Re: [Patch] MdeModulePkg/NetLib: Fix an error when AIP doesn't support network media state detection

["Wu, Jiaxin" <jiaxin.wu@intel.com>]

Reviewed-by: Jiaxin Wu <jiaxin.wu@intel.com>



> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> fanwang2
> Sent: Thursday, December 7, 2017 5:51 PM
> To: edk2-devel@lists.01.org
> Cc: Ye, Ting <ting.ye@intel.com>; Wang, Fan <fan.wang@intel.com>; Fu,
> Siyuan <siyuan.fu@intel.com>; Wu, Jiaxin <jiaxin.wu@intel.com>
> Subject: [edk2] [Patch] MdeModulePkg/NetLib: Fix an error when AIP
> doesn't support network media state detection
> 
> AIP may not support detecting network media state, in this case,
> should call NetLibDetectMedia to get media state. This patch is to
> fix this issue.
> 
> Cc: Fu Siyuan <siyuan.fu@intel.com>
> Cc: Ye Ting <ting.ye@intel.com>
> Cc: Jiaxin Wu <jiaxin.wu@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Wang Fan <fan.wang@intel.com>
> ---
>  MdeModulePkg/Library/DxeNetLib/DxeNetLib.c | 18
> ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/MdeModulePkg/Library/DxeNetLib/DxeNetLib.c
> b/MdeModulePkg/Library/DxeNetLib/DxeNetLib.c
> index 1bfa33d..d75cca2 100644
> --- a/MdeModulePkg/Library/DxeNetLib/DxeNetLib.c
> +++ b/MdeModulePkg/Library/DxeNetLib/DxeNetLib.c
> @@ -2603,10 +2603,28 @@ NetLibDetectMediaWaitTimeout (
>    } else {
> 
>      if (MediaInfo != NULL) {
>        FreePool (MediaInfo);
>      }
> +
> +    if (Status == EFI_UNSUPPORTED) {
> +
> +      //
> +      // If gEfiAdapterInfoMediaStateGuid is not supported, call
> NetLibDetectMedia to get media state!
> +      //
> +      MediaPresent = TRUE;
> +      Status = NetLibDetectMedia (ServiceHandle, &MediaPresent);
> +      if (!EFI_ERROR (Status)) {
> +        if (MediaPresent == TRUE) {
> +          *MediaState = EFI_SUCCESS;
> +        } else {
> +          *MediaState = EFI_NO_MEDIA;
> +        }
> +      }
> +      return Status;
> +    }
> +
>      return Status;
>    }
> 
>    //
>    // Loop to check media state
> --
> 1.9.5.msysgit.1
> 
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