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author | Arnd Bergmann <arnd@arndb.de> | 2012-02-28 07:39:56 -0500 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-02-28 07:40:01 -0500 |
commit | 4d8cfec692e988b844dcaeaeb76b5780b7ef9d28 (patch) | |
tree | 67d43adab2afd18a74d08f347e3676ae1a64193f /include/linux/bitops.h | |
parent | a3a3c4664184f86ef964323d106c62158e2b3f25 (diff) | |
parent | 1d8c38c3d1b48eeb9cfaa42a8be13a1423569eb2 (diff) |
Merge branch 'cleanup-3.4' of git://github.com/hzhuang1/linux into next/cleanup
* 'cleanup-3.4' of git://github.com/hzhuang1/linux: (2 commits)
rtc: sa1100: remove verification code of alarm
rtc: sa1100: remove periodic code
(update to v3.3-rc5)
Diffstat (limited to 'include/linux/bitops.h')
-rw-r--r-- | include/linux/bitops.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h index 3c1063acb2ab..94300fe46cce 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h | |||
@@ -56,6 +56,26 @@ static inline unsigned long hweight_long(unsigned long w) | |||
56 | } | 56 | } |
57 | 57 | ||
58 | /** | 58 | /** |
59 | * rol64 - rotate a 64-bit value left | ||
60 | * @word: value to rotate | ||
61 | * @shift: bits to roll | ||
62 | */ | ||
63 | static inline __u64 rol64(__u64 word, unsigned int shift) | ||
64 | { | ||
65 | return (word << shift) | (word >> (64 - shift)); | ||
66 | } | ||
67 | |||
68 | /** | ||
69 | * ror64 - rotate a 64-bit value right | ||
70 | * @word: value to rotate | ||
71 | * @shift: bits to roll | ||
72 | */ | ||
73 | static inline __u64 ror64(__u64 word, unsigned int shift) | ||
74 | { | ||
75 | return (word >> shift) | (word << (64 - shift)); | ||
76 | } | ||
77 | |||
78 | /** | ||
59 | * rol32 - rotate a 32-bit value left | 79 | * rol32 - rotate a 32-bit value left |
60 | * @word: value to rotate | 80 | * @word: value to rotate |
61 | * @shift: bits to roll | 81 | * @shift: bits to roll |