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From: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
To: Finn Thain <fthain@telegraphics.com.au>
Cc: Kees Cook <keescook@chromium.org>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	"Gustavo A. R. Silva" <gustavoars@kernel.org>,
	Joe Perches <joe@perches.com>, Jakub Kicinski <kuba@kernel.org>,
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	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	Greg KH <gregkh@linuxfoundation.org>
Subject: Re: [Intel-wired-lan] [PATCH 000/141] Fix fall-through warnings for Clang
Date: Wed, 25 Nov 2020 02:05:49 +0100
Message-ID: <CANiq72m2kGxSy2E9jgYE4_xRV6h9rFqiJP25KXs_5ObYnH_nmA@mail.gmail.com> (raw)
In-Reply-To: <alpine.LNX.2.23.453.2011251022550.14@nippy.intranet>

On Wed, Nov 25, 2020 at 12:53 AM Finn Thain <fthain@telegraphics.com.au> wrote:
>
> I'm saying that supporting the official language spec makes more sense
> than attempting to support a multitude of divergent interpretations of the
> spec (i.e. gcc, clang, coverity etc.)

Making the kernel strictly conforming is a ship that sailed long ago,
for several reasons. Anyway, supporting several compilers and other
tools, regardless of extensions, is valuable.

> I'm also saying that the reason why we use -std=gnu89 is that existing
> code was written in that language, not in ad hoc languages comprised of
> collections of extensions that change with every release.

No, we aren't particularly tied to `gnu89` or anything like that. We
could actually go for `gnu11` already, since the minimum GCC and Clang
support it. Even if a bit of code needs fixing, that shouldn't be a
problem if someone puts the work.

In other words, the kernel code is not frozen, nor are the features it
uses from compilers. They do, in fact, change from time to time.

> Thank you for checking. I found a free version that's only 6 weeks old:

You're welcome! There are quite a few new attributes coming, mostly
following C++ ones.

> It will be interesting to see whether 6.7.11.5 changes once the various
> implementations reach agreement.

Not sure what you mean. The standard does not evolve through
implementations' agreement (although standardizing existing practice
is one of the best arguments to back a change).

Cheers,
Miguel

  reply index

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-20 18:21 Gustavo A. R. Silva
2020-11-20 18:28 ` Joe Perches
2020-11-20 19:02   ` Gustavo A. R. Silva
2020-11-20 18:40 ` [PATCH 134/141] video: fbdev: lxfb_ops: " Gustavo A. R. Silva
2020-11-22 22:05   ` Sam Ravnborg
2020-11-24 14:44     ` Gustavo A. R. Silva
2020-11-20 18:40 ` [PATCH 135/141] video: fbdev: pm2fb: " Gustavo A. R. Silva
2020-11-20 18:53 ` [PATCH 000/141] " Jakub Kicinski
2020-11-20 19:04   ` Gustavo A. R. Silva
2020-11-20 19:30   ` Kees Cook
2020-11-20 19:51     ` Jakub Kicinski
2020-11-20 20:48       ` Kees Cook
2020-11-22 16:17       ` Kees Cook
2020-11-22 18:21         ` James Bottomley
2020-11-22 18:25           ` Joe Perches
2020-11-22 19:12             ` James Bottomley
2020-11-22 19:22               ` Joe Perches
2020-11-22 19:53                 ` James Bottomley
2020-11-23 13:03                   ` [Intel-wired-lan] " Gustavo A. R. Silva
2020-11-23 16:31                     ` James Bottomley
2020-11-24 21:32                       ` Kees Cook
2020-11-24 22:24                         ` Finn Thain
2020-11-24 23:15                           ` Miguel Ojeda
2020-11-24 23:53                             ` Finn Thain
2020-11-25  1:05                               ` Miguel Ojeda [this message]
2020-11-25  7:05                         ` James Bottomley
2020-11-25 12:24                           ` Nick Desaulniers
2020-11-25 21:33                             ` Finn Thain
2020-11-25 22:09                               ` Nick Desaulniers
2020-11-25 23:21                                 ` Finn Thain
2020-11-26  0:30                                 ` Finn Thain
     [not found]                             ` <20201125082405.1d8c23dc@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
2020-11-25 17:04                               ` Miguel Ojeda
2020-11-25 22:09                               ` Nick Desaulniers
2020-11-25 21:10                           ` Kees Cook
2020-11-22 20:35           ` Miguel Ojeda
2020-11-22 22:36             ` James Bottomley
2020-11-23 14:19               ` Miguel Ojeda
2020-11-23 15:58                 ` James Bottomley
2020-11-23 16:24                   ` Rafael J. Wysocki
2020-11-23 16:32                   ` Joe Perches
2020-11-23 18:56                   ` Miguel Ojeda
2020-11-23 20:37                     ` James Bottomley
2020-11-25  0:32                       ` Miguel Ojeda
2020-11-25 22:44                         ` Edward Cree
2020-11-26 14:53                           ` Miguel Ojeda
2020-11-26 15:28                             ` Geert Uytterhoeven
2020-11-26 16:18                               ` Karol Herbst
2020-11-26 17:05                               ` Miguel Ojeda
2020-11-25 10:38                       ` Andy Shevchenko
2020-11-25  9:01                   ` Sean Young
2020-11-22 22:54             ` Finn Thain
2020-11-22 23:04               ` James Bottomley
2020-11-23 14:05               ` Miguel Ojeda
2020-11-24  0:58                 ` Finn Thain
2020-11-24  1:05                   ` Joe Perches
2020-11-24  2:48                     ` Finn Thain
2020-11-24 23:46                   ` Miguel Ojeda
2020-11-22 22:10           ` Sam Ravnborg
2020-11-24  1:32         ` Nick Desaulniers
2020-11-24 21:25           ` Kees Cook
2020-11-25 23:02             ` Edward Cree
2020-12-01 14:08           ` Dan Carpenter
2020-12-01 14:04         ` Dan Carpenter
2020-11-20 22:21 ` Miguel Ojeda
2020-11-23 20:03 ` Jason Gunthorpe
2020-11-24 14:47   ` Gustavo A. R. Silva
     [not found] ` <160616392671.21180.16517492185091399884.b4-ty@kernel.org>
2020-11-24 14:47   ` Gustavo A. R. Silva
2020-12-01  5:52 ` Martin K. Petersen
2020-12-01  8:20   ` Gustavo A. R. Silva
2020-12-08  4:52 ` (subset) " Martin K. Petersen

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