Martin KaFai Lau 17bedab272 bpf: xdp: Allow head adjustment in XDP prog ... 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 <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-12-08 14:25:13 -05:00
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bpf_jit_comp.c	bpf: xdp: Allow head adjustment in XDP prog	2016-12-08 14:25:13 -05:00
bpf_jit.h	s390/bpf: fix recache skb->data/hlen for skb_vlan_push/pop	2016-05-19 09:14:27 +02:00
bpf_jit.S	s390/bpf: Add s390x eBPF JIT compiler backend	2015-04-15 12:23:49 +02:00
Makefile	s390/bpf,jit: BPF Just In Time compiler for s390	2012-09-26 15:44:49 +02:00