netdev - Re: [PATCH bpf-next V1 3/6] bpf: add BPF-helper for reading MTU from net

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Message-ID: <20201006181858.6003de94@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Tue, 6 Oct 2020 18:18:58 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Jesper Dangaard Brouer <brouer@...hat.com>
Cc:     bpf@...r.kernel.org, netdev@...r.kernel.org,
        Daniel Borkmann <borkmann@...earbox.net>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        maze@...gle.com, lmb@...udflare.com, shaun@...era.io,
        Lorenzo Bianconi <lorenzo@...nel.org>, marek@...udflare.com,
        John Fastabend <john.fastabend@...il.com>
Subject: Re: [PATCH bpf-next V1 3/6] bpf: add BPF-helper for reading MTU
 from net_device via ifindex

On Tue, 6 Oct 2020 18:33:02 +0200 Jesper Dangaard Brouer wrote:
> > +static const struct bpf_func_proto bpf_xdp_mtu_lookup_proto = {
> > +	.func		= bpf_xdp_mtu_lookup,
> > +	.gpl_only	= true,
> > +	.ret_type	= RET_INTEGER,
> > +	.arg1_type      = ARG_PTR_TO_CTX,
> > +	.arg2_type      = ARG_ANYTHING,
> > +	.arg3_type      = ARG_ANYTHING,
> > +};
> > +
> > +

FWIW

CHECK: Please don't use multiple blank lines
#112: FILE: net/core/filter.c:5566:
+
+