1#ifndef __LINUX_KMOD_H__
2#define __LINUX_KMOD_H__
3
4/*
5 * include/linux/kmod.h
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22#include <linux/umh.h>
23#include <linux/gfp.h>
24#include <linux/stddef.h>
25#include <linux/errno.h>
26#include <linux/compiler.h>
27#include <linux/workqueue.h>
28#include <linux/sysctl.h>
29
30#define KMOD_PATH_LEN 256
31
32#ifdef CONFIG_MODULES
33extern char modprobe_path[]; /* for sysctl */
34/* modprobe exit status on success, -ve on error. Return value
35 * usually useless though. */
36extern __printf(2, 3)
37int __request_module(bool wait, const char *name, ...);
38#define request_module(mod...) __request_module(true, mod)
39#define request_module_nowait(mod...) __request_module(false, mod)
40#define try_then_request_module(x, mod...) \
41 ((x) ?: (__request_module(true, mod), (x)))
42#else
43static inline int request_module(const char *name, ...) { return -ENOSYS; }
44static inline int request_module_nowait(const char *name, ...) { return -ENOSYS; }
45#define try_then_request_module(x, mod...) (x)
46#endif
47
48#endif /* __LINUX_KMOD_H__ */
49