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30 lines
952 B
30 lines
952 B
/* 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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