplateRealTimeClockLib: drop LibRtcVirtualNotifyEvent Laszlo Ersek
2023-10-12  9:10   ` [edk2-devel] [PATCH 4/5] EmbeddedPkg/VirtualRealTimeClockLib: " Laszlo Ersek
2023-10-12  9:10   ` [edk2-devel] [PATCH 5/5] EmbeddedPkg/RealTimeClockLib: drop LibRtcVirtualNotifyEvent from lib class Laszlo Ersek
2023-10-18 13:42   ` [edk2-devel] [PATCH 0/5] " Laszlo Ersek
2023-10-18 13:44     ` Ard Biesheuvel
2023-10-18 17:03       ` Laszlo Ersek

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