# Re: \[PATCH iproute2-next 3/5\] lib: add libbpf support

- From: Hangbin Liu \<hidden\>
- Date: 2020-10-26 08:11:58 
- List: netdev
- Page: https://ratatoskr.run/netdev/2020/10/7749600
- Thread: https://ratatoskr.run/netdev/2020/10/7749562/t.md

```text
On Fri, Oct 23, 2020 at 05:21:20PM -0700, Andrii Nakryiko wrote:
> > +       obj = bpf_object__open_file(cfg->object, &open_opts);
> > +       if (IS_ERR_OR_NULL(obj))
> 
> libbpf defines libbpf_get_error() to check that the returned pointer
> is not encoding error, you shouldn't need to define your IS_ERR
> macros.

Thanks for this tip, I will fix it in next version.

Hangbin

```