From: "Md. Islam" <misl...@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.