1 /* 2 * Copyright (c) 2020 Fran��ois Tigeot <ftigeot@wolfpond.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#ifndef _LINUX_MODULEPARAM_H_ 28#define _LINUX_MODULEPARAM_H_ 29 30#include <linux/init.h> 31#include <linux/stringify.h> 32#include <linux/kernel.h> 33 34#define MODULE_PARM_DESC(name, desc) 35 36#define _TUNABLE_PREFIX __stringify(KBUILD_MODNAME) 37#define _TUNABLE_VAR(name) _TUNABLE_PREFIX#name 38 39#define TUNABLE_int(name, var) TUNABLE_INT( _TUNABLE_VAR(.name), &(var)) 40 41#define TUNABLE_bool(name, var) TUNABLE_INT( _TUNABLE_VAR(.name), (int *)&(var)) 42 43#define TUNABLE_uint(name, var) TUNABLE_INT( _TUNABLE_VAR(.name), (int *)&(var)) 44 45#define TUNABLE_charp(name, var) /* kgetenv() could be useful here */ 46 47#define module_param(var, type, mode) \ 48 TUNABLE_##type(name, var) 49 50#define module_param_unsafe(var, type, mode) module_param(var, type, mode) 51 52#define module_param_named(name, var, type, mode) \ 53 TUNABLE_##type(name, var) 54 55#define module_param_named_unsafe(name, var, type, mode) \ 56 TUNABLE_##type((name), (var)) 57 58#endif /* _LINUX_MODULEPARAM_H_ */ 59