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aesni_mb: fix strict-aliasing compilation rule

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When compiling the AESNI_MB PMD with GCC 4.4.7 on Centos 6.7 a "dereferencing
pointer ‘obj_p’ does break strict-aliasing rules" warning occurs in the
get_session() function.

Fixes: 924e84f873 ("aesni_mb: add driver for multi buffer based crypto")

Signed-off-by: Declan Doherty <declan.doherty@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
This commit is contained in:
Declan Doherty 2016-02-15 17:06:07 +00:00 committed by Thomas Monjalon
parent a324c45a6f
commit 591f0e8bb0
1 changed files with 9 additions and 6 deletions
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15
drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
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@ -298,7 +298,7 @@ aesni_mb_set_session_parameters(const struct aesni_mb_ops *mb_ops,
static struct aesni_mb_session *
get_session(struct aesni_mb_qp *qp, struct rte_crypto_op *crypto_op)
{
struct aesni_mb_session *sess;
struct aesni_mb_session *sess = NULL;
if (crypto_op->type == RTE_CRYPTO_OP_WITH_SESSION) {
if (unlikely(crypto_op->session->type !=
@ -307,16 +307,19 @@ get_session(struct aesni_mb_qp *qp, struct rte_crypto_op *crypto_op)
sess = (struct aesni_mb_session *)crypto_op->session->_private;
} else {
struct rte_cryptodev_session *c_sess = NULL;
void *_sess = NULL;
if (rte_mempool_get(qp->sess_mp, (void **)&c_sess))
if (rte_mempool_get(qp->sess_mp, (void **)&_sess))
return NULL;
sess = (struct aesni_mb_session *)c_sess->_private;
sess = (struct aesni_mb_session *)
((struct rte_cryptodev_session *)_sess)->_private;
if (unlikely(aesni_mb_set_session_parameters(qp->ops,
sess, crypto_op->xform) != 0))
return NULL;
sess, crypto_op->xform) != 0)) {
rte_mempool_put(qp->sess_mp, _sess);
sess = NULL;
}
}
return sess;