When kni driver calls eth_kni_start to start device, some fields such as min_mtu and max_mtu of rte_kni_conf are not initialized. It will cause kni_ioctl_create create a kni netdevice with a random min_mtu and max_mtu value. This is unexpected and sometimes we could not change the kni device mtu with ip link command.
Fixes: ff1e35fb5f83 ("kni: calculate MTU from mbuf size") Cc: sta...@dpdk.org Signed-off-by: Harold Huang <baymaxhu...@gmail.com> --- drivers/net/kni/rte_eth_kni.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/kni/rte_eth_kni.c b/drivers/net/kni/rte_eth_kni.c index c428caf441..ba58d9dbae 100644 --- a/drivers/net/kni/rte_eth_kni.c +++ b/drivers/net/kni/rte_eth_kni.c @@ -124,7 +124,7 @@ eth_kni_start(struct rte_eth_dev *dev) struct pmd_internals *internals = dev->data->dev_private; uint16_t port_id = dev->data->port_id; struct rte_mempool *mb_pool; - struct rte_kni_conf conf; + struct rte_kni_conf conf = { 0 }; const char *name = dev->device->name + 4; /* remove net_ */ mb_pool = internals->rx_queues[0].mb_pool; -- 2.27.0