netdev - Re: [PATCH bpf-next] bpf_load: add map name to load

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Date:   Tue, 6 Nov 2018 16:26:58 -0800
From:   Song Liu <liu.song.a23@...il.com>
To:     John Fastabend <john.fastabend@...il.com>
Cc:     shannon.nelson@...cle.com, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Networking <netdev@...r.kernel.org>, shannon.lee.nelson@...il.com
Subject: Re: [PATCH bpf-next] bpf_load: add map name to load_maps error message

On Mon, Oct 29, 2018 at 3:12 PM John Fastabend <john.fastabend@...il.com> wrote:
>
> On 10/29/2018 02:14 PM, Shannon Nelson wrote:
> > To help when debugging bpf/xdp load issues, have the load_map()
> > error message include the number and name of the map that
> > failed.
> >
> > Signed-off-by: Shannon Nelson <shannon.nelson@...cle.com>
> > ---
> >  samples/bpf/bpf_load.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c
> > index 89161c9..5de0357 100644
> > --- a/samples/bpf/bpf_load.c
> > +++ b/samples/bpf/bpf_load.c
> > @@ -282,8 +282,8 @@ static int load_maps(struct bpf_map_data *maps, int nr_maps,
> >                                                       numa_node);
> >               }
> >               if (map_fd[i] < 0) {
> > -                     printf("failed to create a map: %d %s\n",
> > -                            errno, strerror(errno));
> > +                     printf("failed to create map %d (%s): %d %s\n",
> > +                            i, maps[i].name, errno, strerror(errno));
> >                       return 1;
> >               }
> >               maps[i].fd = map_fd[i];
> >
>
> LGTM
>
> Acked-by: John Fastabend <john.fastabend@...il.com>

Acked-by: Song Liu <songliubraving@...com>