linux-kernel - Re: [PATCH 07/18] tools headers: Fixup tools/include/uapi/linux/bpf.h copy of kernel ABI header

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Date:   Tue, 01 Aug 2017 22:15:54 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Ingo Molnar <mingo@...nel.org>
CC:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        David Ahern <dsahern@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jiri Olsa <jolsa@...nel.org>, Lawrence Brakmo <brakmo@...com>,
        Namhyung Kim <namhyung@...nel.org>,
        Wang Nan <wangnan0@...wei.com>
Subject: Re: [PATCH 07/18] tools headers: Fixup tools/include/uapi/linux/bpf.h
 copy of kernel ABI header

On 08/01/2017 09:56 PM, Arnaldo Carvalho de Melo wrote:
> From: Arnaldo Carvalho de Melo <acme@...hat.com>
>
> In 04df41e343db ("bpf: update tools/include/uapi/linux/bpf.h") the files
> added in 40304b2a1567 ("bpf: BPF support for sock_ops") were added to
> tools/include, but not in a verbatim way, missing the comments, which
> ends up triggering this warning when build tools/perf/:
>
>    make: Entering directory '/home/acme/git/linux/tools/perf'
>      BUILD:   Doing 'make -j4' parallel build
>    Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h'
>
> Make sure the the lines are equal, to fix the simple header copy
> drift detector in tools/perf/.
>
> Cc: Adrian Hunter <adrian.hunter@...el.com>
> Cc: Daniel Borkmann <daniel@...earbox.net>
> Cc: David Ahern <dsahern@...il.com>
> Cc: David S. Miller <davem@...emloft.net>
> Cc: Jiri Olsa <jolsa@...nel.org>
> Cc: Lawrence Brakmo <brakmo@...com>
> Cc: Namhyung Kim <namhyung@...nel.org>
> Cc: Wang Nan <wangnan0@...wei.com>
> Fixes: 04df41e343db ("bpf: update tools/include/uapi/linux/bpf.h")
> Link: http://lkml.kernel.org/n/tip-z9qyyqht9qq3yyxu76sfy0dh@git.kernel.org
> Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>

Acked-by: Daniel Borkmann <daniel@...earbox.net>