1 /*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
6 * 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 unmodified, this list of conditions, and the following
13 * disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29 #ifndef _LINUX_MODULE_H_
30 #define _LINUX_MODULE_H_
31
32 #include <linux/list.h>
33 #include <linux/compiler.h>
34 #include <linux/kobject.h>
35 #include <linux/moduleparam.h>
36 #include <linux/slab.h>
37
38 #define MODULE_AUTHOR(name)
39 #define MODULE_DESCRIPTION(name)
40 #define MODULE_LICENSE(name)
41
42 #ifndef MODULE_VERSION
43 #define MODULE_VERSION(name)
44 #endif
45
46 #define THIS_MODULE ((struct module *)0)
47
48 #define EXPORT_SYMBOL(name)
49 #define EXPORT_SYMBOL_GPL(name)
50
51 /* OFED pre-module initialization */
52 #define SI_SUB_OFED_PREINIT (SI_SUB_ROOT_CONF - 2)
53 /* OFED default module initialization */
54 #define SI_SUB_OFED_MODINIT (SI_SUB_ROOT_CONF - 1)
55
56 #include <sys/linker.h>
57
58 static inline void
_module_run(void * arg)59 _module_run(void *arg)
60 {
61 void (*fn)(void);
62 #ifdef OFED_DEBUG_INIT
63 char name[1024];
64 caddr_t pc;
65 long offset;
66
67 pc = (caddr_t)arg;
68 if (linker_search_symbol_name(pc, name, sizeof(name), &offset) != 0)
69 printf("Running ??? (%p)\n", pc);
70 else
71 printf("Running %s (%p)\n", name, pc);
72 #endif
73 fn = arg;
74 DROP_GIANT();
75 fn();
76 PICKUP_GIANT();
77 }
78
79 #define module_init(fn) \
80 SYSINIT(fn, SI_SUB_OFED_MODINIT, SI_ORDER_FIRST, _module_run, (fn))
81
82 #define module_exit(fn) \
83 SYSUNINIT(fn, SI_SUB_OFED_MODINIT, SI_ORDER_SECOND, _module_run, (fn))
84
85 /*
86 * The following two macros are a workaround for not having a module
87 * load and unload order resolver:
88 */
89 #define module_init_order(fn, order) \
90 SYSINIT(fn, SI_SUB_OFED_MODINIT, (order), _module_run, (fn))
91
92 #define module_exit_order(fn, order) \
93 SYSUNINIT(fn, SI_SUB_OFED_MODINIT, (order), _module_run, (fn))
94
95 #define module_get(module)
96 #define module_put(module)
97 #define try_module_get(module) 1
98
99 #endif /* _LINUX_MODULE_H_ */
100