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From: Paul Mackerras <paulus@samba.org>
To: Andrew Morton <akpm@osdl.org>
Cc: Linus Torvalds <torvalds@osdl.org>,
	bunk@fs.tum.de, eyal@eyal.emu.id.au,
	linux-dvb-maintainer@linuxtv.org, linux-kernel@vger.kernel.org
Subject: Re: 2.6.6-rc3: modular DVB tda1004x broken
Date: Sun, 2 May 2004 11:16:18 +1000	[thread overview]
Message-ID: <16532.19426.521556.52852@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <20040501175134.243b389c.akpm@osdl.org>

Andrew Morton writes:

> diff -puN include/asm-ppc64/unistd.h~kernel-syscalls-retval-fix include/asm-ppc64/unistd.h
> --- 25/include/asm-ppc64/unistd.h~kernel-syscalls-retval-fix	2004-05-01 17:06:01.187628160 -0700
> +++ 25-akpm/include/asm-ppc64/unistd.h	2004-05-01 17:21:43.897314504 -0700
> @@ -286,6 +286,17 @@
>  
>  #ifndef __ASSEMBLY__
>  
> +#ifdef __KERNEL__
> +#define __syscall_return	/* */

For ppc and ppc64 a syscall that returns an error puts the positive
error number in r3 and sets the SO bit in CR0.  So if we are expecting
the negative error number as the return value for syscalls in the
kernel we will need this instead:

#define __syscall_return		\
	if (__sc_err & 0x10000000)	\
		__sc_ret = - __sc_ret;

for the #ifdef __KERNEL__ case for both ppc and ppc64.

Thanks,
Paul.

  reply	other threads:[~2004-05-02  1:16 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-28  2:03 Linux 2.6.6-rc3 Linus Torvalds
2004-04-28  8:48 ` Måns Rullgård
2004-04-28  9:16 ` Florian Schirmer
2004-04-28  9:52   ` Armin Schindler
2004-04-28 11:56 ` Eyal Lebedinsky
2004-05-01 11:24   ` 2.6.6-rc3: gcc 2.95: cx88 __ucmpdi2 error Adrian Bunk
2004-05-01 17:45     ` Linus Torvalds
2004-05-01 18:38       ` Andreas Schwab
2004-05-01 18:57         ` Linus Torvalds
2004-05-04 17:13           ` Gerd Knorr
2004-05-01 20:13   ` 2.6.6-rc3: modular DVB tda1004x broken Adrian Bunk
2004-05-01 22:02     ` Johannes Stezenbach
2004-05-01 22:14     ` Andrew Morton
2004-05-01 22:37     ` Linus Torvalds
2004-05-01 23:10       ` Andrew Morton
2004-05-01 23:55         ` Linus Torvalds
2004-05-02  0:00           ` Chris Wedgwood
2004-05-02  0:03             ` Andrew Morton
2004-05-02  0:28             ` Linus Torvalds
2004-05-02  0:51           ` Andrew Morton
2004-05-02  1:16             ` Paul Mackerras [this message]
2004-05-03 18:06             ` David Mosberger
2004-05-03 18:20               ` Linus Torvalds
2004-05-03 18:30                 ` David Mosberger
2004-05-03 18:37                   ` Linus Torvalds
2004-05-03 20:42               ` Linus Torvalds
2004-05-03 20:56                 ` David Mosberger
2004-05-03 21:07                   ` Arjan van de Ven
2004-05-03 22:39                     ` David Mosberger
2004-05-04  7:55                       ` Arjan van de Ven
2004-05-04 16:44                         ` David Mosberger
2004-05-04 16:47                           ` Arjan van de Ven
2004-05-03 21:02                 ` Andrew Morton
2004-05-03 21:06                   ` Arjan van de Ven
2004-05-03 21:16                   ` viro
2004-05-03 21:24                     ` Jörn Engel
2004-05-03 21:54                       ` viro
2004-05-03 22:01                         ` viro
2004-05-03 22:33                         ` Jörn Engel
2004-05-04  0:14                           ` viro
2004-05-04  9:23                             ` Jörn Engel
2004-05-04 12:13                         ` Stephen Smalley
2004-04-28 14:34 ` Linux 2.6.6-rc3 (compile stats) John Cherry
2004-04-28 17:28 ` Linux 2.6.6-rc3 Maciej Soltysiak
2004-04-29  1:02 ` Craig Thomas
2004-04-29  0:59   ` CaT
2004-04-29 17:10     ` Craig Thomas
2004-04-29  2:11   ` Andrew Morton
2004-04-29 15:59     ` Craig Thomas
2004-04-29 17:01 ` Jacek Kawa
2004-04-29 17:32   ` Sam Ravnborg
2004-04-30  1:05     ` Jacek Kawa
     [not found] <1PMQ9-5K6-3@gated-at.bofh.it>
     [not found] ` <1PVTx-4rY-25@gated-at.bofh.it>
     [not found]   ` <1R9hC-6rC-3@gated-at.bofh.it>
     [not found]     ` <1Rbjr-7Y5-17@gated-at.bofh.it>
     [not found]       ` <1RbW9-8sE-17@gated-at.bofh.it>
2004-05-01 23:26         ` 2.6.6-rc3: modular DVB tda1004x broken Andi Kleen
2004-05-01 23:34           ` Andrew Morton

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