diff options
Diffstat (limited to 'include/asm-x86_64/unaligned.h')
-rw-r--r-- | include/asm-x86_64/unaligned.h | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/include/asm-x86_64/unaligned.h b/include/asm-x86_64/unaligned.h deleted file mode 100644 index d4bf78dc6f39..000000000000 --- a/include/asm-x86_64/unaligned.h +++ /dev/null | |||
@@ -1,37 +0,0 @@ | |||
1 | #ifndef __X8664_UNALIGNED_H | ||
2 | #define __X8664_UNALIGNED_H | ||
3 | |||
4 | /* | ||
5 | * The x86-64 can do unaligned accesses itself. | ||
6 | * | ||
7 | * The strange macros are there to make sure these can't | ||
8 | * be misused in a way that makes them not work on other | ||
9 | * architectures where unaligned accesses aren't as simple. | ||
10 | */ | ||
11 | |||
12 | /** | ||
13 | * get_unaligned - get value from possibly mis-aligned location | ||
14 | * @ptr: pointer to value | ||
15 | * | ||
16 | * This macro should be used for accessing values larger in size than | ||
17 | * single bytes at locations that are expected to be improperly aligned, | ||
18 | * e.g. retrieving a u16 value from a location not u16-aligned. | ||
19 | * | ||
20 | * Note that unaligned accesses can be very expensive on some architectures. | ||
21 | */ | ||
22 | #define get_unaligned(ptr) (*(ptr)) | ||
23 | |||
24 | /** | ||
25 | * put_unaligned - put value to a possibly mis-aligned location | ||
26 | * @val: value to place | ||
27 | * @ptr: pointer to location | ||
28 | * | ||
29 | * This macro should be used for placing values larger in size than | ||
30 | * single bytes at locations that are expected to be improperly aligned, | ||
31 | * e.g. writing a u16 value to a location not u16-aligned. | ||
32 | * | ||
33 | * Note that unaligned accesses can be very expensive on some architectures. | ||
34 | */ | ||
35 | #define put_unaligned(val, ptr) ((void)( *(ptr) = (val) )) | ||
36 | |||
37 | #endif | ||