1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_FUTEX_H 3 #define _ASM_FUTEX_H 4 5 #ifdef __KERNEL__ 6 7 #include <linux/futex.h> 8 #include <asm/errno.h> 9 #include <linux/uaccess.h> 10 11 extern int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, 12 u32 __user *uaddr); 13 14 static inline int futex_atomic_cmpxchg_inatomic(u32 * uval,u32 __user * uaddr,u32 oldval,u32 newval)15futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, 16 u32 oldval, u32 newval) 17 { 18 return -ENOSYS; 19 } 20 21 #endif 22 #endif 23