xdp: Introduce xdp_convert_frame_to_buff utility routine
Introduce xdp_convert_frame_to_buff utility routine to initialize xdp_buff
fields from xdp_frames ones. Rely on xdp_convert_frame_to_buff in veth xdp
code.
Suggested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/87acf133073c4b2d4cbb8097e8c2480c0a0fac32.1590698295.git.lorenzo@kernel.org
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index b586d2f..fb5c173 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -575,11 +575,7 @@ static struct sk_buff *veth_xdp_rcv_one(struct veth_rq *rq,
struct xdp_buff xdp;
u32 act;
- xdp.data_hard_start = hard_start;
- xdp.data = frame->data;
- xdp.data_end = frame->data + frame->len;
- xdp.data_meta = frame->data - frame->metasize;
- xdp.frame_sz = frame->frame_sz;
+ xdp_convert_frame_to_buff(frame, &xdp);
xdp.rxq = &rq->xdp_rxq;
act = bpf_prog_run_xdp(xdp_prog, &xdp);