> On Nov 14, 2019, at 10:57 AM, Alexei Starovoitov <ast@xxxxxxxxxx> wrote:
>
> Annotate BPF program context types with program-side type and kernel-side type.
> This type information is used by the verifier. btf_get_prog_ctx_type() is
> used in the later patches to verify that BTF type of ctx in BPF program matches to
> kernel expected ctx type. For example, the XDP program type is:
> BPF_PROG_TYPE(BPF_PROG_TYPE_XDP, xdp, struct xdp_md, struct xdp_buff)
> That means that XDP program should be written as:
> int xdp_prog(struct xdp_md *ctx) { ... }
>
> Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx>
Acked-by: Song Liu <songliubraving@xxxxxx>
