diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-generic/uaccess.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-generic/uaccess.h')
-rw-r--r-- | include/asm-generic/uaccess.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h new file mode 100644 index 000000000000..549cb3a1640a --- /dev/null +++ b/include/asm-generic/uaccess.h @@ -0,0 +1,26 @@ +#ifndef _ASM_GENERIC_UACCESS_H_ +#define _ASM_GENERIC_UACCESS_H_ + +/* + * This macro should be used instead of __get_user() when accessing + * values at locations that are not known to be aligned. + */ +#define __get_user_unaligned(x, ptr) \ +({ \ + __typeof__ (*(ptr)) __x; \ + __copy_from_user(&__x, (ptr), sizeof(*(ptr))) ? -EFAULT : 0; \ + (x) = __x; \ +}) + + +/* + * This macro should be used instead of __put_user() when accessing + * values at locations that are not known to be aligned. + */ +#define __put_user_unaligned(x, ptr) \ +({ \ + __typeof__ (*(ptr)) __x = (x); \ + __copy_to_user((ptr), &__x, sizeof(*(ptr))) ? -EFAULT : 0; \ +}) + +#endif /* _ASM_GENERIC_UACCESS_H */ |