[TCP]: Appropriate Byte Count support
[deliverable/linux.git] / include / linux / kmod.h
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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
7888e7ff 22#include <linux/stddef.h>
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23#include <linux/config.h>
24#include <linux/errno.h>
25#include <linux/compiler.h>
26
27#define KMOD_PATH_LEN 256
28
29#ifdef CONFIG_KMOD
30/* modprobe exit status on success, -ve on error. Return value
31 * usually useless though. */
32extern int request_module(const char * name, ...) __attribute__ ((format (printf, 1, 2)));
33#else
34static inline int request_module(const char * name, ...) { return -ENOSYS; }
35#endif
36
37#define try_then_request_module(x, mod...) ((x) ?: (request_module(mod), (x)))
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38
39struct key;
40extern int call_usermodehelper_keys(char *path, char *argv[], char *envp[],
41 struct key *session_keyring, int wait);
42
43static inline int
44call_usermodehelper(char *path, char **argv, char **envp, int wait)
45{
46 return call_usermodehelper_keys(path, argv, envp, NULL, wait);
47}
48
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49extern void usermodehelper_init(void);
50
51#endif /* __LINUX_KMOD_H__ */
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