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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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2 | #ifndef __NVIF_UNPACK_H__ |
3 | #define __NVIF_UNPACK_H__ | |
4 | ||
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5 | #define nvif_unvers(r,d,s,m) ({ \ |
6 | void **_data = (d); __u32 *_size = (s); int _ret = (r); \ | |
7 | if (_ret == -ENOSYS && *_size == sizeof(m)) { \ | |
8 | *_data = NULL; \ | |
9 | *_size = _ret = 0; \ | |
10 | } \ | |
11 | _ret; \ | |
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12 | }) |
13 | ||
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14 | #define nvif_unpack(r,d,s,m,vl,vh,x) ({ \ |
15 | void **_data = (d); __u32 *_size = (s); \ | |
16 | int _ret = (r), _vl = (vl), _vh = (vh); \ | |
17 | if (_ret == -ENOSYS && *_size >= sizeof(m) && \ | |
18 | (m).version >= _vl && (m).version <= _vh) { \ | |
19 | *_data = (__u8 *)*_data + sizeof(m); \ | |
20 | *_size = *_size - sizeof(m); \ | |
21 | if (_ret = 0, !(x)) { \ | |
22 | _ret = *_size ? -E2BIG : 0; \ | |
23 | *_data = NULL; \ | |
24 | *_size = 0; \ | |
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25 | } \ |
26 | } \ | |
f01c4e68 | 27 | _ret; \ |
79ca2770 | 28 | }) |
79ca2770 | 29 | #endif |