[dpdk-dev] [PATCH v2] virtio: fix size of mac_addrs array in virtio ports

[David Marchand]

From: Ivan Boule <ivan.boule at 6wind.com>

Make the virtio PMD allocate the array of unicast MAC addresses with
the maximum of entries (VIRTIO_MAX_MAC_ADDRS) that it exports.

Signed-off-by: Ivan Boule <ivan.boule at 6wind.com>
Signed-off-by: David Marchand <david.marchand at 6wind.com>
---
Changes since v1:
* fix checkpatch warning (thanks Yuanhan)

 drivers/net/virtio/virtio_ethdev.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 12fcc23..636b182 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1163,6 +1163,7 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
 	struct virtio_net_config *config;
 	struct virtio_net_config local_config;
 	struct rte_pci_device *pci_dev;
+	const size_t mac_array_size = VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN;
 
 	RTE_BUILD_BUG_ON(RTE_PKTMBUF_HEADROOM < sizeof(struct virtio_net_hdr));
 
@@ -1175,11 +1176,11 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
 	}
 
 	/* Allocate memory for storing MAC addresses */
-	eth_dev->data->mac_addrs = rte_zmalloc("virtio", ETHER_ADDR_LEN, 0);
+	eth_dev->data->mac_addrs = rte_zmalloc("virtio", mac_array_size, 0);
 	if (eth_dev->data->mac_addrs == NULL) {
 		PMD_INIT_LOG(ERR,
 			"Failed to allocate %d bytes needed to store MAC addresses",
-			ETHER_ADDR_LEN);
+			mac_array_size);
 		return -ENOMEM;
 	}
 
-- 
1.9.1