include/linux/syscall_user_dispatch.h

   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
  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
  33 static inline void clear_syscall_work_syscall_user_dispatch(struct task_struct *tsk)
  34 {
  35 }
  36
  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
  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 */