[mirror_ubuntu-jammy-kernel.git] / include / linux / syscall_user_dispatch.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2020 Collabora Ltd.
 */
#ifndef _SYSCALL_USER_DISPATCH_H
#define _SYSCALL_USER_DISPATCH_H

#include <linux/thread_info.h>

#ifdef CONFIG_GENERIC_ENTRY

struct syscall_user_dispatch {
	char __user	*selector;
	unsigned long	offset;
	unsigned long	len;
	bool		on_dispatch;
};

int set_syscall_user_dispatch(unsigned long mode, unsigned long offset,
			      unsigned long len, char __user *selector);

#define clear_syscall_work_syscall_user_dispatch(tsk) \
	clear_task_syscall_work(tsk, SYSCALL_USER_DISPATCH)

#else
struct syscall_user_dispatch {};

static inline int set_syscall_user_dispatch(unsigned long mode, unsigned long offset,
					    unsigned long len, char __user *selector)
{
	return -EINVAL;
}

static inline void clear_syscall_work_syscall_user_dispatch(struct task_struct *tsk)
{
}

#endif /* CONFIG_GENERIC_ENTRY */

#endif /* _SYSCALL_USER_DISPATCH_H */
Commit	Line	Data
1446e1df GKB	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
	12	struct syscall_user_dispatch {
	13	char __user *selector;
	14	unsigned long offset;
	15	unsigned long len;
	16	bool on_dispatch;
	17	};
	18
	19	int 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
	26	struct syscall_user_dispatch {};
	27
	28	static 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
	34	static 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 */