Re: [PATCH bpf-next] bpf: Enforce 'return 0' in BTF-enabled raw_tp programs

Daniel Borkmann
2019-10-30T15:53:54Z

On Mon, Oct 28, 2019 at 08:24:26PM -0700, Alexei Starovoitov wrote:
> The return value of raw_tp programs is ignored by __bpf_trace_run()
> that calls them. The verifier also allows any value to be returned.
> For BTF-enabled raw_tp lets enforce 'return 0', so that return value
> can be used for something in the future.
>
> Signed-off-by: Alexei Starovoitov <ast@kernel.org>

Applied, thanks!