[PATCH] eventdev/eth_rx: fix queue config get API

[Jayatheerthan, Jay]

Hi Harish,

> -----Original Message-----
> From: Jerin Jacob <jerinjacobk at gmail.com>
> Sent: Monday, February 14, 2022 8:59 PM
> To: Naga Harish K, S V <s.v.naga.harish.k at intel.com>
> Cc: Jayatheerthan, Jay <jay.jayatheerthan at intel.com>; Jerin Jacob <jerinj at marvell.com>; dpdk-dev <dev at dpdk.org>
> Subject: Re: [PATCH] eventdev/eth_rx: fix queue config get API
> 
> On Wed, Feb 9, 2022 at 10:40 AM Naga Harish K S V
> <s.v.naga.harish.k at intel.com> wrote:
> >
> > the memcpy size used in queue config get function is more than
> > the source size. Use correct size to avoid copy of unnecessary
> > data.
> >
> > Fixes: da781e6488 ("eventdev/eth_rx: support Rx queue config get")
> >
> > Signed-off-by: Naga Harish K S V <s.v.naga.harish.k at intel.com>
> 
> Hi @Jayatheerthan, Jay
> 
> Could you review it?
> 
> 
> > ---
> >  lib/eventdev/rte_event_eth_rx_adapter.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/lib/eventdev/rte_event_eth_rx_adapter.c b/lib/eventdev/rte_event_eth_rx_adapter.c
> > index ae1e260c08..e44499e887 100644
> > --- a/lib/eventdev/rte_event_eth_rx_adapter.c
> > +++ b/lib/eventdev/rte_event_eth_rx_adapter.c
> > @@ -3238,7 +3238,7 @@ rte_event_eth_rx_adapter_queue_conf_get(uint8_t id,
> >                         RTE_EVENT_ETH_RX_ADAPTER_QUEUE_FLOW_ID_VALID;
> >         queue_conf->servicing_weight = queue_info->wt;
> >
> > -       memcpy(&queue_conf->ev, qi_ev, sizeof(*qi_ev));
> > +       memcpy(&queue_conf->ev, qi_ev, sizeof(queue_info->event));

Why do we need to assign queue_info->event to qi_ev and then copy it to queue_conf->ev ? We should be able to do straight copy from queue_info->event to queue_conf->ev.

> >
> >         dev = &rte_eventdevs[rx_adapter->eventdev_id];
> >         if (dev->dev_ops->eth_rx_adapter_queue_conf_get != NULL) {
> > --
> > 2.23.0
> >