[dpdk-dev] [dpdk-stable] [PATCH] net/bonding: fix crash when stopping mode 4 port

[Ferruh Yigit]

On 11/8/2018 3:26 PM, Radu Nicolau wrote:
> When stopping a bonded port all slaves are deactivated. Attempting
> to deactivate a slave that was never activated will result in a segfault
> when mode 4 is used.
> 
> Fixes: 7486331308f6 ("net/bonding: stop and deactivate slaves on stop")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Radu Nicolau <radu.nicolau at intel.com>
> ---
>  drivers/net/bonding/rte_eth_bond_pmd.c | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
> index 1a6d8e4..2661620 100644
> --- a/drivers/net/bonding/rte_eth_bond_pmd.c
> +++ b/drivers/net/bonding/rte_eth_bond_pmd.c
> @@ -2181,9 +2181,14 @@ bond_ethdev_stop(struct rte_eth_dev *eth_dev)
>  
>  	internals->link_status_polling_enabled = 0;
>  	for (i = 0; i < internals->slave_count; i++) {
> -		internals->slaves[i].last_link_status = 0;
> -		rte_eth_dev_stop(internals->slaves[i].port_id);
> -		deactivate_slave(eth_dev, internals->slaves[i].port_id);
> +		uint16_t slave_id = internals->slaves[i].port_id;
> +		if (find_slave_by_id(internals->active_slaves,
> +				internals->active_slave_count, slave_id) !=
> +						internals->active_slave_count) {
> +			internals->slaves[i].last_link_status = 0;
> +			rte_eth_dev_stop(slave_id);
> +			deactivate_slave(eth_dev, slave_id);
> +		}
>  	}
>  }

Hi Chas, Declan,

Any comment on patch? I think we should have this for rc3.