From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Christoph Hellwig <hch@lst.de>
Cc: Kees Cook <keescook@chromium.org>,
Iurii Zaikin <yzaikin@google.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-fsdevel@vger.kernel.org, netdev@vger.kernel.org,
bpf@vger.kernel.org
Subject: Re: [PATCH 3/5] sysctl: remove all extern declaration from sysctl.c
Date: Mon, 4 May 2020 11:25:52 +1000 [thread overview]
Message-ID: <20200504112552.4dbdd2a9@canb.auug.org.au> (raw)
In-Reply-To: <20200424064338.538313-4-hch@lst.de>
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Hi Christoph,
On Fri, 24 Apr 2020 08:43:36 +0200 Christoph Hellwig <hch@lst.de> wrote:
>
> Extern declarations in .c files are a bad style and can lead to
> mismatches. Use existing definitions in headers where they exist,
> and otherwise move the external declarations to suitable header
> files.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> include/linux/coredump.h | 4 ++++
> include/linux/file.h | 2 ++
> include/linux/mm.h | 2 ++
> include/linux/mmzone.h | 2 ++
> include/linux/pid.h | 3 +++
> include/linux/sysctl.h | 8 +++++++
> kernel/sysctl.c | 45 +++-------------------------------------
> 7 files changed, 24 insertions(+), 42 deletions(-)
A couple of suggestions for another patch (since this one is in a
shared branch in Al's tree now):
There is an "extern struct ctl_table random_table[];" in
drivers/char/random.c which is redundant now (in fact always was).
There is already an "extern struct ctl_table epoll_table[];" in
include/linux/poll.h, so could have included that in kernel/sysctl.c
instead of adding the new one in include/linux/sysctl.h
--
Cheers,
Stephen Rothwell
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next prev parent reply other threads:[~2020-05-04 1:26 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-24 6:43 pass kernel pointers to the sysctl ->proc_handler method v3 Christoph Hellwig
2020-04-24 6:43 ` [PATCH 1/5] bpf-cgroup: remove unused exports Christoph Hellwig
2020-04-24 6:43 ` [PATCH 2/5] mm: remove watermark_boost_factor_sysctl_handler Christoph Hellwig
2020-05-04 18:41 ` Kees Cook
2020-04-24 6:43 ` [PATCH 3/5] sysctl: remove all extern declaration from sysctl.c Christoph Hellwig
2020-05-04 1:25 ` Stephen Rothwell [this message]
2020-05-04 18:42 ` Kees Cook
2020-04-24 6:43 ` [PATCH 4/5] sysctl: avoid forward declarations Christoph Hellwig
2020-05-04 18:44 ` Kees Cook
2020-04-24 6:43 ` [PATCH 5/5] sysctl: pass kernel pointers to ->proc_handler Christoph Hellwig
2020-04-24 19:06 ` Andrey Ignatov
2020-04-27 5:34 ` Christoph Hellwig
2020-05-04 19:01 ` Kees Cook
2020-05-05 5:57 ` Christoph Hellwig
2020-04-26 15:51 ` pass kernel pointers to the sysctl ->proc_handler method v3 Alexei Starovoitov
2020-04-27 5:35 ` Christoph Hellwig
2020-04-26 15:59 ` Al Viro
2020-04-27 5:36 ` Christoph Hellwig
2020-04-27 7:15 ` Al Viro
-- strict thread matches above, loose matches on Subject: below --
2020-04-21 17:15 pass kernel pointers to the sysctl ->proc_handler method v2 Christoph Hellwig
2020-04-21 17:15 ` [PATCH 3/5] sysctl: remove all extern declaration from sysctl.c Christoph Hellwig
2020-04-22 10:30 ` Vlastimil Babka
2020-04-22 17:24 ` Christoph Hellwig
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