Greg Kroah-Hartman | 6f52b16 | 2017-11-01 15:08:43 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |