summaryrefslogtreecommitdiffstats
path: root/include/linux/bitops.h
diff options
context:
space:
mode:
authorTakashi Iwai <tiwai@suse.de>2012-03-18 18:22:37 +0100
committerTakashi Iwai <tiwai@suse.de>2012-03-18 18:22:37 +0100
commitcb3f2adc03ab055b19c677a6283523861fafebdd (patch)
tree59cfb6800f0635a4aec16c8e0da619f27e51ee79 /include/linux/bitops.h
parent44c76a960a62fcc46cbcaa0a22a34e666a729329 (diff)
parent828006de1bddf83b6ecf03ec459c15f7c7c22db7 (diff)
downloadop-kernel-dev-cb3f2adc03ab055b19c677a6283523861fafebdd.zip
op-kernel-dev-cb3f2adc03ab055b19c677a6283523861fafebdd.tar.gz
Merge branch 'topic/asoc' into for-linus
Diffstat (limited to 'include/linux/bitops.h')
-rw-r--r--include/linux/bitops.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 3c1063a..94300fe 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -56,6 +56,26 @@ static inline unsigned long hweight_long(unsigned long w)
}
/**
+ * rol64 - rotate a 64-bit value left
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u64 rol64(__u64 word, unsigned int shift)
+{
+ return (word << shift) | (word >> (64 - shift));
+}
+
+/**
+ * ror64 - rotate a 64-bit value right
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u64 ror64(__u64 word, unsigned int shift)
+{
+ return (word >> shift) | (word << (64 - shift));
+}
+
+/**
* rol32 - rotate a 32-bit value left
* @word: value to rotate
* @shift: bits to roll
OpenPOWER on IntegriCloud