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ba914908 | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
292f29b4 JDB |
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 | ||
28 | typedef struct { unsigned char _[8]; } __ATM_API_ALIGN atm_kptr_t; | |
29 | ||
30 | #endif |