module.h revision 268316 
1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice unmodified, this list of conditions, and the following
12 *    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 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28#ifndef	_LINUX_MODULE_H_
29#define	_LINUX_MODULE_H_
30
31#include <linux/list.h>
32#include <linux/compiler.h>
33#include <linux/kobject.h>
34#include <linux/moduleparam.h>
35#include <linux/slab.h>
36
37#define MODULE_AUTHOR(name)
38#define MODULE_DESCRIPTION(name)
39#define MODULE_LICENSE(name)
40#define	MODULE_VERSION(name)
41
42#define	THIS_MODULE	((struct module *)0)
43
44#define	EXPORT_SYMBOL(name)
45#define	EXPORT_SYMBOL_GPL(name)
46
47/* OFED pre-module initialization */
48#define	SI_SUB_OFED_PREINIT	(SI_SUB_KTHREAD_INIT - 2)
49/* OFED default module initialization */
50#define	SI_SUB_OFED_MODINIT	(SI_SUB_KTHREAD_INIT - 1)
51
52#include <sys/linker.h>
53
54static inline void
55_module_run(void *arg)
56{
57	void (*fn)(void);
58#ifdef OFED_DEBUG_INIT
59	char name[1024];
60	caddr_t pc;
61	long offset;
62
63	pc = (caddr_t)arg;
64	if (linker_search_symbol_name(pc, name, sizeof(name), &offset) != 0)
65		printf("Running ??? (%p)\n", pc);
66	else
67		printf("Running %s (%p)\n", name, pc);
68#endif
69	fn = arg;
70	DROP_GIANT();
71	fn();
72	PICKUP_GIANT();
73}
74
75#define	module_init(fn)							\
76	SYSINIT(fn, SI_SUB_OFED_MODINIT, SI_ORDER_FIRST, _module_run, (fn))
77
78/*
79 * XXX This is a freebsdism designed to work around not having a module
80 * load order resolver built in.
81 */
82#define	module_init_order(fn, order)					\
83	SYSINIT(fn, SI_SUB_OFED_MODINIT, (order), _module_run, (fn))
84
85#define	module_exit(fn)						\
86	SYSUNINIT(fn, SI_SUB_OFED_MODINIT, SI_ORDER_FIRST, _module_run, (fn))
87
88#define	module_get(module)
89#define	module_put(module)
90#define	try_module_get(module)	1
91
92#endif	/* _LINUX_MODULE_H_ */
93