Re: [RFC net-next] netdev-genl: Elide napi_id for TX-only NAPIs

From: Jakub Kicinski
Date: Tue Jan 28 2025 - 17:27:41 EST


On Tue, 28 Jan 2025 16:30:37 +0000 Joe Damato wrote:
> - if (txq->napi && nla_put_u32(rsp, NETDEV_A_QUEUE_NAPI_ID,
> - txq->napi->napi_id))
> + if (!txq->napi)
> goto nla_put_failure;

Skip the attr but no need to fail. We're reporting info about a queue
here, the queue still exists, even if we can't report a valid NAPI ID.

> + if (txq->napi->napi_id >= MIN_NAPI_ID)
> + if (nla_put_u32(rsp, NETDEV_A_QUEUE_NAPI_ID,
> + txq->napi->napi_id))
> + goto nla_put_failure;

Similar treatment should be applied to the Rx queues, I reckon.