netdev - Re: [PATCH bpf] libbpf: forward-declare bpf_stats_type for systems with outdated UAPI headers

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Message-ID: <CAPhsuW5Z19E8=F88wphBrQvRioBJBS=-1K8L-HftZGCMf75D=Q@mail.gmail.com>
Date:   Sat, 20 Jun 2020 20:36:14 -0700
From:   Song Liu <song@...nel.org>
To:     Andrii Nakryiko <andriin@...com>
Cc:     bpf <bpf@...r.kernel.org>, Networking <netdev@...r.kernel.org>,
        Alexei Starovoitov <ast@...com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Kernel Team <kernel-team@...com>
Subject: Re: [PATCH bpf] libbpf: forward-declare bpf_stats_type for systems
 with outdated UAPI headers

On Sat, Jun 20, 2020 at 8:12 PM Andrii Nakryiko <andriin@...com> wrote:
>
> Systems that doesn't yet have the very latest linux/bpf.h header, enum
> bpf_stats_type will be undefined, causing compilation warnings. Prevents this
> by forward-declaring enum.
>
> Fixes: 0bee106716cf ("libbpf: Add support for command BPF_ENABLE_STATS")
> Signed-off-by: Andrii Nakryiko <andriin@...com>

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

Thanks for the fix!