android_kernel_google_msm/include
Alexander Duyck ae3668ffeb jhash: Update jhash_[321]words functions to use correct initval
commit 2e7056c433216f406b90a003aa0ba42e19d3bdcf upstream.

Looking over the implementation for jhash2 and comparing it to jhash_3words
I realized that the two hashes were in fact very different.  Doing a bit of
digging led me to "The new jhash implementation" in which lookup2 was
supposed to have been replaced with lookup3.

In reviewing the patch I noticed that jhash2 had originally initialized a
and b to JHASH_GOLDENRATIO and c to initval, but after the patch a, b, and
c were initialized to initval + (length << 2) + JHASH_INITVAL.  However the
changes in jhash_3words simply replaced the initialization of a and b with
JHASH_INITVAL.

This change corrects what I believe was an oversight so that a, b, and c in
jhash_3words all have the same value added consisting of initval + (length
<< 2) + JHASH_INITVAL so that jhash2 and jhash_3words will now produce the
same hash result given the same inputs.

Fixes: 60d509c823 ("The new jhash implementation")
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Zefan Li <lizefan@huawei.com>
2015-09-18 09:20:27 +08:00
..
acpi
asm-generic
crypto
drm
keys
linux jhash: Update jhash_[321]words functions to use correct initval 2015-09-18 09:20:27 +08:00
math-emu
media
misc
mtd
net net: sctp: fix skb_over_panic when receiving malformed ASCONF chunks 2015-04-14 17:33:57 +08:00
pcmcia
rdma
rxrpc
scsi usb-storage/SCSI: Add broken_fua blacklist flag 2015-04-14 17:33:56 +08:00
sound ALSA: ak411x: Fix stall in work callback 2015-04-14 17:33:59 +08:00
target
trace
video
xen
Kbuild