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crypto: caam - set DK (Decrypt Key) bit only for AES accelerator

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AES currently shares descriptor creation functions with DES and 3DES.
DK bit is set in all cases, however it is valid only for
the AES accelerator.

Signed-off-by: Horia Geanta <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Horia Geanta 2014-07-11 15:46:58 +03:00 • committed by Herbert Xu
commit a60384dfff
1 changed files with 7 additions and 0 deletions
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7
drivers/crypto/caam/caamalg.c
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@ -97,6 +97,13 @@ static inline void append_dec_op1(u32 *desc, u32 type)
{
u32 *jump_cmd, *uncond_jump_cmd;
/* DK bit is valid only for AES */
if ((type & OP_ALG_ALGSEL_MASK) != OP_ALG_ALGSEL_AES) {
append_operation(desc, type | OP_ALG_AS_INITFINAL |
OP_ALG_DECRYPT);
return;
}
jump_cmd = append_jump(desc, JUMP_TEST_ALL | JUMP_COND_SHRD);
append_operation(desc, type | OP_ALG_AS_INITFINAL |
OP_ALG_DECRYPT);