[PATCH v2 bpf-nxt] Documentation/bpf: Add heading and example for extensions in filter.rst

[Alexei Starovoitov]

On Tue, Jul 13, 2021 at 5:20 PM John Fastabend <john.fastabend at gmail.com> wrote:
>
> Roy, UjjaL wrote:
> > [1] https://www.kernel.org/doc/html/latest/bpf/
> >
> > Add new heading for extensions to make it more readable. Also, add one
> > more example of filtering interface index for better understanding.
> >
> > Signed-off-by: Roy, UjjaL <royujjal at gmail.com>
> > Acked-by: Song Liu <songliubraving at fb.com>
>
> Looks OK to me. I thought the original was readable without the header, but
> if it helps someone seems easy enough to do.
>
> Acked-by: John Fastabend <john.fastabend at gmail.com>

I cannot figure out how to apply this patch, because I see:
Applying: Documentation/bpf: Add heading and example for extensions in
filter.rst
fatal: empty ident name (for <>) not allowed

Any idea?