On 16-12-08 08:55 AM, Alexei Starovoitov wrote: > On Thu, Dec 08, 2016 at 10:02:37AM +0100, Daniel Borkmann wrote: >> On 12/08/2016 12:53 AM, Martin KaFai Lau wrote: >>> This patch allows XDP prog to extend/remove the packet >>> data at the head (like adding or removing header). It is >>> done by adding a new XDP helper bpf_xdp_adjust_head(). >>> >>> It also renames bpf_helper_changes_skb_data() to >>> bpf_helper_changes_pkt_data() to better reflect >>> that XDP prog does not work on skb. >>> >>> This patch adds one "xdp_adjust_head" bit to bpf_prog for the >>> XDP-capable driver to check if the XDP prog requires >>> bpf_xdp_adjust_head() support. The driver can then decide >>> to error out during XDP_SETUP_PROG. >>> >>> Signed-off-by: Martin KaFai Lau <ka...@fb.com> >> >> Acked-by: Daniel Borkmann <dan...@iogearbox.net> > > Acked-by: Alexei Starovoitov <a...@kernel.org> >
Thanks for fixing up the xdp_buff struct. And for good measure, Acked-by: John Fastabend <john.r.fastab...@intel.com>
