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sparc64: Fix IV handling bug in des_sparc64_cbc_decrypt 

The IV wasn't being propagated properly past the first loop
iteration.

This bug lived only because the crypto layer tests for
cbc(des) do not have any cases that go more than one loop.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2012-09-17 19:57:30 -07:00
parent 979e93ca24
commit 65d5fcf5c2
1 changed files with 1 additions and 0 deletions
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1
arch/sparc/crypto/des_asm.S
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@ -168,6 +168,7 @@ ENTRY(des_sparc64_cbc_decrypt)
DES_ROUND(28, 30, 32, 32) DES_ROUND(28, 30, 32, 32)
DES_IIP(32, 32) DES_IIP(32, 32)
fxor %f32, %f34, %f32 fxor %f32, %f34, %f32
fsrc2 %f36, %f34
std %f32, [%o1 + 0x00] std %f32, [%o1 + 0x00]
add %o0, 0x08, %o0 add %o0, 0x08, %o0
subcc %o2, 0x08, %o2 subcc %o2, 0x08, %o2