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csrypto: ccp - Expand RSA support for a v5 ccp

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A version 5 CCP can handle an RSA modulus up to 16k bits.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gary R Hook
2017-07-17 15:16:42 -05:00
committed by Herbert Xu
parent ceeec0afd6
commit e28c190db6
7 changed files with 12 additions and 2 deletions
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3
drivers/crypto/ccp/ccp-ops.c
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@@ -1736,7 +1736,8 @@ static int ccp_run_rsa_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
unsigned int sb_count, i_len, o_len;
int ret;
if (rsa->key_size > CCP_RSA_MAX_WIDTH)
/* Check against the maximum allowable size, in bits */
if (rsa->key_size > cmd_q->ccp->vdata->rsamax)
return -EINVAL;
if (!rsa->exp || !rsa->mod || !rsa->src || !rsa->dst)