diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-10-18 16:23:35 (GMT) |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-10-20 14:10:50 (GMT) |
| commit | 4c2b130c8ae79af734e5e57f3662e25ef4d20e8d (patch) | |
| tree | 2d58744ec66599b088df01a0c4e17756f7e0c392 /drivers/crypto/marvell/hash.c | |
| parent | 80754539ec936b0afe8a3c406b7d67612977cc71 (diff) | |
| download | linux-4c2b130c8ae79af734e5e57f3662e25ef4d20e8d.tar.xz | |
crypto: marvell/cesa - keep creq->state in CPU endian format at all times
Currently, we read/write the state in CPU endian, but on the final
request, we convert its endian according to the requested algorithm.
(md5 is little endian, SHA are big endian.)
Always keep creq->state in CPU native endian format, and perform the
necessary conversion when copying the hash to the result.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/marvell/hash.c')
| -rw-r--r-- | drivers/crypto/marvell/hash.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c index 40241fd..7894126 100644 --- a/drivers/crypto/marvell/hash.c +++ b/drivers/crypto/marvell/hash.c @@ -347,18 +347,21 @@ static int mv_cesa_ahash_process(struct crypto_async_request *req, u32 status) ahashreq->nbytes - creq->cache_ptr); if (creq->last_req) { - for (i = 0; i < digsize / 4; i++) { - /* - * Hardware provides MD5 digest in a different - * endianness than SHA-1 and SHA-256 ones. - */ - if (digsize == MD5_DIGEST_SIZE) - creq->state[i] = cpu_to_le32(creq->state[i]); - else - creq->state[i] = cpu_to_be32(creq->state[i]); - } + /* + * Hardware's MD5 digest is in little endian format, but + * SHA in big endian format + */ + if (digsize == MD5_DIGEST_SIZE) { + __le32 *result = (void *)ahashreq->result; + + for (i = 0; i < digsize / 4; i++) + result[i] = cpu_to_le32(creq->state[i]); + } else { + __be32 *result = (void *)ahashreq->result; - memcpy(ahashreq->result, creq->state, digsize); + for (i = 0; i < digsize / 4; i++) + result[i] = cpu_to_be32(creq->state[i]); + } } return ret; |