Reviewed-by: Ruiyu Ni <ruiyu...@intel.com>

Thanks/Ray

> -----Original Message-----
> From: edk2-devel <edk2-devel-boun...@lists.01.org> On Behalf Of shenglei
> Sent: Wednesday, August 8, 2018 4:47 PM
> To: edk2-devel@lists.01.org
> Cc: Dong, Eric <eric.d...@intel.com>; Zeng, Star <star.z...@intel.com>
> Subject: [edk2] [PATCH 15/26] MdeModulePkg UsbBusPei: Remove
> redundant functions
> 
> The functions that are never called have been removed.
> They are PeiHubSetHubFeature,IsPortConnectChange and
> PeiUsbClearDeviceFeature.
> https://bugzilla.tianocore.org/show_bug.cgi?id=1062
> 
> Cc: Star Zeng <star.z...@intel.com>
> Cc: Eric Dong <eric.d...@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: shenglei <shenglei.zh...@intel.com>
> ---
>  MdeModulePkg/Bus/Usb/UsbBusPei/HubPeim.c   | 39 -----------
>  MdeModulePkg/Bus/Usb/UsbBusPei/HubPeim.h   | 18 -----
>  MdeModulePkg/Bus/Usb/UsbBusPei/PeiUsbLib.c | 77 ----------------------
> MdeModulePkg/Bus/Usb/UsbBusPei/PeiUsbLib.h | 35 ----------
>  4 files changed, 169 deletions(-)
> 
> diff --git a/MdeModulePkg/Bus/Usb/UsbBusPei/HubPeim.c
> b/MdeModulePkg/Bus/Usb/UsbBusPei/HubPeim.c
> index 806602511c..5607c65b13 100644
> --- a/MdeModulePkg/Bus/Usb/UsbBusPei/HubPeim.c
> +++ b/MdeModulePkg/Bus/Usb/UsbBusPei/HubPeim.c
> @@ -193,46 +193,7 @@ PeiHubGetHubStatus (
>                       );
>  }
> 
> -/**
> -  Set specified feature to a given hub.
> -
> -  @param  PeiServices   General-purpose services that are available to every
> PEIM.
> -  @param  UsbIoPpi      Indicates the PEI_USB_IO_PPI instance.
> -  @param  Value         New feature value.
> -
> -  @retval EFI_SUCCESS       Port feature is set successfully.
> -  @retval EFI_DEVICE_ERROR  Cannot set the port feature due to a hardware
> error.
> -  @retval Others            Other failure occurs.
> -
> -**/
> -EFI_STATUS
> -PeiHubSetHubFeature (
> -  IN EFI_PEI_SERVICES    **PeiServices,
> -  IN PEI_USB_IO_PPI      *UsbIoPpi,
> -  IN UINT8               Value
> -  )
> -{
> -  EFI_USB_DEVICE_REQUEST      DeviceRequest;
> 
> -  ZeroMem (&DeviceRequest, sizeof (EFI_USB_DEVICE_REQUEST));
> -
> -  //
> -  // Fill Device request packet
> -  //
> -  DeviceRequest.RequestType = USB_HUB_SET_HUB_FEATURE_REQ_TYPE;
> -  DeviceRequest.Request     = USB_HUB_SET_HUB_FEATURE;
> -  DeviceRequest.Value       = Value;
> -
> -  return UsbIoPpi->UsbControlTransfer (
> -                     PeiServices,
> -                     UsbIoPpi,
> -                     &DeviceRequest,
> -                     EfiUsbNoData,
> -                     PcdGet32 (PcdUsbTransferTimeoutValue),
> -                     NULL,
> -                     0
> -                     );
> -}
> 
>  /**
>    Clear specified feature on a given hub.
> diff --git a/MdeModulePkg/Bus/Usb/UsbBusPei/HubPeim.h
> b/MdeModulePkg/Bus/Usb/UsbBusPei/HubPeim.h
> index 385a14ec0d..d21057c349 100644
> --- a/MdeModulePkg/Bus/Usb/UsbBusPei/HubPeim.h
> +++ b/MdeModulePkg/Bus/Usb/UsbBusPei/HubPeim.h
> @@ -145,24 +145,6 @@ PeiHubSetPortFeature (
>    IN  UINT8                 Value
>    );
> 
> -/**
> -  Set specified feature to a given hub.
> -
> -  @param  PeiServices   General-purpose services that are available to every
> PEIM.
> -  @param  UsbIoPpi      Indicates the PEI_USB_IO_PPI instance.
> -  @param  Value         New feature value.
> -
> -  @retval EFI_SUCCESS       Port feature is set successfully.
> -  @retval EFI_DEVICE_ERROR  Cannot set the port feature due to a hardware
> error.
> -  @retval Others            Other failure occurs.
> -
> -**/
> -EFI_STATUS
> -PeiHubSetHubFeature (
> -  IN EFI_PEI_SERVICES       **PeiServices,
> -  IN PEI_USB_IO_PPI         *UsbIoPpi,
> -  IN  UINT8                 Value
> -  );
> 
>  /**
>    Get a given hub status.
> diff --git a/MdeModulePkg/Bus/Usb/UsbBusPei/PeiUsbLib.c
> b/MdeModulePkg/Bus/Usb/UsbBusPei/PeiUsbLib.c
> index c5e599e2f7..73a163e7a0 100644
> --- a/MdeModulePkg/Bus/Usb/UsbBusPei/PeiUsbLib.c
> +++ b/MdeModulePkg/Bus/Usb/UsbBusPei/PeiUsbLib.c
> @@ -104,62 +104,7 @@ PeiUsbSetDeviceAddress (
>                       );
>  }
> 
> -/**
> -  Clear a given usb feature.
