Re: [PATCH v3 bpf-next 7/9] libbpf: add SEC name for xdp programs attached to CPUMAP

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On Tue, 23 Jun 2020 22:49:02 -0700
Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx> wrote:

> On Tue, Jun 23, 2020 at 2:40 PM Lorenzo Bianconi <lorenzo@xxxxxxxxxx> wrote:
> >
> > As for DEVMAP, support SEC("xdp_cpumap*") as a short cut for loading
                                ^^^^^^^^^^^

Maybe update desc to include the "/" ?
  
> > the program with type BPF_PROG_TYPE_XDP and expected attach type
> > BPF_XDP_CPUMAP.
> >
> > Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
> > ---  
> 
> Thanks!
> 
> Acked-by: Andrii Nakryiko <andriin@xxxxxx>

I like this extra "/".

Acked-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx>

If we agree, I hope we can also adjust this for devmap in bpf-tree ?


> >  tools/lib/bpf/libbpf.c | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
> > index 18461deb1b19..16fa3b84ac38 100644
> > --- a/tools/lib/bpf/libbpf.c
> > +++ b/tools/lib/bpf/libbpf.c
> > @@ -6866,6 +6866,8 @@ static const struct bpf_sec_def section_defs[] = {
> >                 .attach_fn = attach_iter),
> >         BPF_EAPROG_SEC("xdp_devmap",            BPF_PROG_TYPE_XDP,
> >                                                 BPF_XDP_DEVMAP),
> > +       BPF_EAPROG_SEC("xdp_cpumap/",           BPF_PROG_TYPE_XDP,
> > +                                               BPF_XDP_CPUMAP),
> >         BPF_PROG_SEC("xdp",                     BPF_PROG_TYPE_XDP),
> >         BPF_PROG_SEC("perf_event",              BPF_PROG_TYPE_PERF_EVENT),
> >         BPF_PROG_SEC("lwt_in",                  BPF_PROG_TYPE_LWT_IN),
> > --

-- 
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Principal Kernel Engineer at Red Hat
  LinkedIn: http://www.linkedin.com/in/brouer




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