From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next] XDP router for veth
Date: Mon, 26 Mar 2018 10:21:10 -0400 (EDT)
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From: "Md. Islam" <mislam4@kent.edu>
Date: Fri, 23 Mar 2018 02:43:16 -0400

> +#ifdef CONFIG_XDP_ROUTER
> +        //if IP forwarding is enabled on the receiver, create xdp_buff
> +        //from skb and call xdp_router_forward()

Never use C++ comments, only use C style.

> +        if(is_forwarding_enabled(rcv)){

There must be a space between 'if' and the openning parenthesis.  You need
to also have a space before the openning curly braces.

In fact this entire patch is full of coding style issues, please run your
changes through checkpatch.pl before resubmitting.