Re: [PATCH v1 1/1] OvmfPkg/VirtioNetDxe: Check ChildHandle argument in GetControllerName

["Samer El-Haj-Mahmoud" <samer.el-haj-mahmoud@arm.com>]

Hi Ard,

Any luck getting this one merged?

Thanks,
--Samer

> -----Original Message-----
> From: Sunny Wang <Sunny.Wang@arm.com>
> Sent: Friday, August 19, 2022 10:47 AM
> To: Dimitrije Pavlov <Dimitrije.Pavlov@arm.com>; devel@edk2.groups.io
> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>; Jiewen Yao
> <jiewen.yao@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>; Jeff
> Booher-Kaeding <Jeff.Booher-Kaeding@arm.com>; Samer El-Haj-Mahmoud
> <Samer.El-Haj-Mahmoud@arm.com>; Sunny Wang <Sunny.Wang@arm.com>
> Subject: RE: [PATCH v1 1/1] OvmfPkg/VirtioNetDxe: Check ChildHandle argument
> in GetControllerName
>
> Looks good.
> Reviewed-by: Sunny Wang <sunny.wang@arm.com>
>
> -----Original Message-----
> From: Dimitrije Pavlov <dimitrije.pavlov@arm.com>
> Sent: 17 August 2022 15:35
> To: devel@edk2.groups.io
> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>; Jiewen Yao
> <jiewen.yao@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>; Sunny
> Wang <Sunny.Wang@arm.com>; Jeff Booher-Kaeding <Jeff.Booher-
> Kaeding@arm.com>; Samer El-Haj-Mahmoud <Samer.El-Haj-
> Mahmoud@arm.com>
> Subject: [PATCH v1 1/1] OvmfPkg/VirtioNetDxe: Check ChildHandle argument in
> GetControllerName
>
> Per the UEFI specification, a device driver implementation should return
> EFI_UNSUPPORTED if the ChildHandle argument in
> EFI_COMPONENT_NAME2_PROTOCOL.GetControllerName() is not NULL.
>
> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Sunny Wang <Sunny.Wang@arm.com>
> Cc: Jeff Booher-Kaeding <Jeff.Booher-Kaeding@arm.com>
> Cc: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
>
> Signed-off-by: Dimitrije Pavlov <Dimitrije.Pavlov@arm.com>
> ---
>  OvmfPkg/VirtioNetDxe/ComponentName.c | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/OvmfPkg/VirtioNetDxe/ComponentName.c
> b/OvmfPkg/VirtioNetDxe/ComponentName.c
> index e340ca2f8fe4..718096630f6f 100644
> --- a/OvmfPkg/VirtioNetDxe/ComponentName.c
> +++ b/OvmfPkg/VirtioNetDxe/ComponentName.c
> @@ -129,6 +129,13 @@ VirtioNetGetControllerName (
>      return EFI_INVALID_PARAMETER;
>    }
>
> +  //
> +  // This is a device driver, so ChildHandle must be NULL.
> +  //
> +  if (ChildHandle != NULL) {
> +    return EFI_UNSUPPORTED;
> +  }
> +
>    //
>    // confirm that the device is managed by this driver, using the VirtIo
>    // Protocol
> --
> 2.37.2
>

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