1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2020 Collabora Ltd.
4 */
5#ifndef _SYSCALL_USER_DISPATCH_H
6#define _SYSCALL_USER_DISPATCH_H
7
8#include <linux/thread_info.h>
9
10#ifdef CONFIG_GENERIC_ENTRY
11
12struct syscall_user_dispatch {
13 char __user *selector;
14 unsigned long offset;
15 unsigned long len;
16 bool on_dispatch;
17};
18
19int set_syscall_user_dispatch(unsigned long mode, unsigned long offset,
20 unsigned long len, char __user *selector);
21
22#define clear_syscall_work_syscall_user_dispatch(tsk) \
23 clear_task_syscall_work(tsk, SYSCALL_USER_DISPATCH)
24
25#else
26struct syscall_user_dispatch {};
27
28static inline int set_syscall_user_dispatch(unsigned long mode, unsigned long offset,
29 unsigned long len, char __user *selector)
30{
31 return -EINVAL;
32}
33
34static inline void clear_syscall_work_syscall_user_dispatch(struct task_struct *tsk)
35{
36}
37
38#endif /* CONFIG_GENERIC_ENTRY */
39
40#endif /* _SYSCALL_USER_DISPATCH_H */
41

source code of linux/include/linux/syscall_user_dispatch.h