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dbc11f539d
On Tue, Oct 31, Hugh Dickins wrote:
> +++ linux/include/asm-powerpc/current.h 2006-10-30 19:27:05.000000000 +0000
> +static inline struct task_struct *get_current(void)
> +{
> + struct task_struct *task;
> +
> + __asm__ __volatile__("ld %0,%1(13)"
> + : "=r" (task)
> + : "i" (offsetof(struct paca_struct, __current)));
This breaks compile of 2.6.18.8:
CC [M] drivers/media/video/pwc/pwc-uncompress.o
In file included from /home/olaf/kernel/linux-2.6.18.8/drivers/media/video/pwc/pwc-uncompress.c:29:
include2/asm/current.h: In function 'get_current':
include2/asm/current.h:23: warning: implicit declaration of function 'offsetof'
include2/asm/current.h:23: error: expected expression before 'struct'
make[5]: *** [drivers/media/video/pwc/pwc-uncompress.o] Error 1
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
41 lines
835 B
C
41 lines
835 B
C
#ifndef _ASM_POWERPC_CURRENT_H
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#define _ASM_POWERPC_CURRENT_H
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#ifdef __KERNEL__
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/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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struct task_struct;
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#ifdef __powerpc64__
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#include <linux/stddef.h>
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#include <asm/paca.h>
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static inline struct task_struct *get_current(void)
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{
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struct task_struct *task;
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__asm__ __volatile__("ld %0,%1(13)"
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: "=r" (task)
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: "i" (offsetof(struct paca_struct, __current)));
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return task;
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}
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#define current get_current()
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#else
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/*
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* We keep `current' in r2 for speed.
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*/
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register struct task_struct *current asm ("r2");
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#endif
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#endif /* __KERNEL__ */
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#endif /* _ASM_POWERPC_CURRENT_H */
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