xdp_meta
struct xdp_meta *meta;
meta = data - sizeof(struct xdp_meta);
struct xdp_meta *meta;
err = bpf_xdp_adjust_meta(ctx, -(int)sizeof(struct xdp_meta));
struct xdp_meta *meta;
ret = bpf_xdp_adjust_meta(ctx, -(int)sizeof(struct xdp_meta));
if (data_meta + sizeof(struct xdp_meta) > data)
struct xdp_meta *meta;