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 #include <linux/syscall_user_dispatch_types.h>
10
11 #ifdef CONFIG_GENERIC_ENTRY
12
13 int set_syscall_user_dispatch(unsigned long mode, unsigned long offset,
14 unsigned long len, char __user *selector);
15
16 #define clear_syscall_work_syscall_user_dispatch(tsk) \
17 clear_task_syscall_work(tsk, SYSCALL_USER_DISPATCH)
18
19 int syscall_user_dispatch_get_config(struct task_struct *task, unsigned long size,
20 void __user *data);
21
22 int syscall_user_dispatch_set_config(struct task_struct *task, unsigned long size,
23 void __user *data);
24
25 #else
26
set_syscall_user_dispatch(unsigned long mode,unsigned long offset,unsigned long len,char __user * selector)27 static inline int set_syscall_user_dispatch(unsigned long mode, unsigned long offset,
28 unsigned long len, char __user *selector)
29 {
30 return -EINVAL;
31 }
32
clear_syscall_work_syscall_user_dispatch(struct task_struct * tsk)33 static inline void clear_syscall_work_syscall_user_dispatch(struct task_struct *tsk)
34 {
35 }
36
syscall_user_dispatch_get_config(struct task_struct * task,unsigned long size,void __user * data)37 static inline int syscall_user_dispatch_get_config(struct task_struct *task,
38 unsigned long size, void __user *data)
39 {
40 return -EINVAL;
41 }
42
syscall_user_dispatch_set_config(struct task_struct * task,unsigned long size,void __user * data)43 static inline int syscall_user_dispatch_set_config(struct task_struct *task,
44 unsigned long size, void __user *data)
45 {
46 return -EINVAL;
47 }
48
49 #endif /* CONFIG_GENERIC_ENTRY */
50
51 #endif /* _SYSCALL_USER_DISPATCH_H */
52