crypto/dpaa2_sec: fix length retrieved from hardware

FD retrieved from SEC after crypto processing provides
an updated length of the buffer which need to be updated
in mbuf. The difference in length can be negative hence
changing diff to int32_t from uint32_t.

Fixes: 0a23d4b6f4c2 ("crypto/dpaa2_sec: support protocol offload IPsec")
Cc: stable@dpdk.org
Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>

diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
index add3b9e..b04890a 100644 (file)
--- a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
+++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
@@ -1511,7 +1511,7 @@ sec_simple_fd_to_mbuf(const struct qbman_fd *fd)
 {
        struct rte_crypto_op *op;
        uint16_t len = DPAA2_GET_FD_LEN(fd);
-       uint16_t diff = 0;
+       int16_t diff = 0;
        dpaa2_sec_session *sess_priv __rte_unused;
 
        struct rte_mbuf *mbuf = DPAA2_INLINE_MBUF_FROM_BUF(