[dpdk-dev] [PATCH v4] Fixes following error on gcc 4.4.7:

[Xie, Huawei]

On 12/9/2015 8:20 PM, De Lara Guarch, Pablo wrote:
> make: Entering directory `/tmp/dpdk-tmp/examples/vhost'
>   CC main.o
[...]
> -     rte_ring_sc_dequeue(vpool->ring, (void **)&mbuf);
> +     rte_ring_sc_dequeue(vpool->ring, (void *)mbuf);
Here we are expecting the address of &mbuf, not mbuf, which is NULL.
>       if (unlikely(mbuf == NULL)) {
>               LOG_DEBUG(VHOST_DATA,
>                       "(%"PRIu64") in attach_rxmbuf_zcp: "
> @@ -1801,7 +1801,7 @@ virtio_tx_route_zcp(struct virtio_net *dev, struct 
> rte_mbuf *m,
>  
>       /* Allocate an mbuf and populate the structure. */
>       vpool = &vpool_array[MAX_QUEUES + vmdq_rx_q];
> -     rte_ring_sc_dequeue(vpool->ring, (void **)&mbuf);
> +     rte_ring_sc_dequeue(vpool->ring, (void *)mbuf);
Same as above.
>       if (unlikely(mbuf == NULL)) {
>               struct vhost_virtqueue *vq = dev->virtqueue[VIRTIO_TXQ];
>               RTE_LOG(ERR, VHOST_DATA,