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

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 <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 694df4685920a8de671ad6a813031dfed02c8851..a80ea853701db2f430dee148da1a9a39734ef34c 100644 (file)
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -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);