From: "H. Peter Anvin" <hpa@zytor.com>
To: "Randy.Dunlap" <rdunlap@xenotime.net>
Cc: Ralf Baechle <ralf@linux-mips.org>,
akpm@osdl.org, erik_frederiksen@pmc-sierra.com,
linux-kernel@vger.kernel.org
Subject: Re: IS_ERR Threshold Value
Date: Sat, 01 Jul 2006 15:23:31 -0700 [thread overview]
Message-ID: <44A6F5E3.8000300@zytor.com> (raw)
In-Reply-To: <20060701114409.ed320be0.rdunlap@xenotime.net>
Randy.Dunlap wrote:
>
> Are changes also needed in asm-*/unistd.h::syscall_return() macros?
> or is syscall_return() just not used?
>
> e.g.,
> arm26 uses -125 to detect error
> arm uses -129 to detect error
> frv uses -4095 to detect error
> i386 uses -129
> h8300, m32r, s390, sh64, v850 use -125
> m68k[nommu] uses -125
> sh uses -124
> x86_64 uses -127
>
... and they're pretty much all wrong (in some cases, they're actually
less than actual errno values on that architecture!)
It pretty much works because they're not used. They should either be
fixed or removed.
-hpa
next prev parent reply other threads:[~2006-07-01 22:23 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-28 20:57 IS_ERR Threshold Value Erik Frederiksen
2006-06-28 21:08 ` Randy.Dunlap
2006-06-28 22:39 ` H. Peter Anvin
2006-06-29 18:10 ` Ralf Baechle
2006-07-01 18:44 ` Randy.Dunlap
2006-07-01 22:23 ` H. Peter Anvin [this message]
2006-07-02 16:15 ` Ralf Baechle
2006-07-02 17:40 ` H. Peter Anvin
2006-07-02 18:22 ` Randy.Dunlap
2006-07-02 18:27 ` [PATCH] consistently use MAX_ERRNO in __syscall_return Randy.Dunlap
2006-07-03 7:39 ` Andrew Morton
2006-07-03 15:03 ` H. Peter Anvin
2006-07-03 15:42 ` Randy.Dunlap
2006-07-03 16:09 ` H. Peter Anvin
2006-10-16 19:31 ` IS_ERR Threshold Value Andreas Mohr
2006-10-18 12:47 ` Jan Engelhardt
2006-06-28 22:41 ` Nathan Scott
2006-06-28 23:13 ` Erik Frederiksen
2006-06-28 23:22 ` Randy.Dunlap
2006-06-28 23:23 ` Nathan Scott
[not found] <6sPiW-295-5@gated-at.bofh.it>
[not found] ` <6sPsw-2y4-19@gated-at.bofh.it>
[not found] ` <6t9hu-6l6-11@gated-at.bofh.it>
[not found] ` <76GtI-T6-21@gated-at.bofh.it>
[not found] ` <77jbT-1y3-29@gated-at.bofh.it>
2006-10-18 23:29 ` Bodo Eggert
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=44A6F5E3.8000300@zytor.com \
--to=hpa@zytor.com \
--cc=akpm@osdl.org \
--cc=erik_frederiksen@pmc-sierra.com \
--cc=linux-kernel@vger.kernel.org \
--cc=ralf@linux-mips.org \
--cc=rdunlap@xenotime.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox