162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright (C) 2020 Collabora Ltd. 462306a36Sopenharmony_ci */ 562306a36Sopenharmony_ci#ifndef _SYSCALL_USER_DISPATCH_H 662306a36Sopenharmony_ci#define _SYSCALL_USER_DISPATCH_H 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#include <linux/thread_info.h> 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci#ifdef CONFIG_GENERIC_ENTRY 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_cistruct syscall_user_dispatch { 1362306a36Sopenharmony_ci char __user *selector; 1462306a36Sopenharmony_ci unsigned long offset; 1562306a36Sopenharmony_ci unsigned long len; 1662306a36Sopenharmony_ci bool on_dispatch; 1762306a36Sopenharmony_ci}; 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ciint set_syscall_user_dispatch(unsigned long mode, unsigned long offset, 2062306a36Sopenharmony_ci unsigned long len, char __user *selector); 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci#define clear_syscall_work_syscall_user_dispatch(tsk) \ 2362306a36Sopenharmony_ci clear_task_syscall_work(tsk, SYSCALL_USER_DISPATCH) 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ciint syscall_user_dispatch_get_config(struct task_struct *task, unsigned long size, 2662306a36Sopenharmony_ci void __user *data); 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ciint syscall_user_dispatch_set_config(struct task_struct *task, unsigned long size, 2962306a36Sopenharmony_ci void __user *data); 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ci#else 3262306a36Sopenharmony_cistruct syscall_user_dispatch {}; 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_cistatic inline int set_syscall_user_dispatch(unsigned long mode, unsigned long offset, 3562306a36Sopenharmony_ci unsigned long len, char __user *selector) 3662306a36Sopenharmony_ci{ 3762306a36Sopenharmony_ci return -EINVAL; 3862306a36Sopenharmony_ci} 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_cistatic inline void clear_syscall_work_syscall_user_dispatch(struct task_struct *tsk) 4162306a36Sopenharmony_ci{ 4262306a36Sopenharmony_ci} 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_cistatic inline int syscall_user_dispatch_get_config(struct task_struct *task, 4562306a36Sopenharmony_ci unsigned long size, void __user *data) 4662306a36Sopenharmony_ci{ 4762306a36Sopenharmony_ci return -EINVAL; 4862306a36Sopenharmony_ci} 4962306a36Sopenharmony_ci 5062306a36Sopenharmony_cistatic inline int syscall_user_dispatch_set_config(struct task_struct *task, 5162306a36Sopenharmony_ci unsigned long size, void __user *data) 5262306a36Sopenharmony_ci{ 5362306a36Sopenharmony_ci return -EINVAL; 5462306a36Sopenharmony_ci} 5562306a36Sopenharmony_ci 5662306a36Sopenharmony_ci#endif /* CONFIG_GENERIC_ENTRY */ 5762306a36Sopenharmony_ci 5862306a36Sopenharmony_ci#endif /* _SYSCALL_USER_DISPATCH_H */ 59