Re: [dpdk-dev] [PATCH 2/3] net/bonding: fix not checked return value

["Min Hu (Connor)" <humin29@huawei.com>]

在 2021/6/22 17:25, Martin Havlik 写道:
> Return value from bond_ethdev_8023ad_flow_set() is now checked
> and appropriate message is logged on error.
> 
> Fixes: 112891cd27e5 ("net/bonding: add dedicated HW queues for LACP control")
> Cc: tomaszx.kulasek@intel.com
> 
> Signed-off-by: Martin Havlik <xhavli56@stud.fit.vutbr.cz>
> Cc: Jan Viktorin <viktorin@cesnet.cz>
> ---
>   drivers/net/bonding/rte_eth_bond_pmd.c | 8 +++++++-
>   1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
> index 4c43bf916..a6755661c 100644
> --- a/drivers/net/bonding/rte_eth_bond_pmd.c
> +++ b/drivers/net/bonding/rte_eth_bond_pmd.c
> @@ -1819,8 +1819,14 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev,
>   					internals->mode4.dedicated_queues.flow[slave_eth_dev->data->port_id],
>   					&flow_error);
>   
> -		bond_ethdev_8023ad_flow_set(bonded_eth_dev,
> +		errval = bond_ethdev_8023ad_flow_set(bonded_eth_dev,
>   				slave_eth_dev->data->port_id);
> +		if (errval != 0) {
> +			RTE_BOND_LOG(ERR,
> +				"bond_ethdev_8023ad_flow_set: port=%d, err (%d)",
> +				slave_eth_dev->data->port_id, errval);
> +			return errval;
> +		}
>   	}
>   
Firstly, I think your patch is OK,
But I want to know what is your standard to decide which function should 
check return value or not(of course, they are none-void)?

While, I noticed "bond_ethdev_lsc_event_callback" nearby was not
checked, but you ignored it.

>   	/* Start device */
>