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From: Zack Weinberg <zackw@panix.com>
To: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: "Alejandro Colomar (man-pages)" <alx.manpages@gmail.com>,
	linux-man <linux-man@vger.kernel.org>,
	GNU C Library <libc-alpha@sourceware.org>,
	LKML <linux-kernel@vger.kernel.org>,
	gcc-patches@gcc.gnu.org,
	"Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>,
	bpf <bpf@vger.kernel.org>
Subject: Re: [RFC] bpf.2: Use standard types and attributes
Date: Sun, 25 Apr 2021 15:12:05 -0400
Message-ID: <CAKCAbMhaaxiR6HpFZB=bjWyCdNNaA-5ehiujW0TrNuKvQPV=2g@mail.gmail.com> (raw)
In-Reply-To: <CAADnVQJU=r0qE-4ZHsvX4YndbFgDGvzAgNgVo7kPMGF4jCrVeg@mail.gmail.com>

On Sun, Apr 25, 2021 at 12:52 PM Alexei Starovoitov via Libc-alpha
<libc-alpha@sourceware.org> wrote:
> On Sat, Apr 24, 2021 at 10:56 AM Alejandro Colomar (man-pages)
> <alx.manpages@gmail.com> wrote:
> >
> > Hello Alexei,
> >
> > On 4/24/21 1:20 AM, Alexei Starovoitov wrote:
> > > Nack.
> > > The man page should describe the kernel api the way it is in .h file.
> >
> > Why?
>
> Because man page must describe the linux uapi headers the way they
> are installed in the system and not invent alternative implementations.
> The users will include those .h with __u32 and will see them in their code.
> Man page saying something else is a dangerous lie.

Why do you consider it _dangerous_ for the manpages to replace __u32
with uint32_t, when we know by construction that the two types will
always be the same?  Alejandro's preference for the types standardized
by ISO C seems perfectly reasonable to me for documentation; people
reading the documentation can be expected to already know what they
mean, unlike the  Linux-specifc __[iu]NN types.  Also, all else being
equal, documentation should avoid use of symbols in the ISO C reserved
namespace.

If anything I would argue that it is the uapi headers that should be
changed, to use the <stdint.h> types.

zw

  reply index

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210423230609.13519-1-alx.manpages@gmail.com>
2021-04-23 23:20 ` Alexei Starovoitov
2021-04-24 17:56   ` Alejandro Colomar (man-pages)
2021-04-25 16:52     ` Alexei Starovoitov
2021-04-25 19:12       ` Zack Weinberg [this message]
2021-04-24 20:43   ` David Laight
2021-04-25 19:16     ` Zack Weinberg
2021-04-25 21:09       ` David Laight
2021-05-04 11:05 ` [RFC v2] " Alejandro Colomar
2021-05-04 14:12   ` Alexei Starovoitov
2021-05-04 14:24     ` Greg KH
2021-05-04 15:53       ` Alejandro Colomar (man-pages)
2021-05-04 16:06         ` Greg KH
2021-05-04 18:37           ` Zack Weinberg
2021-05-04 18:54             ` Alejandro Colomar (man-pages)
2021-05-04 19:45               ` Florian Weimer
2021-05-04 19:59                 ` Alejandro Colomar (man-pages)
2021-05-05  8:23                 ` David Laight
2021-05-05 22:22                   ` Joseph Myers
2021-05-04 20:06               ` Daniel Borkmann
2021-05-04 20:16                 ` Alejandro Colomar (man-pages)
2021-05-04 20:33                 ` Zack Weinberg
2021-05-04 21:23                   ` Alexei Starovoitov
2021-05-15 19:01               ` [PATCH v3] " Alejandro Colomar
2021-05-16  9:16                 ` Alejandro Colomar (man-pages)
2021-05-17 18:56                   ` Daniel Borkmann
2021-05-21 11:12                     ` Alejandro Colomar
2021-05-04 16:08         ` [RFC v2] " Daniel Borkmann

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