> -
> -  @param  PeiServices       General-purpose services that are available to
> every PEIM.
> -  @param  UsbIoPpi          Indicates the PEI_USB_IO_PPI instance.
> -  @param  Recipient         The recipient of ClearFeature Request, should be
> one of Device/Interface/Endpoint.
> -  @param  Value             Request Value.
> -  @param  Target            Request Index.
> -
> -  @retval EFI_SUCCESS       Usb feature is cleared successfully.
> -  @retval EFI_DEVICE_ERROR  Cannot clear the usb feature due to a
> hardware error.
> -  @retval Others            Other failure occurs.
> 
> -**/
> -EFI_STATUS
> -PeiUsbClearDeviceFeature (
> -  IN EFI_PEI_SERVICES         **PeiServices,
> -  IN PEI_USB_IO_PPI           *UsbIoPpi,
> -  IN EFI_USB_RECIPIENT        Recipient,
> -  IN UINT16                   Value,
> -  IN UINT16                   Target
> -  )
> -{
> -  EFI_USB_DEVICE_REQUEST  DevReq;
> -
> -  ASSERT (UsbIoPpi != NULL);
> -
> -  switch (Recipient) {
> -  case EfiUsbDevice:
> -    DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_D;
> -    break;
> -
> -  case EfiUsbInterface:
> -    DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_I;
> -    break;
> -
> -  case EfiUsbEndpoint:
> -    DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_E;
> -    break;
> -  }
> -
> -  DevReq.Request      = USB_DEV_CLEAR_FEATURE;
> -  DevReq.Value        = Value;
> -  DevReq.Index        = Target;
> -  DevReq.Length       = 0;
> -
> -  return UsbIoPpi->UsbControlTransfer (
> -                     PeiServices,
> -                     UsbIoPpi,
> -                     &DevReq,
> -                     EfiUsbNoData,
> -                     PcdGet32 (PcdUsbTransferTimeoutValue),
> -                     NULL,
> -                     0
> -                     );
> -}
> 
>  /**
>    Configure a usb device to Configuration 1.
> @@ -244,26 +189,4 @@ PeiUsbGetDeviceSpeed (
>    }
>  }
> 
> -/**
> -  Judge if the port is in "connection change" status or not.
> -
> -  @param  PortChangeStatus  The usb port change status gotten.
> -
> -  @retval TRUE              The port is in "connection change" status.
> -  @retval FALSE             The port is NOT in "connection change" status.
> 
> -**/
> -BOOLEAN
> -IsPortConnectChange (
> -  IN UINT16  PortChangeStatus
> -  )
> -{
> -  //
> -  // return the bit 0 value of PortChangeStatus
> -  //
> -  if ((PortChangeStatus & USB_PORT_STAT_C_CONNECTION) != 0) {
> -    return TRUE;
> -  } else {
> -    return FALSE;
> -  }
> -}
> diff --git a/MdeModulePkg/Bus/Usb/UsbBusPei/PeiUsbLib.h
> b/MdeModulePkg/Bus/Usb/UsbBusPei/PeiUsbLib.h
> index 35f47a35ec..e3afee6e84 100644
> --- a/MdeModulePkg/Bus/Usb/UsbBusPei/PeiUsbLib.h
> +++ b/MdeModulePkg/Bus/Usb/UsbBusPei/PeiUsbLib.h
> @@ -148,28 +148,6 @@ PeiUsbSetDeviceAddress (
>    IN UINT16                   AddressValue
>    );
> 
> -/**
> -  Clear a given usb feature.
> -
> -  @param  PeiServices       General-purpose services that are available to
> every PEIM.
> -  @param  UsbIoPpi          Indicates the PEI_USB_IO_PPI instance.
> -  @param  Recipient         The recipient of ClearFeature Request, should be
> one of Device/Interface/Endpoint.
> -  @param  Value             Request Value.
> -  @param  Target            Request Index.
> -
> -  @retval EFI_SUCCESS       Usb feature is cleared successfully.
> -  @retval EFI_DEVICE_ERROR  Cannot clear the usb feature due to a
> hardware error.
> -  @retval Others            Other failure occurs.
> -
> -**/
> -EFI_STATUS
> -PeiUsbClearDeviceFeature (
> -  IN EFI_PEI_SERVICES         **PeiServices,
> -  IN PEI_USB_IO_PPI           *UsbIoPpi,
> -  IN EFI_USB_RECIPIENT        Recipient,
> -  IN UINT16                   Value,
> -  IN UINT16                   Target
> -  );
> 
>  /**
>    Configure a usb device to Configuration 1.
> @@ -215,17 +193,4 @@ PeiUsbGetDeviceSpeed (
>    IN UINT16 PortStatus
>    );
> 
> -/**
> -  Judge if the port is in "connection change" status or not.
> -
> -  @param  PortChangeStatus  The usb port change status gotten.
> -
> -  @retval TRUE              The port is in "connection change" status.
> -  @retval FALSE             The port is NOT in "connection change" status.
> -
> -**/
> -BOOLEAN
> -IsPortConnectChange (
> -  IN UINT16  PortChangeStatus
> -  );
>  #endif
> --
> 2.18.0.windows.1
> 
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