# Re: \[PATCH net-next v8 11/16\] netkit: Implement rtnl\_link\_ops-\>alloc and ndo\_queue\_create

- From: Jakub Kicinski \<kuba@kernel.org\>
- Date: 2026-02-01 00:19:05 
- List: netdev
- Page: https://ratatoskr.run/netdev/2026/02/7942266
- Thread: https://ratatoskr.run/netdev/2026/01/7942161/t.md

```text
On Thu, 29 Jan 2026 23:28:25 +0100 Daniel Borkmann wrote:
> +	if (netif_running(dev))
> +		netif_carrier_off(dev);
> +	err = netif_set_real_num_rx_queues(dev, rxq_count_new);
> +	if (netif_running(dev))
> +		netif_carrier_on(dev);

Why do we need to flap the carrier?
(If there's a reason perhaps add a comment?)
```