netdev - Re: [PATCH v2] iptables: open eBPF programs in read only mode

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Date:   Thu, 26 Mar 2020 12:22:05 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Maciej Żenczykowski <zenczykowski@...il.com>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Florian Westphal <fw@...len.de>,
        Linux Network Development Mailing List 
        <netdev@...r.kernel.org>,
        Netfilter Development Mailing List 
        <netfilter-devel@...r.kernel.org>, Chenbo Feng <fengc@...gle.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Willem de Bruijn <willemb@...gle.com>
Subject: Re: [PATCH v2] iptables: open eBPF programs in read only mode

On Thu, Mar 26, 2020 at 11:34 AM Maciej Żenczykowski
<zenczykowski@...il.com> wrote:
>
> > FWIW the BPF subsystem is about to break uAPI backward-compat and
> > replace the defines with enums. See commit 1aae4bdd7879 ("bpf: Switch
> > BPF UAPI #define constants used from BPF program side to enums").
>
> Shouldn't it do what is normally done in such a case?
> #define BPF_F_RDONLY BPF_F_RDONLY

No. just update the headers.