From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH-v4-RESEND 1/4] vsock: track pkt owner vsock
Date: Thu, 02 Mar 2017 13:13:03 -0800 (PST)
Message-ID: <20170302.131303.703202861280343181.davem@davemloft.net>
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From: Peng Tao <bergwolf@gmail.com>
Date: Wed,  1 Mar 2017 11:56:24 +0800

> So that we can cancel a queued pkt later if necessary.
> 
> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
> Signed-off-by: Peng Tao <bergwolf@gmail.com>
> ---
>  include/linux/virtio_vsock.h            | 2 ++
>  net/vmw_vsock/virtio_transport_common.c | 7 +++++++
>  2 files changed, 9 insertions(+)
> 
> diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
> index 9638bfe..193ad3a 100644
> --- a/include/linux/virtio_vsock.h
> +++ b/include/linux/virtio_vsock.h
> @@ -48,6 +48,7 @@ struct virtio_vsock_pkt {
>  	struct virtio_vsock_hdr	hdr;
>  	struct work_struct work;
>  	struct list_head list;
> +	void *cancel_token; /* only used for cancellation */

The type here is fixed, you only store vhost_sock object pointers
here, so don't use "void *" please.