[dpdk-dev] [PATCH] net/ixgbe: fix segfault in configuring VF VLAN strip

[Wei Dai <wei.dai@intel.com>]

This patch fixes a segment fault in ixgbevf_vlan_offload_set( )
when a Rx queue with index < max_rx_queues is not setup.
For such queue, rxq = dev->data->rx_queues[i] is null pointer.

Fixes: 860a94d3c692 ("net/ixgbe: support VLAN strip per queue offloading in VF")
Cc: stable@dpdk.org

Signed-off-by: Wei Dai <wei.dai@intel.com>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index a5e2fc0..33ee52e 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -5184,15 +5184,13 @@ ixgbevf_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
 static int
 ixgbevf_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
-	struct ixgbe_hw *hw =
-		IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct ixgbe_rx_queue *rxq;
 	uint16_t i;
 	int on = 0;
 
 	/* VF function only support hw strip feature, others are not support */
 	if (mask & ETH_VLAN_STRIP_MASK) {
-		for (i = 0; i < hw->mac.max_rx_queues; i++) {
+		for (i = 0; i < dev->data->nb_rx_queues; i++) {
 			rxq = dev->data->rx_queues[i];
 			on = !!(rxq->offloads &	DEV_RX_OFFLOAD_VLAN_STRIP);
 			ixgbevf_vlan_strip_queue_set(dev, i, on);
-- 
2.7.5