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/* 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
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