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 33 extern char modprobe_path[]; /* for sysctl */ 34 /* modprobe exit status on success, -ve on error. Return value 35 * usually useless though. */ 36 extern __printf(2, 3) 37 int __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 43 static inline int request_module(const char *name, ...) { return -ENOSYS; } 44 static 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