lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

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

Browse Source 
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>
This commit is contained in:
Horia Geanta
2014-07-11 15:46:58 +03:00
committed by Herbert Xu
parent de0e35ec2b
commit a60384dfff
1 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/crypto/caam/caamalg.c
View File

@@ -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);