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1 | #ifndef __ASM_GENERIC_UACCESS_UNALIGNED_H |
2 | #define __ASM_GENERIC_UACCESS_UNALIGNED_H |
3 | |
4 | /* |
5 | * This macro should be used instead of __get_user() when accessing |
6 | * values at locations that are not known to be aligned. |
7 | */ |
8 | #define __get_user_unaligned(x, ptr) \ |
9 | ({ \ |
10 | __typeof__ (*(ptr)) __x; \ |
11 | __copy_from_user(&__x, (ptr), sizeof(*(ptr))) ? -EFAULT : 0; \ |
12 | (x) = __x; \ |
13 | }) |
14 | |
15 | |
16 | /* |
17 | * This macro should be used instead of __put_user() when accessing |
18 | * values at locations that are not known to be aligned. |
19 | */ |
20 | #define __put_user_unaligned(x, ptr) \ |
21 | ({ \ |
22 | __typeof__ (*(ptr)) __x = (x); \ |
23 | __copy_to_user((ptr), &__x, sizeof(*(ptr))) ? -EFAULT : 0; \ |
24 | }) |
25 | |
26 | #endif /* __ASM_GENERIC_UACCESS_UNALIGNED_H */ |
27 |
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od-2011-09-04
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v2.6.34-rc5
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