#ifndef __LINUX_MUTEX_H #define __LINUX_MUTEX_H struct mutex { }; #define DEFINE_MUTEX(m) struct mutex m static inline void mutex_init(struct mutex *m) { (void) m; } static inline void mutex_lock(struct mutex *m) { (void) m; } static inline int mutex_lock_interruptible(struct mutex *m) { (void) m; return 0; } static inline void mutex_unlock(struct mutex *m) { (void) m; } #endif