[edk2-devel] [PATCH 2/2] MdeModulePkg: Optimize CoreConnectSingleController

["Zhi Jin" <zhi.jin@intel.com>]

CoreConnectSingleController() searches for the Driver Family Override
Protocol drivers by looping and checking each Driver Binding Handles.
This loop can be skipped by checking if any Driver Family Override
Protocol installed in the platform first, to improve the performance.

Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Zhi Jin <zhi.jin@intel.com>
---
 MdeModulePkg/Core/Dxe/Hand/DriverSupport.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/Core/Dxe/Hand/DriverSupport.c b/MdeModulePkg/Core/Dxe/Hand/DriverSupport.c
index 0b824c62b7..64d7474f15 100644
--- a/MdeModulePkg/Core/Dxe/Hand/DriverSupport.c
+++ b/MdeModulePkg/Core/Dxe/Hand/DriverSupport.c
@@ -497,7 +497,12 @@ CoreConnectSingleController (
   //
   // Add the Driver Family Override Protocol drivers for ControllerHandle
   //
-  while (TRUE) {
+  Status = CoreLocateProtocol (
+             &gEfiDriverFamilyOverrideProtocolGuid,
+             NULL,
+             (VOID **)&DriverFamilyOverride
+             );
+  while (!EFI_ERROR (Status) && (DriverFamilyOverride != NULL)) {
     HighestIndex   = DriverBindingHandleCount;
     HighestVersion = 0;
     for (Index = 0; Index < DriverBindingHandleCount; Index++) {
-- 
2.39.2



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