[dpdk-dev] [PATCH v2] net/virtio: fix check scatter on all Rx queues

[zhihongx . peng]

From: Zhihong Peng <zhihongx.p...@intel.com>

This patch fixes the wrong way to obtain virtqueue.
The end of virtqueue cannot be judged based on whether
the array is NULL.

Fixes: 4e8169eb0d2d (net/virtio: fix Rx scatter offload)
Cc: sta...@dpdk.org

Signed-off-by: Zhihong Peng <zhihongx.p...@intel.com>
---
 drivers/net/virtio/virtio_ethdev.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/virtio/virtio_ethdev.c 
b/drivers/net/virtio/virtio_ethdev.c
index b60eeb24ab..213110cff4 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -888,8 +888,11 @@ virtio_check_scatter_on_all_rx_queues(struct rte_eth_dev 
*dev,
        if (hw->vqs == NULL)
                return true;
 
-       for (qidx = 0; (vq = hw->vqs[2 * qidx + VTNET_SQ_RQ_QUEUE_IDX]) != NULL;
-            qidx++) {
+       for (qidx = 0; qidx < hw->max_queue_pairs; qidx++) {
+               vq = hw->vqs[2 * qidx + VTNET_SQ_RQ_QUEUE_IDX];
+               if (vq == NULL)
+                       continue;
+
                rxvq = &vq->rxq;
                if (rxvq->mpool == NULL)
                        continue;
-- 
2.25.1