Björn Töpel <bjorn.to...@gmail.com> writes:
> diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
> index c001766adcbc..bbc7d9a57262 100644
> --- a/include/uapi/linux/bpf.h
> +++ b/include/uapi/linux/bpf.h
> @@ -3836,6 +3836,12 @@ union bpf_attr {
> * Return
> * A pointer to a struct socket on success or NULL if the file is
> * not a socket.
> + *
> + * long bpf_redirect_xsk(struct xdp_buff *xdp_md, u64 action)
> + * Description
> + * Redirect to the registered AF_XDP socket.
> + * Return
> + * **XDP_REDIRECT** on success, otherwise the action parameter is
> returned.
> */
I think it would be better to make the second argument a 'flags'
argument and make values > XDP_TX invalid (like we do in
bpf_xdp_redirect_map() now). By allowing any value as return you lose
the ability to turn it into a flags argument later...
-Toke
