Apply HighBitSet() in MDE baseLib to retire the internal function CoreHighestSetBit().

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5920 6f19259b-4bc3-4df7-8a09-765794883524

2 files changed, 2 insertions, 46 deletions

diff --git a/MdeModulePkg/Core/Dxe/Event.h b/MdeModulePkg/Core/Dxe/Event.h
index a3b0d67ff7..1709290a9f 100644
--- a/MdeModulePkg/Core/Dxe/Event.h
+++ b/MdeModulePkg/Core/Dxe/Event.h
@@ -84,20 +84,6 @@ CoreDispatchEventNotifies (
 

 

 

-/**

-  Return the highest set bit.

-

-  @param  Number  The value to check

-

-  @return Bit position of the highest set bit

-

-**/

-UINTN

-CoreHighestSetBit (

-  IN UINTN     Number

-  );

-

-

 //

 // Exported functions

 //

diff --git a/MdeModulePkg/Core/Dxe/Event/Tpl.c b/MdeModulePkg/Core/Dxe/Event/Tpl.c
index 5eb4628cb1..43bc8add36 100644
--- a/MdeModulePkg/Core/Dxe/Event/Tpl.c
+++ b/MdeModulePkg/Core/Dxe/Event/Tpl.c
@@ -35,35 +35,6 @@ CoreSetInterruptState (
   }

 }

 

-//

-// Return the highest set bit

-//

-

-/**

-  Return the highest set bit.

-

-  @param  Number  The value to check

-

-  @return Bit position of the highest set bit

-

-**/

-UINTN

-CoreHighestSetBit (

-  IN UINTN     Number

-  )

-{

-  UINTN   Msb;

-

-  Msb = 31;

-  while ((Msb > 0) && ((Number & (UINTN)(1 << Msb)) == 0)) {

-    Msb--;

-  }

-

-  return Msb;

-}

-

-

-

 

 /**

   Raise the task priority level to the new level.

@@ -135,9 +106,8 @@ CoreRestoreTpl (
   //

   // Dispatch any pending events

   //

-

-  while ((-2 << NewTpl) & gEventPending) {

-    gEfiCurrentTpl = CoreHighestSetBit (gEventPending);

+  while (((-2 << NewTpl) & gEventPending) != 0) {

+    gEfiCurrentTpl = HighBitSet64 (gEventPending);

     if (gEfiCurrentTpl < TPL_HIGH_LEVEL) {

       CoreSetInterruptState (TRUE);

     }