On Thu, Jan 19, 2017 at 06:39:13PM +0000, Ferruh Yigit wrote:
> > struct rte_eth_dev *
> > rte_eth_dev_allocate(const char *name)
> > {
> > @@ -210,13 +223,41 @@ struct rte_eth_dev *
> > return NULL;
> > }
> >
> > - eth_dev = &rte_eth_devices[port_id];
> > - eth_dev->data = &rte_eth_dev_data[port_id];
> > + eth_dev = eth_dev_get(port_id);
>
> There can be a merge issue here, please help me understand.
>
> In repo, different from seen here, this patch does this here:
> - eth_dev = &rte_eth_devices[port_id];
> - eth_dev->data = &rte_eth_dev_data[port_id];
> - memset(eth_dev->data, 0, sizeof(*eth_dev->data));
> + memset(&rte_eth_devices[port_id], 0, sizeof(*eth_dev->data));
> + eth_dev = eth_dev_get(port_id);
>
> Which no more resets the eth_dev->data, but rte_eth_devices[port_id]
> (with sizeof(*eth_dev->data))
Nice catch! Sorry, it's a silly error by auto-complete :/
As you said, it should be:
memset(&rte_eth_dev_data[port_id], 0, sizeof(struct rte_eth_dev_data));
Will make a patch soon. Thanks.
--yliu
>
> memset(eth_dev->data) added by Jan Blunck on comment:
> 7f95f78a8aea ("ethdev: clear data when allocating device")
>
> most probably it should stay as "memset(eth_dev->data)", but if not,
> please aware that commit 7f95f78a8aea removed some assignment from
> drivers relying this memset, they needs to be added back.
