On 12/14/2017 03:33 PM, Olivier Matz wrote:
From: Didier Pallard <[email protected]>
The rx_queues and tx_queues fields of the data structure points to a struct
virtnet_rx or virtnet_tx. Casting it to a virtqueue is an error.
It does not trigger any bug because pointer is not dereferenced inside the
function, but it can become a bug if this code is copy/pasted and vq is
dereferenced.
Fixes: 01ad44fd374f ("net/virtio: split Rx/Tx queue")
Cc: [email protected]
Signed-off-by: Didier Pallard <[email protected]>
Signed-off-by: Olivier Matz <[email protected]>
---
drivers/net/virtio/virtio_ethdev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/virtio/virtio_ethdev.c
b/drivers/net/virtio/virtio_ethdev.c
index c0ba83b06..b398f9960 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -893,7 +893,7 @@ static int virtio_dev_xstats_get_names(struct rte_eth_dev
*dev,
/* Note: limit checked in rte_eth_xstats_names() */
for (i = 0; i < dev->data->nb_rx_queues; i++) {
- struct virtqueue *rxvq = dev->data->rx_queues[i];
+ struct virtnet_rx *rxvq = dev->data->rx_queues[i];
if (rxvq == NULL)
continue;
for (t = 0; t < VIRTIO_NB_RXQ_XSTATS; t++) {
@@ -906,7 +906,7 @@ static int virtio_dev_xstats_get_names(struct rte_eth_dev
*dev,
}
for (i = 0; i < dev->data->nb_tx_queues; i++) {
- struct virtqueue *txvq = dev->data->tx_queues[i];
+ struct virtnet_tx *txvq = dev->data->tx_queues[i];
if (txvq == NULL)
continue;
for (t = 0; t < VIRTIO_NB_TXQ_XSTATS; t++) {
Reviewed-by: Maxime Coquelin <[email protected]>
Thanks,
Maxime
