diff options
author | Dan Williams <dan.j.williams@intel.com> | 2009-09-08 20:55:21 -0400 |
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committer | Dan Williams <dan.j.williams@intel.com> | 2009-09-08 20:55:21 -0400 |
commit | bbb20089a3275a19e475dbc21320c3742e3ca423 (patch) | |
tree | 216fdc1cbef450ca688135c5b8969169482d9a48 /include/asm-generic/uaccess-unaligned.h | |
parent | 3e48e656903e9fd8bc805c6a2c4264d7808d315b (diff) | |
parent | 657a77fa7284d8ae28dfa48f1dc5d919bf5b2843 (diff) |
Merge branch 'dmaengine' into async-tx-next
Conflicts:
crypto/async_tx/async_xor.c
drivers/dma/ioat/dma_v2.h
drivers/dma/ioat/pci.c
drivers/md/raid5.c
Diffstat (limited to 'include/asm-generic/uaccess-unaligned.h')
-rw-r--r-- | include/asm-generic/uaccess-unaligned.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/asm-generic/uaccess-unaligned.h b/include/asm-generic/uaccess-unaligned.h new file mode 100644 index 000000000000..67deb898f0c5 --- /dev/null +++ b/include/asm-generic/uaccess-unaligned.h | |||
@@ -0,0 +1,26 @@ | |||
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 */ | ||