Jakub Kicinski [off-list ref] writes:

cbs_set_port_rate() and taprio_set_picos_per_byte() are reached from
two paths and both already hold the device's ops lock:

 *_change(), via tc_modify_qdisc() which calls netdev_lock_ops(dev)
    before dispatching to the qdisc ops.

 *_dev_notifier() on NETDEV_UP / NETDEV_CHANGE, where caller
    holds the ops lock across the notifier chain.

Switch to netif_get_link_ksettings() to avoid deadlock once
__ethtool_get_link_ksettings() starts taking the netdev lock.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---

Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>


Cheers,
-- 
Vinicius