From: "H. Peter Anvin" <hpa@kernel.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Jaswinder Singh Rajput <jaswinder@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Sam Ravnborg <sam@ravnborg.org>,
Jaswinder Singh Rajput <jaswinderrajput@gmail.com>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [mingo@elte.hu: [git pull] headers_check fixes]
Date: Wed, 28 Jan 2009 09:48:21 -0800 [thread overview]
Message-ID: <49809A65.2090501@kernel.org> (raw)
In-Reply-To: <200901281337.52294.arnd@arndb.de>
Arnd Bergmann wrote:
>
> For the specific x86 swab code, that would certainly be the simplest
> way, user space should not be using those inline assemblies either
> way.
>
> I think the more interesting question is whether we want to export
> *any* inline helpers that are not part of the ABI to user space.
> We already killed most of them (spinlocks, atomics, ...) and what
> remains is basically just the byteorder code. All that is required
> for the ABI is the information whether the system is big- or
> little-endian, but not all the rest.
>
In general, no. The byteswap API is a legacy exception.
-hpa
next prev parent reply other threads:[~2009-01-28 17:49 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090127222825.GA27097@elte.hu>
2009-01-27 22:57 ` [mingo@elte.hu: [git pull] headers_check fixes] Linus Torvalds
2009-01-27 23:22 ` H. Peter Anvin
2009-01-27 23:29 ` Linus Torvalds
2009-01-28 0:12 ` H. Peter Anvin
2009-01-28 0:19 ` Linus Torvalds
2009-01-28 1:02 ` H. Peter Anvin
2009-01-27 23:31 ` Ingo Molnar
2009-01-27 23:43 ` Linus Torvalds
2009-01-27 23:51 ` Vegard Nossum
2009-01-30 14:01 ` Jaswinder Singh Rajput
2009-01-30 18:20 ` Ingo Molnar
2009-01-28 0:03 ` Harvey Harrison
2009-01-28 1:36 ` Jaswinder Singh Rajput
2009-01-28 12:37 ` Arnd Bergmann
2009-01-28 17:48 ` H. Peter Anvin [this message]
2009-01-28 19:22 ` Harvey Harrison
2009-01-28 19:44 ` Linus Torvalds
2009-01-28 20:03 ` Harvey Harrison
2009-01-28 21:25 ` H. Peter Anvin
2009-01-28 21:58 ` [PATCH] x86: do not expose CONFIG_BSWAP to userspace Harvey Harrison
2009-01-28 22:13 ` Linus Torvalds
2009-01-28 22:40 ` Harvey Harrison
2009-01-30 20:37 ` Pavel Machek
2009-01-28 22:15 ` H. Peter Anvin
2009-01-28 22:38 ` Harvey Harrison
2009-01-28 23:04 ` Ben Pfaff
2009-01-30 18:20 ` H. Peter Anvin
2009-01-28 23:27 ` H. Peter Anvin
2009-01-28 23:36 ` Harvey Harrison
2009-01-28 23:47 ` H. Peter Anvin
2009-02-03 18:19 ` Arnd Bergmann
2009-01-31 18:43 ` Maciej W. Rozycki
2009-01-31 20:24 ` H. Peter Anvin
2009-01-28 23:24 ` Arnd Bergmann
2009-01-28 23:30 ` H. Peter Anvin
2009-01-28 20:49 ` [mingo@elte.hu: [git pull] headers_check fixes] Sam Ravnborg
2009-01-28 21:23 ` H. Peter Anvin
2009-01-28 21:06 ` Sam Ravnborg
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