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>
