Re: [PATCH 12/16] crypto/dpaa2_sec: fix bitmask truncation

[Hemant Agrawal <hemant.agrawal@oss.nxp.com>]

On 15-11-2024 11:35, Stephen Hemminger wrote:
> The dqrr_held mask is 64 bit but updates were getting truncated
> because 1 is of type int (32 bit) and the result shift of int is of
> type int (32 bit); therefore any value >= 32 would get truncated.
>
> Link: https://pvs-studio.com/en/blog/posts/cpp/1183/
>
> Fixes: a77db24643b7 ("crypto/dpaa2_sec: support atomic queues")
> Cc: ashish.jain@nxp.com
> Cc: stable@dpdk.org
>
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
>   drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
> index ec6577f64c..7ad8fd47dd 100644
> --- a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
> +++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
> @@ -1491,8 +1491,8 @@ dpaa2_sec_enqueue_burst(void *qp, struct rte_crypto_op **ops,
>   			if (*dpaa2_seqn((*ops)->sym->m_src)) {
>   				if (*dpaa2_seqn((*ops)->sym->m_src) & QBMAN_ENQUEUE_FLAG_DCA) {
>   					DPAA2_PER_LCORE_DQRR_SIZE--;
> -					DPAA2_PER_LCORE_DQRR_HELD &= ~(1 <<
> -					*dpaa2_seqn((*ops)->sym->m_src) &
> +					DPAA2_PER_LCORE_DQRR_HELD &= ~(UINT64_C(1) <<
> +						*dpaa2_seqn((*ops)->sym->m_src) &
>   					QBMAN_EQCR_DCA_IDXMASK);
>   				}
>   				flags[loop] = *dpaa2_seqn((*ops)->sym->m_src);
> @@ -1772,7 +1772,7 @@ dpaa2_sec_set_enqueue_descriptor(struct dpaa2_queue *dpaa2_q,
>   		dq_idx = *dpaa2_seqn(m) - 1;
>   		qbman_eq_desc_set_dca(eqdesc, 1, dq_idx, 0);
>   		DPAA2_PER_LCORE_DQRR_SIZE--;
> -		DPAA2_PER_LCORE_DQRR_HELD &= ~(1 << dq_idx);
> +		DPAA2_PER_LCORE_DQRR_HELD &= ~(UINT64_C(1) << dq_idx);
>   	}
>   	*dpaa2_seqn(m) = DPAA2_INVALID_MBUF_SEQN;
>   }
> @@ -4055,7 +4055,7 @@ dpaa2_sec_process_atomic_event(struct qbman_swp *swp __rte_unused,
>   	dqrr_index = qbman_get_dqrr_idx(dq);
>   	*dpaa2_seqn(crypto_op->sym->m_src) = QBMAN_ENQUEUE_FLAG_DCA | dqrr_index;
>   	DPAA2_PER_LCORE_DQRR_SIZE++;
> -	DPAA2_PER_LCORE_DQRR_HELD |= 1 << dqrr_index;
> +	DPAA2_PER_LCORE_DQRR_HELD |= UINT64_C(1) << dqrr_index;
>   	DPAA2_PER_LCORE_DQRR_MBUF(dqrr_index) = crypto_op->sym->m_src;
>   	ev->event_ptr = crypto_op;
>   }
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>