NetBSD/sys/kern/subr_xxx.c

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/* $NetBSD: subr_xxx.c,v 1.13 2003/08/07 16:31:54 agc Exp $ */
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/*
* Copyright (c) 1982, 1986, 1991, 1993
* The Regents of the University of California. All rights reserved.
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*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
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* @(#)subr_xxx.c 8.3 (Berkeley) 3/29/95
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*/
/*
* Miscellaneous trivial functions, including many
* that are often inline-expanded or done in assembler.
*/
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#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: subr_xxx.c,v 1.13 2003/08/07 16:31:54 agc Exp $");
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#include <sys/param.h>
#include <sys/systm.h>
#include <machine/cpu.h>
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/*
* Unsupported device function (e.g. writing to read-only device).
*/
int
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enodev()
{
return (ENODEV);
}
/*
* Unconfigured device function; driver not configured.
*/
int
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enxio()
{
return (ENXIO);
}
/*
* Unsupported ioctl function.
*/
int
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enoioctl()
{
return (ENOTTY);
}
/*
* Unsupported system function.
* This is used for an otherwise-reasonable operation
* that is not supported by the current system binary.
*/
int
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enosys ()
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{
return (ENOSYS);
}
/*
* Return error for operation not supported
* on a specific object or file type.
*/
int
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eopnotsupp()
{
return (EOPNOTSUPP);
}
/*
* Generic null operation, always returns success.
*/
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/*ARGSUSED*/
int
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nullop(v)
void *v;
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{
return (0);
}