[PATCH v2 1/6] ArmVirtPkg/QemuFwCfgLib: remove superfluous InternalQemuFwCfgIsAvailable()

[Laszlo Ersek <lersek@redhat.com>]

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>
---
 ArmVirtPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c | 31 ++++----------------
 1 file changed, 6 insertions(+), 25 deletions(-)

diff --git a/ArmVirtPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c b/ArmVirtPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c
index 8ecbe3fb5fe6..2fd8d9050566 100644
--- a/ArmVirtPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c
+++ b/ArmVirtPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c
@@ -75,25 +75,6 @@ typedef struct {
 
 
 /**
-  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;
   }
 
-- 
2.9.2