The patch titled
kernel: add bit rotation helpers for 16 and 8 bit
has been added to the -mm tree. Its filename is
kernel-add-bit-rotation-helpers-for-16-and-8-bit.patch
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------------------------------------------------------
Subject: kernel: add bit rotation helpers for 16 and 8 bit
From: Harvey Harrison <harvey.harrison@xxxxxxxxx>
Will replace open-coded variants elsewhere. Done in the same
style as the 32-bit versions.
Signed-off-by: Harvey Harrison <harvey.harrison@xxxxxxxxx>
Acked-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Cc: John W. Linville <linville@xxxxxxxxxxxxx>
Cc: Joe Perches <joe@xxxxxxxxxxx>
Cc: Jiri Benc <jbenc@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/bitops.h | 40 +++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff -puN include/linux/bitops.h~kernel-add-bit-rotation-helpers-for-16-and-8-bit include/linux/bitops.h
--- a/include/linux/bitops.h~kernel-add-bit-rotation-helpers-for-16-and-8-bit
+++ a/include/linux/bitops.h
@@ -65,6 +65,46 @@ static inline __u32 ror32(__u32 word, un
return (word >> shift) | (word << (32 - shift));
}
+/**
+ * rol16 - rotate a 16-bit value left
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u16 rol16(__u16 word, unsigned int shift)
+{
+ return (word << shift) | (word >> (16 - shift));
+}
+
+/**
+ * ror16 - rotate a 16-bit value right
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u16 ror16(__u16 word, unsigned int shift)
+{
+ return (word >> shift) | (word << (16 - shift));
+}
+
+/**
+ * rol8 - rotate an 8-bit value left
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u8 rol8(__u8 word, unsigned int shift)
+{
+ return (word << shift) | (word >> (8 - shift));
+}
+
+/**
+ * ror8 - rotate an 8-bit value right
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u8 ror8(__u8 word, unsigned int shift)
+{
+ return (word >> shift) | (word << (8 - shift));
+}
+
static inline unsigned fls_long(unsigned long l)
{
if (sizeof(l) == 4)
_
Patches currently in -mm which might be from harvey.harrison@xxxxxxxxx are
git-x86.patch
git-alsa-tiwai.patch
agp-fix-shadowed-variable-warning-in-amd-k7-agpc.patch
git-cifs.patch
cifs-remove-global_extern-macro.patch
powerpc-replace-remaining-__function__-occurences.patch
ppc-replace-remaining-__function__-occurences.patch
power-replace-remaining-__function__-occurrences.patch
radeon-fix-integer-as-null-pointer-warnings-in-radeon_memc.patch
git-dvb.patch
git-dlm.patch
git-ieee1394.patch
git-infiniband.patch
input-replace-remaining-__function__-occurrences.patch
git-jfs.patch
git-kvm.patch
pata_amd-fix-sparse-warning.patch
git-async-tx.patch
git-mips.patch
mips-replace-remaining-__function__-occurences.patch
jffs2-include-function-prototype-for-jffs2_ioctl.patch
jffs2-fix-sparse-warning-in-nodemgmtc.patch
jffs2-fix-sparse-warning-in-writec.patch
jffs2-fix-sparse-warnings-in-gcc.patch
mtd-replace-remaining-__function__-occurrences.patch
git-net.patch
blackfin-replace-remaining-__function__-occurences.patch
nfs-replace-remaining-__function__-occurrences.patch
git-nfsd.patch
parisc-replace-remaining-__function__-occurences.patch
drivers-parisc-replace-remaining-__function__-occurrences.patch
pcmcia-replace-remaining-__function__-occurrences.patch
git-selinux.patch
drivers-s390-replace-remaining-__function__-occurrences.patch
scsi-replace-remaining-__function__-occurrences.patch
fusion-replace-remaining-__function__-occurrences.patch
scsi-replace-__inline-with-inline.patch
scsi-chc-fix-shadowed-variable-warnings.patch
scsi-chc-fix-shadowed-variable-warnings-checkpatch-fixes.patch
block-replace-remaining-__function__-occurrences.patch
git-watchdog.patch
xfs-replace-remaining-__function__-occurrences.patch
xfs-replace-__inline-with-inline.patch
xtensa-replace-remaining-__function__-occurences.patch
remove-sparse-warning-for-mmzoneh.patch
remove-sparse-warning-for-mmzoneh-checkpatch-fixes.patch
smack-fix-integer-as-null-pointer-warning-in-smack_lsmc.patch
