1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 #ifndef __LINUX_KMOD_H__ 3 #define __LINUX_KMOD_H__ 4 5 /* 6 * include/linux/kmod.h 7 */ 8 9 #include <linux/umh.h> 10 #include <linux/gfp.h> 11 #include <linux/stddef.h> 12 #include <linux/errno.h> 13 #include <linux/compiler.h> 14 #include <linux/workqueue.h> 15 #include <linux/sysctl.h> 16 17 #define KMOD_PATH_LEN 256 18 19 #ifdef CONFIG_MODULES 20 extern char modprobe_path[]; /* for sysctl */ 21 /* modprobe exit status on success, -ve on error. Return value 22 * usually useless though. */ 23 extern __printf(2, 3) 24 int __request_module(bool wait, const char *name, ...); 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...) \ 28 ((x) ?: (__request_module(true, mod), (x))) 29 #else 30 static inline int request_module(const char *name, ...) { return -ENOSYS; } 31 static inline int request_module_nowait(const char *name, ...) { return -ENOSYS; } 32 #define try_then_request_module(x, mod...) (x) 33 #endif 34 35 #endif /* __LINUX_KMOD_H__ */ 36