From: Laszlo Ersek <lersek@redhat.com>
Date: Wed, 30 Nov 2016 09:07:06 +0000 (+0100)
Subject: ArmVirtPkg/QemuFwCfgLib: remove superfluous InternalQemuFwCfgIsAvailable()
X-Git-Tag: edk2-stable201903~5006
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=1cb33be961b48a1094d27028761343f146d9e20c;hp=209b8f3c2710ee215daf6a044b5346743cbc05df

ArmVirtPkg/QemuFwCfgLib: remove superfluous InternalQemuFwCfgIsAvailable()

InternalQemuFwCfgIsAvailable() is an API that is incorrectly exposed by
the "OvmfPkg/Include/Library/QemuFwCfgLib.h" library class header; the API
is meant to be used internally to library instances (if it's needed at
all). ArmVirtPkg's instance has no use for it actually, so simplify the
code and remove the function definition.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---

diff --git a/ArmVirtPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c b/ArmVirtPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c
index 8ecbe3fb5f..2fd8d90505 100644
--- a/ArmVirtPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c
+++ b/ArmVirtPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c
@@ -74,25 +74,6 @@ typedef struct {
 #define FW_CFG_DMA_CTL_SELECT BIT3
 
 
-/**
-  Returns a boolean indicating if the firmware configuration interface is
-  available for library-internal purposes.
-
-  This function never changes fw_cfg state.
-
-  @retval TRUE   The interface is available internally.
-  @retval FALSE  The interface is not available internally.
-**/
-BOOLEAN
-EFIAPI
-InternalQemuFwCfgIsAvailable (
-  VOID
-  )
-{
-  return (BOOLEAN)(mFwCfgSelectorAddress != 0 && mFwCfgDataAddress != 0);
-}
-
-
 /**
   Returns a boolean indicating if the firmware configuration interface
   is available or not.
@@ -109,7 +90,7 @@ QemuFwCfgIsAvailable (
   VOID
   )
 {
-  return InternalQemuFwCfgIsAvailable ();
+  return (BOOLEAN)(mFwCfgSelectorAddress != 0 && mFwCfgDataAddress != 0);
 }
 
 
@@ -187,7 +168,7 @@ QemuFwCfgInitialize (
     FwCfgDmaAddress = 0;
   }
 
-  if (InternalQemuFwCfgIsAvailable ()) {
+  if (QemuFwCfgIsAvailable ()) {
     UINT32 Signature;
 
     QemuFwCfgSelectItem (QemuFwCfgItemSignature);
@@ -231,7 +212,7 @@ QemuFwCfgSelectItem (
   IN FIRMWARE_CONFIG_ITEM QemuFwCfgItem
   )
 {
-  if (InternalQemuFwCfgIsAvailable ()) {
+  if (QemuFwCfgIsAvailable ()) {
     MmioWrite16 (mFwCfgSelectorAddress, SwapBytes16 ((UINT16)QemuFwCfgItem));
   }
 }
@@ -360,7 +341,7 @@ QemuFwCfgReadBytes (
   IN VOID  *Buffer
   )
 {
-  if (InternalQemuFwCfgIsAvailable ()) {
+  if (QemuFwCfgIsAvailable ()) {
     InternalQemuFwCfgReadBytes (Size, Buffer);
   } else {
     ZeroMem (Buffer, Size);
@@ -384,7 +365,7 @@ QemuFwCfgWriteBytes (
   IN VOID                   *Buffer
   )
 {
-  if (InternalQemuFwCfgIsAvailable ()) {
+  if (QemuFwCfgIsAvailable ()) {
     UINTN Idx;
 
     for (Idx = 0; Idx < Size; ++Idx) {
@@ -494,7 +475,7 @@ QemuFwCfgFindFile (
   UINT32 Count;
   UINT32 Idx;
 
-  if (!InternalQemuFwCfgIsAvailable ()) {
+  if (!QemuFwCfgIsAvailable ()) {
     return RETURN_UNSUPPORTED;
   }