[PATCH v5 06/29] baseband/acc100: check for unlikely operation vals

[Hernan Vargas]

Add unlikely checks for NULL operation values.

Fixes: f404dfe35cc ("baseband/acc100: support 4G processing")
Cc: sta...@dpdk.org

Signed-off-by: Hernan Vargas <hernan.var...@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coque...@redhat.com>
---
 drivers/baseband/acc/rte_acc100_pmd.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/baseband/acc/rte_acc100_pmd.c 
b/drivers/baseband/acc/rte_acc100_pmd.c
index eba70654e8..e8ec70d954 100644
--- a/drivers/baseband/acc/rte_acc100_pmd.c
+++ b/drivers/baseband/acc/rte_acc100_pmd.c
@@ -2180,6 +2180,10 @@ enqueue_enc_one_op_tb(struct acc_queue *q, struct 
rte_bbdev_enc_op *op,
        r = op->turbo_enc.tb_params.r;
 
        while (mbuf_total_left > 0 && r < c) {
+               if (unlikely(input == NULL)) {
+                       rte_bbdev_log(ERR, "Not enough input segment");
+                       return -EINVAL;
+               }
                seg_total_left = rte_pktmbuf_data_len(input) - in_offset;
                /* Set up DMA descriptor */
                desc = acc_desc(q, total_enqueued_cbs);
@@ -3097,6 +3101,8 @@ acc100_enqueue_ldpc_dec_tb(struct rte_bbdev_queue_data 
*q_data,
                        break;
                enqueued_cbs += ret;
        }
+       if (unlikely(enqueued_cbs == 0))
+               return 0; /* Nothing to enqueue */
 
        acc_dma_enqueue(q, enqueued_cbs, &q_data->queue_stats);
 
@@ -3625,6 +3631,8 @@ acc100_dequeue_dec(struct rte_bbdev_queue_data *q_data,
 
        for (i = 0; i < dequeue_num; ++i) {
                op = acc_op_tail(q, dequeued_cbs);
+               if (unlikely(op == NULL))
+                       break;
                if (op->turbo_dec.code_block_mode == RTE_BBDEV_TRANSPORT_BLOCK)
                        ret = dequeue_dec_one_op_tb(q, &ops[i], dequeued_cbs,
                                        &aq_dequeued);
@@ -3670,6 +3678,8 @@ acc100_dequeue_ldpc_dec(struct rte_bbdev_queue_data 
*q_data,
        for (i = 0; i < dequeue_num; ++i) {
                op = (q->ring_addr + ((q->sw_ring_tail + dequeued_cbs)
                        & q->sw_ring_wrap_mask))->req.op_addr;
+               if (unlikely(op == NULL))
+                       break;
                if (op->ldpc_dec.code_block_mode == RTE_BBDEV_TRANSPORT_BLOCK)
                        ret = dequeue_dec_one_op_tb(q, &ops[i], dequeued_cbs,
                                        &aq_dequeued);
-- 
2.37.1