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qat: avoid strict-aliasing break

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To avoid GCC warning about "dereferencing type-punned pointer will break
strict-aliasing rules" aad_len pointer is dereferenced instead of direct
dereferencing of uint32_t* cast of the middle of an array.

Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
This commit is contained in:
Arek Kusztal 2016-06-07 17:58:13 +01:00 committed by Thomas Monjalon
parent 577ac94c12
commit acc32dc9c0
1 changed files with 4 additions and 3 deletions
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7
drivers/crypto/qat/qat_adf/qat_algs_build_desc.c
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@ -616,10 +616,11 @@ int qat_alg_aead_session_create_content_desc_auth(struct qat_session *cdesc,
* Write (the length of AAD) into bytes 16-19 of state2
* in big-endian format. This field is 8 bytes
*/
*(uint32_t *)&(hash->sha.state1[
uint32_t *aad_len = (uint32_t *)&hash->sha.state1[
ICP_QAT_HW_GALOIS_128_STATE1_SZ +
ICP_QAT_HW_GALOIS_H_SZ]) =
rte_bswap32(add_auth_data_length);
ICP_QAT_HW_GALOIS_H_SZ];
*aad_len = rte_bswap32(add_auth_data_length);
proto = ICP_QAT_FW_LA_GCM_PROTO;
} else if (cdesc->qat_hash_alg == ICP_QAT_HW_AUTH_ALGO_SNOW_3G_UIA2) {
proto = ICP_QAT_FW_LA_SNOW_3G_PROTO;