[linux-block.git] / include / linux / kmod.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __LINUX_KMOD_H__
#define __LINUX_KMOD_H__

/*
 *	include/linux/kmod.h
 */

#include <linux/umh.h>
#include <linux/gfp.h>
#include <linux/stddef.h>
#include <linux/errno.h>
#include <linux/compiler.h>
#include <linux/workqueue.h>
#include <linux/sysctl.h>

#define KMOD_PATH_LEN 256

#ifdef CONFIG_MODULES
extern char modprobe_path[]; /* for sysctl */
/* modprobe exit status on success, -ve on error.  Return value
 * usually useless though. */
extern __printf(2, 3)
int __request_module(bool wait, const char *name, ...);
#define request_module(mod...) __request_module(true, mod)
#define request_module_nowait(mod...) __request_module(false, mod)
#define try_then_request_module(x, mod...) \
	((x) ?: (__request_module(true, mod), (x)))
#else
static inline int request_module(const char *name, ...) { return -ENOSYS; }
static inline int request_module_nowait(const char *name, ...) { return -ENOSYS; }
#define try_then_request_module(x, mod...) (x)
#endif

#endif /* __LINUX_KMOD_H__ */
Commit	Line	Data
74ba9207	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
1da177e4 LT	2	#ifndef __LINUX_KMOD_H__
	3	#define __LINUX_KMOD_H__
	4
	5	/*
	6	* include/linux/kmod.h
1da177e4 LT	7	*/
1da177e4 LT	8
c1f3fa2a	9	#include <linux/umh.h>
ac331d15	10	#include <linux/gfp.h>
7888e7ff	11	#include <linux/stddef.h>
1da177e4 LT	12	#include <linux/errno.h>
1da177e4 LT	13	#include <linux/compiler.h>
a06a4dc3	14	#include <linux/workqueue.h>
17f60a7d	15	#include <linux/sysctl.h>
1da177e4 LT	16
	17	#define KMOD_PATH_LEN 256
	18
a1ef5adb	19	#ifdef CONFIG_MODULES
5ed10910	20	extern char modprobe_path[]; /* for sysctl */
1da177e4 LT	21	/* modprobe exit status on success, -ve on error. Return value
1da177e4 LT	22	* usually useless though. */
b9075fa9 JP	23	extern __printf(2, 3)
b9075fa9 JP	24	int __request_module(bool wait, const char *name, ...);
acae0515 AV	25	#define request_module(mod...) __request_module(true, mod)
	26	#define request_module_nowait(mod...) __request_module(false, mod)
	27	#define try_then_request_module(x, mod...) \
97c18e2c	28	((x) ?: (__request_module(true, mod), (x)))
1da177e4	29	#else
acae0515 AV	30	static inline int request_module(const char *name, ...) { return -ENOSYS; }
acae0515 AV	31	static inline int request_module_nowait(const char *name, ...) { return -ENOSYS; }
df648c9f	32	#define try_then_request_module(x, mod...) (x)
1da177e4 LT	33	#endif
1da177e4 LT	34
1da177e4	35	#endif /* __LINUX_KMOD_H__ */