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

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

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

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#ifndef _LINUX_ATMAPI_H

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#define _LINUX_ATMAPI_H

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

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

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

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

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#else

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#define __ATM_API_ALIGN

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#endif

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/*

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

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

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

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

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*

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

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*/

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

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#endif

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