alpha-remove-remaining-__function__-occurences.patch
alpha-replace-__inline-with-inline.patch
m68k-replace-remaining-__function__-occurences.patch
uml-replace-remaining-__function__-occurences.patch
adfs-work-around-bogus-sparse-warning.patch
coda-add-static-to-functions-in-dirc.patch
befs-fix-sparse-warning-in-linuxvfsc.patch
autofs4-fix-sparse-warning-in-rootc.patch
firmware-replace-remaining-__function__-occurrences.patch
drivers-misc-replace-remaining-__function__-occurrences.patch
ncpfs-add-prototypes-to-ncp_fsh.patch
ncpfs-fix-sparse-warnings-in-ioctlc.patch
ncpfs-fix-sparse-warning-in-ncpsign_kernelc.patch
serial-remove-double-initializer.patch
char-make-functions-static-in-synclinkmpc.patch
spi-replace-remaining-__function__-occurrences.patch
capi-fix-sparse-warnings-using-integer-as-null-pointer.patch
avm-fix-sparse-warning-using-integer-as-null-pointer.patch
eicon-fix-sparse-integer-as-null-pointer-warnings.patch
isdn-replace-remaining-__function__-occurrences.patch
xen-make-blkif_getgeo-static.patch
ecryptfs-replace-remaining-__function__-occurrences.patch
rtc-replace-remaining-__function__-occurrences.patch
fbcon-replace-mono_col-macro-with-static-inline.patch
fbcon-replace-mono_col-macro-with-static-inline-fix.patch
video-replace-remaining-__function__-occurrences.patch
md-fix-integer-as-null-pointer-warnings-in-mdc.patch
md-replace-remaining-__function__-occurrences.patch
ext2-replace-remaining-__function__-occurrences.patch
jbd-sparse-warnings-in-revokec-journalc.patch
ext3-replace-remaining-__function__-occurrences.patch
jbd-replace-remaining-__function__-occurrences.patch
ufs-replace-remaining-__function__-occurrences.patch
ufs-replace-__inline-with-inline.patch
udf-fix-sparse-warning-in-nameic.patch
reiserfs-fix-sparse-warnings-in-fix_nodec.patch
reiserfs-fix-sparse-warnings-in-do_balanc.patch
reiserfs-fix-sparse-warning-in-nameic.patch
reiserfs-fix-sparse-warnings-in-lbalancec.patch
reiserfs-fix-sparse-warning-in-journalc.patch
reiserfs-fix-more-sparse-warnings-in-do_balanc.patch
reiserfs-replace-remaining-__function__-occurrences.patch
cgroup-fix-sparse-warning-of-shadow-symbol-in-cgroupc.patch
ext4-replace-remaining-__function__-occurrences.patch
jdb2-replace-remaining-__function__-occurrences.patch
char-fix-sparse-shadowed-variable-warnings-in-espc.patch
char-espc-fix-possible-double-unlock.patch
char-rocketc-fix-sparse-variable-shadowing-and-int-as-null-pointer.patch
cycladesc-fix-sparse-shadowed-variable-warnings.patch
epcac-static-functions-and-integer-as-null-pointer-fixes.patch
epcac-static-functions-and-integer-as-null-pointer-fixes-checkpatch-fixes.patch
add-macros-similar-to-min-max-min_t-max_t.patch
add-macros-similar-to-min-max-min_t-max_t-doc.patch
ide-eliminate-fit-macro.patch
ata-remove-fit-macro.patch
b43-replace-limit_value-macro-with-clamp_val.patch
b43legacy-replace-limit_value-macro-with-clamp_val.patch
fuse-use-clamp-rather-than-nested-min-max.patch
ide-tape-use-clamp_t-rather-than-nested-min_t-max_t.patch
input-ff-memlessc-use-clamp_val-macro.patch
dccp-ccid2c-ccid3c-use-clamp-clamp_t.patch
drivers-replace-remaining-__function__-occurrences.patch
kernel-add-bit-rotation-helpers-for-16-and-8-bit.patch
mac80211-tkipcc-michaelc-use-kernel-bit-rotation-helpers.patch
mac80211-tkipc-remove-unused-function-make-function-static.patch
mac80211-tkipc-remove-opencoded-swab16-in-tkip_s.patch
mac80211-tkipc-eliminate-the-hi16-lo16-functions.patch
mac80211-tkipc-remove-mk16-hi8-lo8-helpers.patch
mm-remove-remaining-__function__-occurances.patch
block-remove-remaining-__function__-occurances.patch
kernel-replace-remaining-__function__-occurances.patch
lib-replace-remaining-__function__-occurances.patch
afs-replace-remaining-__function__-occurrences.patch
fs-replace-remaining-__function__-occurrences.patch
drivers-char-replace-remaining-__function__-occurrences.patch
serial-replace-remaining-__function__-occurrences.patch
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