I agree that this implements the similar check as other
optional protocols to adjust driver binding order to skip
checks for which where are no instances of the optional
protocol.
Reviewed-by: Michael D Kinney <michael.d.kin...@intel.com>
> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Zhi Jin
> Sent: Tuesday, January 16, 2024 10:45 PM
> To: devel@edk2.groups.io
> Cc: Jin, Zhi <zhi....@intel.com>; Liming Gao <gaolim...@byosoft.com.cn>;
> Ni, Ray <ray...@intel.com>
> Subject: [edk2-devel] [PATCH 2/2] MdeModulePkg: Optimize
> CoreConnectSingleController
>
> 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 <gaolim...@byosoft.com.cn>
> Cc: Ray Ni <ray...@intel.com>
> Signed-off-by: Zhi Jin <zhi....@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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