Re: [PATCH 4/5] Assert that transmitter not being sent NULL MDL's

[Paul Durrant <xadimgnik@xxxxxxxxx>]

On 28/07/2021 15:02, Martin Harvey wrote:
> An assertion to check that a corresponding fix in XenNet is preventing
> NULL MDL's from being queued for transmission.
>
> Signed-off-by: Martin Harvey <martin.harvey@xxxxxxxxxx>
Acked-by: Paul Durrant <paul@xxxxxxx>

> ---
>   src/xenvif/transmitter.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/src/xenvif/transmitter.c b/src/xenvif/transmitter.c
> index 47f2fc2..b5fb9a8 100644
> --- a/src/xenvif/transmitter.c
> +++ b/src/xenvif/transmitter.c
> @@ -5143,6 +5143,8 @@ TransmitterQueuePacket(
>       PXENVIF_TRANSMITTER_RING        Ring;
>       NTSTATUS                        status;
>   
> +    ASSERT(Mdl != NULL);
> +
>       Frontend = Transmitter->Frontend;
>   
>       Packet = __TransmitterGetPacket(Transmitter);