/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

/* atmapi.h - ATM API user space/kernel compatibility */

/* Written 1999,2000 by Werner Almesberger, EPFL ICA */

#ifndef _LINUX_ATMAPI_H

#define _LINUX_ATMAPI_H

#if defined(__sparc__) || defined(__ia64__)

/* such alignment is not required on 32 bit sparcs, but we can't

   figure that we are on a sparc64 while compiling user-space programs. */

#define __ATM_API_ALIGN	__attribute__((aligned(8)))

#else

#define __ATM_API_ALIGN

#endif

/*

 * Opaque type for kernel pointers. Note that _ is never accessed. We need

 * the struct in order hide the array, so that we can make simple assignments

 * instead of being forced to use memcpy. It also improves error reporting for

 * code that still assumes that we're passing unsigned longs.

 *

 * Convention: NULL pointers are passed as a field of all zeroes.

 */

typedef struct { unsigned char _[8]; } __ATM_API_ALIGN atm_kptr_t;

#endif