1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 2/* atmapi.h - ATM API user space/kernel compatibility */
 3 
 4/* Written 1999,2000 by Werner Almesberger, EPFL ICA */
 5 
 6
 7#ifndef _LINUX_ATMAPI_H
 8#define _LINUX_ATMAPI_H
 9
10#if defined(__sparc__) || defined(__ia64__)
11/* such alignment is not required on 32 bit sparcs, but we can't
12   figure that we are on a sparc64 while compiling user-space programs. */
13#define __ATM_API_ALIGN	__attribute__((aligned(8)))
14#else
15#define __ATM_API_ALIGN
16#endif
17
18
19/*
20 * Opaque type for kernel pointers. Note that _ is never accessed. We need
21 * the struct in order hide the array, so that we can make simple assignments
22 * instead of being forced to use memcpy. It also improves error reporting for
23 * code that still assumes that we're passing unsigned longs.
24 *
25 * Convention: NULL pointers are passed as a field of all zeroes.
26 */
27 
28typedef struct { unsigned char _[8]; } __ATM_API_ALIGN atm_kptr_t;
29
30#endif