root/include/linux/kmod.h

INCLUDED FROM

DEFINITIONS

1. request_module
2. request_module_nowait

   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__ */