linux-kernel - Re: [PATCH bpf-next 06/11] tools, bpf: fix fcntl.h include in bpftool

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Message-ID: <CAPhsuW6JoSHe2B4daYjFrkWYBvGLzq2PZnPs76ceT0iW1h6sMQ@mail.gmail.com>
Date:   Fri, 15 Apr 2022 16:46:17 -0700
From:   Song Liu <song@...nel.org>
To:     Alexander Lobakin <alobakin@...me>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Björn Töpel <bjorn@...nel.org>,
        Magnus Karlsson <magnus.karlsson@...el.com>,
        Jonathan Lemon <jonathan.lemon@...il.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Dmitrii Dolgov <9erthalion6@...il.com>,
        Quentin Monnet <quentin@...valent.com>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>,
        Kumar Kartikeya Dwivedi <memxor@...il.com>,
        Chenbo Feng <fengc@...gle.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Daniel Wagner <daniel.wagner@...-carit.de>,
        Thomas Graf <tgraf@...g.ch>,
        Ong Boon Leong <boon.leong.ong@...el.com>,
        linux-perf-users@...r.kernel.org,
        open list <linux-kernel@...r.kernel.org>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        llvm@...ts.linux.dev
Subject: Re: [PATCH bpf-next 06/11] tools, bpf: fix fcntl.h include in bpftool

On Thu, Apr 14, 2022 at 3:46 PM Alexander Lobakin <alobakin@...me> wrote:
>
> Fix the following (on some libc implementations):
>
>   CC      tracelog.o
> In file included from tracelog.c:12:
> include/sys/fcntl.h:1:2: warning: #warning redirecting incorrect #include <sys/fcntl.h> to <fcntl.h> [-Wcpp]
>     1 | #warning redirecting incorrect #include <sys/fcntl.h> to <fcntl.h>
>       |  ^~~~~~~
>
> <sys/fcntl.h> is anyway just a wrapper over <fcntl.h> (backcomp
> stuff).
>
> Fixes: 30da46b5dc3a ("tools: bpftool: add a command to dump the trace pipe")
> Signed-off-by: Alexander Lobakin <alobakin@...me>

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

> ---
>  tools/bpf/bpftool/tracelog.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/bpf/bpftool/tracelog.c b/tools/bpf/bpftool/tracelog.c
> index e80a5c79b38f..bf1f02212797 100644
> --- a/tools/bpf/bpftool/tracelog.c
> +++ b/tools/bpf/bpftool/tracelog.c
> @@ -9,7 +9,7 @@
>  #include <string.h>
>  #include <unistd.h>
>  #include <linux/magic.h>
> -#include <sys/fcntl.h>
> +#include <fcntl.h>
>  #include <sys/vfs.h>
>
>  #include "main.h"
> --
> 2.35.2
>
>