| /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
| /* |
| * Berkeley style UIO structures - Alan Cox 1994. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| #ifndef _UAPI__LINUX_UIO_H |
| #define _UAPI__LINUX_UIO_H |
| |
| #include <linux/compiler.h> |
| #include <linux/types.h> |
| |
| |
| struct iovec |
| { |
| void __user *iov_base; /* BSD uses caddr_t (1003.1g requires void *) */ |
| __kernel_size_t iov_len; /* Must be size_t (1003.1g) */ |
| }; |
| |
| /* |
| * UIO_MAXIOV shall be at least 16 1003.1g (5.4.1.1) |
| */ |
| |
| #define UIO_FASTIOV 8 |
| #define UIO_MAXIOV 1024 |
| |
| |
| #endif /* _UAPI__LINUX_UIO_H */ |