1 /* $OpenBSD: subr_xxx.c,v 1.6 1997/11/06 05:58:20 csapuntz Exp $ */ 2 /* $NetBSD: subr_xxx.c,v 1.10 1996/02/04 02:16:51 christos Exp $ */ 3 4 /* 5 * Copyright (c) 1982, 1986, 1991, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)subr_xxx.c 8.1 (Berkeley) 6/10/93 37 */ 38 39 /* 40 * Miscellaneous trivial functions, including many 41 * that are often inline-expanded or done in assembler. 42 */ 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 46 #include <machine/cpu.h> 47 48 /* 49 * Unsupported device function (e.g. writing to read-only device). 50 */ 51 int 52 enodev() 53 { 54 55 return (ENODEV); 56 } 57 58 /* 59 * Unconfigured device function; driver not configured. 60 */ 61 int 62 enxio() 63 { 64 65 return (ENXIO); 66 } 67 68 /* 69 * Unsupported ioctl function. 70 */ 71 int 72 enoioctl() 73 { 74 75 return (ENOTTY); 76 } 77 78 /* 79 * Unsupported system function. 80 * This is used for an otherwise-reasonable operation 81 * that is not supported by the current system binary. 82 */ 83 int 84 enosys () 85 { 86 87 return (ENOSYS); 88 } 89 90 /* 91 * Return error for operation not supported 92 * on a specific object or file type. 93 */ 94 /*ARGSUSED*/ 95 int 96 eopnotsupp(v) 97 void *v; 98 { 99 100 return (EOPNOTSUPP); 101 } 102 103 /* 104 * Generic null operation, always returns success. 105 */ 106 /*ARGSUSED*/ 107 int 108 nullop(v) 109 void *v; 110 { 111 112 return (0); 113 } 114