netdev - Re: [PATCHv5 bpf-next 1/3] xdp: add a new helper for dev map multicast support

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Date:   Wed, 1 Jul 2020 14:51:37 +0800
From:   Hangbin Liu <liuhangbin@...il.com>
To:     Andrii Nakryiko <andrii.nakryiko@...il.com>
Cc:     bpf <bpf@...r.kernel.org>, Networking <netdev@...r.kernel.org>,
        Toke Høiland-Jørgensen <toke@...hat.com>,
        Jiri Benc <jbenc@...hat.com>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Eelco Chaudron <echaudro@...hat.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Lorenzo Bianconi <lorenzo.bianconi@...hat.com>
Subject: Re: [PATCHv5 bpf-next 1/3] xdp: add a new helper for dev map
 multicast support

On Tue, Jun 30, 2020 at 10:09:39PM -0700, Andrii Nakryiko wrote:
> > diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
> > index 0cb8ec948816..d7de6c0b32e4 100644
> > --- a/tools/include/uapi/linux/bpf.h
> > +++ b/tools/include/uapi/linux/bpf.h
> > @@ -3285,6 +3285,23 @@ union bpf_attr {
> >   *             Dynamically cast a *sk* pointer to a *udp6_sock* pointer.
> >   *     Return
> >   *             *sk* if casting is valid, or NULL otherwise.
> > + *
> > + * int bpf_redirect_map_multi(struct bpf_map *map, struct bpf_map *ex_map, u64 flags)
> 
> We've recently converted all return types for helpers from int to
> long, please update accordingly. Thanks.
> 

Thanks, I will fix it.

- Hangbin