From: "H. Peter Anvin" <hpa@zytor.com>
To: tytso@mit.edu, Sandy Harris <sandyinchina@gmail.com>,
Jeffrey Walton <noloader@gmail.com>, John Denker <jsd@av8n.com>,
LKML <linux-kernel@vger.kernel.org>,
Stephan Mueller <smueller@chronox.de>,
Herbert Xu <herbert@gondor.apana.org.au>,
Andi Kleen <andi@firstfloor.org>,
Jason Cooper <cryptography@lakedaemon.net>,
linux-crypto@vger.kernel.org
Subject: Re: better patch for linux/bitops.h
Date: Thu, 5 May 2016 17:13:53 -0700 [thread overview]
Message-ID: <02b472c7-4faf-3e2a-95ad-1025e7a81bb9@zytor.com> (raw)
In-Reply-To: <20160505221809.GC17625@thunk.org>
On 05/05/2016 03:18 PM, tytso@mit.edu wrote:
>
> So this is why I tend to take a much more pragmatic viewpoint on
> things. Sure, it makes sense to pay attention to what the C standard
> writers are trying to do to us; but if we need to suppress certain
> optimizations to write sane kernel code --- I'm ok with that. And
> this is why using a trust-but-verify on a specific set of compilers
> and ranges of compiler versions is a really good idea....
>
For the record, the "portable" construct has apparently only been
supported since gcc 4.6.3.
-hpa
next prev parent reply other threads:[~2016-05-06 0:14 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-02 6:26 [RFC PATCH 0/3] random: replace urandom pool with a CRNG Theodore Ts'o
2016-05-02 6:26 ` [PATCH 1/3] random: replace non-blocking pool with a Chacha20-based CRNG Theodore Ts'o
2016-05-03 8:50 ` Stephan Mueller
2016-05-04 16:54 ` Jeffrey Walton
2016-05-04 17:30 ` tytso
2016-05-04 17:52 ` H. Peter Anvin
2016-05-03 9:36 ` Stephan Mueller
2016-05-04 6:24 ` Stephan Mueller
2016-05-04 14:40 ` Jeffrey Walton
2016-05-04 17:49 ` tytso
2016-05-04 18:22 ` Jeffrey Walton
2016-05-04 18:29 ` H. Peter Anvin
2016-05-04 19:07 ` tytso
2016-05-04 20:53 ` H. Peter Anvin
2016-05-04 21:42 ` John Denker
2016-05-04 21:52 ` better patch for linux/bitops.h John Denker
2016-05-05 1:35 ` Jeffrey Walton
2016-05-05 2:41 ` H. Peter Anvin
2016-05-05 2:54 ` Jeffrey Walton
2016-05-05 3:08 ` H. Peter Anvin
2016-05-05 3:30 ` Jeffrey Walton
2016-05-05 3:50 ` Theodore Ts'o
2016-05-05 4:03 ` Jeffrey Walton
2016-05-05 6:35 ` H. Peter Anvin
2016-05-05 16:15 ` UB in general ... and linux/bitops.h in particular John Denker
2016-05-05 17:32 ` Andi Kleen
2016-05-06 2:25 ` Jeffrey Walton
2016-05-05 21:34 ` better patch for linux/bitops.h Sandy Harris
2016-05-05 22:18 ` tytso
2016-05-05 22:22 ` H. Peter Anvin
2016-05-05 22:38 ` H. Peter Anvin
2016-05-06 0:13 ` H. Peter Anvin [this message]
2016-05-04 21:56 ` [PATCH 1/3] random: replace non-blocking pool with a Chacha20-based CRNG H. Peter Anvin
2016-05-04 22:06 ` linux/bitops.h John Denker
2016-05-04 23:06 ` linux/bitops.h Andi Kleen
2016-05-05 0:13 ` linux/bitops.h John Denker
2016-05-05 1:20 ` linux/bitops.h Jeffrey Walton
2016-05-05 1:27 ` linux/bitops.h H. Peter Anvin
2016-05-05 0:30 ` linux/bitops.h H. Peter Anvin
2016-05-05 0:48 ` linux/bitops.h Linus Torvalds
2016-05-06 20:08 ` linux/bitops.h Sasha Levin
2016-05-06 20:07 ` linux/bitops.h Sasha Levin
2016-05-06 20:25 ` linux/bitops.h H. Peter Anvin
2016-05-06 20:30 ` linux/bitops.h H. Peter Anvin
2016-05-02 6:26 ` [PATCH 2/3] random: make /dev/urandom scalable for silly userspace programs Theodore Ts'o
2016-05-02 7:00 ` Stephan Mueller
2016-05-02 12:50 ` Theodore Ts'o
2016-05-02 13:48 ` Theodore Ts'o
2016-05-02 13:53 ` Stephan Mueller
2016-05-02 6:26 ` [PATCH 3/3] random: add interrupt callback to VMBus IRQ handler Theodore Ts'o
2016-05-02 9:00 ` Jeffrey Walton
2016-05-02 9:14 ` Stephan Mueller
2016-05-02 12:56 ` Theodore Ts'o
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