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v6.2
 1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 2/*
 3 *	Berkeley style UIO structures	-	Alan Cox 1994.
 4 *
 5 *		This program is free software; you can redistribute it and/or
 6 *		modify it under the terms of the GNU General Public License
 7 *		as published by the Free Software Foundation; either version
 8 *		2 of the License, or (at your option) any later version.
 9 */
10#ifndef _UAPI__LINUX_UIO_H
11#define _UAPI__LINUX_UIO_H
12
13#include <linux/compiler.h>
14#include <linux/types.h>
15
16
17struct iovec
18{
19	void __user *iov_base;	/* BSD uses caddr_t (1003.1g requires void *) */
20	__kernel_size_t iov_len; /* Must be size_t (1003.1g) */
21};
22
23/*
24 *	UIO_MAXIOV shall be at least 16 1003.1g (5.4.1.1)
25 */
26 
27#define UIO_FASTIOV	8
28#define UIO_MAXIOV	1024
29
30
31#endif /* _UAPI__LINUX_UIO_H */
v4.6
 
 1/*
 2 *	Berkeley style UIO structures	-	Alan Cox 1994.
 3 *
 4 *		This program is free software; you can redistribute it and/or
 5 *		modify it under the terms of the GNU General Public License
 6 *		as published by the Free Software Foundation; either version
 7 *		2 of the License, or (at your option) any later version.
 8 */
 9#ifndef _UAPI__LINUX_UIO_H
10#define _UAPI__LINUX_UIO_H
11
12#include <linux/compiler.h>
13#include <linux/types.h>
14
15
16struct iovec
17{
18	void __user *iov_base;	/* BSD uses caddr_t (1003.1g requires void *) */
19	__kernel_size_t iov_len; /* Must be size_t (1003.1g) */
20};
21
22/*
23 *	UIO_MAXIOV shall be at least 16 1003.1g (5.4.1.1)
24 */
25 
26#define UIO_FASTIOV	8
27#define UIO_MAXIOV	1024
28
29
30#endif /* _UAPI__LINUX_UIO_H */