Re: [net-next, v2, 2/2] enetc: support PTP Sync packet one-step timestamping

[Jakub Kicinski]

On Thu, 8 Apr 2021 09:02:50 -0700 Jakub Kicinski wrote:
>               if (priv->flags & ONESTEP_BUSY) {
>                       skb_queue_tail(&priv->tx_skbs, skb);
>                       return ...;
>               }
>               priv->flags |= ONESTEP_BUSY;

Ah, if you have multiple queues this needs to be under a separate
spinlock, 'cause netif_tx_lock() won't be enough.